# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1503319341 -10800
# Node ID 18d1d8d26a18fbbfa9177656d2c2349a9bee77b9
# Parent  ce5a1b3651e172ba1957fead0bd0e822f25fff41
Improve build system.

diff -r ce5a1b3651e1 -r 18d1d8d26a18 Makefile
--- a/Makefile	Mon Aug 21 15:42:06 2017 +0300
+++ b/Makefile	Mon Aug 21 15:42:21 2017 +0300
@@ -21,18 +21,19 @@
 	MINGW_PREFIX=x86_64-w64-mingw32- \
 	MINGW_PATH=/usr/x86_64-w64-mingw32
 
-$(DATA):
+$(DATA): $(wildcard $(BPATH)/data/*)
 	cd $(BPATH)/data && $(DMLIB)/tools/packed -p $@ -c -x \*~ -v *
 
 tools:
-	cd $(DMLIB) && cp config.mak.in config.mak && make -j4
+	@if test ! -e $(DMLIB)config.mak; then cp $(DMLIB)config.mak.in $(DMLIB)config.mak; fi
+	@cd $(DMLIB) && make -j4
 
 data: tools $(DATA)
 
 package: linux-bin mingw-win32 $(DATA)
 	strip $(BINPATH)/*.bin $(BINPATH)/*.exe
 	$(RM) $(PACKAGE)
-	@cp SDL.dll LICENSE.txt README.txt file_id.diz $(BINPATH)
+	cp SDL.dll LICENSE.txt README.txt file_id.diz $(BINPATH)
 	cd $(BINPATH) && zip -x "*~" -9 $(PACKAGE) *