Update error.c from gnulib.

1 files changed, 59 insertions, 0 deletions

diff --git a/gettext-tools/m4/strerror_r.m4 b/gettext-tools/m4/strerror_r.m4
new file mode 100644
index 0000000..bd28635
--- /dev/null
+++ b/gettext-tools/m4/strerror_r.m4
@@ -0,0 +1,59 @@
+#serial 1003
+# Experimental replacement for the function in the latest CVS autoconf.
+# Use with the error.c file in ../lib.
+
+# Copyright 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+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])
+AC_CACHE_CHECK([whether strerror_r returns char *],
+               ac_cv_func_strerror_r_char_p,
+   [
+    ac_cv_func_strerror_r_char_p=no
+    if test $ac_cv_have_decl_strerror_r = yes; then
+      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+	[[
+	  char buf[100];
+	  char x = *strerror_r (0, buf, sizeof buf);
+	  char *p = strerror_r (0, buf, sizeof buf);
+	]])],
+			ac_cv_func_strerror_r_char_p=yes)
+    else
+      # strerror_r is not declared.  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_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+	extern char *strerror_r ();],
+	[[char buf[100];
+	  char x = *strerror_r (0, buf, sizeof buf);
+	  exit (!isalpha (x));]])],
+                    ac_cv_func_strerror_r_char_p=yes, , :)
+    fi
+  ])
+if test $ac_cv_func_strerror_r_char_p = yes; then
+  AC_DEFINE([STRERROR_R_CHAR_P], 1,
+	    [Define to 1 if strerror_r returns char *.])
+fi
+])# AC_FUNC_STRERROR_R