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-rw-r--r--CMakeLists.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6d59430..1169e94 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,7 +129,14 @@ execute_process(
ERROR_QUIET
)
ENDIF()
-IF((NOT ${ADD_GIT_INFO}) OR (${PROJECT_VERSION_GIT_RETURN_CODE}))
+# the version.h generation logic is tricky in a number of ways:
+# 1. git describe on a release tarball will always fail with
+# a non-zero return code, usually 128
+# 2. If git is not installed, PROJECT_VERSION_GIT_RETURN_CODE
+# will contain the string 'No such file or directory'
+# Hence fallback to PROJECT_VERSION when the return code is NOT 0.
+IF((NOT ${ADD_GIT_INFO}) OR (NOT ${PROJECT_VERSION_GIT_RETURN_CODE} STREQUAL "0"))
+ MESSAGE(STATUS "Setting fallback Git library version")
SET(PROJECT_VERSION_GIT "v${PROJECT_VERSION}")
ENDIF()
MESSAGE(STATUS "Setting Git library version to: " ${PROJECT_VERSION_GIT} )