diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..e4df238 --- /dev/null +++ b/configure.ac @@ -0,0 +1,865 @@ +# -*- Autoconf -*- +# Process this file with autoconf to produce a configure script. + +# ---------------------------------------------------------------------- +# Autoconf initialization. +# ---------------------------------------------------------------------- + +AC_PREREQ([2.69]) +AC_INIT([htop], [3.3.0], [htop@groups.io], [], [https://htop.dev/]) + +AC_CONFIG_SRCDIR([htop.c]) +AC_CONFIG_AUX_DIR([build-aux]) +AC_CONFIG_HEADERS([config.h]) + +AC_CANONICAL_HOST +AM_INIT_AUTOMAKE([-Wall std-options subdir-objects]) + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for platform. +# ---------------------------------------------------------------------- + +case "$host_os" in +linux*|gnu*) + my_htop_platform=linux + AC_DEFINE([HTOP_LINUX], [], [Building for Linux.]) + ;; +freebsd*|kfreebsd*) + my_htop_platform=freebsd + AC_DEFINE([HTOP_FREEBSD], [], [Building for FreeBSD.]) + ;; +netbsd*) + my_htop_platform=netbsd + AC_DEFINE([HTOP_NETBSD], [], [Building for NetBSD.]) + ;; +openbsd*) + my_htop_platform=openbsd + AC_DEFINE([HTOP_OPENBSD], [], [Building for OpenBSD.]) + ;; +dragonfly*) + my_htop_platform=dragonflybsd + AC_DEFINE([HTOP_DRAGONFLYBSD], [], [Building for DragonFlyBSD.]) + ;; +darwin*) + my_htop_platform=darwin + AC_DEFINE([HTOP_DARWIN], [], [Building for Darwin.]) + ;; +solaris*) + my_htop_platform=solaris + AC_DEFINE([HTOP_SOLARIS], [], [Building for Solaris.]) + ;; +*) + my_htop_platform=unsupported + AC_DEFINE([HTOP_UNSUPPORTED], [], [Building for an unsupported platform.]) + ;; +esac + +# Enable extensions, required by hwloc scripts +AC_USE_SYSTEM_EXTENSIONS + +# Activate some more of the missing global defines +AC_SYS_LARGEFILE + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for compiler. +# ---------------------------------------------------------------------- + +AC_PROG_CC +AM_PROG_CC_C_O +m4_version_prereq([2.70], [], [AC_PROG_CC_C99]) +AS_IF([test "x$ac_cv_prog_cc_c99" = xno], [AC_MSG_ERROR([htop is written in C99. A newer compiler is required.])]) +AM_CFLAGS="-std=c99 -pedantic" + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for static build. +# ---------------------------------------------------------------------- + +AC_ARG_ENABLE([static], + [AS_HELP_STRING([--enable-static], + [build a static htop binary @<:@default=no@:>@])], + [], + [enable_static=no]) +case "$enable_static" in + no) + ;; + yes) + AC_DEFINE([BUILD_STATIC], [1], [Define if building static binary.]) + CFLAGS="$CFLAGS -static" + LDFLAGS="$LDFLAGS -static" + ;; + *) + AC_MSG_ERROR([bad value '$enable_static' for --enable-static option]) + ;; +esac + +# ---------------------------------------------------------------------- + +# ---------------------------------------------------------------------- +# Checks for a PCP-based htop build. (https://pcp.io) +# ---------------------------------------------------------------------- + +AC_ARG_ENABLE([pcp], + [AS_HELP_STRING([--enable-pcp], + [build a pcp-htop binary @<:@default=no@:>@])], + [], + [enable_pcp=no]) +case "$enable_pcp" in + no) + ;; + yes) + AC_CHECK_HEADERS([pcp/pmapi.h], [my_htop_platform=pcp], + [AC_MSG_ERROR([can not find PCP header file])]) + AC_SEARCH_LIBS([pmNewContext], [pcp], [], [AC_MSG_ERROR([can not find PCP library])]) + AC_DEFINE([HTOP_PCP], [1], [Define if building pcp-htop