build.bash: handle missing git tags

The case of a git repo without any tags used to fail
with:

  fatal: No names found, cannot describe anything.

Now we continue, using "[no_tags_found]" as the
version string.

1 files changed, 1 insertions, 1 deletions

diff --git a/build.bash b/build.bash
index c19e789..b5a0c4d 100755
--- a/build.bash
+++ b/build.bash
@@ -24,7 +24,7 @@ GOPATH1=$(go env GOPATH | cut -f1 -d:)
 
 # gocryptfs version according to git or a VERSION file
 if [[ -d .git ]] ; then
-	GITVERSION=$(git describe --tags --dirty)
+	GITVERSION=$(git describe --tags --dirty || echo "[no_tags_found]")
 	GITBRANCH=$(git rev-parse --abbrev-ref HEAD)
 	if [[ -n $GITBRANCH && $GITBRANCH != master ]] ; then
 		GITVERSION="$GITVERSION.$GITBRANCH"