Adding upstream version 2.11.2.upstream/2.11.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

14 files changed, 4459 insertions, 0 deletions

diff --git a/libdb/Makefile.am b/libdb/Makefile.am
new file mode 100644
index 0000000..87c6991
--- /dev/null
+++ b/libdb/Makefile.am
@@ -0,0 +1,49 @@
+## Process this file with automake to produce Makefile.in
+##
+## Copyright (C) 1994, 1995 Graeme Wilford.
+## Copyright (C) 2001, 2003, 2005, 2006, 2007 Colin Watson.
+##
+## This file is part of man-db.
+##
+## man-db is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## man-db is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with man-db; if not, write to the Free Software Foundation,
+## Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+pkglib_LTLIBRARIES = libmandb.la
+dist_noinst_DATA = README
+
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+
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+	-I$(top_srcdir)/include \
+	-I$(top_srcdir)/gl/lib \
+	-I$(top_builddir)/gl/lib \
+	-I$(top_srcdir)/lib
+
+libmandb_la_SOURCES = \
+	db_btree.c \
+	db_delete.c \
+	db_gdbm.c \
+	db_lookup.c \
+	db_ndbm.c \
+	db_storage.h \
+	db_store.c \
+	db_ver.c \
+	db_xdbm.c \
+	db_xdbm.h \
+	mydbm.h
+
+libmandb_la_LIBADD = ../lib/libman.la $(DBLIBS) @LTLIBINTL@
+
+libmandb_la_LDFLAGS = \
+	-avoid-version -release $(VERSION) -rpath $(pkglibdir) -no-undefined
diff --git a/libdb/Makefile.in b/libdb/Makefile.in
new file mode 100644
index 0000000..fd68bad
--- /dev/null
+++ b/libdb/Makefile.in
@@ -0,0 +1,2079 @@
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+GL_GNULIB_PIPE = @GL_GNULIB_PIPE@
+GL_GNULIB_PIPE2 = @GL_GNULIB_PIPE2@
+GL_GNULIB_POPEN = @GL_GNULIB_POPEN@
+GL_GNULIB_POSIX_MEMALIGN = @GL_GNULIB_POSIX_MEMALIGN@
+GL_GNULIB_POSIX_OPENPT = @GL_GNULIB_POSIX_OPENPT@
+GL_GNULIB_PREAD = @GL_GNULIB_PREAD@
+GL_GNULIB_PRINTF = @GL_GNULIB_PRINTF@
+GL_GNULIB_PRINTF_POSIX = @GL_GNULIB_PRINTF_POSIX@
+GL_GNULIB_PSELECT = @GL_GNULIB_PSELECT@
+GL_GNULIB_PTHREAD_SIGMASK = @GL_GNULIB_PTHREAD_SIGMASK@
+GL_GNULIB_PTSNAME = @GL_GNULIB_PTSNAME@
+GL_GNULIB_PTSNAME_R = @GL_GNULIB_PTSNAME_R@
+GL_GNULIB_PUTC = @GL_GNULIB_PUTC@
+GL_GNULIB_PUTCHAR = @GL_GNULIB_PUTCHAR@
+GL_GNULIB_PUTENV = @GL_GNULIB_PUTENV@
+GL_GNULIB_PUTS = @GL_GNULIB_PUTS@
+GL_GNULIB_PWRITE = @GL_GNULIB_PWRITE@
+GL_GNULIB_QSORT_R = @GL_GNULIB_QSORT_R@
+GL_GNULIB_RAISE = @GL_GNULIB_RAISE@
+GL_GNULIB_RANDOM = @GL_GNULIB_RANDOM@
+GL_GNULIB_RANDOM_R = @GL_GNULIB_RANDOM_R@
+GL_GNULIB_RAWMEMCHR = @GL_GNULIB_RAWMEMCHR@
+GL_GNULIB_READ = @GL_GNULIB_READ@
+GL_GNULIB_READDIR = @GL_GNULIB_READDIR@
+GL_GNULIB_READLINK = @GL_GNULIB_READLINK@
+GL_GNULIB_READLINKAT = @GL_GNULIB_READLINKAT@
+GL_GNULIB_REALLOCARRAY = @GL_GNULIB_REALLOCARRAY@
+GL_GNULIB_REALLOC_GNU = @GL_GNULIB_REALLOC_GNU@
+GL_GNULIB_REALLOC_POSIX = @GL_GNULIB_REALLOC_POSIX@
+GL_GNULIB_REALPATH = @GL_GNULIB_REALPATH@
+GL_GNULIB_RECV = @GL_GNULIB_RECV@
+GL_GNULIB_RECVFROM = @GL_GNULIB_RECVFROM@
+GL_GNULIB_REMOVE = @GL_GNULIB_REMOVE@
+GL_GNULIB_RENAME = @GL_GNULIB_RENAME@
+GL_GNULIB_RENAMEAT = @GL_GNULIB_RENAMEAT@
+GL_GNULIB_REWINDDIR = @GL_GNULIB_REWINDDIR@
+GL_GNULIB_RMDIR = @GL_GNULIB_RMDIR@
+GL_GNULIB_RPMATCH = @GL_GNULIB_RPMATCH@
+GL_GNULIB_SCANDIR = @GL_GNULIB_SCANDIR@
+GL_GNULIB_SCANF = @GL_GNULIB_SCANF@
+GL_GNULIB_SECURE_GETENV = @GL_GNULIB_SECURE_GETENV@
+GL_GNULIB_SELECT = @GL_GNULIB_SELECT@
+GL_GNULIB_SEND = @GL_GNULIB_SEND@
+GL_GNULIB_SENDTO = @GL_GNULIB_SENDTO@
+GL_GNULIB_SETENV = @GL_GNULIB_SETENV@
+GL_GNULIB_SETHOSTNAME = @GL_GNULIB_SETHOSTNAME@
+GL_GNULIB_SETLOCALE = @GL_GNULIB_SETLOCALE@
+GL_GNULIB_SETLOCALE_NULL = @GL_GNULIB_SETLOCALE_NULL@
+GL_GNULIB_SETSOCKOPT = @GL_GNULIB_SETSOCKOPT@
+GL_GNULIB_SHUTDOWN = @GL_GNULIB_SHUTDOWN@
+GL_GNULIB_SIGABBREV_NP = @GL_GNULIB_SIGABBREV_NP@
+GL_GNULIB_SIGACTION = @GL_GNULIB_SIGACTION@
+GL_GNULIB_SIGDESCR_NP = @GL_GNULIB_SIGDESCR_NP@
+GL_GNULIB_SIGNAL_H_SIGPIPE = @GL_GNULIB_SIGNAL_H_SIGPIPE@
+GL_GNULIB_SIGPROCMASK = @GL_GNULIB_SIGPROCMASK@
+GL_GNULIB_SLEEP = @GL_GNULIB_SLEEP@
+GL_GNULIB_SNPRINTF = @GL_GNULIB_SNPRINTF@
+GL_GNULIB_SOCKET = @GL_GNULIB_SOCKET@
+GL_GNULIB_SPRINTF_POSIX = @GL_GNULIB_SPRINTF_POSIX@
+GL_GNULIB_STAT = @GL_GNULIB_STAT@
+GL_GNULIB_STDIO_H_NONBLOCKING = @GL_GNULIB_STDIO_H_NONBLOCKING@
+GL_GNULIB_STDIO_H_SIGPIPE = @GL_GNULIB_STDIO_H_SIGPIPE@
+GL_GNULIB_STPCPY = @GL_GNULIB_STPCPY@
+GL_GNULIB_STPNCPY = @GL_GNULIB_STPNCPY@
+GL_GNULIB_STRCASESTR = @GL_GNULIB_STRCASESTR@
+GL_GNULIB_STRCHRNUL = @GL_GNULIB_STRCHRNUL@
+GL_GNULIB_STRDUP = @GL_GNULIB_STRDUP@
+GL_GNULIB_STRERROR = @GL_GNULIB_STRERROR@
+GL_GNULIB_STRERRORNAME_NP = @GL_GNULIB_STRERRORNAME_NP@
+GL_GNULIB_STRERROR_R = @GL_GNULIB_STRERROR_R@
+GL_GNULIB_STRFTIME = @GL_GNULIB_STRFTIME@
+GL_GNULIB_STRNCAT = @GL_GNULIB_STRNCAT@
+GL_GNULIB_STRNDUP = @GL_GNULIB_STRNDUP@
+GL_GNULIB_STRNLEN = @GL_GNULIB_STRNLEN@
+GL_GNULIB_STRPBRK = @GL_GNULIB_STRPBRK@
+GL_GNULIB_STRPTIME = @GL_GNULIB_STRPTIME@
+GL_GNULIB_STRSEP = @GL_GNULIB_STRSEP@
+GL_GNULIB_STRSIGNAL = @GL_GNULIB_STRSIGNAL@
+GL_GNULIB_STRSTR = @GL_GNULIB_STRSTR@
+GL_GNULIB_STRTOD = @GL_GNULIB_STRTOD@
+GL_GNULIB_STRTOIMAX = @GL_GNULIB_STRTOIMAX@
+GL_GNULIB_STRTOK_R = @GL_GNULIB_STRTOK_R@
+GL_GNULIB_STRTOL = @GL_GNULIB_STRTOL@
+GL_GNULIB_STRTOLD = @GL_GNULIB_STRTOLD@
+GL_GNULIB_STRTOLL = @GL_GNULIB_STRTOLL@
+GL_GNULIB_STRTOUL = @GL_GNULIB_STRTOUL@
+GL_GNULIB_STRTOULL = @GL_GNULIB_STRTOULL@
+GL_GNULIB_STRTOUMAX = @GL_GNULIB_STRTOUMAX@
+GL_GNULIB_STRVERSCMP = @GL_GNULIB_STRVERSCMP@
+GL_GNULIB_SYMLINK = @GL_GNULIB_SYMLINK@
+GL_GNULIB_SYMLINKAT = @GL_GNULIB_SYMLINKAT@
+GL_GNULIB_SYSTEM_POSIX = @GL_GNULIB_SYSTEM_POSIX@
+GL_GNULIB_TCGETSID = @GL_GNULIB_TCGETSID@
+GL_GNULIB_TIMEGM = @GL_GNULIB_TIMEGM@
+GL_GNULIB_TIMESPEC_GET = @GL_GNULIB_TIMESPEC_GET@
+GL_GNULIB_TIMESPEC_GETRES = @GL_GNULIB_TIMESPEC_GETRES@
+GL_GNULIB_TIME_R = @GL_GNULIB_TIME_R@
+GL_GNULIB_TIME_RZ = @GL_GNULIB_TIME_RZ@
+GL_GNULIB_TMPFILE = @GL_GNULIB_TMPFILE@
+GL_GNULIB_TOWCTRANS = @GL_GNULIB_TOWCTRANS@
+GL_GNULIB_TRUNCATE = @GL_GNULIB_TRUNCATE@
+GL_GNULIB_TTYNAME_R = @GL_GNULIB_TTYNAME_R@
+GL_GNULIB_TZSET = @GL_GNULIB_TZSET@
+GL_GNULIB_UNISTD_H_GETOPT = @GL_GNULIB_UNISTD_H_GETOPT@
+GL_GNULIB_UNISTD_H_NONBLOCKING = @GL_GNULIB_UNISTD_H_NONBLOCKING@
+GL_GNULIB_UNISTD_H_SIGPIPE = @GL_GNULIB_UNISTD_H_SIGPIPE@
+GL_GNULIB_UNLINK = @GL_GNULIB_UNLINK@
+GL_GNULIB_UNLINKAT = @GL_GNULIB_UNLINKAT@
+GL_GNULIB_UNLOCKPT = @GL_GNULIB_UNLOCKPT@
+GL_GNULIB_UNSETENV = @GL_GNULIB_UNSETENV@
+GL_GNULIB_USLEEP = @GL_GNULIB_USLEEP@
+GL_GNULIB_UTIME = @GL_GNULIB_UTIME@
+GL_GNULIB_UTIMENSAT = @GL_GNULIB_UTIMENSAT@
+GL_GNULIB_VASPRINTF = @GL_GNULIB_VASPRINTF@
+GL_GNULIB_VDPRINTF = @GL_GNULIB_VDPRINTF@
+GL_GNULIB_VFPRINTF = @GL_GNULIB_VFPRINTF@
+GL_GNULIB_VFPRINTF_POSIX = @GL_GNULIB_VFPRINTF_POSIX@
+GL_GNULIB_VFSCANF = @GL_GNULIB_VFSCANF@
+GL_GNULIB_VPRINTF = @GL_GNULIB_VPRINTF@
+GL_GNULIB_VPRINTF_POSIX = @GL_GNULIB_VPRINTF_POSIX@
+GL_GNULIB_VSCANF = @GL_GNULIB_VSCANF@
+GL_GNULIB_VSNPRINTF = @GL_GNULIB_VSNPRINTF@
+GL_GNULIB_VSPRINTF_POSIX = @GL_GNULIB_VSPRINTF_POSIX@
+GL_GNULIB_WCPCPY = @GL_GNULIB_WCPCPY@
+GL_GNULIB_WCPNCPY = @GL_GNULIB_WCPNCPY@
+GL_GNULIB_WCRTOMB = @GL_GNULIB_WCRTOMB@
+GL_GNULIB_WCSCASECMP = @GL_GNULIB_WCSCASECMP@
+GL_GNULIB_WCSCAT = @GL_GNULIB_WCSCAT@
+GL_GNULIB_WCSCHR = @GL_GNULIB_WCSCHR@
+GL_GNULIB_WCSCMP = @GL_GNULIB_WCSCMP@
+GL_GNULIB_WCSCOLL = @GL_GNULIB_WCSCOLL@
+GL_GNULIB_WCSCPY = @GL_GNULIB_WCSCPY@
+GL_GNULIB_WCSCSPN = @GL_GNULIB_WCSCSPN@
+GL_GNULIB_WCSDUP = @GL_GNULIB_WCSDUP@
+GL_GNULIB_WCSFTIME = @GL_GNULIB_WCSFTIME@
+GL_GNULIB_WCSLEN = @GL_GNULIB_WCSLEN@
+GL_GNULIB_WCSNCASECMP = @GL_GNULIB_WCSNCASECMP@
+GL_GNULIB_WCSNCAT = @GL_GNULIB_WCSNCAT@
+GL_GNULIB_WCSNCMP = @GL_GNULIB_WCSNCMP@
+GL_GNULIB_WCSNCPY = @GL_GNULIB_WCSNCPY@
+GL_GNULIB_WCSNLEN = @GL_GNULIB_WCSNLEN@
+GL_GNULIB_WCSNRTOMBS = @GL_GNULIB_WCSNRTOMBS@
+GL_GNULIB_WCSPBRK = @GL_GNULIB_WCSPBRK@
+GL_GNULIB_WCSRCHR = @GL_GNULIB_WCSRCHR@
+GL_GNULIB_WCSRTOMBS = @GL_GNULIB_WCSRTOMBS@
+GL_GNULIB_WCSSPN = @GL_GNULIB_WCSSPN@
+GL_GNULIB_WCSSTR = @GL_GNULIB_WCSSTR@
+GL_GNULIB_WCSTOK = @GL_GNULIB_WCSTOK@
+GL_GNULIB_WCSWIDTH = @GL_GNULIB_WCSWIDTH@
+GL_GNULIB_WCSXFRM = @GL_GNULIB_WCSXFRM@
+GL_GNULIB_WCTOB = @GL_GNULIB_WCTOB@
+GL_GNULIB_WCTOMB = @GL_GNULIB_WCTOMB@
+GL_GNULIB_WCTRANS = @GL_GNULIB_WCTRANS@
+GL_GNULIB_WCTYPE = @GL_GNULIB_WCTYPE@
+GL_GNULIB_WCWIDTH = @GL_GNULIB_WCWIDTH@
+GL_GNULIB_WMEMCHR = @GL_GNULIB_WMEMCHR@
+GL_GNULIB_WMEMCMP = @GL_GNULIB_WMEMCMP@
+GL_GNULIB_WMEMCPY = @GL_GNULIB_WMEMCPY@
+GL_GNULIB_WMEMMOVE = @GL_GNULIB_WMEMMOVE@
+GL_GNULIB_WMEMPCPY = @GL_GNULIB_WMEMPCPY@
+GL_GNULIB_WMEMSET = @GL_GNULIB_WMEMSET@
+GL_GNULIB_WRITE = @GL_GNULIB_WRITE@
+GL_GNULIB__EXIT = @GL_GNULIB__EXIT@
+GMSGFMT = @GMSGFMT@
+GMSGFMT_015 = @GMSGFMT_015@
+GNULIBHEADERS_OVERRIDE_WINT_T = @GNULIBHEADERS_OVERRIDE_WINT_T@
+GNULIB_GETTIMEOFDAY = @GNULIB_GETTIMEOFDAY@
+GREP = @GREP@
+HAVE_ACCEPT4 = @HAVE_ACCEPT4@
+HAVE_ALIGNED_ALLOC = @HAVE_ALIGNED_ALLOC@
+HAVE_ALLOCA_H = @HAVE_ALLOCA_H@
+HAVE_ALPHASORT = @HAVE_ALPHASORT@
+HAVE_ATOLL = @HAVE_ATOLL@
+HAVE_BTOWC = @HAVE_BTOWC@
+HAVE_C99_STDINT_H = @HAVE_C99_STDINT_H@
+HAVE_CANONICALIZE_FILE_NAME = @HAVE_CANONICALIZE_FILE_NAME@
+HAVE_CHOWN = @HAVE_CHOWN@
+HAVE_CLOSEDIR = @HAVE_CLOSEDIR@
+HAVE_COPY_FILE_RANGE = @HAVE_COPY_FILE_RANGE@
+HAVE_CRTDEFS_H = @HAVE_CRTDEFS_H@
+HAVE_DECL_DIRFD = @HAVE_DECL_DIRFD@
+HAVE_DECL_ECVT = @HAVE_DECL_ECVT@
+HAVE_DECL_ENVIRON = @HAVE_DECL_ENVIRON@
+HAVE_DECL_EXECVPE = @HAVE_DECL_EXECVPE@
+HAVE_DECL_FCHDIR = @HAVE_DECL_FCHDIR@
+HAVE_DECL_FCLOSEALL = @HAVE_DECL_FCLOSEALL@
+HAVE_DECL_FCVT = @HAVE_DECL_FCVT@
+HAVE_DECL_FDATASYNC = @HAVE_DECL_FDATASYNC@
+HAVE_DECL_FDOPENDIR = @HAVE_DECL_FDOPENDIR@
+HAVE_DECL_FPURGE = @HAVE_DECL_FPURGE@
+HAVE_DECL_FSEEKO = @HAVE_DECL_FSEEKO@
+HAVE_DECL_FTELLO = @HAVE_DECL_FTELLO@
+HAVE_DECL_GCVT = @HAVE_DECL_GCVT@
+HAVE_DECL_GETDELIM = @HAVE_DECL_GETDELIM@
+HAVE_DECL_GETDOMAINNAME = @HAVE_DECL_GETDOMAINNAME@
+HAVE_DECL_GETLINE = @HAVE_DECL_GETLINE@
+HAVE_DECL_GETLOADAVG = @HAVE_DECL_GETLOADAVG@