binary.]) + AC_CONFIG_FILES([pcp-htop.5]) + ;; + *) + AC_MSG_ERROR([bad value '$enable_pcp' for --enable-pcp option]) + ;; +esac + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for generic header files. +# ---------------------------------------------------------------------- + +AC_HEADER_DIRENT +m4_version_prereq([2.70], [AC_CHECK_INCLUDES_DEFAULT], [AC_HEADER_STDC]) +AC_CHECK_HEADERS([ \ + stdlib.h \ + string.h \ + strings.h \ + sys/param.h \ + sys/time.h \ + sys/utsname.h \ + unistd.h + ], [], [AC_MSG_ERROR([can not find required generic header files])]) + +AC_HEADER_MAJOR +dnl glibc 2.25 deprecates 'major' and 'minor' in <sys/types.h> and requires to +dnl include <sys/sysmacros.h>. However the logic in AC_HEADER_MAJOR has not yet +dnl been updated in Autoconf 2.69, so use a workaround: +m4_version_prereq([2.70], [], +[if test "x$ac_cv_header_sys_mkdev_h" != xyes; then + AC_CHECK_HEADER([sys/sysmacros.h], [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], + [Define to 1 if 'major', 'minor', and 'makedev' are declared in <sys/sysmacros.h>.])]) +fi]) + +# Optional Section + +AC_CHECK_HEADERS([execinfo.h]) + +if test "$my_htop_platform" = darwin; then + AC_CHECK_HEADERS([mach/mach_time.h]) +fi + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for typedefs, structures, and compiler characteristics. +# ---------------------------------------------------------------------- + +AC_TYPE_MBSTATE_T +AC_TYPE_MODE_T +AC_TYPE_OFF_T +AC_TYPE_PID_T +AC_TYPE_SIZE_T +AC_TYPE_SSIZE_T +AC_TYPE_UID_T +AC_TYPE_UINT8_T +AC_TYPE_UINT16_T +AC_TYPE_UINT32_T +AC_TYPE_UINT64_T + +AC_MSG_CHECKING(for alloc_size) +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Wno-error -Werror=attributes" +AC_COMPILE_IFELSE([ + AC_LANG_SOURCE( + [ + __attribute__((alloc_size(1))) char* my_alloc(int size) { return 0; } + ],[] + )], + AC_DEFINE([HAVE_ATTR_ALLOC_SIZE], 1, [The alloc_size attribute is supported.]) + AC_MSG_RESULT(yes), + AC_MSG_RESULT(no)) +CFLAGS="$old_CFLAGS" + +AC_MSG_CHECKING(for access) +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Wno-error -Werror=attributes" +AC_COMPILE_IFELSE([ + AC_LANG_SOURCE( + [ + __attribute__((access(read_only, 1, 2))) extern int foo(const char* str, unsigned len); + ],[] + )], + AC_DEFINE([HAVE_ATTR_ACCESS], 1, [The access attribute is supported.]) + AC_MSG_RESULT(yes), + AC_MSG_RESULT(no)) +CFLAGS="$old_CFLAGS" + +AC_MSG_CHECKING(for nonnull) +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Wno-error -Werror=attributes" +AC_COMPILE_IFELSE([ + AC_LANG_SOURCE( + [[ + /* Attribute supported in GCC 3.3 or later */ + __attribute__((nonnull)) int my_strcmp(const char* a, const char* b); + __attribute__((nonnull(1))) long my_strtol(const char* str, char** endptr, int base); + ]] + )], + AC_DEFINE([HAVE_ATTR_NONNULL], 1, [The nonnull attribute is supported.]) + AC_MSG_RESULT(yes), + AC_MSG_RESULT(no)) +CFLAGS="$old_CFLAGS" + +AC_MSG_CHECKING(for NaN support) +dnl Note: AC_RUN_IFELSE does not try compiling the program at all when +dnl $cross_compiling is 'yes'. +AC_LINK_IFELSE([ + AC_LANG_PROGRAM( + [[ +#include <math.h> + ]], + [[ + double x = NAN; + /* Both should evaluate to false -> 0 (exit success) */ + return isgreater(x, x) || isgreaterequal(x, x); + ]] + )], + [flag_finite_math_only=unknown + if test "$cross_compiling" = yes; then + AC_COMPILE_IFELSE([ + AC_LANG_SOURCE([[ +/* __FINITE_MATH_ONLY__ is documented in Clang. */ +#ifdef __FINITE_MATH_ONLY__ +#error "should not enable -ffinite-math-only" +#endif + ]])], + AC_MSG_RESULT([assume yes (cross compiling)]), + flag_finite_math_only=yes) + elif ./conftest$EXEEXT >&AS_MESSAGE_LOG_FD; then + flag_finite_math_only=no + AC_MSG_RESULT(yes) + else + flag_finite_math_only=yes + fi + if test "$flag_finite_math_only" = yes; then + AC_MSG_RESULT(no) + AC_MSG_WARN([runtime behavior with NaN is not compliant - some functionality might break; consider using '-fno-finite-math-only']) + fi], + [AC_MSG_RESULT(no) + AC_MSG_ERROR([can not find required macros: NAN, isgreater() and isgreaterequal()])]) + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for generic library functions. +# ---------------------------------------------------------------------- + +AC_SEARCH_LIBS([ceil], [m], [], [AC_MSG_ERROR([can not find required function ceil()])]) + +if test "$my_htop_platform" = dragonflybsd; then + AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) +fi + +if test "$my_htop_platform" = freebsd; then + if test "$enable_static" = yes; then + AC_SEARCH_LIBS([elf_version], [elf], [], [AC_MSG_ERROR([can not find required function elf_version()])]) + fi + AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) + AC_SEARCH_LIBS([devstat_checkversion], [devstat], [], [AC_MSG_ERROR([can not find required function devstat_checkversion()])]) +fi + +if test "$my_htop_platform" = linux; then + if test "$enable_static" != yes; then + AC_SEARCH_LIBS([dlopen], [dl dld], [], [AC_MSG_ERROR([can not find required function dlopen()])]) + fi +fi + +if test "$my_htop_platform" = netbsd; then + AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) + AC_SEARCH_LIBS([prop_dictionary_get], [prop], [], [AC_MSG_ERROR([can not find required function prop_dictionary_get()])]) +fi + +if test "$my_htop_platform" = openbsd; then + AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) +fi + +if test "$my_htop_platform" = solaris; then + AC_SEARCH_LIBS([kstat_open], [kstat], [], [AC_MSG_ERROR([can not find required function kstat_open()])]) + AC_SEARCH_LIBS([Pgrab_error], [proc], [], [AC_MSG_ERROR([can not find required function Pgrab_error()])]) + AC_SEARCH_LIBS([free], [malloc], [], [AC_MSG_ERROR([can not find required function free()])]) +fi + +# Optional Section + +AC_SEARCH_LIBS([clock_gettime], [rt]) + +AC_CHECK_FUNCS([ \ + clock_gettime \ + dladdr \ + faccessat \ + fstatat \ + host_get_clock_service \ + memfd_create\ + openat \ + readlinkat \ + sched_getscheduler \ + sched_setscheduler \ + strchrnul \ + ]) + +if test "$my_htop_platform" = darwin; then + AC_CHECK_FUNCS([mach_timebase_info]) + AC_CHECK_DECLS([IOMainPort], [], [], [[#include <IOKit/IOKitLib.h>]]) + AC_CHECK_DECLS([IOMasterPort], [], [], [[#include <IOKit/IOKitLib.h>]]) +fi + +if test "$my_htop_platform" = pcp; then + AC_CHECK_FUNCS([pmLookupDescs]) +fi + +if test "$my_htop_platform" = linux && test "x$enable_static" = xyes; then + AC_CHECK_LIB([systemd], [sd_bus_open_system]) +fi + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for cross-platform features and flags. +# ---------------------------------------------------------------------- + +# HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART) +m4_define([HTOP_CHECK_SCRIPT], +[ + if test ! -z "m4_toupper($HTOP_[$1]_CONFIG_SCRIPT)"; then + # to be used to set the path to ncurses*-config when cross-compiling + htop_config_script_libs=$(m4_toupper($HTOP_[$1]_CONFIG_SCRIPT) --libs 