From b0a89cc6e5ffff050ddecd09e9af8eb6723f9ba6 Mon Sep 17 00:00:00 2001
From: Wilmer van der Gaast <wilmer@gaast.net>
Date: Fri, 27 Aug 2010 09:48:18 +0100
Subject: Use nifty gcc -MD feature to automatically track .h dependencies of
 all C files, this finally gives proper dependencies, which means the end of
 getting broken binaries around headerfile changes, etc.

Sure, this may not work on obscurux with superawesomeincompatiblecc while
autoconf does, but at least BitlBee's configure script still runs in <1s.
:-)
---
 configure | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 9b77604c..c0d79bdd 100755
--- a/configure
+++ b/configure
@@ -570,6 +570,14 @@ EOF
 	fi
 fi
 
+case "$CC" in
+*gcc* )
+	echo CFLAGS+=-MD -MF .depend/\$@.d >> Makefile.settings
+	for i in . lib protocols protocols/*/; do
+		mkdir -p $i/.depend
+	done
+esac
+
 if [ "$msn" = 0 ]; then
 	echo '#undef WITH_MSN' >> config.h
 else
-- 
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