configure: Default to main if asset version is empty

diff --git a/configure.ac b/configure.ac
index 335e10f8d907d6e3ddf6f984867e1bb24a7e61d9..66edd455c0d5700ca6c836970bf4db9029266aad 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -288,7 +288,10 @@ AC_DEFINE([DOVECOT_VERSION_MINOR], regexp(AC_PACKAGE_VERSION, [^\([0-9]+\)\.\([0
 AC_DEFINE([DOVECOT_VERSION_MICRO], regexp(AC_PACKAGE_VERSION, [^\([0-9]+\)\.\([0-9]+\).\([0-9]+\)], [\3]), [Dovecot micro version])
 
 AC_SUBST(DOVECOT_ASSET_VERSION, regexp(AC_PACKAGE_VERSION, [^\([0-9]+\)\.\([0-9]+\).\([0-9]+\)], [\1.\2.\3]))
-AS_IF([test $DOVECOT_ASSET_VERSION = "0.0.0"], [
+AS_IF([test "$DOVECOT_ASSET_VERSION" = "0.0.0"], [
+  AC_SUBST([DOVECOT_ASSET_VERSION], "main")
+])
+AS_IF([test "$DOVECOT_ASSET_VERSION" = ""], [
   AC_SUBST([DOVECOT_ASSET_VERSION], "main")
 ])