From e2e5e98bcd0badcd437b8a67aa0986ed6d6678a9 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Fri, 5 Jul 2019 20:31:33 -0700
Subject: Use a separate preprocessor rule

Otherwise, we end up passing both -c and -E to the compiler.
---
 pkg/libpng/gen.lua | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'pkg/libpng')

diff --git a/pkg/libpng/gen.lua b/pkg/libpng/gen.lua
index 1d105ce6..d0432efd 100644
--- a/pkg/libpng/gen.lua
+++ b/pkg/libpng/gen.lua
@@ -14,9 +14,7 @@ build('awk', '$outdir/pnglibconf.tf4', {
 build('awk', '$outdir/pnglibconf.c', '$outdir/pnglibconf.tf4', {
 	expr='-f $srcdir/scripts/options.awk out=/dev/stdout',
 })
-build('cc', '$outdir/pnglibconf.tf1', {'$outdir/pnglibconf.c', '||', 'pkg/zlib/headers'}, {
-	cflags='$cflags -E -MT $outdir/pnglibconf.tf1',
-})
+build('cpp', '$outdir/pnglibconf.tf1', {'$outdir/pnglibconf.c', '||', 'pkg/zlib/headers'})
 build('awk', '$outdir/include/pnglibconf.h', '$outdir/pnglibconf.tf1', {
 	expr='-f $srcdir/scripts/dfn.awk out=/dev/stdout',
 })
-- 
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