Mercurial > gnulib
changeset 2645:675646a3a337
Revive this file -- to try out an experimental
version of AC_FUNC_STRERROR_R that may work even on BeOS, a system
for which strerror does return char*, but which lacks a conveniently
accessible declaration of the function.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Sat, 24 Jun 2000 12:05:08 +0000 |
| parents | 0e276268fc94 |
| children | 8fde895c48c0 |
| files | m4/strerror_r.m4 |
| diffstat | 1 files changed, 44 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/m4/strerror_r.m4 Sat Jun 24 12:05:08 2000 +0000 @@ -0,0 +1,44 @@ +#serial 1000 +# Experimental replacement for the function in the latest CVS autoconf. +# Use with the error.c file in ../lib. + +undefine([AC_FUNC_STRERROR_R]) + +# AC_FUNC_STRERROR_R +# ------------------ +AC_DEFUN([AC_FUNC_STRERROR_R], +[# Check strerror_r +AC_CHECK_FUNCS([strerror_r]) +if test $ac_cv_func_strerror_r = yes; then + AC_CHECK_HEADERS(string.h) + AC_CHECK_DECLS([strerror_r]) + AC_CACHE_CHECK([for working strerror_r], + ac_cv_func_strerror_r_works, + [ + AC_TRY_COMPILE( + [ +# include <stdio.h> +# if HAVE_STRING_H +# include <string.h> +# endif +#ifndef HAVE_DECL_STRERROR_R +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRERROR_R +char *strerror_r (); +#endif + ], + [ + char buf; + char x = *strerror_r (0, &buf, sizeof buf); + ], + ac_cv_func_strerror_r_works=yes, + ac_cv_func_strerror_r_works=no + ) + if test $ac_cv_func_strerror_r_works = yes; then + AC_DEFINE_UNQUOTED(HAVE_WORKING_STRERROR_R, 1, + [Define to 1 if `strerror_r' returns a string.]) + fi + ]) +fi +])# AC_FUNC_STRERROR_R