1 # wctob.m4 serial 4 2 dnl Copyright (C) 2008-2009 Free Software Foundation, Inc. 3 dnl This file is free software; the Free Software Foundation 4 dnl gives unlimited permission to copy and/or distribute it, 5 dnl with or without modifications, as long as this notice is preserved. 6 7 AC_DEFUN([gl_FUNC_WCTOB], 8 [ 9 AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) 10 11 AC_CHECK_FUNCS_ONCE([wctob]) 12 if test $ac_cv_func_wctob = no; then 13 HAVE_DECL_WCTOB=0 14 gl_REPLACE_WCHAR_H 15 AC_LIBOBJ([wctob]) 16 gl_PREREQ_WCTOB 17 else 18 19 dnl Solaris 9 has the wctob() function but it does not work. 20 AC_REQUIRE([AC_PROG_CC]) 21 AC_REQUIRE([gt_LOCALE_FR]) 22 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles 23 AC_CACHE_CHECK([whether wctob works], 24 [gl_cv_func_wctob_works], 25 [ 26 dnl Initial guess, used when cross-compiling or when no suitable locale 27 dnl is present. 28 changequote(,)dnl 29 case "$host_os" in 30 # Guess no on Solaris <= 9. 31 solaris2.[1-9] | solaris2.[1-9].*) 32 gl_cv_func_wctob_works="guessing no" ;; 33 # Guess yes otherwise. 34 *) gl_cv_func_wctob_works="guessing yes" ;; 35 esac 36 changequote([,])dnl 37 if test $LOCALE_FR != none; then 38 AC_TRY_RUN([ 39 #include <locale.h> 40 #include <string.h> 41 #include <wchar.h> 42 int main () 43 { 44 if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) 45 { 46 wchar_t wc; 47 48 if (mbtowc (&wc, "\374", 1) == 1) 49 if (wctob (wc) != (unsigned char) '\374') 50 return 1; 51 } 52 return 0; 53 }], 54 [gl_cv_func_wctob_works=yes], 55 [gl_cv_func_wctob_works=no], 56 [:]) 57 fi 58 ]) 59 case "$gl_cv_func_wctob_works" in 60 *yes) ;; 61 *) REPLACE_WCTOB=1 ;; 62 esac 63 if test $REPLACE_WCTOB = 1; then 64 gl_REPLACE_WCHAR_H 65 AC_LIBOBJ([wctob]) 66 gl_PREREQ_WCTOB 67 else 68 69 dnl IRIX 6.5 has the wctob() function but does not declare it. 70 AC_CHECK_DECLS([wctob], [], [], [ 71 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before 72 <wchar.h>. 73 BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included 74 before <wchar.h>. */ 75 #include <stddef.h> 76 #include <stdio.h> 77 #include <time.h> 78 #include <wchar.h> 79 ]) 80 if test $ac_cv_have_decl_wctob != yes; then 81 HAVE_DECL_WCTOB=0 82 gl_REPLACE_WCHAR_H 83 fi 84 fi 85 fi 86 ]) 87 88 # Prerequisites of lib/wctob.c. 89 AC_DEFUN([gl_PREREQ_WCTOB], [ 90 : 91 ]) 92
