[virt-tools-list] [virt-viewer 2/2] build-sys: Don't substitute buildid when it was not set

[Christophe Fergeau]

Since it defaults to being 0, we'll get a spurious 0 on remote-viewer
--version if we AC_DEFINE/AC_SUBST it when the user did not specify it.
---
 configure.ac | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index ef13477..2933d89 100644
--- a/configure.ac
+++ b/configure.ac
@@ -233,8 +233,12 @@ fi
 AC_ARG_WITH([buildid],
     AS_HELP_STRING([--with-buildid=id], [Set additional build version details]),
     [buildid="-$with_buildid"], [buildid="0"])
-AC_DEFINE_UNQUOTED([BUILDID], "$buildid", [Build version details])
-AC_SUBST([BUILDID], "$buildid")
+if test "x$buildid" != "x0"; then
+    AC_DEFINE_UNQUOTED([BUILDID], "$buildid", [Build version details])
+    AC_SUBST([BUILDID], "$buildid")
+else
+    AC_DEFINE_UNQUOTED([BUILDID], "", [Build version details])
+fi
 
 major=`echo $PACKAGE_VERSION | cut -d. -f1`
 minor=`echo $PACKAGE_VERSION | cut -d. -f2`
-- 
2.4.2