Bug#860200: poti: please make the build reproducible

[Chris Lamb]

Source: poti
Version: 4.2-1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: randomness
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0], we noticed
that poti could not be built reproducibly.

This is due to missing .git/ directory, but we might as well make
this fallback nicely if Git itself is not available either.

Patch attached.

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


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproducible-build.diff	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.diff	2017-04-12 19:41:40.927523511 +0100
@@ -0,0 +1,17 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2017-04-12
+
+--- poti-4.2.orig/CMakeLists.txt
++++ poti-4.2/CMakeLists.txt
+@@ -16,8 +16,8 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
+ PROJECT(poti)
+ SET(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
+ 
+-EXEC_PROGRAM("git --git-dir=${PROJECT_SOURCE_DIR}/.git log --oneline -1" OUTPUT_VARIABLE "POTI_GITVERSION")
+-EXEC_PROGRAM("git --git-dir=${PROJECT_SOURCE_DIR}/.git log -n 1 --format=%ai" OUTPUT_VARIABLE "POTI_GITDATE")
++EXEC_PROGRAM("git --git-dir=${PROJECT_SOURCE_DIR}/.git log --oneline -1 2>/dev/null || echo '(unknown)'" OUTPUT_VARIABLE "POTI_GITVERSION")
++EXEC_PROGRAM("git --git-dir=${PROJECT_SOURCE_DIR}/.git log -n 1 --format=%ai 2>/dev/null || echo '(unknown)'" OUTPUT_VARIABLE "POTI_GITDATE")
+ 
+ SET(CMAKE_C_FLAGS "-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror ")
+ 
--- a/debian/patches/series	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/series	2017-04-12 19:39:15.210922005 +0100
@@ -0,0 +1 @@
+reproducible-build.diff