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coreutils/m4/strerror_r.m4
2000-06-24 14:03:10 +00:00

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#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_DECLS([strerror_r])
AC_CHECK_FUNCS([strerror_r])
if test $ac_cv_func_strerror_r = yes; then
AC_CHECK_HEADERS(string.h)
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