[LyX/master] Cmake build: Needed variable for creation of debian package

[Kornel Benko]

commit 847c68960a8227c344ec6c0d66034d012bb9de5c
Author: Kornel Benko <kor...@lyx.org>
Date:   Sat Oct 7 10:47:17 2017 +0200

    Cmake build: Needed variable for creation of debian package
    
    The variable CPACK_DEBIAN_PACKAGE_RELEASE has to be in the form
    of "^[A-Za-z0-9.+~]+$". We will use the abbreviated commit revision for now.
    Without this change cmake 3.10 emits error.
---
 CMakeLists.txt                       |    6 ++++--
 development/cmake/LyxPackaging.cmake |    1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b9397ce..32b5d64 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -354,12 +354,14 @@ endforeach(_c_l)
 FIND_PROGRAM(LYX_GITVERSION git)
 #message(STATUS "gitversion = ${LYX_GITVERSION}")
 set(LYX_REVISION_VERSION ${LYX_PATCH_VERSION})
+set(LYX_PACKAGE_RELEASE "1")
 if(LYX_GITVERSION)
   if (LYX_LOCALVERSIONING)
     # Find the revision number and for later use
     EXECUTE_PROCESS(COMMAND ${LYX_GITVERSION} describe --match 2.0.0 HEAD
-      WORKING_DIRECTORY "${TOP_SRC_DIR}" OUTPUT_VARIABLE LYX_PACKAGE_RELEASE 
OUTPUT_STRIP_TRAILING_WHITESPACE)
-    if (LYX_PACKAGE_RELEASE MATCHES "^2\\.0\\.0\\-\([0-9]+\)\\-.*$")
+      WORKING_DIRECTORY "${TOP_SRC_DIR}" OUTPUT_VARIABLE 
tmp_LYX_PACKAGE_RELEASE OUTPUT_STRIP_TRAILING_WHITESPACE)
+    if (tmp_LYX_PACKAGE_RELEASE MATCHES "^2\\.0\\.0\\-\([0-9]+\)\\-\(.*\)$")
+      set(LYX_PACKAGE_RELEASE ${CMAKE_MATCH_2})
       # We will add offset of 40000 to get appropriate value to
       # previous svn.
       # We use this value than also to set the package-patch-value
diff --git a/development/cmake/LyxPackaging.cmake 
b/development/cmake/LyxPackaging.cmake
index b0f6258..140072c 100644
--- a/development/cmake/LyxPackaging.cmake
+++ b/development/cmake/LyxPackaging.cmake
@@ -128,6 +128,7 @@ set(CPACK_SOURCE_PACKAGE_FILE_NAME 
"${LYX_PROJECT}-${LYX_INSTALL_SUFFIX}")
 set(CPACK_DEBIAN_PACKAGE_DEPENDS "python (>= 2.6)")
 
 # use dpkg-shlibdeps to generate additional info for package dependency list.
+set(CPACK_DEBIAN_PACKAGE_RELEASE ${LYX_PACKAGE_RELEASE})
 set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
 set(CPACK_DEBIAN_PACKAGE_DEBUG ON)