[gcc r12-10747] libstdc++: Define __glibcxx_assert_fail for non-verbose build [PR115585]

[Jonathan Wakely]

https://gcc.gnu.org/g:c4d2f51741bbb1771219fbeaaf812fa73c36fc0f

commit r12-10747-gc4d2f51741bbb1771219fbeaaf812fa73c36fc0f
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Jun 28 15:14:15 2024 +0100

    libstdc++: Define __glibcxx_assert_fail for non-verbose build [PR115585]
    
    When the library is configured with --disable-libstdcxx-verbose the
    assertions just abort instead of calling __glibcxx_assert_fail, and so I
    didn't export that function for the non-verbose build. However, that
    option is documented to not change the library ABI, so we still need to
    export the symbol from the library. It could be needed by programs
    compiled against the headers from a verbose build.
    
    The non-verbose definition can just call abort so that it doesn't pull
    in I/O symbols, which are unwanted in a non-verbose build.
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/115585
            * src/c++11/assert_fail.cc (__glibcxx_assert_fail): Add
            definition for non-verbose builds.
    
    (cherry picked from commit 52370c839edd04df86d3ff2b71fcdca0c7376a7f)

Diff:
---
 libstdc++-v3/src/c++11/assert_fail.cc | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/libstdc++-v3/src/c++11/assert_fail.cc b/libstdc++-v3/src/c++11/assert_fail.cc
index 540e953da2e8..774ffa701189 100644
--- a/libstdc++-v3/src/c++11/assert_fail.cc
+++ b/libstdc++-v3/src/c++11/assert_fail.cc
@@ -22,10 +22,10 @@
 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 // <http://www.gnu.org/licenses/>.
 
-#include <cstdio>	// for std::fprintf, stderr
 #include <cstdlib>	// for std::abort
 
 #ifdef _GLIBCXX_VERBOSE_ASSERT
+#include <cstdio>	// for std::fprintf, stderr
 namespace std
 {
   [[__noreturn__]]
@@ -41,4 +41,12 @@ namespace std
     abort();
   }
 }
+#else
+namespace std
+{
+  [[__noreturn__]]
+  void
+  __glibcxx_assert_fail(const char*, int, const char*, const char*) noexcept
+  { abort(); }
+}
 #endif