It's not like that will do much good for what Frotz does anyhow.
OPENBSD = yes
CFLAGS += -I/usr/local/include
LDFLAGS += -L/usr/local/lib
+ SDL_CFLAGS += -DSDL_DISABLE_IMMINTRIN_H
SDL_LDFLAGS += -lexecinfo
endif
ifeq ($(UNAME_S),Linux)
export PREFIX
export MANDIR
export SYSCONFDIR
+export SDL_CFLAGS
export COLOR
export SOUND
export NOSOUND
#CC = clang
PKG_CONFIG ?= pkg-config
-override CFLAGS += $(shell $(PKG_CONFIG) $(SDL_PKGS) --cflags)
+override CFLAGS += $(shell $(PKG_CONFIG) $(SDL_PKGS) --cflags) $(SDL_CFLAGS)
SOURCES = sf_fonts.c sf_msg_en.c sf_resource.c sf_util.c \
sf_deffont.c sf_ftype.c sf_osfdlg.c sf_sig.c sf_video.c \