Merge pull request #864 from dstadulis/globally-consistent-build-input-identifier

make: update VERSION_TAG to a globally-consistent build-input identifier

Author: ellemouton

make/release_flags.mk

@@ -1,4 +1,5 @@
-VERSION_TAG = $(shell git describe --tags)
+# Create a globally-consistent, build-input identifier.
+VERSION_TAG = $(shell git describe --abbrev=40 --broken --tags --always)
 VERSION_CHECK = @$(call print, "Building master with date version tag")
 
 BUILD_SYSTEM = darwin-amd64 \