+HAVE_DECL_GETLOGIN = @HAVE_DECL_GETLOGIN@
+HAVE_DECL_GETLOGIN_R = @HAVE_DECL_GETLOGIN_R@
+HAVE_DECL_GETPAGESIZE = @HAVE_DECL_GETPAGESIZE@
+HAVE_DECL_GETUSERSHELL = @HAVE_DECL_GETUSERSHELL@
+HAVE_DECL_IMAXABS = @HAVE_DECL_IMAXABS@
+HAVE_DECL_IMAXDIV = @HAVE_DECL_IMAXDIV@
+HAVE_DECL_INITSTATE = @HAVE_DECL_INITSTATE@
+HAVE_DECL_LOCALTIME_R = @HAVE_DECL_LOCALTIME_R@
+HAVE_DECL_MEMMEM = @HAVE_DECL_MEMMEM@
+HAVE_DECL_MEMRCHR = @HAVE_DECL_MEMRCHR@
+HAVE_DECL_OBSTACK_PRINTF = @HAVE_DECL_OBSTACK_PRINTF@
+HAVE_DECL_SETENV = @HAVE_DECL_SETENV@
+HAVE_DECL_SETHOSTNAME = @HAVE_DECL_SETHOSTNAME@
+HAVE_DECL_SETSTATE = @HAVE_DECL_SETSTATE@
+HAVE_DECL_SNPRINTF = @HAVE_DECL_SNPRINTF@
+HAVE_DECL_STRDUP = @HAVE_DECL_STRDUP@
+HAVE_DECL_STRERROR_R = @HAVE_DECL_STRERROR_R@
+HAVE_DECL_STRNCASECMP = @HAVE_DECL_STRNCASECMP@
+HAVE_DECL_STRNDUP = @HAVE_DECL_STRNDUP@
+HAVE_DECL_STRNLEN = @HAVE_DECL_STRNLEN@
+HAVE_DECL_STRSIGNAL = @HAVE_DECL_STRSIGNAL@
+HAVE_DECL_STRTOIMAX = @HAVE_DECL_STRTOIMAX@
+HAVE_DECL_STRTOK_R = @HAVE_DECL_STRTOK_R@
+HAVE_DECL_STRTOUMAX = @HAVE_DECL_STRTOUMAX@
+HAVE_DECL_TCGETSID = @HAVE_DECL_TCGETSID@
+HAVE_DECL_TRUNCATE = @HAVE_DECL_TRUNCATE@
+HAVE_DECL_TTYNAME_R = @HAVE_DECL_TTYNAME_R@
+HAVE_DECL_UNSETENV = @HAVE_DECL_UNSETENV@
+HAVE_DECL_VSNPRINTF = @HAVE_DECL_VSNPRINTF@
+HAVE_DECL_WCSDUP = @HAVE_DECL_WCSDUP@
+HAVE_DECL_WCTOB = @HAVE_DECL_WCTOB@
+HAVE_DECL_WCWIDTH = @HAVE_DECL_WCWIDTH@
+HAVE_DIRENT_H = @HAVE_DIRENT_H@
+HAVE_DPRINTF = @HAVE_DPRINTF@
+HAVE_DUP3 = @HAVE_DUP3@
+HAVE_DUPLOCALE = @HAVE_DUPLOCALE@
+HAVE_EUIDACCESS = @HAVE_EUIDACCESS@
+HAVE_EXECVPE = @HAVE_EXECVPE@
+HAVE_EXPLICIT_BZERO = @HAVE_EXPLICIT_BZERO@
+HAVE_FACCESSAT = @HAVE_FACCESSAT@
+HAVE_FCHDIR = @HAVE_FCHDIR@
+HAVE_FCHMODAT = @HAVE_FCHMODAT@
+HAVE_FCHOWNAT = @HAVE_FCHOWNAT@
+HAVE_FCNTL = @HAVE_FCNTL@
+HAVE_FDATASYNC = @HAVE_FDATASYNC@
+HAVE_FDOPENDIR = @HAVE_FDOPENDIR@
+HAVE_FEATURES_H = @HAVE_FEATURES_H@
+HAVE_FFS = @HAVE_FFS@
+HAVE_FFSL = @HAVE_FFSL@
+HAVE_FFSLL = @HAVE_FFSLL@
+HAVE_FLOCK = @HAVE_FLOCK@
+HAVE_FNMATCH = @HAVE_FNMATCH@
+HAVE_FNMATCH_H = @HAVE_FNMATCH_H@
+HAVE_FREELOCALE = @HAVE_FREELOCALE@
+HAVE_FSEEKO = @HAVE_FSEEKO@
+HAVE_FSTATAT = @HAVE_FSTATAT@
+HAVE_FSYNC = @HAVE_FSYNC@
+HAVE_FTELLO = @HAVE_FTELLO@
+HAVE_FTRUNCATE = @HAVE_FTRUNCATE@
+HAVE_FUTIMENS = @HAVE_FUTIMENS@
+HAVE_GETDTABLESIZE = @HAVE_GETDTABLESIZE@
+HAVE_GETENTROPY = @HAVE_GETENTROPY@
+HAVE_GETGROUPS = @HAVE_GETGROUPS@
+HAVE_GETHOSTNAME = @HAVE_GETHOSTNAME@
+HAVE_GETLOGIN = @HAVE_GETLOGIN@
+HAVE_GETOPT_H = @HAVE_GETOPT_H@
+HAVE_GETPAGESIZE = @HAVE_GETPAGESIZE@
+HAVE_GETPASS = @HAVE_GETPASS@
+HAVE_GETRANDOM = @HAVE_GETRANDOM@
+HAVE_GETSUBOPT = @HAVE_GETSUBOPT@
+HAVE_GETTIMEOFDAY = @HAVE_GETTIMEOFDAY@
+HAVE_GETUMASK = @HAVE_GETUMASK@
+HAVE_GLOB = @HAVE_GLOB@
+HAVE_GLOB_H = @HAVE_GLOB_H@
+HAVE_GLOB_PATTERN_P = @HAVE_GLOB_PATTERN_P@
+HAVE_GRANTPT = @HAVE_GRANTPT@
+HAVE_GROUP_MEMBER = @HAVE_GROUP_MEMBER@
+HAVE_IMAXDIV_T = @HAVE_IMAXDIV_T@
+HAVE_INITSTATE = @HAVE_INITSTATE@
+HAVE_INTTYPES_H = @HAVE_INTTYPES_H@
+HAVE_ISBLANK = @HAVE_ISBLANK@
+HAVE_ISWBLANK = @HAVE_ISWBLANK@
+HAVE_ISWCNTRL = @HAVE_ISWCNTRL@
+HAVE_LANGINFO_ALTMON = @HAVE_LANGINFO_ALTMON@
+HAVE_LANGINFO_CODESET = @HAVE_LANGINFO_CODESET@
+HAVE_LANGINFO_ERA = @HAVE_LANGINFO_ERA@
+HAVE_LANGINFO_H = @HAVE_LANGINFO_H@
+HAVE_LANGINFO_T_FMT_AMPM = @HAVE_LANGINFO_T_FMT_AMPM@
+HAVE_LANGINFO_YESEXPR = @HAVE_LANGINFO_YESEXPR@
+HAVE_LCHMOD = @HAVE_LCHMOD@
+HAVE_LCHOWN = @HAVE_LCHOWN@
+HAVE_LINK = @HAVE_LINK@
+HAVE_LINKAT = @HAVE_LINKAT@
+HAVE_LSTAT = @HAVE_LSTAT@
+HAVE_MAX_ALIGN_T = @HAVE_MAX_ALIGN_T@
+HAVE_MBRLEN = @HAVE_MBRLEN@
+HAVE_MBRTOWC = @HAVE_MBRTOWC@
+HAVE_MBSINIT = @HAVE_MBSINIT@
+HAVE_MBSLEN = @HAVE_MBSLEN@
+HAVE_MBSNRTOWCS = @HAVE_MBSNRTOWCS@
+HAVE_MBSRTOWCS = @HAVE_MBSRTOWCS@
+HAVE_MBTOWC = @HAVE_MBTOWC@
+HAVE_MEMPCPY = @HAVE_MEMPCPY@
+HAVE_MKDIRAT = @HAVE_MKDIRAT@
+HAVE_MKDTEMP = @HAVE_MKDTEMP@
+HAVE_MKFIFO = @HAVE_MKFIFO@
+HAVE_MKFIFOAT = @HAVE_MKFIFOAT@
+HAVE_MKNOD = @HAVE_MKNOD@
+HAVE_MKNODAT = @HAVE_MKNODAT@
+HAVE_MKOSTEMP = @HAVE_MKOSTEMP@
+HAVE_MKOSTEMPS = @HAVE_MKOSTEMPS@
+HAVE_MKSTEMP = @HAVE_MKSTEMP@
+HAVE_MKSTEMPS = @HAVE_MKSTEMPS@
+HAVE_MSVC_INVALID_PARAMETER_HANDLER = @HAVE_MSVC_INVALID_PARAMETER_HANDLER@
+HAVE_NANOSLEEP = @HAVE_NANOSLEEP@
+HAVE_NEWLOCALE = @HAVE_NEWLOCALE@
+HAVE_NL_LANGINFO = @HAVE_NL_LANGINFO@
+HAVE_OPENAT = @HAVE_OPENAT@
+HAVE_OPENDIR = @HAVE_OPENDIR@
+HAVE_OS_H = @HAVE_OS_H@
+HAVE_PCLOSE = @HAVE_PCLOSE@
+HAVE_PIPE = @HAVE_PIPE@
+HAVE_PIPE2 = @HAVE_PIPE2@
+HAVE_POPEN = @HAVE_POPEN@
+HAVE_POSIX_MEMALIGN = @HAVE_POSIX_MEMALIGN@
+HAVE_POSIX_OPENPT = @HAVE_POSIX_OPENPT@
+HAVE_POSIX_SIGNALBLOCKING = @HAVE_POSIX_SIGNALBLOCKING@
+HAVE_PREAD = @HAVE_PREAD@
+HAVE_PSELECT = @HAVE_PSELECT@
+HAVE_PTHREAD_SIGMASK = @HAVE_PTHREAD_SIGMASK@
+HAVE_PTSNAME = @HAVE_PTSNAME@
+HAVE_PTSNAME_R = @HAVE_PTSNAME_R@
+HAVE_PWRITE = @HAVE_PWRITE@
+HAVE_QSORT_R = @HAVE_QSORT_R@
+HAVE_RAISE = @HAVE_RAISE@
+HAVE_RANDOM = @HAVE_RANDOM@
+HAVE_RANDOM_H = @HAVE_RANDOM_H@
+HAVE_RANDOM_R = @HAVE_RANDOM_R@
+HAVE_RAWMEMCHR = @HAVE_RAWMEMCHR@
+HAVE_READDIR = @HAVE_READDIR@
+HAVE_READLINK = @HAVE_READLINK@
+HAVE_READLINKAT = @HAVE_READLINKAT@
+HAVE_REALLOCARRAY = @HAVE_REALLOCARRAY@
+HAVE_REALPATH = @HAVE_REALPATH@
+HAVE_RENAMEAT = @HAVE_RENAMEAT@
+HAVE_REWINDDIR = @HAVE_REWINDDIR@
+HAVE_RPMATCH = @HAVE_RPMATCH@
+HAVE_SA_FAMILY_T = @HAVE_SA_FAMILY_T@
+HAVE_SCANDIR = @HAVE_SCANDIR@
+HAVE_SECURE_GETENV = @HAVE_SECURE_GETENV@
+HAVE_SETENV = @HAVE_SETENV@
+HAVE_SETHOSTNAME = @HAVE_SETHOSTNAME@
+HAVE_SETSTATE = @HAVE_SETSTATE@
+HAVE_SIGABBREV_NP = @HAVE_SIGABBREV_NP@
+HAVE_SIGACTION = @HAVE_SIGACTION@
+HAVE_SIGDESCR_NP = @HAVE_SIGDESCR_NP@
+HAVE_SIGHANDLER_T = @HAVE_SIGHANDLER_T@
+HAVE_SIGINFO_T = @HAVE_SIGINFO_T@
+HAVE_SIGNED_SIG_ATOMIC_T = @HAVE_SIGNED_SIG_ATOMIC_T@
+HAVE_SIGNED_WCHAR_T = @HAVE_SIGNED_WCHAR_T@
+HAVE_SIGNED_WINT_T = @HAVE_SIGNED_WINT_T@
+HAVE_SIGSET_T = @HAVE_SIGSET_T@
+HAVE_SLEEP = @HAVE_SLEEP@
+HAVE_STDINT_H = @HAVE_STDINT_H@
+HAVE_STPCPY = @HAVE_STPCPY@
+HAVE_STPNCPY = @HAVE_STPNCPY@
+HAVE_STRCASECMP = @HAVE_STRCASECMP@
+HAVE_STRCASESTR = @HAVE_STRCASESTR@
+HAVE_STRCHRNUL = @HAVE_STRCHRNUL@
+HAVE_STRERRORNAME_NP = @HAVE_STRERRORNAME_NP@
+HAVE_STRINGS_H = @HAVE_STRINGS_H@
+HAVE_STRPBRK = @HAVE_STRPBRK@
+HAVE_STRPTIME = @HAVE_STRPTIME@
+HAVE_STRSEP = @HAVE_STRSEP@
+HAVE_STRTOD = @HAVE_STRTOD@
+HAVE_STRTOL = @HAVE_STRTOL@
+HAVE_STRTOLD = @HAVE_STRTOLD@
+HAVE_STRTOLL = @HAVE_STRTOLL@
+HAVE_STRTOUL = @HAVE_STRTOUL@
+HAVE_STRTOULL = @HAVE_STRTOULL@
+HAVE_STRUCT_RANDOM_DATA = @HAVE_STRUCT_RANDOM_DATA@
+HAVE_STRUCT_SIGACTION_SA_SIGACTION = @HAVE_STRUCT_SIGACTION_SA_SIGACTION@
+HAVE_STRUCT_SOCKADDR_STORAGE = @HAVE_STRUCT_SOCKADDR_STORAGE@
+HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = @HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY@
+HAVE_STRUCT_TIMEVAL = @HAVE_STRUCT_TIMEVAL@
+HAVE_STRVERSCMP = @HAVE_STRVERSCMP@
+HAVE_SYMLINK = @HAVE_SYMLINK@
+HAVE_SYMLINKAT = @HAVE_SYMLINKAT@
+HAVE_SYSEXITS_H = @HAVE_SYSEXITS_H@
+HAVE_SYS_BITYPES_H = @HAVE_SYS_BITYPES_H@
+HAVE_SYS_CDEFS_H = @HAVE_SYS_CDEFS_H@
+HAVE_SYS_FILE_H = @HAVE_SYS_FILE_H@
+HAVE_SYS_INTTYPES_H = @HAVE_SYS_INTTYPES_H@
+HAVE_SYS_IOCTL_H = @HAVE_SYS_IOCTL_H@
+HAVE_SYS_LOADAVG_H = @HAVE_SYS_LOADAVG_H@
+HAVE_SYS_PARAM_H = @HAVE_SYS_PARAM_H@
+HAVE_SYS_RANDOM_H = @HAVE_SYS_RANDOM_H@
+HAVE_SYS_SELECT_H = @HAVE_SYS_SELECT_H@
+HAVE_SYS_SOCKET_H = @HAVE_SYS_SOCKET_H@
+HAVE_SYS_TIME_H = @HAVE_SYS_TIME_H@
+HAVE_SYS_TYPES_H = @HAVE_SYS_TYPES_H@
+HAVE_SYS_UIO_H = @HAVE_SYS_UIO_H@
+HAVE_TERMIOS_H = @HAVE_TERMIOS_H@
+HAVE_TIMEGM = @HAVE_TIMEGM@
+HAVE_TIMESPEC_GET = @HAVE_TIMESPEC_GET@
+HAVE_TIMESPEC_GETRES = @HAVE_TIMESPEC_GETRES@
+HAVE_TIMEZONE_T = @HAVE_TIMEZONE_T@
+HAVE_TYPE_VOLATILE_SIG_ATOMIC_T = @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@
+HAVE_UNISTD_H = @HAVE_UNISTD_H@
+HAVE_UNLINKAT = @HAVE_UNLINKAT@
+HAVE_UNLOCKPT = @HAVE_UNLOCKPT@
+HAVE_USLEEP = @HAVE_USLEEP@
+HAVE_UTIME = @HAVE_UTIME@
+HAVE_UTIMENSAT = @HAVE_UTIMENSAT@
+HAVE_UTIME_H = @HAVE_UTIME_H@
+HAVE_VASPRINTF = @HAVE_VASPRINTF@
+HAVE_VDPRINTF = @HAVE_VDPRINTF@
+HAVE_VISIBILITY = @HAVE_VISIBILITY@
+HAVE_WCHAR_H = @HAVE_WCHAR_H@
+HAVE_WCHAR_T = @HAVE_WCHAR_T@
+HAVE_WCPCPY = @HAVE_WCPCPY@
+HAVE_WCPNCPY = @HAVE_WCPNCPY@
+HAVE_WCRTOMB = @HAVE_WCRTOMB@
+HAVE_WCSCASECMP = @HAVE_WCSCASECMP@
+HAVE_WCSCAT = @HAVE_WCSCAT@
+HAVE_WCSCHR = @HAVE_WCSCHR@
+HAVE_WCSCMP = @HAVE_WCSCMP@
+HAVE_WCSCOLL = @HAVE_WCSCOLL@
+HAVE_WCSCPY = @HAVE_WCSCPY@
+HAVE_WCSCSPN = @HAVE_WCSCSPN@
+HAVE_WCSDUP = @HAVE_WCSDUP@
+HAVE_WCSFTIME = @HAVE_WCSFTIME@
+HAVE_WCSLEN = @HAVE_WCSLEN@
+HAVE_WCSNCASECMP = @HAVE_WCSNCASECMP@
+HAVE_WCSNCAT = @HAVE_WCSNCAT@
+HAVE_WCSNCMP = @HAVE_WCSNCMP@
+HAVE_WCSNCPY = @HAVE_WCSNCPY@
+HAVE_WCSNLEN = @HAVE_WCSNLEN@
+HAVE_WCSNRTOMBS = @HAVE_WCSNRTOMBS@
+HAVE_WCSPBRK = @HAVE_WCSPBRK@
+HAVE_WCSRCHR = @HAVE_WCSRCHR@
+HAVE_WCSRTOMBS = @HAVE_WCSRTOMBS@
+HAVE_WCSSPN = @HAVE_WCSSPN@
+HAVE_WCSSTR = @HAVE_WCSSTR@
+HAVE_WCSTOK = @HAVE_WCSTOK@
+HAVE_WCSWIDTH = @HAVE_WCSWIDTH@
+HAVE_WCSXFRM = @HAVE_WCSXFRM@
+HAVE_WCTRANS_T = @HAVE_WCTRANS_T@
+HAVE_WCTYPE_H = @HAVE_WCTYPE_H@
+HAVE_WCTYPE_T = @HAVE_WCTYPE_T@
+HAVE_WINSOCK2_H = @HAVE_WINSOCK2_H@
+HAVE_WINT_T = @HAVE_WINT_T@
+HAVE_WMEMCHR = @HAVE_WMEMCHR@
+HAVE_WMEMCMP = @HAVE_WMEMCMP@
+HAVE_WMEMCPY = @HAVE_WMEMCPY@
+HAVE_WMEMMOVE = @HAVE_WMEMMOVE@
+HAVE_WMEMPCPY = @HAVE_WMEMPCPY@
+HAVE_WMEMSET = @HAVE_WMEMSET@
+HAVE_WS2TCPIP_H = @HAVE_WS2TCPIP_H@
+HAVE_XLOCALE_H = @HAVE_XLOCALE_H@
+HAVE__BOOL = @HAVE__BOOL@
+HAVE__EXIT = @HAVE__EXIT@
+IGNORE_UNUSED_LIBRARIES_CFLAGS = @IGNORE_UNUSED_LIBRARIES_CFLAGS@
+INCLUDE_NEXT = @INCLUDE_NEXT@
+INCLUDE_NEXT_AS_FIRST_DIRECTIVE = @INCLUDE_NEXT_AS_FIRST_DIRECTIVE@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INT32_MAX_LT_INTMAX_MAX = @INT32_MAX_LT_INTMAX_MAX@
+INT64_MAX_EQ_LONG_MAX = @INT64_MAX_EQ_LONG_MAX@
+INTLLIBS = @INTLLIBS@
+INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCOMPRESS = @LIBCOMPRESS@
+LIBICONV = @LIBICONV@
+LIBINTL = @LIBINTL@
