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-rw-r--r--config.mak.dev5
1 files changed, 5 insertions, 0 deletions
diff --git a/config.mak.dev b/config.mak.dev
index d4afac6b51..3deb076d5e 100644
--- a/config.mak.dev
+++ b/config.mak.dev
@@ -20,9 +20,14 @@ endif
endif
endif
+ifneq ($(uname_S),FreeBSD)
ifneq ($(or $(filter gcc6,$(COMPILER_FEATURES)),$(filter clang7,$(COMPILER_FEATURES))),)
DEVELOPER_CFLAGS += -std=gnu99
endif
+else
+# FreeBSD cannot limit to C99 because its system headers unconditionally
+# rely on C11 features.
+endif
DEVELOPER_CFLAGS += -Wdeclaration-after-statement
DEVELOPER_CFLAGS += -Wformat-security