File itpp-reproducible.patch of Package itpp
https://sourceforge.net/p/itpp/git/merge-requests/3/
Author: Bernhard M. Wiedemann <bwiedemann@suse.de>
Date: Wed Sep 13 18:33:01 2017 +0200
use cmake TIMESTAMP
to make build more platform-independent
and to allow to override build date to enable reproducible builds
See https://reproducible-builds.org/ for why this is good.
Also use UTC to be independent of timezones.
Index: itpp-4.3.1/CMakeLists.txt
===================================================================
--- itpp-4.3.1.orig/CMakeLists.txt
+++ itpp-4.3.1/CMakeLists.txt
@@ -25,7 +25,7 @@
#
# -------------------------------------------------------------------------
-cmake_minimum_required ( VERSION 2.8.6 )
+cmake_minimum_required ( VERSION 2.8.11 )
set ( CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules/ ${CMAKE_MODULE_PATH} )
@@ -154,12 +154,7 @@ set (PACKAGE_VERSION "4.3.1")
set (PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set (PACKAGE_TARNAME ${PACKAGE})
set (PACKAGE_URL "")
-if (UNIX)
- EXECUTE_PROCESS(COMMAND "date" "+%d/%m/%Y" OUTPUT_VARIABLE PACKAGE_DATE)
- string(REGEX REPLACE "(..)/(..)/..(..).*" "\\1/\\2/\\3" PACKAGE_DATE "${PACKAGE_DATE}")
-else()
- set(PACKAGE_DATE "")
-endif()
+string(TIMESTAMP PACKAGE_DATE "%Y-%m-%d" UTC)
if (WIN32 AND NOT MINGW)
#TODO: remove this from future versions