+LIBMAN_EXPORT_LDFLAGS = @LIBMAN_EXPORT_LDFLAGS@
+LIBMULTITHREAD = @LIBMULTITHREAD@
+LIBOBJS = @LIBOBJS@
+LIBPMULTITHREAD = @LIBPMULTITHREAD@
+LIBPTHREAD = @LIBPTHREAD@
+LIBS = @LIBS@
+LIBSOCKET = @LIBSOCKET@
+LIBSTDTHREAD = @LIBSTDTHREAD@
+LIBTHREAD = @LIBTHREAD@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_GETLOGIN = @LIB_GETLOGIN@
+LIB_GETRANDOM = @LIB_GETRANDOM@
+LIB_HARD_LOCALE = @LIB_HARD_LOCALE@
+LIB_MBRTOWC = @LIB_MBRTOWC@
+LIB_NANOSLEEP = @LIB_NANOSLEEP@
+LIB_NL_LANGINFO = @LIB_NL_LANGINFO@
+LIB_PTHREAD_SIGMASK = @LIB_PTHREAD_SIGMASK@
+LIB_SCHED_YIELD = @LIB_SCHED_YIELD@
+LIB_SELECT = @LIB_SELECT@
+LIB_SETLOCALE_NULL = @LIB_SETLOCALE_NULL@
+LIMITS_H = @LIMITS_H@
+LINGUAS = @LINGUAS@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LOCALCHARSET_TESTS_ENVIRONMENT = @LOCALCHARSET_TESTS_ENVIRONMENT@
+LOCALENAME_ENHANCE_LOCALE_FUNCS = @LOCALENAME_ENHANCE_LOCALE_FUNCS@
+LOCALE_FR = @LOCALE_FR@
+LOCALE_FR_UTF8 = @LOCALE_FR_UTF8@
+LOCALE_JA = @LOCALE_JA@
+LOCALE_ZH_CN = @LOCALE_ZH_CN@
+LTALLOCA = @LTALLOCA@
+LTLIBICONV = @LTLIBICONV@
+LTLIBINTL = @LTLIBINTL@
+LTLIBMULTITHREAD = @LTLIBMULTITHREAD@
+LTLIBOBJS = @LTLIBOBJS@
+LTLIBTHREAD = @LTLIBTHREAD@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANDIR_LAYOUT = @MANDIR_LAYOUT@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MAN_SUBDIRS = @MAN_SUBDIRS@
+MKDIR_P = @MKDIR_P@
+MSGFMT = @MSGFMT@
+MSGFMT_015 = @MSGFMT_015@
+MSGMERGE = @MSGMERGE@
+NEXT_AS_FIRST_DIRECTIVE_CTYPE_H = @NEXT_AS_FIRST_DIRECTIVE_CTYPE_H@
+NEXT_AS_FIRST_DIRECTIVE_DIRENT_H = @NEXT_AS_FIRST_DIRECTIVE_DIRENT_H@
+NEXT_AS_FIRST_DIRECTIVE_ERRNO_H = @NEXT_AS_FIRST_DIRECTIVE_ERRNO_H@
+NEXT_AS_FIRST_DIRECTIVE_FCNTL_H = @NEXT_AS_FIRST_DIRECTIVE_FCNTL_H@
+NEXT_AS_FIRST_DIRECTIVE_FLOAT_H = @NEXT_AS_FIRST_DIRECTIVE_FLOAT_H@
+NEXT_AS_FIRST_DIRECTIVE_FNMATCH_H = @NEXT_AS_FIRST_DIRECTIVE_FNMATCH_H@
+NEXT_AS_FIRST_DIRECTIVE_GETOPT_H = @NEXT_AS_FIRST_DIRECTIVE_GETOPT_H@
+NEXT_AS_FIRST_DIRECTIVE_GLOB_H = @NEXT_AS_FIRST_DIRECTIVE_GLOB_H@
+NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H = @NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H@
+NEXT_AS_FIRST_DIRECTIVE_LANGINFO_H = @NEXT_AS_FIRST_DIRECTIVE_LANGINFO_H@
+NEXT_AS_FIRST_DIRECTIVE_LIMITS_H = @NEXT_AS_FIRST_DIRECTIVE_LIMITS_H@
+NEXT_AS_FIRST_DIRECTIVE_LOCALE_H = @NEXT_AS_FIRST_DIRECTIVE_LOCALE_H@
+NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H = @NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H@
+NEXT_AS_FIRST_DIRECTIVE_STDARG_H = @NEXT_AS_FIRST_DIRECTIVE_STDARG_H@
+NEXT_AS_FIRST_DIRECTIVE_STDDEF_H = @NEXT_AS_FIRST_DIRECTIVE_STDDEF_H@
+NEXT_AS_FIRST_DIRECTIVE_STDINT_H = @NEXT_AS_FIRST_DIRECTIVE_STDINT_H@
+NEXT_AS_FIRST_DIRECTIVE_STDIO_H = @NEXT_AS_FIRST_DIRECTIVE_STDIO_H@
+NEXT_AS_FIRST_DIRECTIVE_STDLIB_H = @NEXT_AS_FIRST_DIRECTIVE_STDLIB_H@
+NEXT_AS_FIRST_DIRECTIVE_STRINGS_H = @NEXT_AS_FIRST_DIRECTIVE_STRINGS_H@
+NEXT_AS_FIRST_DIRECTIVE_STRING_H = @NEXT_AS_FIRST_DIRECTIVE_STRING_H@
+NEXT_AS_FIRST_DIRECTIVE_SYSEXITS_H = @NEXT_AS_FIRST_DIRECTIVE_SYSEXITS_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_FILE_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_FILE_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_IOCTL_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_IOCTL_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_RANDOM_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_RANDOM_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_SELECT_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_SELECT_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_SOCKET_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_SOCKET_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_TIME_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_TIME_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H@
+NEXT_AS_FIRST_DIRECTIVE_SYS_UIO_H = @NEXT_AS_FIRST_DIRECTIVE_SYS_UIO_H@
+NEXT_AS_FIRST_DIRECTIVE_TERMIOS_H = @NEXT_AS_FIRST_DIRECTIVE_TERMIOS_H@
+NEXT_AS_FIRST_DIRECTIVE_TIME_H = @NEXT_AS_FIRST_DIRECTIVE_TIME_H@
+NEXT_AS_FIRST_DIRECTIVE_UNISTD_H = @NEXT_AS_FIRST_DIRECTIVE_UNISTD_H@
+NEXT_AS_FIRST_DIRECTIVE_UTIME_H = @NEXT_AS_FIRST_DIRECTIVE_UTIME_H@
+NEXT_AS_FIRST_DIRECTIVE_WCHAR_H = @NEXT_AS_FIRST_DIRECTIVE_WCHAR_H@
+NEXT_AS_FIRST_DIRECTIVE_WCTYPE_H = @NEXT_AS_FIRST_DIRECTIVE_WCTYPE_H@
+NEXT_CTYPE_H = @NEXT_CTYPE_H@
+NEXT_DIRENT_H = @NEXT_DIRENT_H@
+NEXT_ERRNO_H = @NEXT_ERRNO_H@
+NEXT_FCNTL_H = @NEXT_FCNTL_H@
+NEXT_FLOAT_H = @NEXT_FLOAT_H@
+NEXT_FNMATCH_H = @NEXT_FNMATCH_H@
+NEXT_GETOPT_H = @NEXT_GETOPT_H@
+NEXT_GLOB_H = @NEXT_GLOB_H@
+NEXT_INTTYPES_H = @NEXT_INTTYPES_H@
+NEXT_LANGINFO_H = @NEXT_LANGINFO_H@
+NEXT_LIMITS_H = @NEXT_LIMITS_H@
+NEXT_LOCALE_H = @NEXT_LOCALE_H@
+NEXT_SIGNAL_H = @NEXT_SIGNAL_H@
+NEXT_STDARG_H = @NEXT_STDARG_H@
+NEXT_STDDEF_H = @NEXT_STDDEF_H@
+NEXT_STDINT_H = @NEXT_STDINT_H@
+NEXT_STDIO_H = @NEXT_STDIO_H@
+NEXT_STDLIB_H = @NEXT_STDLIB_H@
+NEXT_STRINGS_H = @NEXT_STRINGS_H@
+NEXT_STRING_H = @NEXT_STRING_H@
+NEXT_SYSEXITS_H = @NEXT_SYSEXITS_H@
+NEXT_SYS_FILE_H = @NEXT_SYS_FILE_H@
+NEXT_SYS_IOCTL_H = @NEXT_SYS_IOCTL_H@
+NEXT_SYS_RANDOM_H = @NEXT_SYS_RANDOM_H@
+NEXT_SYS_SELECT_H = @NEXT_SYS_SELECT_H@
+NEXT_SYS_SOCKET_H = @NEXT_SYS_SOCKET_H@
+NEXT_SYS_STAT_H = @NEXT_SYS_STAT_H@
+NEXT_SYS_TIME_H = @NEXT_SYS_TIME_H@
+NEXT_SYS_TYPES_H = @NEXT_SYS_TYPES_H@
+NEXT_SYS_UIO_H = @NEXT_SYS_UIO_H@
+NEXT_TERMIOS_H = @NEXT_TERMIOS_H@
+NEXT_TIME_H = @NEXT_TIME_H@
+NEXT_UNISTD_H = @NEXT_UNISTD_H@
+NEXT_UTIME_H = @NEXT_UTIME_H@
+NEXT_WCHAR_H = @NEXT_WCHAR_H@
+NEXT_WCTYPE_H = @NEXT_WCTYPE_H@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PO4A = @PO4A@
+POSUB = @POSUB@
+PRAGMA_COLUMNS = @PRAGMA_COLUMNS@
+PRAGMA_SYSTEM_HEADER = @PRAGMA_SYSTEM_HEADER@
+PRIPTR_PREFIX = @PRIPTR_PREFIX@
+PTHREAD_H_DEFINES_STRUCT_TIMESPEC = @PTHREAD_H_DEFINES_STRUCT_TIMESPEC@
+PTRDIFF_T_SUFFIX = @PTRDIFF_T_SUFFIX@
+RANLIB = @RANLIB@
+REPLACE_ACCESS = @REPLACE_ACCESS@
+REPLACE_ALIGNED_ALLOC = @REPLACE_ALIGNED_ALLOC@
+REPLACE_BTOWC = @REPLACE_BTOWC@
+REPLACE_CALLOC_FOR_CALLOC_GNU = @REPLACE_CALLOC_FOR_CALLOC_GNU@
+REPLACE_CALLOC_FOR_CALLOC_POSIX = @REPLACE_CALLOC_FOR_CALLOC_POSIX@
+REPLACE_CANONICALIZE_FILE_NAME = @REPLACE_CANONICALIZE_FILE_NAME@
+REPLACE_CHMOD = @REPLACE_CHMOD@
+REPLACE_CHOWN = @REPLACE_CHOWN@
+REPLACE_CLOSE = @REPLACE_CLOSE@
+REPLACE_CLOSEDIR = @REPLACE_CLOSEDIR@
+REPLACE_COPY_FILE_RANGE = @REPLACE_COPY_FILE_RANGE@
+REPLACE_CREAT = @REPLACE_CREAT@
+REPLACE_CTIME = @REPLACE_CTIME@
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+REPLACE_DPRINTF = @REPLACE_DPRINTF@
+REPLACE_DUP = @REPLACE_DUP@
+REPLACE_DUP2 = @REPLACE_DUP2@
+REPLACE_DUPLOCALE = @REPLACE_DUPLOCALE@
+REPLACE_EXECL = @REPLACE_EXECL@
+REPLACE_EXECLE = @REPLACE_EXECLE@
+REPLACE_EXECLP = @REPLACE_EXECLP@
+REPLACE_EXECV = @REPLACE_EXECV@
+REPLACE_EXECVE = @REPLACE_EXECVE@
+REPLACE_EXECVP = @REPLACE_EXECVP@
+REPLACE_EXECVPE = @REPLACE_EXECVPE@
+REPLACE_FACCESSAT = @REPLACE_FACCESSAT@
+REPLACE_FCHMODAT = @REPLACE_FCHMODAT@
+REPLACE_FCHOWNAT = @REPLACE_FCHOWNAT@
+REPLACE_FCLOSE = @REPLACE_FCLOSE@
+REPLACE_FCNTL = @REPLACE_FCNTL@
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+REPLACE_FDOPENDIR = @REPLACE_FDOPENDIR@
+REPLACE_FFLUSH = @REPLACE_FFLUSH@
+REPLACE_FFSLL = @REPLACE_FFSLL@
+REPLACE_FNMATCH = @REPLACE_FNMATCH@
+REPLACE_FOPEN = @REPLACE_FOPEN@
+REPLACE_FOPEN_FOR_FOPEN_GNU = @REPLACE_FOPEN_FOR_FOPEN_GNU@
+REPLACE_FPRINTF = @REPLACE_FPRINTF@
+REPLACE_FPURGE = @REPLACE_FPURGE@
+REPLACE_FREE = @REPLACE_FREE@
+REPLACE_FREELOCALE = @REPLACE_FREELOCALE@
+REPLACE_FREOPEN = @REPLACE_FREOPEN@
+REPLACE_FSEEK = @REPLACE_FSEEK@
+REPLACE_FSEEKO = @REPLACE_FSEEKO@
+REPLACE_FSTAT = @REPLACE_FSTAT@
+REPLACE_FSTATAT = @REPLACE_FSTATAT@
+REPLACE_FTELL = @REPLACE_FTELL@
+REPLACE_FTELLO = @REPLACE_FTELLO@
+REPLACE_FTRUNCATE = @REPLACE_FTRUNCATE@
+REPLACE_FUTIMENS = @REPLACE_FUTIMENS@
+REPLACE_GETCWD = @REPLACE_GETCWD@
+REPLACE_GETDELIM = @REPLACE_GETDELIM@
+REPLACE_GETDOMAINNAME = @REPLACE_GETDOMAINNAME@
+REPLACE_GETDTABLESIZE = @REPLACE_GETDTABLESIZE@
+REPLACE_GETGROUPS = @REPLACE_GETGROUPS@
+REPLACE_GETLINE = @REPLACE_GETLINE@
+REPLACE_GETLOGIN_R = @REPLACE_GETLOGIN_R@
+REPLACE_GETPAGESIZE = @REPLACE_GETPAGESIZE@
+REPLACE_GETPASS = @REPLACE_GETPASS@
+REPLACE_GETPASS_FOR_GETPASS_GNU = @REPLACE_GETPASS_FOR_GETPASS_GNU@
+REPLACE_GETRANDOM = @REPLACE_GETRANDOM@
+REPLACE_GETTIMEOFDAY = @REPLACE_GETTIMEOFDAY@
+REPLACE_GLOB = @REPLACE_GLOB@
+REPLACE_GLOB_PATTERN_P = @REPLACE_GLOB_PATTERN_P@
+REPLACE_GMTIME = @REPLACE_GMTIME@
+REPLACE_INITSTATE = @REPLACE_INITSTATE@
+REPLACE_IOCTL = @REPLACE_IOCTL@
+REPLACE_ISATTY = @REPLACE_ISATTY@
+REPLACE_ISWBLANK = @REPLACE_ISWBLANK@
+REPLACE_ISWCNTRL = @REPLACE_ISWCNTRL@
+REPLACE_ISWDIGIT = @REPLACE_ISWDIGIT@
+REPLACE_ISWXDIGIT = @REPLACE_ISWXDIGIT@
+REPLACE_ITOLD = @REPLACE_ITOLD@
+REPLACE_LCHOWN = @REPLACE_LCHOWN@
+REPLACE_LINK = @REPLACE_LINK@
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+REPLACE_LOCALTIME_R = @REPLACE_LOCALTIME_R@
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+REPLACE_LSTAT = @REPLACE_LSTAT@
+REPLACE_MALLOC_FOR_MALLOC_GNU = @REPLACE_MALLOC_FOR_MALLOC_GNU@
+REPLACE_MALLOC_FOR_MALLOC_POSIX = @REPLACE_MALLOC_FOR_MALLOC_POSIX@
+REPLACE_MBRLEN = @REPLACE_MBRLEN@
+REPLACE_MBRTOWC = @REPLACE_MBRTOWC@
+REPLACE_MBSINIT = @REPLACE_MBSINIT@
+REPLACE_MBSNRTOWCS = @REPLACE_MBSNRTOWCS@
+REPLACE_MBSRTOWCS = @REPLACE_MBSRTOWCS@
+REPLACE_MBSTATE_T = @REPLACE_MBSTATE_T@
+REPLACE_MBTOWC = @REPLACE_MBTOWC@
+REPLACE_MEMCHR = @REPLACE_MEMCHR@
+REPLACE_MEMMEM = @REPLACE_MEMMEM@
+REPLACE_MKDIR = @REPLACE_MKDIR@
+REPLACE_MKFIFO = @REPLACE_MKFIFO@
+REPLACE_MKFIFOAT = @REPLACE_MKFIFOAT@
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+REPLACE_MKNODAT = @REPLACE_MKNODAT@
+REPLACE_MKSTEMP = @REPLACE_MKSTEMP@
+REPLACE_MKTIME = @REPLACE_MKTIME@
+REPLACE_NANOSLEEP = @REPLACE_NANOSLEEP@
+REPLACE_NEWLOCALE = @REPLACE_NEWLOCALE@
+REPLACE_NL_LANGINFO = @REPLACE_NL_LANGINFO@
+REPLACE_NULL = @REPLACE_NULL@
+REPLACE_OBSTACK_PRINTF = @REPLACE_OBSTACK_PRINTF@
