Fix building without a git repo.

CMakeModules/VersionConfiguration.cmake

@@ -3,13 +3,13 @@
 string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
 
 # Get git revision version
-include(GetGitRevisionDescription)
-get_git_head_revision(REFSPEC FULL_GIT_REVISION)
-if(FULL_GIT_REVISION STREQUAL "GITDIR-NOTFOUND")
-  set(GIT_REVISION "git")
-else(FULL_GIT_REVISION STREQUAL "GITDIR-NOTFOUND")
-  string(SUBSTRING ${FULL_GIT_REVISION} 0 8 GIT_REVISION)
-endif(FULL_GIT_REVISION STREQUAL "GITDIR-NOTFOUND")
+#include(GetGitRevisionDescription)
+#get_git_head_revision(REFSPEC FULL_GIT_REVISION)
+#if(FULL_GIT_REVISION STREQUAL "GITDIR-NOTFOUND")
+#  set(GIT_REVISION "git")
+#else(FULL_GIT_REVISION STREQUAL "GITDIR-NOTFOUND")
+#  string(SUBSTRING ${FULL_GIT_REVISION} 0 8 GIT_REVISION)
+#endif(FULL_GIT_REVISION STREQUAL "GITDIR-NOTFOUND")
 
 # Get the build number if available
 if(DEFINED ENV{BUILD_NUMBER})