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--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -26,7 +26,7 @@
# Get GIT changeset, if available
find_program(GIT_FOUND git)
-if(GIT_FOUND)
+if(GIT_FOUND AND EXISTS ${CMAKE_SOURCE_DIR}/.git)
# Get the commit hash of the working branch
execute_process(
COMMAND git rev-parse HEAD
@@ -34,6 +34,8 @@
OUTPUT_VARIABLE GIT_COMMIT_HASH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
+elseif(DEFINED DEBIAN_VERSION_ID)
+ set(GIT_COMMIT_HASH ${DEBIAN_VERSION_ID})
else()
set(GIT_COMMIT_HASH "unknown")
endif()
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