+REPLACE_OPEN = @REPLACE_OPEN@
+REPLACE_OPENAT = @REPLACE_OPENAT@
+REPLACE_OPENDIR = @REPLACE_OPENDIR@
+REPLACE_PERROR = @REPLACE_PERROR@
+REPLACE_POPEN = @REPLACE_POPEN@
+REPLACE_POSIX_MEMALIGN = @REPLACE_POSIX_MEMALIGN@
+REPLACE_PREAD = @REPLACE_PREAD@
+REPLACE_PRINTF = @REPLACE_PRINTF@
+REPLACE_PSELECT = @REPLACE_PSELECT@
+REPLACE_PTHREAD_SIGMASK = @REPLACE_PTHREAD_SIGMASK@
+REPLACE_PTSNAME = @REPLACE_PTSNAME@
+REPLACE_PTSNAME_R = @REPLACE_PTSNAME_R@
+REPLACE_PUTENV = @REPLACE_PUTENV@
+REPLACE_PWRITE = @REPLACE_PWRITE@
+REPLACE_QSORT_R = @REPLACE_QSORT_R@
+REPLACE_RAISE = @REPLACE_RAISE@
+REPLACE_RANDOM = @REPLACE_RANDOM@
+REPLACE_RANDOM_R = @REPLACE_RANDOM_R@
+REPLACE_READ = @REPLACE_READ@
+REPLACE_READLINK = @REPLACE_READLINK@
+REPLACE_READLINKAT = @REPLACE_READLINKAT@
+REPLACE_REALLOCARRAY = @REPLACE_REALLOCARRAY@
+REPLACE_REALLOC_FOR_REALLOC_GNU = @REPLACE_REALLOC_FOR_REALLOC_GNU@
+REPLACE_REALLOC_FOR_REALLOC_POSIX = @REPLACE_REALLOC_FOR_REALLOC_POSIX@
+REPLACE_REALPATH = @REPLACE_REALPATH@
+REPLACE_REMOVE = @REPLACE_REMOVE@
+REPLACE_RENAME = @REPLACE_RENAME@
+REPLACE_RENAMEAT = @REPLACE_RENAMEAT@
+REPLACE_RMDIR = @REPLACE_RMDIR@
+REPLACE_SELECT = @REPLACE_SELECT@
+REPLACE_SETENV = @REPLACE_SETENV@
+REPLACE_SETLOCALE = @REPLACE_SETLOCALE@
+REPLACE_SETSTATE = @REPLACE_SETSTATE@
+REPLACE_SLEEP = @REPLACE_SLEEP@
+REPLACE_SNPRINTF = @REPLACE_SNPRINTF@
+REPLACE_SPRINTF = @REPLACE_SPRINTF@
+REPLACE_STAT = @REPLACE_STAT@
+REPLACE_STDIO_READ_FUNCS = @REPLACE_STDIO_READ_FUNCS@
+REPLACE_STDIO_WRITE_FUNCS = @REPLACE_STDIO_WRITE_FUNCS@
+REPLACE_STPNCPY = @REPLACE_STPNCPY@
+REPLACE_STRCASESTR = @REPLACE_STRCASESTR@
+REPLACE_STRCHRNUL = @REPLACE_STRCHRNUL@
+REPLACE_STRDUP = @REPLACE_STRDUP@
+REPLACE_STRERROR = @REPLACE_STRERROR@
+REPLACE_STRERRORNAME_NP = @REPLACE_STRERRORNAME_NP@
+REPLACE_STRERROR_R = @REPLACE_STRERROR_R@
+REPLACE_STRFTIME = @REPLACE_STRFTIME@
+REPLACE_STRNCAT = @REPLACE_STRNCAT@
+REPLACE_STRNDUP = @REPLACE_STRNDUP@
+REPLACE_STRNLEN = @REPLACE_STRNLEN@
+REPLACE_STRSIGNAL = @REPLACE_STRSIGNAL@
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+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
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+
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+	      "$$@" $$unique; \
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+	      $$unique; \
+	  fi; \
+	fi
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
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+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
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+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
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+distclean: distclean-am
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+	-rm -f ./$(DEPDIR)/libmandb_la-db_ndbm.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_store.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_ver.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_xdbm.Plo
+	-rm -f Makefile
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+	distclean-tags
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+		-rm -f ./$(DEPDIR)/libmandb_la-db_btree.Plo
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+	-rm -f ./$(DEPDIR)/libmandb_la-db_gdbm.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_lookup.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_ndbm.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_store.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_ver.Plo
+	-rm -f ./$(DEPDIR)/libmandb_la-db_xdbm.Plo
+	-rm -f Makefile
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+
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+	mostlyclean-libtool
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+.MAKE: install-am install-strip
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+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+	clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/libdb/README b/libdb/README
new file mode 100644
index 0000000..b7735e2
--- /dev/null
+++ b/libdb/README
@@ -0,0 +1,6 @@
+This directory contains the database management routines required by the
+man-db package.
+
+* You may distribute under the terms of the GNU Library General Public
+* License as specified in the file docs/COPYING.LIB that comes with the man
+* distribution.
diff --git a/libdb/db_btree.c b/libdb/db_btree.c
new file mode 100644
index 0000000..54242c0
--- /dev/null
+++ b/libdb/db_btree.c
@@ -0,0 +1,293 @@
+/*
+ * db_btree.c: low level btree interface routines for man.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2002 Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug  8 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+/* below this line are routines only useful for the BTREE interface */
+#ifdef BTREE
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <sys/file.h> /* for flock() */
+#include <sys/types.h> /* for open() */
+#include <sys/stat.h>
+
+#include "gl_hash_set.h"
+#include "gl_xset.h"
+#include "stat-time.h"
+#include "timespec.h"
+#include "xalloc.h"
+#include "xstrndup.h"
+
+#include "manconfig.h"
+
+#include "debug.h"
+#include "error.h"
+#include "glcontainers.h"
+
+#include "mydbm.h"
+#include "db_storage.h"
+
+gl_set_t loop_check;
+
+/* the Berkeley database libraries do nothing to arbitrate between concurrent
+   database accesses, so we do a simple flock(). If the db is opened in
+   anything but O_RDONLY mode, an exclusive lock is enabled. Otherwise, the
+   lock is shared. A file cannot have both locks at once, and the non
+   blocking method is used ": Try again". This adopts GNU dbm's approach. */
+
+/* release the lock and close the database */
+void man_btree_free (man_btree_wrapper wrap)
+{
+	if (!wrap)
+		return;
+
+	free (wrap->name);
+	if (wrap->file) {
+		(void) flock ((wrap->file->fd) (wrap->file), LOCK_UN);
+		(wrap->file->close) (wrap->file);
+	}
+	free (wrap->mtime);
+	free (wrap);
+}
+
+man_btree_wrapper man_btree_new (const char *name)
+{
+	man_btree_wrapper wrap;
+
+	wrap = xmalloc (sizeof *wrap);
+	wrap->name = xstrdup (name);
+	wrap->file = NULL;
+	wrap->mtime = NULL;
+
+	return wrap;
+}
+
+/* open a btree type database, with file locking. */
+bool man_btree_open (man_btree_wrapper wrap, int flags, int mode)
+{
+	BTREEINFO b;
+	int lock_op;
+	int lock_failed;
+
+	b.flags = 0;		/* do not allow any duplicate keys */
+
+	b.cachesize = 0;	/* default size */
+	b.maxkeypage = 0;	/* default */
+	b.minkeypage = 0;	/* default */
+	b.psize = 0;		/* default page size (2048?) */
+	b.compare = NULL;	/* builtin compare() function */
+	b.prefix = NULL;	/* builtin function */
+	b.lorder = 0;		/* byte order of host */
+
+	if (flags & ~O_RDONLY) {
+		/* flags includes O_RDWR or O_WRONLY, need an exclusive lock */
+		lock_op = LOCK_EX | LOCK_NB;
+	} else {
+		lock_op = LOCK_SH | LOCK_NB;
+	}
+
+	if (!(flags & O_CREAT)) {
+		/* Berkeley DB thinks that a zero-length file means that
+		 * somebody else is writing it, and sleeps for a few
+		 * seconds to give the writer a chance. All very well, but
+		 * the common case is that the database is just zero-length
+		 * because mandb was interrupted or ran out of disk space or
+		 * something like that - so we check for this case by hand
+		 * and ignore the database if it's zero-length.
+		 */
+		struct stat iszero;
+		if (stat (wrap->name, &iszero) < 0)
+			return false;
+		if (iszero.st_size == 0) {
+			errno = EINVAL;
+			return false;
+		}
+	}
+
+	if (flags & O_TRUNC) {
+		/* opening the db is destructive, need to lock first */
+		int fd;
+
+		wrap->file = NULL;
+		lock_failed = 1;
+		fd = open (wrap->name, flags & ~O_TRUNC, mode);
+		if (fd != -1) {
+			if (!(lock_failed = flock (fd, lock_op)))
+				wrap->file = dbopen (wrap->name, flags, mode,
+						     DB_BTREE, &b);
+			close (fd);
+		}
+	} else {
+		wrap->file = dbopen (wrap->name, flags, mode, DB_BTREE, &b);
+		if (wrap->file)
+			lock_failed = flock ((wrap->file->fd) (wrap->file),
+					     lock_op);
+	}
+
+	if (!wrap->file)
+		return false;
+
+	if (lock_failed) {
+		gripe_lock (wrap->name);
+		(wrap->file->close) (wrap->file);
+		return false;
+	}
+
+	return true;
+}
+
+/* do a replace when we have the duplicate flag set on the database -
+   we must do a del and insert, as a direct insert will not wipe out the
+   old entry */
+int man_btree_replace (man_btree_wrapper wrap, datum key, datum cont)
+{
+	return (wrap->file->put) (wrap->file, (DBT *) &key, (DBT *) &cont, 0);
+}
+
+int man_btree_insert (man_btree_wrapper wrap, datum key, datum cont)
+{
+	return (wrap->file->put) (wrap->file, (DBT *) &key, (DBT *) &cont,
+				  R_NOOVERWRITE);
+}
+
+/* generic fetch routine for the btree database */
+datum man_btree_fetch (man_btree_wrapper wrap, datum key)
+{
+	datum data;
+
+	memset (&data, 0, sizeof data);
+
+	if ((wrap->file->get) (wrap->file, (DBT *) &key, (DBT *) &data, 0)) {
+		memset (&data, 0, sizeof data);
+		return data;
+	}
+
+	return copy_datum (data);
+}
+
+/* return 1 if the key exists, 0 otherwise */
+int man_btree_exists (man_btree_wrapper wrap, datum key)
+{
+	datum data;
+	return ((wrap->file->get) (wrap->file, (DBT *) &key, (DBT *) &data,
+				   0) ? 0 : 1);
+}
+
+/* initiate a sequential access */
+static datum man_btree_findkey (man_btree_wrapper wrap, u_int flags)
+{
+	datum key, data;
+	char *loop_check_key;
+
+	memset (&key, 0, sizeof key);
+	memset (&data, 0, sizeof data);
+
+	if (flags == R_FIRST) {
+		if (loop_check) {
+			gl_set_free (loop_check);
+			loop_check = NULL;
+		}
+	}
+	if (!loop_check)
+		loop_check = new_string_set (GL_HASH_SET);
+
+	if (((wrap->file->seq) (wrap->file, (DBT *) &key, (DBT *) &data,
+				flags))) {
+		memset (&key, 0, sizeof key);
+		return key;
+	}
+
+	loop_check_key = xstrndup (MYDBM_DPTR (key), MYDBM_DSIZE (key));
+	if (gl_set_search (loop_check, loop_check_key)) {
+		/* We've seen this key already, which is broken. Return NULL
+		 * so the caller doesn't go round in circles.
