prboom-notes

[<web...@pr...>]

Author: entryway
Date: Mon Sep 18 07:40:58 2017
New Revision: 4528

Log:
Allow for reproducible builds

https://reproducible-builds.org/

Fabian Greffrath

Modified:
   branches/prboom-plus-24/prboom2/configure.ac
   branches/prboom-plus-24/prboom2/src/version.c

Modified: branches/prboom-plus-24/prboom2/configure.ac
==============================================================================
--- branches/prboom-plus-24/prboom2/configure.ac	Sun Sep 10 11:58:52 2017	(r4527)
+++ branches/prboom-plus-24/prboom2/configure.ac	Mon Sep 18 07:40:58 2017	(r4528)
@@ -263,5 +263,14 @@
 AC_SUBST(CFLAGS)
 AC_SUBST(DOOMWADDIR)
 
+dnl --- https://reproducible-builds.org/specs/source-date-epoch/
+SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(date +%s)}"
+DATE_FMT="%Y-%m-%d"
+BUILD_DATE=$(date -u -d "@$SOURCE_DATE_EPOCH" "+$DATE_FMT" 2>/dev/null || date -u -r "$SOURCE_DATE_EPOCH" "+$DATE_FMT" 2>/dev/null || date -u "+$DATE_FMT")
+AC_DEFINE_UNQUOTED(BUILD_DATE,"$BUILD_DATE",[Define the build date for reproducible builds])
+TIME_FMT="%H:%M:%S"
+BUILD_TIME=$(date -u -d "@$SOURCE_DATE_EPOCH" "+$TIME_FMT" 2>/dev/null || date -u -r "$SOURCE_DATE_EPOCH" "+$TIME_FMT" 2>/dev/null || date -u "+$TIME_FMT")
+AC_DEFINE_UNQUOTED(BUILD_TIME,"$BUILD_TIME",[Define the build time for reproducible builds])
+
 dnl --- output
 AC_OUTPUT(Makefile src/Makefile src/POSIX/Makefile src/SDL/Makefile src/MAC/Makefile src/PCSOUND/Makefile src/TEXTSCREEN/Makefile src/MUSIC/Makefile doc/Makefile data/Makefile ICONS/Makefile VisualC6/Makefile VisualC8/Makefile prboom.spec)

Modified: branches/prboom-plus-24/prboom2/src/version.c
==============================================================================
--- branches/prboom-plus-24/prboom2/src/version.c	Sun Sep 10 11:58:52 2017	(r4527)
+++ branches/prboom-plus-24/prboom2/src/version.c	Mon Sep 18 07:40:58 2017	(r4528)
@@ -33,6 +33,15 @@
  */
 
 
+#include "doomdef.h"
 #include "version.h"
 
-const char version_date[] = __DATE__ " " __TIME__;
+#ifndef BUILD_DATE
+#define BUILD_DATE __DATE__
+#endif
+
+#ifndef BUILD_TIME
+#define BUILD_TIME __TIME__
+#endif
+
+const char version_date[] = BUILD_DATE " " BUILD_TIME;