Bug#891405: gr-gsm: please make the build reproducible

[Chris Lamb <lamby@debian.org>]

Source: gr-gsm
Version: 0.41.2-1
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs@lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0], we noticed
that gr-gsm could not be built reproducibly as it includes a
timestamp in the binary.

Patch attached.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby@debian.org / chris-lamb.co.uk
       `-

--- a/debian/patches/10001-reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/10001-reproducible-build.patch	2018-02-25 09:54:38.647275238 +0000
@@ -0,0 +1,15 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2018-02-25
+
+--- gr-gsm-0.41.2.orig/lib/CMakeLists.txt
++++ gr-gsm-0.41.2/lib/CMakeLists.txt
+@@ -44,7 +44,7 @@ endmacro()
+ # Handle the generated constants
+ ########################################################################
+ execute_process(COMMAND ${PYTHON_EXECUTABLE} -c
+-    "import time;print time.strftime('%a, %d %b %Y %H:%M:%S', time.gmtime())"
++    "import os,time,datetime; print datetime.datetime.utcfromtimestamp(int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))).strftime('%a, %d %b %Y %H:%M:%S')"
+     OUTPUT_VARIABLE BUILD_DATE OUTPUT_STRIP_TRAILING_WHITESPACE
+ )
+ message(STATUS "Loading build date ${BUILD_DATE} into constants...")
--- a/debian/patches/series	2018-02-25 08:41:45.525339428 +0000
--- b/debian/patches/series	2018-02-25 09:54:38.027269791 +0000
@@ -1 +1,2 @@
 1000-desktop-file-location.patch
+10001-reproducible-build.patch