X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=configure.ac;h=38301611fd37adfa1f98d93f1e760bab614582db;hb=b2ad24867dc60868ebc04cdb9928c874f2dd723f;hp=94e519465616a42963f4da009c618dd36c29cf3a;hpb=913d5cd3a950a35f19581262250f58a871689d8c;p=libguestfs.git

diff --git a/configure.ac b/configure.ac
index 94e5194..3830161 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,7 @@
 # major/minor/release must be numbers
 m4_define([libguestfs_major],   [1])
 m4_define([libguestfs_minor],   [8])
-m4_define([libguestfs_release], [8])
+m4_define([libguestfs_release], [9])
 # extra can be any string
 m4_define([libguestfs_extra],   [])
 
@@ -310,6 +310,19 @@ AC_DEFINE_UNQUOTED([QEMU],["$QEMU"],[Location of qemu binary.])
 
 dnl Check that the chosen qemu has virtio-serial support.
 if test "x$vmchannel_test" != "xno"; then
+    AC_MSG_CHECKING([that $QEMU -help works])
+    if $QEMU -help > /dev/null 2>&1; then
+        AC_MSG_RESULT([yes])
+    else
+        AC_MSG_RESULT([no])
+        AC_MSG_FAILURE(
+[$QEMU -help: command failed.
+
+This could be a very old version of qemu, or qemu might not be
+working.
+])
+    fi
+
     AC_MSG_CHECKING([for virtio-serial support in $QEMU])
     if $QEMU -nographic -device \? 2>&1 | grep -sq virtio-serial; then
         AC_MSG_RESULT([yes])