Index: share/mk/bsd.lib.mk
===================================================================
--- share/mk/bsd.lib.mk
+++ share/mk/bsd.lib.mk
@@ -114,11 +114,11 @@
 .if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
     empty(DEBUG_FLAGS:M-gdwarf*)
 .if !${COMPILER_FEATURES:Mcompressed-debug}
-CFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
-CXXFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
+SHARED_CFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
+SHARED_CXXFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
 .else
-CFLAGS+= ${DEBUG_FILES_CFLAGS}
-CXXFLAGS+= ${DEBUG_FILES_CFLAGS}
+SHARED_CFLAGS+= ${DEBUG_FILES_CFLAGS}
+SHARED_CXXFLAGS+= ${DEBUG_FILES_CFLAGS}
 .endif
 CTFFLAGS+= -g
 .endif