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-rw-r--r--src/version/version.h.in7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/version/version.h.in b/src/version/version.h.in
index 9f82d905a7..4219dce83a 100644
--- a/src/version/version.h.in
+++ b/src/version/version.h.in
@@ -1 +1,8 @@
+/* Detailed project version that includes git commit when not built from a release.
+ * Use this in preference to PROJECT_VERSION, with the following exceptions:
+ * - where a simplified form is expected for compatiblity, for example
+ * 'udevadm version',
+ * - where a simplified machine-parsable form is more useful, for example
+ * pkgconfig files and version information written to binary files.
+ */
#define GIT_VERSION "@VCS_TAG@"