Bug#866945: tinymux: please make the build reproducible

[Chris Lamb]

Source: tinymux
Version: 2.10.1.13-1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0], we noticed
that tinymux could not be built reproducibly as it includes the
current build time.

Patch attached that uses SOURCE_DATE_EPOCH [1]

 [0] https://reproducible-builds.org/
 [1] https://reproducible-builds.org/specs/source-date-epoch/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb, Debian Project Leader
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproduciblebuild.diff	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproduciblebuild.diff	2017-07-02 21:59:04.605714234 +0100
@@ -0,0 +1,24 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2017-07-02
+
+--- tinymux-2.10.1.13.orig/src/Makefile.in
++++ tinymux-2.10.1.13/src/Makefile.in
+@@ -120,11 +120,16 @@ LIBMUX_BASE_OBJ = libmux.o
+ MUX_LIBS = @MUX_LIBS@
+ DL_LIB = @DL_LIB@
+ 
++MUX_BUILD_DATE = `date`
++ifdef SOURCE_DATE_EPOCH
++    MUX_BUILD_DATE = $(shell LC_ALL=C date --utc --date="@$(SOURCE_DATE_EPOCH)")
++endif
++
+ # Version number routines
+ #
+ VER_SRC = version.cpp
+ VER_OBJ = version.o
+-VER_FLG = -DMUX_BUILD_DATE="\"`date`\"" \
++VER_FLG = -DMUX_BUILD_DATE="\"$(MUX_BUILD_DATE)\"" \
+           -DMUX_BUILD_NUM="\"`sh ./buildnum.sh`\""
+ 
+ # ===================== CONFIGURATION SECTION ====================
--- a/debian/patches/series	2017-07-02 21:31:54.259658638 +0100
--- b/debian/patches/series	2017-07-02 21:51:48.335120591 +0100
@@ -1 +1,2 @@
 cppflags.diff
+reproduciblebuild.diff