+		 */
+		debug ("Corrupt database! Already seen %*s. "
+		       "Attempting to recover ...\n",
+		       (int) MYDBM_DSIZE (key), MYDBM_DPTR (key));
+		memset (&key, 0, sizeof key);
+		free (loop_check_key);
+		return key;
+	}
+
+	gl_set_add (loop_check, loop_check_key);
+
+	return copy_datum (key);
+}
+
+/* return the first key in the db */
+datum man_btree_firstkey (man_btree_wrapper wrap)
+{
+	return man_btree_findkey (wrap, R_FIRST);
+}
+
+/* return the next key in the db. NB. This routine only works if the cursor
+   has been previously set by man_btree_firstkey() since it was last opened. So
+   if we close/reopen a db mid search, we have to manually set up the
+   cursor again. */
+datum man_btree_nextkey (man_btree_wrapper wrap)
+{
+	return man_btree_findkey (wrap, R_NEXT);
+}
+
+/* compound nextkey routine, initialising key and content */
+int man_btree_nextkeydata (man_btree_wrapper wrap, datum *key, datum *cont)
+{
+	int status;
+
+	if ((status = (wrap->file->seq) (wrap->file, (DBT *) key, (DBT *) cont,
+					 R_NEXT)) != 0)
+		return status;
+
+	*key = copy_datum (*key);
+	*cont = copy_datum (*cont);
+
+	return 0;
+}
+
+struct timespec man_btree_get_time (man_btree_wrapper wrap)
+{
+	struct stat st;
+
+	if (!wrap->mtime) {
+		wrap->mtime = XMALLOC (struct timespec);
+		if (fstat ((wrap->file->fd) (wrap->file), &st) < 0) {
+			wrap->mtime->tv_sec = -1;
+			wrap->mtime->tv_nsec = -1;
+		} else
+			*wrap->mtime = get_stat_mtime (&st);
+	}
+
+	return *wrap->mtime;
+}
+
+#endif /* BTREE */
diff --git a/libdb/db_delete.c b/libdb/db_delete.c
new file mode 100644
index 0000000..6d8870f
--- /dev/null
+++ b/libdb/db_delete.c
@@ -0,0 +1,146 @@
+/*
+ * db_delete.c: dbdelete(), database delete routine.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2001, 2002 Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug  8 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "error.h"
+#include "gl_list.h"
+#include "xalloc.h"
+
+#include "gettext.h"
+#define _(String) gettext (String)
+
+#include "manconfig.h"
+
+#include "appendstr.h"
+#include "debug.h"
+#include "filenames.h"
+#include "glcontainers.h"
+
+#include "mydbm.h"
+#include "db_storage.h"
+
+/* Delete an entry for a page.
+   Again, 3 possibilities:
+
+   1) page is singular reference, just delete it :)
+   2) page has 2+ companions. Delete page and alter multi entry to not
+      point to it anymore.
+   3) page has 1 companion. Could do as (2), but we'd waste an entry in
+      the db. Should delete page, extract friend and reinsert as singular,
+      overwriting the old multi entry.
+*/
+
+#define NO_ENTRY	1;
+
+int dbdelete (MYDBM_FILE dbf, const char *name, struct mandata *info)
+{
+	datum key, cont;
+
+	memset (&key, 0, sizeof key);
+	memset (&cont, 0, sizeof cont);
+
+	/* get entry for info */
+
+	debug ("Attempting delete of %s(%s) entry.\n", name, info->ext);
+
+	MYDBM_SET (key, name_to_key (name));
+	cont = MYDBM_FETCH (dbf, key);
+
+	if (!MYDBM_DPTR (cont)) {			/* 0 entries */
+		MYDBM_FREE_DPTR (key);
+		return NO_ENTRY;
+	} else if (*MYDBM_DPTR (cont) != '\t') {	/* 1 entry */
+		MYDBM_DELETE (dbf, key);
+		MYDBM_FREE_DPTR (cont);
+	} else {					/* 2+ entries */
+		gl_list_t refs;
+		struct name_ext this_ref, *ref;
+		size_t this_index;
+		char *multi_content = NULL;
+		datum multi_key;
+
+		/* Extract all of the extensions associated with
+		   this key */
+
+		refs = list_extensions (MYDBM_DPTR (cont) + 1);
+
+		this_ref.name = name;
+		this_ref.ext = info->ext;
+		this_index = gl_list_indexof (refs, &this_ref);
+
+		if (this_index == (size_t) -1) {
+			gl_list_free (refs);
+			MYDBM_FREE_DPTR (cont);
+			MYDBM_FREE_DPTR (key);
+			return NO_ENTRY;
+		}
+
+		multi_key = make_multi_key (name, info->ext);
+		if (!MYDBM_EXISTS (dbf, multi_key)) {
+			error (0, 0,
+			       _( "multi key %s does not exist"),
+			       MYDBM_DPTR (multi_key));
+			gripe_corrupt_data (dbf);
+		}
+		MYDBM_DELETE (dbf, multi_key);
+		MYDBM_FREE_DPTR (multi_key);
+		gl_list_remove_at (refs, this_index);
+
+		/* If all manual pages with this name have been deleted,
+		   we'll have to remove the key too. */
+
+		if (!gl_list_size (refs)) {
+			gl_list_free (refs);
+			MYDBM_FREE_DPTR (cont);
+			MYDBM_DELETE (dbf, key);
+			MYDBM_FREE_DPTR (key);
+			return 0;
+		}
+
+		/* create our new multi content */
+		multi_content = xstrdup ("");
+		GL_LIST_FOREACH (refs, ref)
+			multi_content = appendstr (multi_content,
+						   "\t", ref->name,
+						   "\t", ref->ext,
+						   (void *) 0);
+
+		MYDBM_FREE_DPTR (cont);
+		MYDBM_SET (cont, multi_content);
+		if (MYDBM_REPLACE (dbf, key, cont))
+			gripe_replace_key (dbf, MYDBM_DPTR (key));
+
+		gl_list_free (refs);
+	}
+
+	MYDBM_FREE_DPTR (key);
+	return 0;
+}
diff --git a/libdb/db_gdbm.c b/libdb/db_gdbm.c
new file mode 100644
index 0000000..99dbcfe
--- /dev/null
+++ b/libdb/db_gdbm.c
@@ -0,0 +1,173 @@
+/*
+ * db_gdbm.c: low level gdbm interface routines for man.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug  8 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#ifdef GDBM
+
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <setjmp.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "stat-time.h"
+#include "timespec.h"
+#include "xalloc.h"
+
+#include "manconfig.h"
+
+#include "cleanup.h"
+#include "debug.h"
+
+#include "db_xdbm.h"
+#include "mydbm.h"
+
+/* setjmp/longjmp handling to defend against _gdbm_fatal exiting under our
+ * feet.  Not thread-safe, but there is no plan for man-db to ever use
+ * threads.
+ */
+static jmp_buf open_env;
+static bool opening;
+
+/* Mimic _gdbm_fatal's error output, but handle errors during open more
+ * gracefully than exiting.
+ */
+static void trap_error (const char *val)
+{
+	if (opening) {
+		debug ("gdbm error: %s\n", val);
+		longjmp (open_env, 1);
+	} else
+		fprintf (stderr, "gdbm fatal: %s\n", val);
+}
+
+man_gdbm_wrapper man_gdbm_new (const char *name)
+{
+	man_gdbm_wrapper wrap;
+
+	wrap = xmalloc (sizeof *wrap);
+	wrap->name = xstrdup (name);
+	wrap->file = NULL;
+	wrap->mtime = NULL;
+
+	return wrap;
+}
+
+bool man_gdbm_open_wrapper (man_gdbm_wrapper wrap, int flags)
+{
+	datum key, content;
+
+	opening = true;
+	if (setjmp (open_env))
+		return false;
+	wrap->file = gdbm_open (wrap->name, BLK_SIZE, flags, DBMODE,
+				trap_error);
+	if (!wrap->file)
+		return false;
+
+	if ((flags & ~GDBM_FAST) != GDBM_NEWDB) {
+		/* While the setjmp/longjmp guard is in effect, make sure we
+		 * can read from the database at all.
+		 */
+		memset (&key, 0, sizeof key);
+		MYDBM_SET (key, xstrdup (VER_KEY));
+		content = MYDBM_FETCH (wrap, key);
+		MYDBM_FREE_DPTR (key);
+		MYDBM_FREE_DPTR (content);
+	}
+
+	opening = false;
+
+	return true;
+}
+
+static datum unsorted_firstkey (man_gdbm_wrapper wrap)
+{
+	return gdbm_firstkey (wrap->file);
+}
+
+static datum unsorted_nextkey (man_gdbm_wrapper wrap, datum key)
+{
+	return gdbm_nextkey (wrap->file, key);
+}
+
+datum man_gdbm_firstkey (man_gdbm_wrapper wrap)
+{
+	return man_xdbm_firstkey (wrap, unsorted_firstkey, unsorted_nextkey);
+}
+
+datum man_gdbm_nextkey (man_gdbm_wrapper wrap, datum key)
+{
+	return man_xdbm_nextkey (wrap, key);
+}
+
+struct timespec man_gdbm_get_time (man_gdbm_wrapper wrap)
+{
+	struct stat st;
+
+	if (!wrap->mtime) {
+		wrap->mtime = XMALLOC (struct timespec);
+		if (fstat (gdbm_fdesc (wrap->file), &st) < 0) {
+			wrap->mtime->tv_sec = -1;
+			wrap->mtime->tv_nsec = -1;
+		} else
+			*wrap->mtime = get_stat_mtime (&st);
+	}
+
+	return *wrap->mtime;
+}
+
+static void raw_close (man_gdbm_wrapper wrap)
+{
+	if (wrap->file)
+		gdbm_close (wrap->file);
+}
+
+void man_gdbm_free (man_gdbm_wrapper wrap)
+{
+	man_xdbm_free (wrap, raw_close);
+}
+
+#ifndef HAVE_GDBM_EXISTS
+
+int gdbm_exists (GDBM_FILE file, datum key)
+{
+	char *memory;
+
+	memory = MYDBM_DPTR (gdbm_fetch (file, key));
+	if (memory) {
+		free (memory);
+		return 1;
+	}
+
+	return 0;
+}
+
+#endif /* !HAVE_GDBM_EXISTS */
+
+#endif /* GDBM */
diff --git a/libdb/db_lookup.c b/libdb/db_lookup.c
new file mode 100644
index 0000000..b43269a
--- /dev/null
+++ b/libdb/db_lookup.c
@@ -0,0 +1,513 @@
+/*
+ * db_lookup.c: low level database interface routines for man.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008, 2009, 2012
+ *               Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug  8 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "attribute.h"
+#include "error.h"
+#include "fnmatch.h"
+#include "gl_array_list.h"
+#include "gl_xlist.h"
+#include "regex.h"
+#include "xalloc.h"
+#include "xvasprintf.h"
+
+#include "gettext.h"
+#define _(String) gettext (String)
+
+#include "manconfig.h"
+
+#include "debug.h"
+#include "fatal.h"
+#include "filenames.h"
+#include "glcontainers.h"
+#include "wordfnmatch.h"
+#include "xregcomp.h"
+
+#include "mydbm.h"
+#include "db_storage.h"
+
+/* If using ndbm or BTREE, copy the static storage before doing anything
+ * interesting with it. If using gdbm, firstkey and nextkey need to copy the
+ * storage because our ordered wrappers keep an effectively static copy.
+ */
+datum copy_datum (datum dat)
+{
+	if (MYDBM_DPTR (dat)) {
+		MYDBM_SET_DPTR (dat, memcpy (xmalloc (MYDBM_DSIZE (dat) + 1),
+						      MYDBM_DPTR (dat),
+						      MYDBM_DSIZE (dat)));
+		MYDBM_DPTR (dat)[MYDBM_DSIZE (dat)] = '\0';
+	}
+	return dat;
+}
+
+/* gdbm does locking itself. */
+#if defined(NDBM) || defined(BTREE)
+void gripe_lock (const char *filename)
+{
+	error (0, errno, _("can't lock index cache %s"), filename);
+}
+#endif /* NDBM || BTREE */
+
+/* issue fatal message, then exit */
+_Noreturn void gripe_corrupt_data (MYDBM_FILE dbf)
+{
+	fatal (0, _("index cache %s corrupt"), dbf->name);
+}
+
+/* deal with situation where we cannot replace a key */
+_Noreturn void gripe_replace_key (MYDBM_FILE dbf, const char *data)
+{
+	error (0, 0, _("cannot replace key %s"), data);
+	gripe_corrupt_data (dbf);
+}
+
+static char *copy_if_set (const char *str)
+{
+	if (STREQ (str, "-"))
+		return NULL;
+	else
+		return xstrdup (str);
+}
+
+const char * ATTRIBUTE_CONST dash_if_unset (const char *str)
+{
+	if (str)
+		return str;
+	else
+		return "-";
+}
+
+/* Just print out what would be stored in the db */
+void dbprintf (const struct mandata *info)
+{
+	debug ("name:      %s\n"
+	       "sec. ext:  %s\n"
+	       "section:   %s\n"
+	       "comp. ext: %s\n"
+	       "id:        %c\n"
+	       "mtime:     %ld.%09ld\n"
+	       "pointer:   %s\n"
+	       "filter:    %s\n"
+	       "whatis:    %s\n\n",
+	       dash_if_unset (info->name),
+	       info->ext, info->sec, info->comp,
+	       info->id, (long) info->mtime.tv_sec, (long) info->mtime.tv_nsec,
+	       info->pointer, info->filter, info->whatis);
+}
+
+/* Form a multi-style key from page and extension info. The page should
+ * *not* be name_to_key()'d - that should only happen to the parent.
+ */
+datum make_multi_key (const char *page, const char *ext)
+{
+	datum key;
+	char *value;
+
+	value = xasprintf ("%s\t%s", page, ext);
+	assert (value);
+	memset (&key, 0, sizeof key);
+	MYDBM_SET (key, value);
+	return key;
+}
+
+/* Get the key that should be used for a given name. The caller is
+ * responsible for freeing the return value.
+ */
+char *name_to_key (const char *name)
+{
+	char *low, *p;
+
+	p = low = xmalloc (strlen (name) + 1);
+	while (*name)
+		*p++ = CTYPE (tolower, *name++);
+	*p = *name;
+	return low;
+}
+
+/* return char ptr array to the data's fields */
+static char **split_data (MYDBM_FILE dbf, char *content, char *start[])
+{
+        int count;
+
+	/* initialise pointers to first N-1 fields */
+	for (count = 0; count < FIELDS - 1 ; count++) {
+		start[count] = strsep (&content, "\t");
+		if (!start[count]) {
+			error (0, 0,
+			       ngettext ("only %d field in content",
+					 "only %d fields in content", count),
+			       count);
+			gripe_corrupt_data (dbf);
+		}
+	}
+
+	/* initialise pointer to Nth field (whatis) */
+	start[FIELDS - 1] = content;
+	if (!start[FIELDS - 1]) {
+		error (0, 0,
+		       ngettext ("only %d field in content",
+				 "only %d fields in content", FIELDS - 1),
+		       FIELDS - 1);
+		gripe_corrupt_data (dbf);
+	}
+
+	return start;
+}
+
+/* Parse the db-returned data and put it into a mandata format */
+struct mandata *split_content (MYDBM_FILE dbf, char *cont_ptr)
+{
+	struct mandata *info;
+	char *start[FIELDS];
+	char **data;
+
+	data = split_data (dbf, cont_ptr, start);
+
+	info = XZALLOC (struct mandata);
+	info->name = copy_if_set (*(data++));
+	info->ext = xstrdup (*(data++));
+	info->sec = xstrdup (*(data++));
+	info->mtime.tv_sec = (time_t) atol (*(data++));
+	info->mtime.tv_nsec = atol (*(data++));
+	info->id = **(data++);				/* single char id */
+	info->pointer = xstrdup (*(data++));
+	info->filter = xstrdup (*(data++));
+	info->comp = xstrdup (*(data++));
+	info->whatis = xstrdup (*(data));
+	return info;
+}
+
+bool ATTRIBUTE_PURE name_ext_equals (const void *elt1, const void *elt2)
+{
+	const struct name_ext *ref1 = elt1, *ref2 = elt2;
+	return STREQ (ref1->name, ref2->name) && STREQ (ref1->ext, ref2->ext);
+}
+
+int ATTRIBUTE_PURE name_ext_compare (const void *elt1, const void *elt2)
+{
+	const struct name_ext *ref1 = elt1, *ref2 = elt2;
+	int name_cmp = strcmp (ref1->name, ref2->name);
+	if (name_cmp)
+		return name_cmp;
+	return strcmp (ref1->ext, ref2->ext);
+}
+
+/* Extract all of the names/extensions associated with this key. Each case
+ * variant of a name will be returned separately.
