diff --git a/make/defs.mk b/make/defs.mk
index 9bb96a2e..f26b0dfa 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -116,6 +116,10 @@ else
 endif
 endif
 
+BUILD_CFLAGS          += $(CFLAGS)
+BUILD_CPPFLAGS        += $(CPPFLAGS)
+BUILD_LDFLAGS         += $(LDFLAGS)
+
 BUILD_CFLAGS          += -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value -fexceptions -DPROJECT_STR=\"$(PROJECT)\"
 BUILD_CPPFLAGS        += -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value -Wno-deprecated -DPROJECT_STR=\"$(PROJECT)\"
 BUILD_LDFLAGS         += -Wall