--- doomlegacy-1.44/src/Makefile	2011-03-13 23:16:45.655640054 +0200
+++ doomlegacy-1.44/src/Makefile	2011-03-13 23:14:40.039898572 +0200
@@ -41,11 +41,6 @@
 # SDL Mixer, to get music
 HAVE_MIXER=1
 
-# Developers with svn can enable this to have svn number in executable.
-# Causes compile error message otherwise.
-# Until can find test for presence of svn, this is best that can be done.
-#SVN_ENABLE=1
-
 # Subdirectories for objects and binaries
 O=../objs
 BIN=../bin
@@ -92,7 +87,6 @@
 NASMFORMAT=elf -DLINUX
 i_cdmus_o=$(O)/i_cdmus.o
 
-
 # default system media interface
 ifndef SMIF
   SMIF = SDL
@@ -331,6 +325,7 @@
 OBJS :=  $(OBJS) \
 		$(O)/dstrings.o  \
 		$(i_cdmus_o)	 \
+		$(O)/i_main.o	 \
 		$(O)/i_net.o	 \
 		$(O)/i_tcp.o	 \
 		$(O)/i_system.o  \
@@ -462,15 +457,13 @@
 $(O):
 	@mkdir $(O)
 
-.PHONY : versionstring
-# This may fail because, (a) svn not installed, (b) not a svn directory.
-# This compiles d_main a second time, with SVN_REV set.
-versionstring:
-ifdef SVN_ENABLE
-	$(CC) -c $(CFLAGS) -DSVN_REV=\"`svn info | grep Revision | sed -e 's/Revision: //'`\" d_main.c -o $(O)/d_main.o
-endif
-
+# this prints "exported" if is outside svn dir, and "none" if svn not installed
+# release tarball should include svnrev.txt or not use the define in code.
+svnrev.txt:
+	(svnversion 2>/dev/null || echo none) > $@
 
+$(O)/d_main.o: d_main.c svnrev.txt
+	$(CC) $(CFLAGS) -DSVN_REV=\"`cat svnrev.txt`\" -c $< -o $@
 
 $(BIN)/wadtool: $(O)/wadtool.o $(O)/md5_cpp.o
 	$(CXX) $(LDFLAGS) $^ -o $@
@@ -503,12 +496,11 @@
 asm: $(BIN)/$(EXENAME)
 	objdump -d $(BIN)/$(EXENAME) --no-show-raw-insn > $(BIN)/doomlegacy.s
 
-
 # executable
-$(BIN)/$(EXENAME): $(O) $(OBJS) $(O)/i_main.o versionstring
+$(BIN)/$(EXENAME): $(O) $(OBJS)
 #	 @mkdir $(BIN)
 	@echo Linking...
-	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) $(O)/i_main.o \
+	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) \
 	-o $(BIN)/$(EXENAME) $(LIBS)