+ *
+ * This returns a newly-allocated list of struct name_ext, which the caller
+ * is expected to free.
+ */
+gl_list_t list_extensions (char *data)
+{
+	gl_list_t list = gl_list_create_empty (GL_ARRAY_LIST, name_ext_equals,
+					       NULL, plain_free, true);
+	char *name;
+
+	while ((name = strsep (&data, "\t")) != NULL) {
+		char *ext;
+		struct name_ext *name_ext;
+
+		ext = strsep (&data, "\t");
+		if (!ext)
+			break;
+
+		name_ext = XMALLOC (struct name_ext);
+		/* Don't copy these; they will point into the given string. */
+		name_ext->name = name;
+		name_ext->ext = ext;
+		gl_sortedlist_add (list, name_ext_compare, name_ext);
+	}
+
+	debug ("found %zu names/extensions\n", gl_list_size (list));
+	return list;
+}
+
+/* These should be bitwise-ored together. */
+#define ALL	    0
+#define	EXACT	    1
+#define MATCH_CASE  2
+
+/*
+ There are three possibilities on lookup:
+
+ 1) No data exists, lookup will fail, zero-length list will be returned.
+ 2) One data item exists. Item is returned as first in list of structures.
+ 3) Many items exist. They are all returned, in a multiple structure list.
+ */
+static gl_list_t dblookup (MYDBM_FILE dbf, const char *page,
+			   const char *section, int flags)
+{
+	gl_list_t infos;
+	struct mandata *info = NULL;
+	datum key, cont;
+
+	infos = gl_list_create_empty (GL_ARRAY_LIST, NULL, NULL,
+				      (gl_listelement_dispose_fn)
+				      free_mandata_struct,
+				      true);
+
+	memset (&key, 0, sizeof key);
+	memset (&cont, 0, sizeof cont);
+
+	MYDBM_SET (key, name_to_key (page));
+	cont = MYDBM_FETCH (dbf, key);
+	MYDBM_FREE_DPTR (key);
+
+	if (MYDBM_DPTR (cont) == NULL)		/* No entries at all */
+		;
+	else if (*MYDBM_DPTR (cont) != '\t') {	/* Just one entry */
+		bool matches = false;
+
+		info = split_content (dbf, MYDBM_DPTR (cont));
+		if (!info->name)
+			info->name = xstrdup (page);
+		if (!(flags & MATCH_CASE) || STREQ (info->name, page)) {
+			if (section == NULL)
+				matches = true;
+			else if (flags & EXACT) {
+				if (STREQ (section, info->ext))
+					matches = true;
+			} else {
+				if (STRNEQ (section, info->ext,
+					    strlen (section)))
+					matches = true;
+			}
+		}
+		if (matches)
+			gl_list_add_last (infos, info);
+		else
+			free_mandata_struct (info);
+	} else {				/* Multiple entries */
+		gl_list_t refs;
+		struct name_ext *ref;
+
+		/* Extract all of the case-variant-names/extensions
+		 * associated with this key.
+		 */
+
+		refs = list_extensions (MYDBM_DPTR (cont) + 1);
+
+		/* Make the multi keys and look them up */
+
+		GL_LIST_FOREACH (refs, ref) {
+			datum multi_cont;
+
+			memset (&multi_cont, 0, sizeof multi_cont);
+
+			/* Decide whether this part of a multi key is
+			 * suitable.
+			 */
+
+			if ((flags & MATCH_CASE) && !STREQ (ref->name, page))
+				continue;
+
+			if (section != NULL) {
+				if (flags & EXACT) {
+					if (!STREQ (section, ref->ext))
+						continue;
+				} else {
+					if (!STRNEQ (section, ref->ext,
+						     strlen (section)))
+						continue;
+				}
+			}
+
+			/* So the key is suitable ... */
+			key = make_multi_key (ref->name, ref->ext);
+			debug ("multi key lookup (%s)\n", MYDBM_DPTR (key));
+			multi_cont = MYDBM_FETCH (dbf, key);
+			if (MYDBM_DPTR (multi_cont) == NULL) {
+				error (0, 0, _("bad fetch on multi key %s"),
+				       MYDBM_DPTR (key));
+				gripe_corrupt_data (dbf);
+			}
+			MYDBM_FREE_DPTR (key);
+
+			/* Allocate info struct and add it to the list. */
+			info = split_content (dbf, MYDBM_DPTR (multi_cont));
+			if (!info->name)
+				info->name = xstrdup (ref->name);
+			gl_list_add_last (infos, info);
+		}
+
+		gl_list_free (refs);
+	}
+	MYDBM_FREE_DPTR (cont);
+
+	return infos;
+}
+
+gl_list_t dblookup_all (MYDBM_FILE dbf, const char *page,
+			const char *section, bool match_case)
+{
+	return dblookup (dbf, page, section,
+			 ALL | (match_case ? MATCH_CASE : 0));
+}
+
+struct mandata *dblookup_exact (MYDBM_FILE dbf, const char *page,
+				const char *section, bool match_case)
+{
+	gl_list_t infos = dblookup (dbf, page, section,
+				    EXACT | (match_case ? MATCH_CASE : 0));
+	struct mandata *info = NULL;
+
+	if (gl_list_size (infos)) {
+		/* Return the first item and free the rest of the list. */
+		info = (struct mandata *) gl_list_get_at (infos, 0);
+		gl_list_set_at (infos, 0, NULL);	/* steal memory */
+	}
+	gl_list_free (infos);
+	return info;
+}
+
+gl_list_t dblookup_pattern (MYDBM_FILE dbf, const char *pattern,
+			    const char *section, bool match_case,
+			    bool pattern_regex, bool try_descriptions)
+{
+	gl_list_t infos;
+	datum key, cont;
+	regex_t preg;
+
+	infos = gl_list_create_empty (GL_ARRAY_LIST, NULL, NULL,
+				      (gl_listelement_dispose_fn)
+				      free_mandata_struct,
+				      true);
+
+	if (pattern_regex)
+		xregcomp (&preg, pattern,
+			  REG_EXTENDED | REG_NOSUB |
+			  (match_case ? 0 : REG_ICASE));
+
+#ifndef BTREE
+	datum nextkey;
+
+	key = MYDBM_FIRSTKEY (dbf);
+	while (MYDBM_DPTR (key)) {
+		cont = MYDBM_FETCH (dbf, key);
+#else /* BTREE */
+	int end;
+
+	end = man_btree_nextkeydata (dbf, &key, &cont);
+	while (!end) {
+#endif /* !BTREE */
+		struct mandata *info = NULL;
+		char *tab;
+		bool got_match;
+
+		if (!MYDBM_DPTR (cont))
+		{
+			debug ("key was %s\n", MYDBM_DPTR (key));
+			fatal (0,
+			       _("Database %s corrupted; rebuild with "
+				 "mandb --create"),
+			       dbf->name);
+		}
+
+		if (*MYDBM_DPTR (key) == '$')
+			goto nextpage;
+
+#pragma GCC diagnostic push
+#if GNUC_PREREQ(10,0)
+#  pragma GCC diagnostic ignored "-Wanalyzer-use-after-free"
+#endif
+		if (*MYDBM_DPTR (cont) == '\t')
+			goto nextpage;
+#pragma GCC diagnostic pop
+
+		/* a real page */
+
+		info = split_content (dbf, MYDBM_DPTR (cont));
+
+		/* If there's a section given, does it match either the
+		 * section or extension of this page?
+		 */
+		if (section &&
+		    (!STREQ (section, info->sec) &&
+		     !STREQ (section, info->ext)))
+			goto nextpage;
+
+		tab = strrchr (MYDBM_DPTR (key), '\t');
+		if (tab)
+			 *tab = '\0';
+
+		if (!info->name)
+			info->name = xstrdup (MYDBM_DPTR (key));
+
+		if (pattern_regex)
+			got_match = (regexec (&preg, info->name,
+					      0, NULL, 0) == 0);
+		else
+			got_match = fnmatch (pattern, info->name,
+					     match_case ? 0
+							: FNM_CASEFOLD) == 0;
+		if (try_descriptions && !got_match && info->whatis) {
+			if (pattern_regex)
+				got_match = (regexec (&preg, info->whatis,
+						      0, NULL, 0) == 0);
+			else
+				got_match = word_fnmatch (pattern,
+							  info->whatis);
+		}
+		if (!got_match)
+			goto nextpage_tab;
+
+		gl_list_add_last (infos, info);
+		info = NULL; /* avoid freeing later */
+
+nextpage_tab:
+		if (tab)
+			*tab = '\t';
+nextpage:
+#ifndef BTREE
+		nextkey = MYDBM_NEXTKEY (dbf, key);
+		MYDBM_FREE_DPTR (cont);
+		MYDBM_FREE_DPTR (key);
+		key = nextkey;
+#else /* BTREE */
+		MYDBM_FREE_DPTR (cont);
+		MYDBM_FREE_DPTR (key);
+		end = man_btree_nextkeydata (dbf, &key, &cont);
+#endif /* !BTREE */
+		free_mandata_struct (info);
+	}
+
+	if (pattern_regex)
+		regfree (&preg);
+
+	return infos;
+}
diff --git a/libdb/db_ndbm.c b/libdb/db_ndbm.c
new file mode 100644
index 0000000..b447e65
--- /dev/null
+++ b/libdb/db_ndbm.c
@@ -0,0 +1,160 @@
+/*
+ * db_ndbm.c: low level ndbm interface routines for man.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug  8 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#ifdef NDBM
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <sys/file.h> /* for flock() */
+#include <sys/types.h> /* for open() */
+#include <sys/stat.h>
+
+#include "attribute.h"
+#include "stat-time.h"
+#include "timespec.h"
+#include "xalloc.h"
+#include "xvasprintf.h"
+
+#include "manconfig.h"
+
+#include "db_storage.h"
+#include "db_xdbm.h"
+#include "mydbm.h"
+
+/* release the lock and close the database */
+static void raw_close (man_ndbm_wrapper wrap)
+{
+	if (wrap->file) {
+		flock (dbm_dirfno (wrap->file), LOCK_UN);
+		dbm_close (wrap->file);
+	}
+}
+
+void man_ndbm_free (man_ndbm_wrapper wrap)
+{
+	man_xdbm_free (wrap, raw_close);
+}
+
+man_ndbm_wrapper man_ndbm_new (const char *name)
+{
+	man_ndbm_wrapper wrap;
+
+	wrap = xmalloc (sizeof *wrap);
+	wrap->name = xstrdup (name);
+	wrap->file = NULL;
+	wrap->mtime = NULL;
+
+	return wrap;
+}
+
+/* open a ndbm type database, with file locking. */
+bool man_ndbm_open (man_ndbm_wrapper wrap, int flags, int mode)
+{
+	int lock_op;
+	int lock_failed;
+
+	if (flags & ~O_RDONLY) {
+		/* flags includes O_RDWR or O_WRONLY, need an exclusive lock */
+		lock_op = LOCK_EX | LOCK_NB;
+	} else {
+		lock_op = LOCK_SH | LOCK_NB;
+	}
+
+	if (flags & O_TRUNC) {
+		/* opening the db is destructive, need to lock first */
+		char *dir_fname;
+		int dir_fd;
+
+		wrap->file = NULL;
+		lock_failed = 1;
+		dir_fname = xasprintf ("%s.dir", wrap->name);
+		dir_fd = open (dir_fname, flags & ~O_TRUNC, mode);
+		free (dir_fname);
+		if (dir_fd != -1) {
+			if (!(lock_failed = flock (dir_fd, lock_op)))
+				wrap->file = dbm_open (wrap->name, flags,
+						       mode);
+			close (dir_fd);
+		}
+	} else {
+		wrap->file = dbm_open (wrap->name, flags, mode);
+		if (wrap->file)
+			lock_failed = flock (dbm_dirfno (wrap->file), lock_op);
+	}
+
+	if (!wrap->file)
+		return false;
+
+	if (lock_failed) {
+		gripe_lock (wrap->name);
+		dbm_close (wrap->file);
+		return false;
+	}
+
+	return true;
+}
+
+static datum unsorted_firstkey (man_ndbm_wrapper wrap)
+{
+	return copy_datum (dbm_firstkey (wrap->file));
+}
+
+static datum unsorted_nextkey (man_ndbm_wrapper wrap, datum key MAYBE_UNUSED)
+{
+	return copy_datum (dbm_nextkey (wrap->file));
+}
+
+datum man_ndbm_firstkey (man_ndbm_wrapper wrap)
+{
+	return man_xdbm_firstkey (wrap, unsorted_firstkey, unsorted_nextkey);
+}
+
+datum man_ndbm_nextkey (man_ndbm_wrapper wrap, datum key)
+{
+	return man_xdbm_nextkey (wrap, key);
+}
+
+struct timespec man_ndbm_get_time (man_ndbm_wrapper wrap)
+{
+	struct stat st;
+
+	if (!wrap->mtime) {
+		wrap->mtime = XMALLOC (struct timespec);
+		if (fstat (dbm_dirfno (wrap->file), &st) < 0) {
+			wrap->mtime->tv_sec = -1;
+			wrap->mtime->tv_nsec = -1;
+		} else
+			*wrap->mtime = get_stat_mtime (&st);
+	}
+
+	return *wrap->mtime;
+}
+
+#endif /* NDBM */
diff --git a/libdb/db_storage.h b/libdb/db_storage.h
new file mode 100644
index 0000000..21335d6
--- /dev/null
+++ b/libdb/db_storage.h
@@ -0,0 +1,88 @@
+/*
+ * db_storage.h: define mandata structure, some macros and prototypes
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2002, 2003, 2007, 2008 Colin Watson.
+ *
+ * This file is part of man-db.
+ *
+ * man-db is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * man-db is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with man-db; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Sat Oct 29 13:09:31 GMT 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifndef DB_STORAGE_H
+#define DB_STORAGE_H
+
+#include <stdbool.h>
+
+#include "gl_list.h"
+
+/* These definitions give an inherent precedence to each particular type
+   of manual page:
+
+   ULT_MAN:	ultimate manual page, the full source nroff file.
+   SO_MAN:	source nroff file containing .so request to an ULT_MAN.
+   WHATIS_MAN:	virtual `whatis referenced' page pointing to an ULT_MAN.
+   STRAY_CAT:	pre-formatted manual page with no source.
+   WHATIS_CAT:  virtual `whatis referenced' page pointing to a STRAY_CAT. */
+
+/* WHATIS_MAN and WHATIS_CAT are deprecated. */
+
+#define ULT_MAN		'A'
+#define SO_MAN		'B'
+#define WHATIS_MAN	'C'
+#define STRAY_CAT	'D'
+#define WHATIS_CAT	'E'
+
+#define FIELDS  10      /* No of fields in each database page `content' */
+
+#include "filenames.h"
+
+#include "mydbm.h"
+
+struct name_ext {
+	const char *name;
+	const char *ext;
+};
+
+/* used by the world */
+extern gl_list_t dblookup_all (MYDBM_FILE dbf, const char *page,
+			       const char *section, bool match_case);
+extern struct mandata *dblookup_exact (MYDBM_FILE dbf, const char *page,
+				       const char *section, bool match_case);
+extern gl_list_t dblookup_pattern (MYDBM_FILE dbf, const char *page,
+				   const char *section, bool match_case,
+				   bool pattern_regex, bool try_descriptions);
+extern int dbstore (MYDBM_FILE dbf, struct mandata *in, const char *base);
+extern int dbdelete (MYDBM_FILE dbf, const char *name, struct mandata *in);
+extern void dbprintf (const struct mandata *info);
+extern struct mandata *split_content (MYDBM_FILE dbf, char *cont_ptr);
+extern int compare_ids (char a, char b, bool promote_links);
+
+/* local to db routines */
+extern void gripe_lock (const char *filename);
+extern void gripe_corrupt_data (MYDBM_FILE dbf);
+extern datum make_multi_key (const char *page, const char *ext);
+
+extern char *name_to_key (const char *name);
+bool name_ext_equals (const void *elt1, const void *elt2);
+int name_ext_compare (const void *elt1, const void *elt2);
+/* Returns a list of struct name_ext. */
+extern gl_list_t list_extensions (char *data);
+extern void gripe_replace_key (MYDBM_FILE dbf, const char *data);
+extern const char *dash_if_unset (const char *str);
+
+#endif
diff --git a/libdb/db_store.c b/libdb/db_store.c
new file mode 100644
index 0000000..12b3b9f
--- /dev/null
+++ b/libdb/db_store.c
@@ -0,0 +1,454 @@
+/*
+ * db_store.c: dbstore(), database storage routine.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2001, 2002 Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug  8 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "attribute.h"
+#include "error.h"
+#include "gl_array_list.h"
+#include "gl_xlist.h"
+#include "timespec.h"
+#include "xalloc.h"
+#include "xvasprintf.h"
+
+#include "manconfig.h"
+
+#include "debug.h"
+#include "filenames.h"
+#include "glcontainers.h"
+
+#include "mydbm.h"
+#include "db_storage.h"
+
+/* compare_ids(a,b) is negative if id 'a' is preferred to id 'b', i.e. if
+ * 'a' is a more canonical database entry than 'b'; positive if 'b' is
+ * preferred to 'a'; and zero if they are equivalent. This usually goes in
+ * comparison order, but there's a special exception when FAVOUR_STRAYCATS
+ * is set.
