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build/pkg/tc-gcc1/0002.patch
David Oberhollenzer 8063550d4e Add libc agnostic fortify-headers package
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
2018-10-17 01:11:02 +02:00

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diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c
index 3fc4fa9..2c502be 100644
--- a/gcc/c-family/c-cppbuiltin.c
+++ b/gcc/c-family/c-cppbuiltin.c
@@ -1342,6 +1342,9 @@ c_cpp_builtins (cpp_reader *pfile)
builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ /* Fortify Source enabled by default w/optimization. */
+ cpp_define (pfile, "_FORTIFY_SOURCE=((defined __OPTIMIZE__ && __OPTIMIZE__ > 0) ? 2 : 0)");
+
/* Misc. */
if (flag_gnu89_inline)
cpp_define (pfile, "__GNUC_GNU_INLINE__");