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-rw-r--r--gnu/gcc/gcc/common.opt2
-rw-r--r--gnu/usr.bin/gcc/gcc/toplev.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/gnu/gcc/gcc/common.opt b/gnu/gcc/gcc/common.opt
index 57f7ed1a713..d0d861169e5 100644
--- a/gnu/gcc/gcc/common.opt
+++ b/gnu/gcc/gcc/common.opt
@@ -158,7 +158,7 @@ Common Var(warn_switch_enum)
Warn about all enumerated switches missing a specific case
Wsystem-headers
-Common Var(warn_system_headers)
+Common Var(warn_system_headers) Init(1)
Do not suppress warnings from system headers
Wuninitialized
diff --git a/gnu/usr.bin/gcc/gcc/toplev.c b/gnu/usr.bin/gcc/gcc/toplev.c
index 0964afb0c00..4638a371856 100644
--- a/gnu/usr.bin/gcc/gcc/toplev.c
+++ b/gnu/usr.bin/gcc/gcc/toplev.c
@@ -1446,7 +1446,7 @@ int inhibit_warnings = 0;
/* Don't suppress warnings from system headers. -Wsystem-headers. */
-int warn_system_headers = 0;
+int warn_system_headers = 1;
/* Print various extra warnings. -W. */