+ *
+ * If promote_links is true, consider SO_MAN equivalent to ULT_MAN. This is
+ * appropriate when sorting candidate pages for display.
+ */
+int ATTRIBUTE_CONST compare_ids (char a, char b, bool promote_links)
+{
+#ifdef FAVOUR_STRAYCATS
+	if (a == WHATIS_MAN && b == STRAY_CAT)
+		return 1;
+	else if (a == STRAY_CAT && b == WHATIS_MAN)
+		return -1;
+#endif
+
+	if (promote_links) {
+		if ((a == ULT_MAN && b == SO_MAN) ||
+		    (a == SO_MAN && b == ULT_MAN))
+			return 0;
+	}
+
+	if (a < b)
+		return -1;
+	else if (a > b)
+		return 1;
+	else
+		return 0;
+}
+
+enum replace_action {
+	REPLACE_YES = 0,
+	REPLACE_NO,
+	REPLACE_FAIL
+};
+
+/* The do_we_replace logic. Decide, for some existing key, whether it should
+ * be replaced with some new contents. Check that names and section
+ * extensions match before calling this.
+ */
+static int replace_if_necessary (MYDBM_FILE dbf,
+				 struct mandata *newdata,
+				 struct mandata *olddata,
+				 datum newkey, datum newcont)
+{
+	enum replace_action action;
+
+	/* It's OK to replace ULT_MAN with SO_MAN if the mtime is newer. It
+	 * isn't OK to replace a real page (either ULT_MAN or SO_MAN) with a
+	 * whatis reference; if the real page really went away then
+	 * purge_missing will catch that in time, but a real page that still
+	 * exists should always take precedence.
+	 *
+	 * Tie-break whatis references by lexicographical sort of
+	 * the pointed-to page names, which isn't great but at least
+	 * gives us something reproducible.
+	 *
+	 * TODO: name fields should be collated with the requested name
+	 */
+	if (compare_ids (newdata->id, olddata->id, false) < 0) {
+		debug ("replace_if_necessary: stronger ID; replacing\n");
+		action = REPLACE_YES;
+	} else if (compare_ids (newdata->id, olddata->id, true) <= 0 &&
+		   timespec_cmp (newdata->mtime, olddata->mtime) > 0) {
+		debug ("replace_if_necessary: newer mtime; replacing\n");
+		action = REPLACE_YES;
+	} else if (compare_ids (newdata->id, olddata->id, true) <= 0 &&
+		   timespec_cmp (newdata->mtime, olddata->mtime) < 0) {
+		debug ("replace_if_necessary: older mtime; not replacing\n");
+		action = REPLACE_NO;
+	} else if (compare_ids (newdata->id, olddata->id, false) > 0) {
+		debug ("replace_if_necessary: weaker ID; not replacing\n");
+		action = REPLACE_NO;
+	} else if (newdata->pointer && olddata->pointer &&
+		   strcmp (newdata->pointer, olddata->pointer) < 0) {
+		debug ("replace_if_necessary: pointer '%s' < '%s'; "
+		       "replacing\n", newdata->pointer, olddata->pointer);
+		action = REPLACE_YES;
+	} else if (newdata->pointer && olddata->pointer &&
+		   strcmp (newdata->pointer, olddata->pointer) > 0) {
+		debug ("replace_if_necessary: pointer '%s' > '%s'; "
+		       "not replacing\n", newdata->pointer, olddata->pointer);
+		action = REPLACE_NO;
+	} else if (!STREQ (dash_if_unset (newdata->comp),
+			  olddata->comp)) {
+		debug ("replace_if_necessary: differing compression "
+		       "extensions (%s != %s); failing\n",
+		       dash_if_unset (newdata->comp), olddata->comp);
+		action = REPLACE_FAIL;
+	} else {
+		debug ("replace_if_necessary: match; not replacing\n");
+		action = REPLACE_NO;
+	}
+
+	switch (action) {
+		case REPLACE_YES:
+			if (MYDBM_REPLACE (dbf, newkey, newcont))
+				gripe_replace_key (dbf, MYDBM_DPTR (newkey));
+			return 0;
+		case REPLACE_NO:
+			/* Insert if missing, but ignore failures. */
+			MYDBM_INSERT (dbf, newkey, newcont);
+			return 0;
+		default:
+			return 1;
+	}
+}
+
+/* The complement of split_content */
+static datum make_content (struct mandata *in)
+{
+	datum cont;
+	static const char dash[] = "-";
+	char *value;
+
+	memset (&cont, 0, sizeof cont);
+
+	if (!in->pointer)
+		in->pointer = xstrdup (dash);
+	if (!in->comp)
+		in->comp = xstrdup (dash);
+	if (!in->filter)
+		in->filter = xstrdup (dash);
+	if (!in->whatis)
+		in->whatis = xstrdup (dash + 1);
+
+	value = xasprintf (
+		"%s\t%s\t%s\t%ld\t%ld\t%c\t%s\t%s\t%s\t%s",
+		dash_if_unset (in->name),
+		in->ext,
+		in->sec,
+		(long) in->mtime.tv_sec,
+		(long) in->mtime.tv_nsec,
+		in->id,
+		in->pointer,
+		in->filter,
+		in->comp,
+		in->whatis);
+	assert (value);
+	MYDBM_SET (cont, value);
+
+#ifdef NDBM
+	/* limit of 4096 bytes of data using ndbm */
+	if (MYDBM_DSIZE (cont) > 4095) {
+		MYDBM_DPTR (cont)[4095] = '\0';
+		MYDBM_DSIZE (cont) = 4096;
+	}
+#endif
+	return cont;
+}
+
+/* The complement of list_extensions. */
+static char *make_extensions_reference (gl_list_t refs)
+{
+	struct name_ext *ref;
+	size_t len = 0;
+	char *data, *cur;
+
+	GL_LIST_FOREACH (refs, ref)
+		len += strlen (ref->name) + strlen (ref->ext) + 2;
+
+	cur = data = xmalloc (len + 1);
+	GL_LIST_FOREACH (refs, ref) {
+		*cur++ = '\t';
+		cur = stpcpy (cur, ref->name);
+		*cur++ = '\t';
+		cur = stpcpy (cur, ref->ext);
+	}
+
+	return data;
+}
+
+/*
+ Any one of three situations can occur when storing some data.
+
+ 1) no simple key is found.
+ 	store as singular reference.
+ 2) simple key already exists, content starts with a '\t'.
+ 	Already multiple reference. Add our new item in multiple format
+ 	and update the simple key content, to point to our new one also.
+ 3) simple key already exists, content does not start with a '\t'.
+ 	First we have to reformat the simple key into a multi key for the
+ 	old item, and insert. Then we have to insert the new data as a
+ 	multi key. Lastly we must create the simple key and do a replace
+ 	on it.
+
+ Use precedence algorithm on inserts. If we already have a key assigned
+ to the new value, check priority of page using id. If new page is higher
+ (lower value), replace old with new, otherwise ignore new page.
+
+ If we have two ULT_MAN pages competing for the same key, we must have
+ more than one of foo.sec, foo.sec.comp1, foo.sec.comp2. OR we have a
+ replacement page. If the mtimes differ, throw out the old struct and
+ replace it with the new, if the comp exts differ, oops, this is bad,
+ keep one and return appropriate error code.
+
+ If we have two WHATIS_MAN pages or a WHATIS_MAN and a SO_MAN page
+ competing for the same key, don't worry. This will happen a lot and is
+ not a problem.
+
+ return errorcode or 0 on success.
+*/
+int dbstore (MYDBM_FILE dbf, struct mandata *in, const char *base)
+{
+	datum oldkey, oldcont;
+	gl_list_t refs;
+	struct name_ext *ref;
+	char *value;
+	int ret = 0;
+
+	memset (&oldkey, 0, sizeof oldkey);
+	memset (&oldcont, 0, sizeof oldcont);
+
+	/* create a simple key */
+	MYDBM_SET (oldkey, name_to_key (base));
+ 	if (!*base) {
+		dbprintf (in);
+ 		return 2;
+ 	}
+
+	if (in->name) {
+		error (0, 0, "in->name (%s) should not be set when calling "
+			     "dbstore()!\n",
+		       in->name);
+		free (in->name);
+		in->name = NULL;
+	}
+
+	/* get the content for the simple key */
+
+	oldcont = MYDBM_FETCH (dbf, oldkey);
+
+	if (MYDBM_DPTR (oldcont) == NULL) { 		/* situation (1) */
+		if (!STREQ (base, MYDBM_DPTR (oldkey)))
+			in->name = xstrdup (base);
+		oldcont = make_content (in);
+		if (MYDBM_REPLACE (dbf, oldkey, oldcont))
+			gripe_replace_key (dbf, MYDBM_DPTR (oldkey));
+		MYDBM_FREE_DPTR (oldcont);
+		free (in->name);
+		in->name = NULL;
+	} else if (*MYDBM_DPTR (oldcont) == '\t') { 	/* situation (2) */
+		datum newkey, newcont;
+
+		memset (&newkey, 0, sizeof newkey);
+		memset (&newcont, 0, sizeof newcont);
+
+		newkey = make_multi_key (base, in->ext);
+		newcont = make_content (in);
+
+		/* Try to insert the new multi data */
+
+		if (MYDBM_INSERT (dbf, newkey, newcont)) {
+			datum cont;
+			struct mandata *info;
+
+			MYDBM_FREE_DPTR (oldcont);
+			cont = MYDBM_FETCH (dbf, newkey);
+			info = split_content (dbf, MYDBM_DPTR (cont));
+			ret = replace_if_necessary (dbf, in, info,
+						    newkey, newcont);
+			MYDBM_FREE_DPTR (cont);
+			free_mandata_struct (info);
+			MYDBM_FREE_DPTR (newkey);
+			MYDBM_FREE_DPTR (newcont);
+			MYDBM_FREE_DPTR (oldkey);
+
+			return ret;
+		}
+
+		/* Now lets add some info to the simple key's cont. */
+
+		/* This next bit needs to be done first as we'll wipe out
+		   MYDBM_DPTR (oldcont) otherwise (for NDBM only!) */
+
+		MYDBM_FREE_DPTR (newkey);
+		MYDBM_FREE_DPTR (newcont);
+
+		refs = list_extensions (MYDBM_DPTR (oldcont) + 1);
+		ref = XMALLOC (struct name_ext);
+		/* Not copied. */
+		ref->name = base;
+		ref->ext = in->ext;
+		gl_sortedlist_add (refs, name_ext_compare, ref);
+		value = make_extensions_reference (refs);
+		gl_list_free (refs);
+
+		MYDBM_SET (newcont, value);
+		MYDBM_FREE_DPTR (oldcont);
+
+		/* Try to replace the old simple data with the new stuff */
+
+		if (MYDBM_REPLACE (dbf, oldkey, newcont))
+			gripe_replace_key (dbf, MYDBM_DPTR (oldkey));
+
+		MYDBM_FREE_DPTR (newcont);
+	} else { 				/* situation (3) */
+		datum newkey, newcont, lastkey, lastcont;
+		struct mandata *old;
+		char *old_name;
+
+		memset (&newkey, 0, sizeof newkey);
+		memset (&newcont, 0, sizeof newcont);
+		memset (&lastkey, 0, sizeof lastkey);
+		memset (&lastcont, 0, sizeof lastcont);
+
+		/* Extract the old singular reference */
+
+		old = split_content (dbf, MYDBM_DPTR (oldcont));
+
+		/* Create multi keys for both old
+		   and new items, create new content */
+
+		if (old->name)
+			old_name = xstrdup (old->name);
+		else
+			old_name = xstrdup (MYDBM_DPTR (oldkey));
+
+		lastkey = make_multi_key (old_name, old->ext);
+
+		/* Check against identical multi keys before inserting
+		   into db */
+
+		if (STREQ (old_name, base) && STREQ (old->ext, in->ext)) {
+			if (!STREQ (base, MYDBM_DPTR (oldkey)))
+				in->name = xstrdup (base);
+			newcont = make_content (in);
+			ret = replace_if_necessary (dbf, in, old,
+						    oldkey, newcont);
+			MYDBM_FREE_DPTR (oldcont);
+			free_mandata_struct (old);
+			MYDBM_FREE_DPTR (newcont);
+			MYDBM_FREE_DPTR (lastkey);
+			MYDBM_FREE_DPTR (oldkey);
+			free (old_name);
+			free (in->name);
+			in->name = NULL;
+
+			return ret;
+		}
+
+		/* Multi keys use the proper case, and so don't need a name
+		 * field.
+		 */
+		if (old->name) {
+			free (old->name);
+			old->name = NULL;
+		}
+
+		lastcont = make_content (old);
+
+		/* We always replace here; if the multi key already exists
+		 * in the database, then that indicates some kind of
+		 * database corruption, but our new multi key is almost
+		 * certainly better.
+		 */
+		if (MYDBM_REPLACE (dbf, lastkey, lastcont))
+			gripe_replace_key (dbf, MYDBM_DPTR (lastkey));
+
+		MYDBM_FREE_DPTR (lastkey);
+		MYDBM_FREE_DPTR (lastcont);
+
+		newkey = make_multi_key (base, in->ext);
+		newcont = make_content (in);
+
+		ret = replace_if_necessary (dbf, in, old, newkey, newcont);
+
+		MYDBM_FREE_DPTR (newkey);
+		MYDBM_FREE_DPTR (newcont);
+
+		/* Now build a simple reference to the above two items */
+
+		refs = gl_list_create_empty (GL_ARRAY_LIST, name_ext_equals,
+					     NULL, plain_free, true);
+		ref = XMALLOC (struct name_ext);
+		/* Not copied. */
+		ref->name = old_name;
+		ref->ext = old->ext;
+		gl_sortedlist_add (refs, name_ext_compare, ref);
+		ref = XMALLOC (struct name_ext);
+		/* Not copied. */
+		ref->name = base;
+		ref->ext = in->ext;
+		gl_sortedlist_add (refs, name_ext_compare, ref);
+		value = make_extensions_reference (refs);
+		gl_list_free (refs);
+
+		MYDBM_SET (newcont, value);
+
+		if (MYDBM_REPLACE (dbf, oldkey, newcont))
+			gripe_replace_key (dbf, MYDBM_DPTR (oldkey));
+
+		MYDBM_FREE_DPTR (oldcont);
+		free_mandata_struct (old);
+		MYDBM_FREE_DPTR (newcont);
+		free (old_name);
+	}
+
+	MYDBM_FREE_DPTR (oldkey);
+	return ret;
+}
diff --git a/libdb/db_ver.c b/libdb/db_ver.c
new file mode 100644
index 0000000..fac9c5a
--- /dev/null
+++ b/libdb/db_ver.c
@@ -0,0 +1,87 @@
+/*
+ * dbver.c: code to read, write and identify the database version no.
