Only create VERSION file on make dist

Author: woodcoder

Makefile.am

@@ -1,2 +1,5 @@
 bin_PROGRAMS = ca
 ca_SOURCES = circa.c
+
+dist-hook:
+	echo $(VERSION) > $(top_srcdir)/VERSION

version.sh

@@ -3,5 +3,4 @@
 
 v=`git describe --abbrev=4 --match="v*" HEAD`
 v=`echo "$v" | tr -d "vg" | tr "\-" "."`
-echo $v > VERSION
 printf %s "$v"