1 files changed, 2 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 71851da..58afeb3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,17 +10,18 @@ AC_PROG_LIBTOOL
 PKG_PROG_PKG_CONFIG
 
 AC_HEADER_STDC
 
 AC_PATH_PROG([XSLTPROC],[xsltproc],[true])
 
 AC_MSG_CHECKING([for source tree version])
 if headrev=$(cd $srcdir && git rev-parse --verify HEAD 2>/dev/null) ; then
- PACKAGE_SRC_VERSION="${PACKAGE_VERSION}:$(cd $srcdir && git describe --tags $headrev)"
+ PACKAGE_SRC_VERSION="$(cd $srcdir && git describe --tags $headrev)"
+ test "$PACKAGE_SRC_VERSION" = "$PACKAGE_VERSION" || PACKAGE_SRC_VERSION="${PACKAGE_VERSION}:${PACKAGE_SRC_VERSION}"
  ( cd $srcdir && git diff-index $headrev | read dirt ) && PACKAGE_SRC_VERSION="${PACKAGE_SRC_VERSION}-dirty"
 else
  PACKAGE_SRC_VERSION="$PACKAGE_VERSION"
 fi
 AC_MSG_RESULT([$PACKAGE_SRC_VERSION])
 AC_SUBST([PACKAGE_SRC_VERSION])
 AC_DEFINE_UNQUOTED([PACKAGE_SRC_VERSION],["$PACKAGE_SRC_VERSION"],[more or less precise source tree version])