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Diffstat (limited to 'gl/m4/fnmatch.m4')
| -rw-r--r-- | gl/m4/fnmatch.m4 | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/gl/m4/fnmatch.m4 b/gl/m4/fnmatch.m4 new file mode 100644 index 0000000..eba70de --- /dev/null +++ b/gl/m4/fnmatch.m4 @@ -0,0 +1,180 @@ +# Check for fnmatch - serial 17 -*- coding: utf-8 -*- + +# Copyright (C) 2000-2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Autoconf defines AC_FUNC_FNMATCH, but that is obsolescent. +# New applications should use the macros below instead. + +# Request a POSIX compliant fnmatch function. +AC_DEFUN([gl_FUNC_FNMATCH_POSIX], +[ + m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX]) + + AC_REQUIRE([gl_FNMATCH_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + gl_fnmatch_required_lowercase=` + echo $gl_fnmatch_required | LC_ALL=C tr '[[A-Z]]' '[[a-z]]' + ` + AC_CHECK_FUNCS_ONCE([fnmatch]) + if test $ac_cv_func_fnmatch = no; then + HAVE_FNMATCH=0 + else + gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}" + AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch], + [$gl_fnmatch_cache_var], + [dnl Some versions of Solaris, SCO, and the GNU C Library + dnl have a broken or incompatible fnmatch. + dnl So we run a test program. If we are cross-compiling, take no chance. + dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this + dnl test. + if test $gl_fnmatch_required = GNU; then + gl_fnmatch_gnu_start= + gl_fnmatch_gnu_end= + else + gl_fnmatch_gnu_start='#if 0' + gl_fnmatch_gnu_end='#endif' + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <fnmatch.h> + #include <locale.h> + #include <stddef.h> + static int + y (char const *pattern, char const *string, int flags) + { + return fnmatch (pattern, string, flags) == 0; + } + static int + n (char const *pattern, char const *string, int flags) + { + return fnmatch (pattern, string, flags) == FNM_NOMATCH; + } + ]], + [[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]"; + char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]"; + static char const A_1[] = { 'A' - 1, 0 }; + static char const A01[] = { 'A' + 1, 0 }; + static char const a_1[] = { 'a' - 1, 0 }; + static char const a01[] = { 'a' + 1, 0 }; + static char const bs_1[] = { '\\\\' - 1, 0 }; + static char const bs01[] = { '\\\\' + 1, 0 }; + int result = 0; + /* ==== Start of tests in the "C" locale ==== */ + /* These are sanity checks. They all succeed on current platforms. */ + if (!n ("a*", "", 0)) + return 1; + if (!y ("a*", "abc", 0)) + return 1; + if (!n ("d*/*1", "d/s/1", FNM_PATHNAME)) + return 1; + if (!y ("a\\\\bc", "abc", 0)) + return 1; + if (!n ("a\\\\bc", "abc", FNM_NOESCAPE)) + return 1; + if (!y ("*x", ".x", 0)) + return 1; + if (!n ("*x", ".x", FNM_PERIOD)) + return 1; + /* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=361> + exists in glibc 2.3.3, fixed in glibc 2.5. */ + if (!y (Apat, "\\\\", 0)) + result |= 2; + if (!y (Apat, "A", 0)) + result |= 2; + if (!y (apat, "\\\\", 0)) + result |= 2; + if (!y (apat, "a", 0)) + result |= 2; + if (!(n (Apat, A_1, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(n (apat, a_1, 0) == ('a' < '\\\\'))) + result |= 2; + if (!(y (Apat, A01, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(y (apat, a01, 0) == ('a' < '\\\\'))) + result |= 2; + if (!(y (Apat, bs_1, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(y (apat, bs_1, 0) == ('a' < '\\\\'))) + result |= 2; + if (!(n (Apat, bs01, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(n (apat, bs01, 0) == ('a' < '\\\\'))) + result |= 2; + /* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=12378> + exists in glibc 2.12, fixed in glibc 2.13. */ + if (!y ("[/b", "[/b", 0)) /*"]]"*/ + result |= 4; + /* This test fails on FreeBSD 13.2, NetBSD 9.3, Cygwin 3.4.6. */ + if (!y ("[[:alnum:]]", "a", 0)) + result |= 8; + $gl_fnmatch_gnu_start /* ==== Start of GNU extensions tests ==== */ + /* Sanity checks, mainly to check the presence of the FNM_* macros. */ + if (!y ("xxXX", "xXxX", FNM_CASEFOLD)) + result |= 64; + if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)) + result |= 64; + if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME)) + result |= 64; + if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + $gl_fnmatch_gnu_end /* ==== End of GNU extensions tests ==== */ + /* ==== End of tests in the "C" locale ==== */ + /* ==== Start of tests that require a specific locale ==== */ + /* This test fails on Solaris 11.4. */ + if (setlocale (LC_ALL, "en_US.UTF-8") != NULL) + { + if (!n ("[!a-z]", "", 0)) + result |= 16; + } + /* This test fails on NetBSD 9.3, Android 13. */ + if (setlocale (LC_ALL, "C.UTF-8") != NULL) + { + if (!y ("x?y", "x\\303\\274y", 0)) + result |= 32; + } + /* ==== End of tests that require a specific locale ==== */ + return result; + ]])], + [eval "$gl_fnmatch_cache_var=yes"], + [eval "$gl_fnmatch_cache_var=no"], + [case "$host_os" in + # Guess yes on musl systems. + *-musl* | midipix*) eval "$gl_fnmatch_cache_var=\"guessing yes\"" ;; + # Guess no otherwise, even on glibc systems. + *) eval "$gl_fnmatch_cache_var=\"guessing no\"" ;; + esac + ]) + ]) + eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\"" + case "$gl_fnmatch_result" in + *yes) ;; + *) REPLACE_FNMATCH=1 ;; + esac + fi + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then + gl_REPLACE_FNMATCH_H + fi +]) + +# Request a POSIX compliant fnmatch function with GNU extensions. +AC_DEFUN([gl_FUNC_FNMATCH_GNU], +[ + m4_divert_text([INIT_PREPARE], [gl_fnmatch_required=GNU]) + + AC_REQUIRE([gl_FUNC_FNMATCH_POSIX]) +]) + +AC_DEFUN([gl_PREREQ_FNMATCH], +[ + dnl Prerequisites of lib/fnmatch.c. + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + AC_CHECK_FUNCS_ONCE([mbsrtowcs]) +]) |