13.3.0/gentoo/15_all_DEF_GENTOO_GLIBCXX_ASSERTIONS.patch


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https://bugs.gentoo.org/876895
--- a/gcc/c-family/c-cppbuiltin.cc
+++ b/gcc/c-family/c-cppbuiltin.cc
@@ -957,6 +957,10 @@ c_cpp_builtins (cpp_reader *pfile)
 	  cpp_define (pfile, "__cpp_rtti=199711L");
 	}
 
+      #ifdef DEF_GENTOO_GLIBCXX_ASSERTIONS
+	  cpp_define (pfile, "_GLIBCXX_ASSERTIONS");
+      #endif
+
       if (cxx_dialect >= cxx11)
         cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");