From 2aaea5390a841e2682a318746e90aebbe8a955b9 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <joshua@reverberate.org>
Date: Tue, 4 Aug 2009 17:51:17 -0700
Subject: Makefile is much improved ("make deps" works again, etc).

---
 gen-deps.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 gen-deps.sh

(limited to 'gen-deps.sh')

diff --git a/gen-deps.sh b/gen-deps.sh
new file mode 100755
index 0000000..6f7b4af
--- /dev/null
+++ b/gen-deps.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+# This script wraps gcc -MM, which unhelpfully strips the directory
+# off of the input filename.  In other words, if you run:
+#
+# $ gcc -MM src/upb_parse.c
+#
+# ...the emitted dependency information looks like:
+#
+# upb_parse.o: src/upb_parse.h [...]
+#
+# Since upb_parse.o is actually in src, the dependency information is
+# not used.  To remedy this, we use the -MT flag (see gcc docs).
+
+rm -f deps
+for file in $@; do
+  gcc -MM $file -MT ${file%.*}.o -Idescriptor -Isrc -I. >> deps
+done
-- 
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