Description: Make the build reproducible
Author: Chris Lamb <lamby@debian.org>
Last-Update: 2016-08-08
X-Bug: https://bugs.debian.org/833819

Make the build reproducible:
https://wiki.debian.org/ReproducibleBuilds

--- n2n-1.3.1~svn3789.orig/Makefile
+++ n2n-1.3.1~svn3789/Makefile
@@ -57,7 +57,11 @@ $(N2N_LIB): $(N2N_OBJS)
 version.c:
 	@echo $(N2N_VERSION) | sed -e 's/.*/const char * version   = "&";/' > version.c
 	@uname -p | sed -e 's/.*/const char * osName    = "&";/' >> version.c
+ifdef SOURCE_DATE_EPOCH
+	@LC_ALL=C date --utc --date="@$(SOURCE_DATE_EPOCH)" +"%D %r" | sed -e 's/.*/const char * buildDate = "&";/' >> version.c
+else
 	@date +"%D %r" | sed -e 's/.*/const char * buildDate = "&";/' >> version.c
+endif
 
 clean:
 	rm -rf $(N2N_OBJS) $(N2N_LIB) $(APPS) $(DOCS) *.dSYM *~ version.c