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      1 # Check for fnmatch.
      2 
      3 # This is a modified version of autoconf's AC_FUNC_FNMATCH.
      4 # This file should be simplified after Autoconf 2.57 is required.
      5 
      6 # Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
      7 # This file is free software; the Free Software Foundation
      8 # gives unlimited permission to copy and/or distribute it,
      9 # with or without modifications, as long as this notice is preserved.
     10 
     11 # _AC_FUNC_FNMATCH_IF(STANDARD = GNU | POSIX, CACHE_VAR, IF-TRUE, IF-FALSE)
     12 # -------------------------------------------------------------------------
     13 # If a STANDARD compliant fnmatch is found, run IF-TRUE, otherwise
     14 # IF-FALSE.  Use CACHE_VAR.
     15 AC_DEFUN([_AC_FUNC_FNMATCH_IF],
     16 [AC_CACHE_CHECK(
     17    [for working $1 fnmatch],
     18    [$2],
     19   [dnl Some versions of Solaris, SCO, and the GNU C Library
     20    dnl have a broken or incompatible fnmatch.
     21    dnl So we run a test program.  If we are cross-compiling, take no chance.
     22    dnl Thanks to John Oleynick, Franois Pinard, and Paul Eggert for this test.
     23    AC_RUN_IFELSE(
     24       [AC_LANG_PROGRAM(
     25 	 [
     26 #	   include <stdlib.h>
     27 #	   include <fnmatch.h>
     28 #	   define y(a, b, c) (fnmatch (a, b, c) == 0)
     29 #	   define n(a, b, c) (fnmatch (a, b, c) == FNM_NOMATCH)
     30          ],
     31 	 [exit
     32 	   (!(y ("a*", "abc", 0)
     33 	      && n ("d*/*1", "d/s/1", FNM_PATHNAME)
     34 	      && y ("a\\\\bc", "abc", 0)
     35 	      && n ("a\\\\bc", "abc", FNM_NOESCAPE)
     36 	      && y ("*x", ".x", 0)
     37 	      && n ("*x", ".x", FNM_PERIOD)
     38 	      && m4_if([$1], [GNU],
     39 		   [y ("xxXX", "xXxX", FNM_CASEFOLD)
     40 		    && y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)
     41 		    && n ("d*/*1", "d/s/1", FNM_FILE_NAME)
     42 		    && y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)
     43 		    && y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)
     44 		    && y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)],
     45 		   1)));])],
     46       [$2=yes],
     47       [$2=no],
     48       [$2=cross])])
     49 AS_IF([test $$2 = yes], [$3], [$4])
     50 ])# _AC_FUNC_FNMATCH_IF
     51 
     52 
     53 # _AC_LIBOBJ_FNMATCH
     54 # ------------------
     55 # Prepare the replacement of fnmatch.
     56 AC_DEFUN([_AC_LIBOBJ_FNMATCH],
     57 [AC_REQUIRE([AC_C_CONST])dnl
     58 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
     59 AC_REQUIRE([AC_TYPE_MBSTATE_T])dnl
     60 AC_CHECK_DECLS([getenv])
     61 AC_CHECK_FUNCS([btowc mbsrtowcs mempcpy wmemchr wmemcpy wmempcpy])
     62 AC_CHECK_HEADERS([wchar.h wctype.h])
     63 AC_LIBOBJ([fnmatch])
     64 FNMATCH_H=fnmatch.h
     65 ])# _AC_LIBOBJ_FNMATCH
     66 
     67 
     68 AC_DEFUN([gl_FUNC_FNMATCH_POSIX],
     69 [
     70   FNMATCH_H=
     71   _AC_FUNC_FNMATCH_IF([POSIX], [ac_cv_func_fnmatch_posix],
     72                       [rm -f lib/fnmatch.h],
     73                       [_AC_LIBOBJ_FNMATCH])
     74   if test $ac_cv_func_fnmatch_posix != yes; then
     75     dnl We must choose a different name for our function, since on ELF systems
     76     dnl a broken fnmatch() in libc.so would override our fnmatch() if it is
     77     dnl compiled into a shared library.
     78     AC_DEFINE([fnmatch], [posix_fnmatch],
     79       [Define to a replacement function name for fnmatch().])
     80   fi
     81   AC_SUBST([FNMATCH_H])
     82 ])
     83 
     84 
     85 AC_DEFUN([gl_FUNC_FNMATCH_GNU],
     86 [
     87   dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc.
     88   AC_REQUIRE([AC_GNU_SOURCE])
     89 
     90   FNMATCH_H=
     91   _AC_FUNC_FNMATCH_IF([GNU], [ac_cv_func_fnmatch_gnu],
     92                       [rm -f lib/fnmatch.h],
     93                       [_AC_LIBOBJ_FNMATCH])
     94   if test $ac_cv_func_fnmatch_gnu != yes; then
     95     dnl We must choose a different name for our function, since on ELF systems
     96     dnl a broken fnmatch() in libc.so would override our fnmatch() if it is
     97     dnl compiled into a shared library.
     98     AC_DEFINE([fnmatch], [gnu_fnmatch],
     99       [Define to a replacement function name for fnmatch().])
    100   fi
    101   AC_SUBST([FNMATCH_H])
    102 ])
    103