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| author | Jim Meyering <jim@meyering.net> | 2001-08-04 17:00:11 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 2001-08-04 17:00:11 +0000 |
| commit | 06f3a965158f185a4cfafe55e297c6a3f5552737 (patch) | |
| tree | 238269e569a4a8d894488761a20915cd968f1342 /m4/mbswidth.m4 | |
| parent | 847f8d0124e7f039c28af8a4b21ebea57a58fd0f (diff) | |
| download | coreutils-06f3a965158f185a4cfafe55e297c6a3f5552737.tar.xz | |
(jm_PREREQ_MBSWIDTH): No longer requires AM_C_PROTOTYPES.
Check for iswcntrl, mbsinit. Use AC_TRY_COMPILE, not AC_CHECK_DECLS,
for portability to Autoconf 2.13.
Diffstat (limited to 'm4/mbswidth.m4')
| -rw-r--r-- | m4/mbswidth.m4 | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/m4/mbswidth.m4 b/m4/mbswidth.m4 index 085c8849c..26f661f64 100644 --- a/m4/mbswidth.m4 +++ b/m4/mbswidth.m4 @@ -1,4 +1,4 @@ -#serial 4 +#serial 5 dnl autoconf tests required for use of mbswidth.c dnl From Bruno Haible. @@ -6,15 +6,31 @@ dnl From Bruno Haible. AC_DEFUN(jm_PREREQ_MBSWIDTH, [ AC_REQUIRE([AC_HEADER_STDC]) - AC_REQUIRE([AM_C_PROTOTYPES]) AC_CHECK_HEADERS(limits.h stdlib.h string.h wchar.h wctype.h) - AC_CHECK_FUNCS(isascii iswprint wcwidth) + AC_CHECK_FUNCS(isascii iswcntrl iswprint mbsinit wcwidth) jm_FUNC_MBRTOWC - headers=' -# if HAVE_WCHAR_H -# include <wchar.h> -# endif -' - AC_CHECK_DECLS([wcwidth], , , $headers) + + AC_CACHE_CHECK([whether wcwidth is declared], ac_cv_have_decl_wcwidth, + [AC_TRY_COMPILE([ +/* AIX 3.2.5 declares wcwidth in <string.h>. */ +#if HAVE_STRING_H +# include <string.h> +#endif +#if HAVE_WCHAR_H +# include <wchar.h> +#endif +], [ +#ifndef wcwidth + char *p = (char *) wcwidth; +#endif +], ac_cv_have_decl_wcwidth=yes, ac_cv_have_decl_wcwidth=no)]) + if test $ac_cv_have_decl_wcwidth = yes; then + ac_val=1 + else + ac_val=0 + fi + AC_DEFINE_UNQUOTED(HAVE_DECL_WCWIDTH, $ac_val, + [Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.]) + AC_MBSTATE_T ]) |