Bump to m4 1.4.19

[platform/upstream/m4.git] / lib / error.h

diff --git a/lib/error.h b/lib/error.h
index afcb0e1..f65d072 100644 (file)
--- a/lib/error.h
+++ b/lib/error.h
@@ -1,5 +1,5 @@
 /* Declaration for error-reporting function
-   Copyright (C) 1995-1997, 2003, 2006, 2008-2013 Free Software Foundation,
+   Copyright (C) 1995-1997, 2003, 2006, 2008-2021 Free Software Foundation,
    Inc.
    This file is part of the GNU C Library.
 
@@ -14,22 +14,13 @@
    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, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef _ERROR_H
 #define _ERROR_H 1
 
-/* The __attribute__ feature is available in gcc versions 2.5 and later.
-   The __-protected variants of the attributes 'format' and 'printf' are
-   accepted by gcc versions 2.6.4 (effectively 2.7) and later.
-   We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
-   gnulib and libintl do '#define printf __printf__' when they override
-   the 'printf' function.  */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
-# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
-#else
-# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
-#endif
+/* Get _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM.  */
+#include <stdio.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -40,11 +31,21 @@ extern "C" {
    If STATUS is nonzero, terminate the program with 'exit (STATUS)'.  */
 
 extern void error (int __status, int __errnum, const char *__format, ...)
-     _GL_ATTRIBUTE_FORMAT ((__printf__, 3, 4));
+#if GNULIB_VFPRINTF_POSIX
+     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 3, 4))
+#else
+     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, 3, 4))
+#endif
+     ;
 
 extern void error_at_line (int __status, int __errnum, const char *__fname,
                            unsigned int __lineno, const char *__format, ...)
-     _GL_ATTRIBUTE_FORMAT ((__printf__, 5, 6));
+#if GNULIB_VFPRINTF_POSIX
+     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 5, 6))
+#else
+     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, 5, 6))
+#endif
+     ;
 
 /* If NULL, error will flush stdout, then print on stderr the program
    name, a colon and a space.  Otherwise, error will call this