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* m4/strerror_r.m4: New.

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* m4/error.m4: Run AC_FUNC_STRERROR_R.
* lib/error.h, lib/error.c: Update.
This commit is contained in:
Akim Demaille
2001-03-16 14:50:40 +00:00
parent 447992b9f1
commit 5141b01619
13 changed files with 1626 additions and 1225 deletions
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92
aclocal.m4 vendored
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@@ -423,6 +423,86 @@ AC_DEFUN(AC_MBSTATE_T,
[Define to a type if <wchar.h> does not define.])
fi])
#serial 1
dnl FIXME: put these prerequisite-only *.m4 files in a separate
dnl directory -- otherwise, they'll conflict with existing files.
dnl These are the prerequisite macros for GNU's error.c file.
AC_DEFUN(jm_PREREQ_ERROR,
[
AC_CHECK_FUNCS(strerror strerror_r vprintf doprnt)
AC_HEADER_STDC
AC_FUNC_STRERROR_R
])
#serial 1002
# Experimental replacement for the function in the latest CVS autoconf.
# If the compile-test says strerror_r doesn't work, then resort to a
# `run'-test that works on BeOS and segfaults on DEC Unix.
# Use with the error.c file in ../lib.
undefine([AC_FUNC_STRERROR_R])
# AC_FUNC_STRERROR_R
# ------------------
AC_DEFUN([AC_FUNC_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
],
[
char buf[100];
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 = no; then
# strerror_r seems not to work, but now we have to choose between
# systems that have relatively inaccessible declarations for the
# function. BeOS and DEC UNIX 4.0 fall in this category, but the
# former has a strerror_r that returns char*, while the latter
# has a strerror_r that returns `int'.
# This test should segfault on the DEC system.
AC_TRY_RUN(
[
# include <stdio.h>
# include <string.h>
# include <ctype.h>
extern char *strerror_r ();
int
main ()
{
char buf[100];
char x = *strerror_r (0, buf, sizeof buf);
exit (!isalpha (x));
}
],
ac_cv_func_strerror_r_works=yes,
ac_cv_func_strerror_r_works=no,
ac_cv_func_strerror_r_works=no)
fi
])
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
# Macro to add for using GNU gettext.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
@@ -813,15 +893,3 @@ AC_DEFUN(AM_LC_MESSAGES,
fi
fi])
#serial 1
dnl FIXME: put these prerequisite-only *.m4 files in a separate
dnl directory -- otherwise, they'll conflict with existing files.
dnl These are the prerequisite macros for GNU's error.c file.
AC_DEFUN(jm_PREREQ_ERROR,
[
AC_CHECK_FUNCS(strerror strerror_r vprintf doprnt)
AC_HEADER_STDC
])