2> /dev/null) + htop_config_script_cflags=$(m4_toupper($HTOP_[$1]_CONFIG_SCRIPT) --cflags 2> /dev/null) + else + htop_config_script_libs=$([$4] --libs 2> /dev/null) + htop_config_script_cflags=$([$4] --cflags 2> /dev/null) + fi + htop_script_success=no + htop_save_CFLAGS="$AM_CFLAGS" + if test ! "x$htop_config_script_libs" = x; then + AM_CFLAGS="$AM_CFLAGS $htop_config_script_cflags" + AC_CHECK_LIB([$1], [$2], [ + AC_DEFINE([$3], 1, [The library is present.]) + LIBS="$htop_config_script_libs $LIBS " + htop_script_success=yes + ], [ + AM_CFLAGS="$htop_save_CFLAGS" + ], [ + $htop_config_script_libs + ]) + fi + if test "x$htop_script_success" = xno; then + [$5] + fi +]) + +# HTOP_CHECK_LIB(LIBNAME, FUNCTION, DEFINE, ELSE_PART) +m4_define([HTOP_CHECK_LIB], +[ + AC_CHECK_LIB([$1], [$2], [ + AC_DEFINE([$3], [1], [The library is present.]) + LIBS="-l[$1] $LIBS " + ], [$4]) +]) + +AC_ARG_ENABLE([unicode], + [AS_HELP_STRING([--enable-unicode], + [enable Unicode support @<:@default=yes@:>@])], + [], + [enable_unicode=yes]) +if test "x$enable_unicode" = xyes; then + HTOP_CHECK_SCRIPT([ncursesw6], [waddwstr], [HAVE_LIBNCURSESW], "ncursesw6-config", + HTOP_CHECK_SCRIPT([ncursesw], [waddwstr], [HAVE_LIBNCURSESW], "ncursesw6-config", + HTOP_CHECK_SCRIPT([ncursesw], [wadd_wch], [HAVE_LIBNCURSESW], "ncursesw5-config", + HTOP_CHECK_SCRIPT([ncurses], [wadd_wch], [HAVE_LIBNCURSESW], "ncurses5-config", + HTOP_CHECK_LIB([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW], + HTOP_CHECK_LIB([ncursesw], [addnwstr], [HAVE_LIBNCURSESW], + HTOP_CHECK_LIB([ncurses], [addnwstr], [HAVE_LIBNCURSESW], + AC_MSG_ERROR([can not find required library libncursesw; you may want to use --disable-unicode]) + ))))))) + + AC_CHECK_HEADERS([ncursesw/curses.h], [], + [AC_CHECK_HEADERS([ncurses/ncurses.h], [], + [AC_CHECK_HEADERS([ncurses/curses.h], [], + [AC_CHECK_HEADERS([ncurses.h], [], + [AC_MSG_ERROR([can not find required ncurses header file])])])])]) + + AC_CHECK_HEADERS([ncursesw/term.h], [], + [AC_CHECK_HEADERS([ncurses/term.h], [], + [AC_CHECK_HEADERS([term.h], [], + [AC_MSG_ERROR([can not find required term header file])])])]) + + # check if additional linker flags are needed for keypad(3) + # (at this point we already link against a working ncurses library with wide character support) + AC_SEARCH_LIBS([keypad], [tinfow tinfo]) +else + HTOP_CHECK_SCRIPT([ncurses6], [wnoutrefresh], [HAVE_LIBNCURSES], [ncurses6-config], + HTOP_CHECK_SCRIPT([ncurses], [wnoutrefresh], [HAVE_LIBNCURSES], [ncurses5-config], + HTOP_CHECK_LIB([ncurses6], [doupdate], [HAVE_LIBNCURSES], + HTOP_CHECK_LIB([ncurses], [doupdate], [HAVE_LIBNCURSES], + HTOP_CHECK_LIB([curses], [doupdate], [HAVE_LIBNCURSES], + AC_MSG_ERROR([can not find required curses/ncurses library]) + ))))) + + AC_CHECK_HEADERS([curses.h], [], + [AC_CHECK_HEADERS([ncurses/curses.h], [], + [AC_CHECK_HEADERS([ncurses/ncurses.h], [], + [AC_CHECK_HEADERS([ncurses.h], [], + [AC_MSG_ERROR([can not find required ncurses header file])])])])]) + + AC_CHECK_HEADERS([ncurses/term.h], [], + [AC_CHECK_HEADERS([term.h], [], + [AC_MSG_ERROR([can not find required term header file])])]) + + # check if additional linker flags are needed for keypad(3) + # (at this point we already link against a working ncurses library) + AC_SEARCH_LIBS([keypad], [tinfo]) +fi + +if test "$enable_static" = yes; then + AC_SEARCH_LIBS([Gpm_GetEvent], [gpm]) +fi +if test "$my_htop_platform" = "solaris"; then + # On OmniOS /usr/include/sys/regset.h redefines ERR to 13 - \r, breaking the Enter key. + # Since ncurses macros use the ERR macro, we can not use another name. + AC_DEFINE([ERR], [(-1)], [Predefine ncurses macro.]) +fi +AC_CHECK_FUNCS( [set_escdelay] ) +AC_CHECK_FUNCS( [getmouse] ) + + +AC_ARG_ENABLE([affinity], + [AS_HELP_STRING([--enable-affinity], + [enable sched_setaffinity and sched_getaffinity for affinity support, conflicts with hwloc @<:@default=check@:>@])], + [], + [enable_affinity=check]) +if test "x$enable_affinity" = xcheck; then + if test "x$enable_hwloc" = xyes; then + enable_affinity=no + else + AC_MSG_CHECKING([for usable sched_setaffinity]) + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + #include <sched.h> + #include <errno.h> + static cpu_set_t cpuset; + ]], [[ + CPU_ZERO(&cpuset); + sched_setaffinity(0, sizeof(cpu_set_t), &cpuset); + if (errno == ENOSYS) return 1; + ]])], + [enable_affinity=yes + AC_MSG_RESULT([yes])], + [enable_affinity=no + AC_MSG_RESULT([no])], + [AC_MSG_RESULT([assume yes (cross compiling)])]) + fi +fi +if test "x$enable_affinity" = xyes; then + if test "x$enable_hwloc" = xyes; then + AC_MSG_ERROR([--enable-hwloc and --enable-affinity are mutual exclusive. Specify at most one of them.]) + fi + AC_DEFINE([HAVE_AFFINITY], [1], [Define if sched_setaffinity and sched_getaffinity are to be used.]) +fi + + +AC_ARG_ENABLE([unwind], + [AS_HELP_STRING([--enable-unwind], + [enable unwind support for printing backtraces; requires libunwind @<:@default=check@:>@])], + [], + [enable_unwind=check]) +case "$enable_unwind" in + check) + enable_unwind=yes + if test "$enable_static" = yes; then + AC_CHECK_LIB([lzma], [lzma_index_buffer_decode]) + fi + AC_CHECK_LIB([unwind], [backtrace], [], [enable_unwind=no]) + AC_CHECK_HEADERS([libunwind.h], [], [ + old_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -I/usr/include/libunwind" + AC_CHECK_HEADERS([libunwind/libunwind.h], [], [ + enable_unwind=no + CFLAGS="$old_CFLAGS" + ]) + ]) + ;; + no) + ;; + yes) + AC_CHECK_LIB([unwind], [backtrace], [], [AC_MSG_ERROR([can not find required library libunwind])]) + AC_CHECK_HEADERS([libunwind.h], [], [ + AM_CFLAGS="$AM_CFLAGS -I/usr/include/libunwind" + AC_CHECK_HEADERS([libunwind/libunwind.h], [], [AC_MSG_ERROR([can not find required header file libunwind.h])]) + ]) + ;; + *) + AC_MSG_ERROR([bad value '$enable_unwind' for --enable-unwind]) + ;; +esac +if test "x$enable_unwind" = xno; then + # Fall back to backtrace(3) and add -lexecinfo if needed + AC_SEARCH_LIBS([backtrace], [execinfo]) +fi + + +AC_ARG_ENABLE([hwloc], + [AS_HELP_STRING([--enable-hwloc], + [enable hwloc support for CPU affinity; disables affinity support; requires libhwloc @<:@default=no@:>@])], + [], + [enable_hwloc=no]) +case "$enable_hwloc" in + no) + ;; + yes) + m4_ifdef([PKG_PROG_PKG_CONFIG], [ + PKG_PROG_PKG_CONFIG() + PKG_CHECK_MODULES(HWLOC, hwloc, [ + AM_CFLAGS="$AM_CFLAGS $HWLOC_CFLAGS" + LIBS="$LIBS $HWLOC_LIBS" + AC_DEFINE([HAVE_LIBHWLOC], [1], [Define to 1 if you have the 'hwloc' library (-lhwloc).]) + ], [ + AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])]) + AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])]) + ]) + ], [ + AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])]) + AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])]) + ]) + ;; + *) + AC_MSG_ERROR([bad value '$enable_hwloc' for --enable-hwloc]) + ;; +esac + + +AC_ARG_WITH([os-release], + [AS_HELP_STRING([--with-os-release=FILE], + [location of an os-release file @<:@default=/etc/os-release@:>@])], + [], + [with_os_release=/etc/os-release]) +if test -n "$with_os_release" && test ! -f "$with_os_release"; then + if test -f "/usr/lib/os-release"; then + with_os_release="/usr/lib/os-release" + fi +fi +AC_DEFINE_UNQUOTED([OSRELEASEFILE], ["$with_os_release"], [File with OS release details.]) + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for Linux features and flags. +# ---------------------------------------------------------------------- + +AC_ARG_WITH([proc], + [AS_HELP_STRING([--with-proc=DIR], + [location of a Linux-compatible proc filesystem @<:@default=/proc@:>@])], + [], + [with_proc=/proc]) +if test -z "$with_proc"; then + AC_MSG_ERROR([bad empty value for --with-proc option]) +fi +AC_DEFINE_UNQUOTED([PROCDIR], ["$with_proc"], [Path of proc filesystem.]) + + +AC_ARG_ENABLE([openvz], + [AS_HELP_STRING([--enable-openvz], + [enable OpenVZ support @<:@default=no@:>@])], + [], + [enable_openvz=no]) +if test "x$enable_openvz" = xyes; then + AC_DEFINE([HAVE_OPENVZ], [1], [Define if openvz support enabled.]) +fi + + +AC_ARG_ENABLE([vserver], + [AS_HELP_STRING([--enable-vserver], + [enable VServer support @<:@default=no@:>@])], + [], + [enable_vserver=no]) +if test "x$enable_vserver" = xyes; then + AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.]) +fi + + +AC_ARG_ENABLE([ancient_vserver], + [AS_HELP_STRING([--enable-ancient-vserver], + [enable ancient VServer support (implies --enable-vserver) @<:@default=no@:>@])], + [], + [enable_ancient_vserver=no]) +if test "x$enable_ancient_vserver" = xyes; then + if test "x$enable_vserver" != xyes; then + enable_vserver=implied + fi + AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.]) + AC_DEFINE([HAVE_ANCIENT_VSERVER], [1], [Define if ancient vserver support enabled.]) +fi + + +AC_ARG_ENABLE([capabilities], + [AS_HELP_STRING([--enable-capabilities], + [enable Linux capabilities support; requires libcap @<:@default=check@:>@])], + [], + [enable_capabilities=check]) +case "$enable_capabilities" in + no) + ;; + check) + enable_capabilities=yes + AC_CHECK_LIB([cap], [cap_init], [], [enable_capabilities=no]) + AC_CHECK_HEADERS([sys/capability.h], [], [enable_capabilities=no]) + ;; + yes) + AC_CHECK_LIB([cap], [cap_init], [], [AC_MSG_ERROR([can not find required library libcap])]) + AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([can not find required header file sys/capability.h])]) + ;; + *) + AC_MSG_ERROR([bad value '$enable_capabilities' for --enable-capabilities]) + ;; +esac + + +AC_ARG_ENABLE([delayacct], + [AS_HELP_STRING([--enable-delayacct], + [enable Linux delay accounting support; requires pkg-config, libnl-3 and libnl-genl-3 @<:@default=check@:>@])], + [], + [enable_delayacct=check]) +case "$enable_delayacct" in + no) + ;; + check) + if test "$my_htop_platform" != linux; then + enable_delayacct=no + elif test "$enable_static" = yes; then + enable_delayacct=no + else + m4_ifdef([PKG_PROG_PKG_CONFIG], [ + enable_delayacct=yes + PKG_PROG_PKG_CONFIG() + PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [enable_delayacct=no]) + PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [enable_delayacct=no]) + if test "$enable_delayacct" = yes; then + AM_CFLAGS="$AM_CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS" + LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS" + AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.]) + fi + ], [ + enable_delayacct=no + AC_MSG_NOTICE([Linux delay accounting support can not be enabled, cause pkg-config is required for checking its availability]) + ]) + fi + ;; + yes) + m4_ifdef([PKG_PROG_PKG_CONFIG], [ + PKG_PROG_PKG_CONFIG() + PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [AC_MSG_ERROR([can not find required library libnl3])]) + PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [AC_MSG_ERROR([can not find required library libnl3genl])]) + AM_CFLAGS="$AM_CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS" + LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS" + AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.]) + ], [ + pkg_m4_absent=1 + m4_warning([configure is generated without pkg.m4. 'make dist' target will be disabled.]) + AC_MSG_ERROR([htop on Linux requires pkg-config for checking delayacct requirements. Please install pkg-config and run ./autogen.sh to rebuild the configure script.]) + ]) + ;; + *) + AC_MSG_ERROR([bad value '$enable_delayacct' for --enable-delayacct]) + ;; +esac + + +AC_ARG_ENABLE([sensors], + [AS_HELP_STRING([--enable-sensors], + [enable libsensors support for reading temperature data; requires only libsensors headers at compile time, at runtime libsensors is loaded via dlopen @<:@default=check@:>@])], + [], + [enable_sensors=check]) +case "$enable_sensors" in + no) + ;; + check) + enable_sensors=yes + if test "$enable_static" = yes; then + AC_CHECK_LIB([sensors], [sensors_init], [], [enable_sensors=no]) + fi + AC_CHECK_HEADERS([sensors/sensors.h], [], [enable_sensors=no]) + ;; + yes) + if test "$enable_static" = yes; then + AC_CHECK_LIB([sensors], [sensors_init], [], [AC_MSG_ERROR([can not find required library libsensors])]) + fi + AC_CHECK_HEADERS([sensors/sensors.h], [], [AC_MSG_ERROR([can not find required header file sensors/sensors.h])]) + ;; + *) + AC_MSG_ERROR([bad value '$enable_sensors' for --enable-sensors]) + ;; +esac +if test "$enable_sensors" = yes || test "$my_htop_platform" = freebsd; then + AC_DEFINE([BUILD_WITH_CPU_TEMP], [1], [Define if CPU temperature option should be enabled.]) +fi + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# Checks for compiler warnings. +# ---------------------------------------------------------------------- + +AM_CFLAGS="$AM_CFLAGS\ + -Wall\ + -Wcast-align\ + -Wcast-qual\ + -Wextra\ + -Wfloat-equal\ + -Wformat=2\ + -Winit-self\ + -Wmissing-format-attribute\ + -Wmissing-noreturn\ + -Wmissing-prototypes\ + -Wpointer-arith\ + -Wshadow\ + -Wstrict-prototypes\ + -Wundef\ + -Wunused\ + -Wwrite-strings" + +dnl https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html +AC_DEFUN([AX_CHECK_COMPILE_FLAG], +[ +AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl +AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ + ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS + _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" + AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], + [AS_VAR_SET(CACHEVAR,[yes])], + [AS_VAR_SET(CACHEVAR,[no])]) + _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) +AS_VAR_IF(CACHEVAR,yes, + [m4_default([$2], :)], + [m4_default([$3], :)]) +AS_VAR_POPDEF([CACHEVAR])dnl +])dnl AX_CHECK_COMPILE_FLAGS + +AX_CHECK_COMPILE_FLAG([-Wextra-semi-stmt], [AM_CFLAGS="$AM_CFLAGS -Wextra-semi-stmt"], , [-Werror=unknown-warning-option]) dnl the autoconf check itself generates -Wextra-semi-stmt +AX_CHECK_COMPILE_FLAG([-Wimplicit-int-conversion], [AM_CFLAGS="$AM_CFLAGS -Wimplicit-int-conversion"], , [-Werror]) +AX_CHECK_COMPILE_FLAG([-Wnull-dereference], [AM_CFLAGS="$AM_CFLAGS -Wnull-dereference"], , [-Werror]) + +AC_ARG_ENABLE([werror], + [AS_HELP_STRING([--enable-werror], + [Treat warnings as errors @<:@default=no@:>@])], + [], + [enable_werror=no]) +if test "x$enable_werror" = xyes; then + AM_CFLAGS="$AM_CFLAGS -Werror" +fi + +AC_ARG_ENABLE([debug], + [AS_HELP_STRING([--enable-debug], + [Enable compiling with maximum debug info, asserts and internal sanity checks @<:@default=no@:>@])], + [], + [enable_debug=no]) +if test "x$enable_debug" != xyes; then + AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG" + + AC_COMPILE_IFELSE([ + AC_LANG_SOURCE([[ +#ifdef __SUPPORT_SNAN__ +#error "signaling NaN support not recommended" +#endif + ]])], + :, + [warning_msg="signaling NaN support is enabled; not recommended for htop" + case "$CC" in + *gcc*) + warning_msg="$warning_msg (use '-fno-signaling-nans' compiler flag to disable)" + ;; + esac + AC_MSG_WARN([$warning_msg]) + ]) +else + AM_CPPFLAGS="$AM_CPPFLAGS -ggdb3" +fi + + +AC_SUBST([AM_CFLAGS]) +AC_SUBST([AM_CPPFLAGS]) + +# ---------------------------------------------------------------------- + + +# ---------------------------------------------------------------------- +# We're done, let's go! +# ---------------------------------------------------------------------- + +AC_DEFINE_UNQUOTED([COPYRIGHT], ["(C) 2004-2019 Hisham Muhammad. (C) 2020-2024 htop dev team."], [Copyright message.]) + +AM_CONDITIONAL([HTOP_LINUX], [test "$my_htop_platform" = linux]) +AM_CONDITIONAL([HTOP_FREEBSD], [test "$my_htop_platform" = freebsd]) +AM_CONDITIONAL([HTOP_DRAGONFLYBSD], [test "$my_htop_platform" = dragonflybsd]) +AM_CONDITIONAL([HTOP_NETBSD], [test "$my_htop_platform" = netbsd]) +AM_CONDITIONAL([HTOP_OPENBSD], [test "$my_htop_platform" = openbsd]) +AM_CONDITIONAL([HTOP_DARWIN], [test "$my_htop_platform" = darwin]) +AM_CONDITIONAL([HTOP_SOLARIS], [test "$my_htop_platform" = solaris]) +AM_CONDITIONAL([HTOP_PCP], [test "$my_htop_platform" = pcp]) +AM_CONDITIONAL([HTOP_UNSUPPORTED], [test "$my_htop_platform" = unsupported]) + +AC_SUBST(my_htop_platform) +AC_CONFIG_FILES([Makefile htop.1]) +AC_OUTPUT + +if test "$my_htop_platform" = unsupported; then + echo "" + echo "****************************************************************" + echo "WARNING! This platform is not currently supported by htop." + echo "" + echo "The code will build, but it will produce a dummy version of htop" + echo "which shows no processes, using the files from the unsupported/" + echo "directory. This is meant to be a skeleton, to be used as a" + echo "starting point if you are porting htop to a new platform." + echo "****************************************************************" + echo "" +fi + +AC_MSG_RESULT([ + ${PACKAGE_NAME} ${VERSION} + + platform: $my_htop_platform + os-release file: $with_os_release + (Linux) proc directory: $with_proc + (Linux) openvz: $enable_openvz + (Linux) vserver: $enable_vserver + (Linux) ancient vserver: $enable_ancient_vserver + (Linux) delay accounting: $enable_delayacct + (Linux) sensors: $enable_sensors + (Linux) capabilities: $enable_capabilities + unicode: $enable_unicode + affinity: $enable_affinity + unwind: $enable_unwind + hwloc: $enable_hwloc + debug: $enable_debug + static: $enable_static +]) |