Fix for https://gitlab.com/git-latexdiff/git-latexdiff/issues/7
---
--- src/git-latexdiff	2016-01-26 14:04:54.338568955 +0100
+++ src/git-latexdiff	2016-01-26 14:40:23.700381943 +0100
@@ -44,11 +44,7 @@
 git_latexdiff_version='@GIT_LATEXDIFF_VERSION@'

 git_latexdiff_compute_version () {
-    if [ "$git_latexdiff_version" = '@GIT_LATEXDIFF''_VERSION@' ]; then
-	(cd "$(dirname "$0")" && git describe --tags HEAD 2>/dev/null || echo 'Unknown version')
-    else
-	echo "$git_latexdiff_version"
-    fi
+    echo "$git_latexdiff_version"
 }

 usage () {