From: Jonathan Wakely <jwakely@redhat.com>
Date: Wed, 1 Nov 2023 14:20:33 +0000 (+0000)
Subject: libstdc++: Fix warning during configure
X-Git-Tag: releases/gcc-12.4.0~336
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=96e7603bf662010d282d739841c133e0723a2d39;p=thirdparty%2Fgcc.git

libstdc++: Fix warning during configure

The checks for snprintf give a -Wformat warning due to a missing
argument.

libstdc++-v3/ChangeLog:

	* acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
	* configure: Regenerate.

(cherry picked from commit 8a4cde6319b40802a842a8fe71267524dd8af828)
---

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 321065aff726..c25e8a706388 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -978,7 +978,7 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
            vscanf("%i", args);
            vsnprintf(fmt, 0, "%i", args);
            vsscanf(fmt, "%i", args);
-           snprintf(fmt, 0, "%i");
+           snprintf(fmt, 0, "%i", 1);
          }], [],
         [glibcxx_cv_c99_stdio_cxx98=yes], [glibcxx_cv_c99_stdio_cxx98=no])
     ])
@@ -1210,7 +1210,7 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
            vscanf("%i", args);
            vsnprintf(fmt, 0, "%i", args);
            vsscanf(fmt, "%i", args);
-           snprintf(fmt, 0, "%i");
+           snprintf(fmt, 0, "%i", 1);
          }], [],
         [glibcxx_cv_c99_stdio_cxx11=yes], [glibcxx_cv_c99_stdio_cxx11=no])
     ])
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index b371f422ff3d..67cae65c533c 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -17573,7 +17573,7 @@ else
            vscanf("%i", args);
            vsnprintf(fmt, 0, "%i", args);
            vsscanf(fmt, "%i", args);
-           snprintf(fmt, 0, "%i");
+           snprintf(fmt, 0, "%i", 1);
          }
 int
 main ()
@@ -17604,7 +17604,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
            vscanf("%i", args);
            vsnprintf(fmt, 0, "%i", args);
            vsscanf(fmt, "%i", args);
-           snprintf(fmt, 0, "%i");
+           snprintf(fmt, 0, "%i", 1);
          }
 int
 main ()
@@ -18249,7 +18249,7 @@ else
            vscanf("%i", args);
            vsnprintf(fmt, 0, "%i", args);
            vsscanf(fmt, "%i", args);
-           snprintf(fmt, 0, "%i");
+           snprintf(fmt, 0, "%i", 1);
          }
 int
 main ()
@@ -18280,7 +18280,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
            vscanf("%i", args);
            vsnprintf(fmt, 0, "%i", args);
            vsscanf(fmt, "%i", args);
-           snprintf(fmt, 0, "%i");
+           snprintf(fmt, 0, "%i", 1);
          }
 int
 main ()