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-rw-r--r--gnu/lib/libsupc++/Makefile5
1 files changed, 3 insertions, 2 deletions
diff --git a/gnu/lib/libsupc++/Makefile b/gnu/lib/libsupc++/Makefile
index a172a6e..c7cc30e 100644
--- a/gnu/lib/libsupc++/Makefile
+++ b/gnu/lib/libsupc++/Makefile
@@ -51,8 +51,9 @@ CLEANFILES+= unwind.h
VERSION_MAP= ${.CURDIR}/Version.map
+CXXFLAGS.clang+= -stdlib=libstdc++
.include <bsd.lib.mk>
-CXXFLAGS.clang+= -stdlib=libstdc++
-CXXFLAGS+= -std=gnu++98
+# Filter out libc++-specific flags, and -std= flags above c++98 or gnu++98.
+CXXFLAGS:= ${CXXFLAGS:N-stdlib=libc++:N-std=c++[01][13x]:N-std=gnu++[01][13x]}
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