configure: Remove -Wmissing-noreturn warning.

[libguestfs.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index ae50e76..57c01be 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -107,6 +107,8 @@ if test "$gl_gcc_warnings" = yes; then
                                     # by Python, Ruby and xstrtoll.
   nw="$nw -Wstack-protector"        # Don't warn about stack-protector
                                     # failures (seen on Ubuntu).
+  nw="$nw -Wmissing-noreturn"       # Don't warn about missed noreturn funcs
+                                    # (seen on Ubuntu).
 
   gl_MANYWARN_ALL_GCC([ws])
   gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
@@ -310,6 +312,19 @@ 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])