diff options
Diffstat (limited to 'gl/m4/wcrtomb.m4')
| -rw-r--r-- | gl/m4/wcrtomb.m4 | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/gl/m4/wcrtomb.m4 b/gl/m4/wcrtomb.m4 index 6a2d772a..f56b5bae 100644 --- a/gl/m4/wcrtomb.m4 +++ b/gl/m4/wcrtomb.m4 @@ -1,5 +1,5 @@ -# wcrtomb.m4 serial 5 -dnl Copyright (C) 2008-2010 Free Software Foundation, Inc. +# wcrtomb.m4 serial 11 +dnl Copyright (C) 2008-2013 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,6 +14,22 @@ AC_DEFUN([gl_FUNC_WCRTOMB], AC_CHECK_FUNCS_ONCE([wcrtomb]) if test $ac_cv_func_wcrtomb = no; then HAVE_WCRTOMB=0 + AC_CHECK_DECLS([wcrtomb],,, [[ +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> +#include <wchar.h> +]]) + if test $ac_cv_have_decl_wcrtomb = yes; then + dnl On Minix 3.1.8, the system's <wchar.h> declares wcrtomb() although + dnl it does not have the function. Avoid a collision with gnulib's + dnl replacement. + REPLACE_WCRTOMB=1 + fi else if test $REPLACE_MBSTATE_T = 1; then REPLACE_WCRTOMB=1 @@ -40,35 +56,43 @@ changequote(,)dnl esac changequote([,])dnl if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then - AC_TRY_RUN([ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ #include <locale.h> -#include <stdio.h> #include <string.h> +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> #include <wchar.h> int main () { + int result = 0; if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) { if (wcrtomb (NULL, 0, NULL) != 1) - return 1; + result |= 1; } if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) { if (wcrtomb (NULL, 0, NULL) != 1) - return 1; + result |= 2; } if (setlocale (LC_ALL, "$LOCALE_JA") != NULL) { if (wcrtomb (NULL, 0, NULL) != 1) - return 1; + result |= 4; } if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) { if (wcrtomb (NULL, 0, NULL) != 1) - return 1; + result |= 8; } - return 0; -}], + return result; +}]])], [gl_cv_func_wcrtomb_retval=yes], [gl_cv_func_wcrtomb_retval=no], [:]) @@ -80,11 +104,6 @@ int main () esac fi fi - if test $HAVE_WCRTOMB = 0 || test $REPLACE_WCRTOMB = 1; then - gl_REPLACE_WCHAR_H - AC_LIBOBJ([wcrtomb]) - gl_PREREQ_WCRTOMB - fi ]) # Prerequisites of lib/wcrtomb.c. |