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2001, 2002 Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Mon Aug 18 20:35:30 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "gettext.h"
+#define _(String) gettext (String)
+
+#include "xalloc.h"
+
+#include "manconfig.h"
+
+#include "debug.h"
+#include "fatal.h"
+
+#include "mydbm.h"
+
+int dbver_rd (MYDBM_FILE dbfile)
+{
+	datum key, content;
+
+	memset (&key, 0, sizeof key);
+
+	MYDBM_SET (key, xstrdup (VER_KEY));
+
+	content = MYDBM_FETCH (dbfile, key);
+
+	MYDBM_FREE_DPTR (key);
+
+	if (MYDBM_DPTR (content) == NULL) {
+		debug (_("warning: %s has no version identifier\n"),
+		       dbfile->name);
+		return 1;
+	} else if (!STREQ (MYDBM_DPTR (content), VER_ID)) {
+		debug (_("warning: %s is version %s, expecting %s\n"),
+		       dbfile->name, MYDBM_DPTR (content), VER_ID);
+		MYDBM_FREE_DPTR (content);
+		return 1;
+	} else {
+		MYDBM_FREE_DPTR (content);
+		return 0;
+	}
+}
+
+void dbver_wr (MYDBM_FILE dbfile)
+{
+	datum key, content;
+
+	memset (&key, 0, sizeof key);
+	memset (&content, 0, sizeof content);
+
+	MYDBM_SET (key, xstrdup (VER_KEY));
+	MYDBM_SET (content, xstrdup (VER_ID));
+
+	if (MYDBM_INSERT (dbfile, key, content) != 0)
+		fatal (0,
+		       _("fatal: unable to insert version identifier into %s"),
+		       dbfile->name);
+
+	MYDBM_FREE_DPTR (key);
+	MYDBM_FREE_DPTR (content);
+}
diff --git a/libdb/db_xdbm.c b/libdb/db_xdbm.c
new file mode 100644
index 0000000..ed6c027
--- /dev/null
+++ b/libdb/db_xdbm.c
@@ -0,0 +1,171 @@
+/*
+ * db_xdbm.c: common code for gdbm and ndbm backends
+ *
+ * Copyright (C) 2003-2019 Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#if defined(GDBM) || defined(NDBM)
+
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "gl_hash_map.h"
+#include "gl_rbtree_list.h"
+#include "gl_xlist.h"
+#include "gl_xmap.h"
+#include "hash-pjw-bare.h"
+#include "xalloc.h"
+
+#include "manconfig.h"
+
+#include "cleanup.h"
+#include "glcontainers.h"
+
+#include "db_xdbm.h"
+#include "mydbm.h"
+
+static gl_map_t parent_keys;
+
+static int datum_compare (const void *a, const void *b)
+{
+	const datum *left = (const datum *) a;
+	const datum *right = (const datum *) b;
+	int cmp;
+	size_t minsize;
+
+	/* Sentinel NULL elements sort to the end. */
+	if (!MYDBM_DPTR (*left))
+		return 1;
+	else if (!MYDBM_DPTR (*right))
+		return -1;
+
+	if (MYDBM_DSIZE (*left) < MYDBM_DSIZE (*right))
+		minsize = MYDBM_DSIZE (*left);
+	else
+		minsize = MYDBM_DSIZE (*right);
+	cmp = strncmp (MYDBM_DPTR (*left), MYDBM_DPTR (*right), minsize);
+	if (cmp)
+		return cmp;
+	else if (MYDBM_DSIZE (*left) < MYDBM_DSIZE (*right))
+		return 1;
+	else if (MYDBM_DSIZE (*left) > MYDBM_DSIZE (*right))
+		return -1;
+	else
+		return 0;
+}
+
+static bool datum_equals (const void *a, const void *b)
+{
+	return datum_compare (a, b) == 0;
+}
+
+static size_t datum_hash (const void *value)
+{
+	const datum *d = value;
+	return hash_pjw_bare (MYDBM_DPTR (*d), MYDBM_DSIZE (*d));
+}
+
+static void datum_free (const void *value)
+{
+	MYDBM_FREE_DPTR (*(datum *) value);
+}
+
+static datum empty_datum = { NULL, 0 };
+
+/* We keep a map of filenames to sorted lists of keys.  Each list is stored
+ * using a hash-based implementation that allows lookup by name and
+ * traversal to the next item in O(log n) time, which is necessary for a
+ * reasonable ordered implementation of nextkey.
+ */
+datum man_xdbm_firstkey (MYDBM_FILE dbf,
+			 man_xdbm_unsorted_firstkey unsorted_firstkey,
+			 man_xdbm_unsorted_nextkey unsorted_nextkey)
+{
+	gl_list_t keys;
+	datum *key;
+
+	/* Build the raw sorted list of keys. */
+	keys = gl_list_create_empty (GL_RBTREE_LIST, datum_equals, datum_hash,
+				     datum_free, false);
+	key = XMALLOC (datum);
+	*key = unsorted_firstkey (dbf);
+	while (MYDBM_DPTR (*key)) {
+		datum *next;
+
+		gl_sortedlist_add (keys, datum_compare, key);
+		next = XMALLOC (datum);
+		*next = unsorted_nextkey (dbf, *key);
+		key = next;
+	}
+
+	if (!parent_keys) {
+		parent_keys = new_string_map (GL_HASH_MAP,
+					      (gl_mapvalue_dispose_fn)
+					      gl_list_free);
+		push_cleanup ((cleanup_fun) gl_map_free, parent_keys, 0);
+	}
+
+	/* Remember this structure for use by nextkey. */
+	gl_map_put (parent_keys, xstrdup (dbf->name), keys);
+
+	if (gl_list_size (keys))
+		return copy_datum (*(datum *) gl_list_get_at (keys, 0));
+	else
+		return empty_datum;
+}
+
+datum man_xdbm_nextkey (MYDBM_FILE dbf, datum key)
+{
+	gl_list_t keys;
+	gl_list_node_t node, next_node;
+
+	if (!parent_keys)
+		return empty_datum;
+	keys = (gl_list_t) gl_map_get (parent_keys, dbf->name);
+	if (!keys)
+		return empty_datum;
+
+	node = gl_sortedlist_search (keys, datum_compare, &key);
+	if (!node)
+		return empty_datum;
+	next_node = gl_list_next_node (keys, node);
+	if (!next_node)
+		return empty_datum;
+
+	return copy_datum (*(datum *) gl_list_node_value (keys, next_node));
+}
+
+void man_xdbm_free (MYDBM_FILE dbf, man_xdbm_raw_close raw_close)
+{
+	if (!dbf)
+		return;
+
+	if (parent_keys)
+		gl_map_remove (parent_keys, dbf->name);
+
+	free (dbf->name);
+	raw_close (dbf);
+	free (dbf->mtime);
+	free (dbf);
+}
+
+#endif /* GDBM || NDBM */
diff --git a/libdb/db_xdbm.h b/libdb/db_xdbm.h
new file mode 100644
index 0000000..2d16d16
--- /dev/null
+++ b/libdb/db_xdbm.h
@@ -0,0 +1,40 @@
+/*
+ * db_xdbm.c: interface to common code for gdbm and ndbm backends
+ *
+ * Copyright (C) 2019 Colin Watson.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef MAN_XDBM_H
+#define MAN_XDBM_H
+
+#if defined(GDBM) || defined(NDBM)
+
+#include "mydbm.h"
+
+typedef datum (*man_xdbm_unsorted_firstkey) (MYDBM_FILE dbf);
+typedef datum (*man_xdbm_unsorted_nextkey) (MYDBM_FILE dbf, datum key);
+typedef void (*man_xdbm_raw_close) (MYDBM_FILE dbf);
+
+datum man_xdbm_firstkey (MYDBM_FILE dbf,
+			 man_xdbm_unsorted_firstkey firstkey,
+			 man_xdbm_unsorted_nextkey nextkey);
+datum man_xdbm_nextkey (MYDBM_FILE dbf, datum key);
+void man_xdbm_free (MYDBM_FILE dbf, man_xdbm_raw_close raw_close);
+
+#endif /* GDBM || NDBM */
+
+#endif /* MAN_XDBM_H */
diff --git a/libdb/mydbm.h b/libdb/mydbm.h
new file mode 100644
index 0000000..370a91a
--- /dev/null
+++ b/libdb/mydbm.h
@@ -0,0 +1,200 @@
+/*
+ * mydbm.h: database interface definitions and prototypes.
+ *
+ * Copyright (C) 1994, 1995, Graeme W. Wilford. (Wilf.)
+ *
+ * This file is part of man-db.
+ *
+ * man-db is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * man-db is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with man-db; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Header file to make programming independent of db type used
+ *
+ * Currently satisfies:
+ *
+ *	*hash based*
+ *		GNU dbm: 	(gdbm & ndbm)
+ *		Berkeley db: 	(ndbm)
+ *		`native': 	(ndbm)
+ *
+ *	*binary tree based*
+ *		Berkeley db: 	(BTREE)
+ *
+ * Tue Apr 26 12:56:44 BST 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
+ */
+
+#ifndef MYDBM_H
+# define MYDBM_H
+
+# include <stdbool.h>
+
+# include "timespec.h"
+# include "xvasprintf.h"
+
+# if defined(GDBM) && !defined(NDBM) && !defined(BTREE)
+
+#  include <gdbm.h>
+
+#  ifndef HAVE_GDBM_EXISTS
+extern int gdbm_exists (GDBM_FILE db, datum key);
+#  endif /* !HAVE_GDBM_EXISTS */
+
+/* gdbm_nextkey() is not lexicographically sorted, so we need to keep the
+ * filename around to use as a hash key.
+ */
+typedef struct {
+	char *name;
+	GDBM_FILE file;
+	struct timespec *mtime;
+} *man_gdbm_wrapper;
+
+man_gdbm_wrapper man_gdbm_new (const char *name);
+bool man_gdbm_open_wrapper (man_gdbm_wrapper wrap, int flags);
+datum man_gdbm_firstkey (man_gdbm_wrapper wrap);
+datum man_gdbm_nextkey (man_gdbm_wrapper wrap, datum key);
+struct timespec man_gdbm_get_time (man_gdbm_wrapper wrap);
+void man_gdbm_free (man_gdbm_wrapper wrap);
+
+#  define BLK_SIZE			0  /* to invoke normal fs block size */
+#  define DB_EXT				".db"
+#  define MYDBM_FILE 			man_gdbm_wrapper
+#  define MYDBM_NEW(file)		man_gdbm_new(file)
+#  define MYDBM_DPTR(d)			((d).dptr)
+#  define MYDBM_SET_DPTR(d, value)	((d).dptr = (value))
+#  define MYDBM_DSIZE(d)		((d).dsize)
+#  define MYDBM_CTRWOPEN(wrap)		\
+	man_gdbm_open_wrapper(wrap, GDBM_NEWDB|GDBM_FAST)
+#  define MYDBM_RWOPEN(wrap)		\
+	man_gdbm_open_wrapper(wrap, GDBM_WRITER|GDBM_FAST)
+#  define MYDBM_RDOPEN(wrap)		\
+	man_gdbm_open_wrapper(wrap, GDBM_READER)
+#  define MYDBM_INSERT(db, key, cont)	gdbm_store((db)->file, key, cont, GDBM_INSERT)
+#  define MYDBM_REPLACE(db, key, cont) 	gdbm_store((db)->file, key, cont, GDBM_REPLACE)
+#  define MYDBM_EXISTS(db, key)		gdbm_exists((db)->file, key)
+#  define MYDBM_DELETE(db, key)		gdbm_delete((db)->file, key)
+#  define MYDBM_FETCH(db, key)		gdbm_fetch((db)->file, key)
+#  define MYDBM_FREE(db)		man_gdbm_free(db)
+#  define MYDBM_FIRSTKEY(db)		man_gdbm_firstkey(db)
+#  define MYDBM_NEXTKEY(db, key)		man_gdbm_nextkey(db, key)
+#  define MYDBM_GET_TIME(db)		man_gdbm_get_time(db)
+
+# elif defined(NDBM) && !defined(GDBM) && !defined(BTREE)
+
+#  include <fcntl.h>
+#  include <ndbm.h>
+
+/* Berkeley db routines emulate ndbm but don't add .dir & .pag, just .db! */
+#  ifdef _DB_H_ /* has Berkeley db.h been included? */
+#   define BERKELEY_DB
+#  endif /* _DB_H_ */
+
+typedef struct {
+	char *name;
+	DBM *file;
+	struct timespec *mtime;
+} *man_ndbm_wrapper;
+
+extern man_ndbm_wrapper man_ndbm_new (const char *name);
+extern bool man_ndbm_open (man_ndbm_wrapper wrap, int flags, int mode);
+extern datum man_ndbm_firstkey (man_ndbm_wrapper wrap);
+extern datum man_ndbm_nextkey (man_ndbm_wrapper wrap, datum key);
+extern struct timespec man_ndbm_get_time (man_ndbm_wrapper wrap);
+extern void man_ndbm_free (man_ndbm_wrapper wrap);
+
+#  define DB_EXT				""
+#  define MYDBM_FILE 			man_ndbm_wrapper
+#  define MYDBM_NEW(file)		man_ndbm_new(file)
+#  define MYDBM_DPTR(d)			((d).dptr)
+#  define MYDBM_SET_DPTR(d, value)	((d).dptr = (value))
+#  define MYDBM_DSIZE(d)		((d).dsize)
+#  define MYDBM_CTRWOPEN(wrap)		man_ndbm_open(wrap, O_TRUNC|O_CREAT|O_RDWR, DBMODE)
+#  define MYDBM_RWOPEN(wrap)		man_ndbm_open(wrap, O_RDWR, DBMODE)
+#  define MYDBM_RDOPEN(wrap)		man_ndbm_open(wrap, O_RDONLY, DBMODE)
+#  define MYDBM_INSERT(db, key, cont)	dbm_store((db)->file, key, cont, DBM_INSERT)
+#  define MYDBM_REPLACE(db, key, cont)	dbm_store((db)->file, key, cont, DBM_REPLACE)
+#  define MYDBM_EXISTS(db, key)		(dbm_fetch((db)->file, key).dptr != NULL)
+#  define MYDBM_DELETE(db, key)		dbm_delete((db)->file, key)
+#  define MYDBM_FETCH(db, key)		copy_datum(dbm_fetch((db)->file, key))
+#  define MYDBM_FREE(db)		man_ndbm_free(db)
+#  define MYDBM_FIRSTKEY(db)		man_ndbm_firstkey(db)
+#  define MYDBM_NEXTKEY(db, key)	man_ndbm_nextkey(db, key)
+#  define MYDBM_GET_TIME(db)		man_ndbm_get_time(db)
+
+# elif defined(BTREE) && !defined(NDBM) && !defined(GDBM)
+
+#  include <sys/types.h>
+#  include <fcntl.h>
+#  include <limits.h>
+#  include BDB_H
+
+typedef struct {
+	char *name;
+	DB *file;
+	struct timespec *mtime;
+} *man_btree_wrapper;
+
+typedef DBT datum;
+
+extern man_btree_wrapper man_btree_new (const char *filename);
+extern bool man_btree_open (man_btree_wrapper wrap, int flags, int mode);
+extern void man_btree_free (man_btree_wrapper wrap);
+extern int man_btree_exists (man_btree_wrapper wrap, datum key);
+extern datum man_btree_fetch (man_btree_wrapper wrap, datum key);
+extern int man_btree_insert (man_btree_wrapper wrap, datum key, datum cont);
+extern datum man_btree_firstkey (man_btree_wrapper wrap);
+extern datum man_btree_nextkey (man_btree_wrapper wrap);
+extern int man_btree_replace (man_btree_wrapper wrap,
+			      datum key, datum content);
+extern int man_btree_nextkeydata (man_btree_wrapper wrap,
+				  datum *key, datum *cont);
+extern struct timespec man_btree_get_time (man_btree_wrapper wrap);
+
+#  define DB_EXT			".bt"
+#  define MYDBM_FILE			man_btree_wrapper
+#  define MYDBM_NEW(file)		man_btree_new(file)
+#  define MYDBM_DPTR(d)			((char *) (d).data)
+#  define MYDBM_SET_DPTR(d, value)	((d).data = (char *) (value))
+#  define MYDBM_DSIZE(d)		((d).size)
+#  define MYDBM_CTRWOPEN(wrap)		man_btree_open(wrap, O_TRUNC|O_CREAT|O_RDWR, DBMODE)
+#  define MYDBM_RWOPEN(wrap)		man_btree_open(wrap, O_RDWR, DBMODE)
+#  define MYDBM_RDOPEN(wrap)		man_btree_open(wrap, O_RDONLY, DBMODE)
+#  define MYDBM_INSERT(db, key, cont)	man_btree_insert(db, key, cont)
+#  define MYDBM_REPLACE(db, key, cont)	man_btree_replace(db, key, cont)
+#  define MYDBM_EXISTS(db, key)		man_btree_exists(db, key)
+#  define MYDBM_DELETE(db, key)		(((db)->file->del)((db)->file, &key, 0) ? -1 : 0)
+#  define MYDBM_FETCH(db, key)		man_btree_fetch(db, key)
+#  define MYDBM_FREE(db)		man_btree_free(db)
+#  define MYDBM_FIRSTKEY(db)		man_btree_firstkey(db)
+#  define MYDBM_NEXTKEY(db, key)	man_btree_nextkey(db)
+#  define MYDBM_GET_TIME(db)		man_btree_get_time(db)
+
+# else /* not GDBM or NDBM or BTREE */
+#  error Define either GDBM, NDBM or BTREE before including mydbm.h
+# endif /* not GDBM or NDBM or BTREE */
+
+#define MYDBM_RESET_DSIZE(d)		(MYDBM_DSIZE(d) = strlen(MYDBM_DPTR(d)) + 1)
+#define MYDBM_SET(d, value)		do { MYDBM_SET_DPTR(d, value); MYDBM_RESET_DSIZE(d); } while (0)
+#define MYDBM_FREE_DPTR(d)		do { free (MYDBM_DPTR (d)); MYDBM_SET_DPTR (d, NULL); } while (0)
+
+/* db_lookup.c */
+extern datum copy_datum (datum dat);
+
+/* db_ver.c */
+extern void dbver_wr(MYDBM_FILE dbfile);
+extern int dbver_rd(MYDBM_FILE dbfile);
+
+#define MAN_DB		"/index" DB_EXT
+#define mkdbname(path)	xasprintf ("%s%s", path, MAN_DB)
+
+#endif /* MYDBM_H */