From: Jason Merrill <jason@redhat.com>
Date: Sat, 21 Sep 2024 17:30:31 +0000 (-0400)
Subject: libstdc++: guard c++config pragmas
X-Git-Tag: basepoints/gcc-16~5745
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=358db2e3ed4acf44282d1d9ebbc4a1a3b6e38d21;p=thirdparty%2Fgcc.git

libstdc++: guard c++config pragmas

c++config needs to be compilable as C, in which mode we complain about the
-Wc++ pragmas.

libstdc++-v3/ChangeLog:

	* include/bits/c++config: Don't try to disable -Wc++??-extensions
	when compiling as C.
---

diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index 66d03cfd037..16c67b80e76 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -34,8 +34,10 @@
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wvariadic-macros"
+#if __cplusplus
 #pragma GCC diagnostic ignored "-Wc++11-extensions"
 #pragma GCC diagnostic ignored "-Wc++23-extensions" // bf16
+#endif
 
 // The major release number for the GCC release the C++ library belongs to.
 #define _GLIBCXX_RELEASE