From 3e6cf7a7b29698b69f96e848f84196aeda57b4a4 Mon Sep 17 00:00:00 2001
From: Benjamin Beasley <code@musicinmybrain.net>
Date: Tue, 20 Oct 2020 14:35:42 -0400
Subject: Add support for external CPPFLAGS/CFLAGS to the Makefile

---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 2f644f2..173394b 100644
--- a/Makefile
+++ b/Makefile
@@ -3,10 +3,10 @@ FILES=zopfli/blocksplitter.c zopfli/cache.c zopfli/deflate.c zopfli/gzip_contain
 all: sfnt2woff-zopfli woff2sfnt-zopfli
 
 sfnt2woff-zopfli: sfnt2woff.c $(FILES) Makefile
-	$(CC) -Izopfli $(LDFLAGS) $(FILES) $< -o $@ -lz -lm
+	$(CC) $(CPPFLAGS) $(CFLAGS) -Izopfli $(LDFLAGS) $(FILES) $< -o $@ -lz -lm
 
 woff2sfnt-zopfli: woff2sfnt.c $(FILES) Makefile
-	$(CC) -Izopfli $(LDFLAGS) $(FILES) $< -o $@ -lz -lm
+	$(CC) $(CPPFLAGS) $(CFLAGS) -Izopfli $(LDFLAGS) $(FILES) $< -o $@ -lz -lm
 
 clean:
 	$(RM) -r *.o *.dSYM sfnt2woff-zopfli woff2sfnt-zopfli *.gch *.out
-- 
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