From 1729508fb2e62f48590747f7a505b0c5ba5b202e Mon Sep 17 00:00:00 2001
From: Richard W.M. Jones <rjones@redhat.com>
Date: Sat, 16 Jun 2012 10:19:39 +0100
Subject: [PATCH 01/19] EPEL 5: Remove checks which fail with ancient qemu.

Note that g->qemu_version and g->qemu_devices will both
be empty strings.
---
 configure.ac |   57 ---------------------------------------------------------
 src/launch.c |   14 ++------------
 2 files changed, 2 insertions(+), 69 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1a82511..4f954ed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -573,63 +573,6 @@ This could be a very old version of qemu, or qemu might not be
 working.
 ])
     fi
-
-    AC_MSG_CHECKING([that $QEMU -version works])
-    if $QEMU -version >&AS_MESSAGE_LOG_FD 2>&1; then
-        AC_MSG_RESULT([yes])
-    else
-        AC_MSG_RESULT([no])
-        AC_MSG_FAILURE(
-[$QEMU -version: command failed.
-
-This could be a very old version of qemu, or qemu might not be
-working.
-])
-    fi
-
-    AC_MSG_CHECKING([for $QEMU version >= 1])
-    if $QEMU -version | grep -sq 'version @<:@1-@:>@'; then
-        AC_MSG_RESULT([yes])
-    else
-        AC_MSG_RESULT([no])
-        AC_MSG_FAILURE([$QEMU version must be >= 1.0.])
-    fi
-
-    AC_MSG_CHECKING([that $QEMU -machine accel=kvm:tcg -device ? works])
-    if $QEMU -machine accel=kvm:tcg -device \? >&AS_MESSAGE_LOG_FD 2>&1; then
-        AC_MSG_RESULT([yes])
-    else
-        AC_MSG_RESULT([no])
-        AC_MSG_FAILURE([$QEMU -machine accel=kvm:tcg -device ? doesn't work.])
-    fi
-
-    AC_MSG_CHECKING([for virtio-serial support in $QEMU])
-    if $QEMU $QEMU_OPTIONS -machine accel=kvm:tcg -device \? 2>&1 | grep -sq virtio-serial; then
-        AC_MSG_RESULT([yes])
-    else
-        AC_MSG_RESULT([no])
-        AC_MSG_FAILURE(
-[I did not find virtio-serial support in
-$QEMU.
-
-virtio-serial support in qemu or KVM is essential for libguestfs
-to operate.
-
-Usually this means that you have to install a newer version of qemu
-and/or KVM.  Please read the relevant section in the README file for
-more information about this.
-
-You can override this test by setting the environment variable
-vmchannel_test=no
-
-However if you don't have the right support in your qemu, then this
-just delays the pain.
-
-If I am using the wrong qemu or you want to compile qemu from source
-and install it in another location, then you should configure with
-the --with-qemu option.
-])
-    fi
 fi
 
 dnl Enable packet dumps when in verbose mode.  This generates lots
diff --git a/src/launch.c b/src/launch.c
index 72eca51..f21b331 100644
--- a/src/launch.c
+++ b/src/launch.c
@@ -1365,18 +1365,8 @@ test_qemu (guestfs_h *g)
     return -1;
   }
 
-  snprintf (cmd, sizeof cmd, "LC_ALL=C '%s' -nographic -version 2>/dev/null",
-            g->qemu);
-
-  if (test_qemu_cmd (g, cmd, &g->qemu_version) == -1)
-    goto qemu_error;
-
-  snprintf (cmd, sizeof cmd,
-            "LC_ALL=C '%s' -nographic -machine accel=kvm:tcg -device '?' 2>&1",
-            g->qemu);
-
-  if (test_qemu_cmd (g, cmd, &g->qemu_devices) == -1)
-    goto qemu_error;
+  g->qemu_version = safe_strdup (g, "");
+  g->qemu_devices = safe_strdup (g, "");
 
   return 0;
 }
-- 
1.7.4.1