Handle missing git info when building

6 years ago · 44c80e5d8b
parent 0270906dbf
commit 44c80e5d8b
1 changed files with 6 additions and 2 deletions
--- a/externals/cmake-modules/GetGitRevisionDescription.cmake.in
+++ b/externals/cmake-modules/GetGitRevisionDescription.cmake.in
@ -33,6 +33,10 @@ else()
 endif()
 if(NOT HEAD_HASH)
-	file(READ "@GIT_DATA@/head-ref" HEAD_HASH LIMIT 1024)
+	if(EXISTS "@GIT_DATA@/head-ref")
-	string(STRIP "${HEAD_HASH}" HEAD_HASH)
+		file(READ "@GIT_DATA@/head-ref" HEAD_HASH LIMIT 1024)
 		string(STRIP "${HEAD_HASH}" HEAD_HASH)
 	else()
 		set(HEAD_HASH "Unknown")
 	endif()
 endif()