--- Library.tmpl.orig	2021-08-02 01:00:38 UTC
+++ Library.tmpl
@@ -114,7 +114,7 @@ SHLIBGLOBALSFLAGS = ShlibGlobalsFlags
 STD_DEFINES = LibraryDefines $(PROJECT_DEFINES)
 CDEBUGFLAGS = LibraryCDebugFlags
 CLIBDEBUGFLAGS = LibraryDebugOpt
-     CFLAGS = $(CDEBUGFLAGS) $(CLIBDEBUGFLAGS) $(CCOPTIONS) $(THREADS_CFLAGS) $(ALLDEFINES)
+     CFLAGS += $(CDEBUGFLAGS) $(CLIBDEBUGFLAGS) $(CCOPTIONS) $(THREADS_CFLAGS) $(ALLDEFINES)
 # if defined(LargePICTable) && LargePICTable && defined(LargePositionIndependentCFlags)
    PICFLAGS = LargePositionIndependentCFlags
 # endif