tools: Make qemu-xen-traditional build optional.

Now that we have upstream qemu people may want to avoid building this extra
code.

There is a little bit of trickery in stubdom/configure.ac to ensure that the
ioemu stubdom is only built if qemu-traditional is enabled.

libxl will return an error if a caller tries to build a domain using
qemu-xen-traditional when this support was disabled at build time. Since
qemu-xen-traditional has been historically tightly bound to the Xen releases I
don't see any value in supporting "3rd party" provision of
qemu-xen-traditional.

We also do not want/need this on ARM therefore default is on for x86 and off
otherwise.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
[ ijc -- trivial conflicts in Tools.mk.in and tools/configure.ac.
         Reran autogen.sh ]

1 files changed, 16 insertions, 0 deletions

diff --git a/tools/configure.ac b/tools/configure.ac
index 1b4625a299..9b05478083 100644
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -60,6 +60,22 @@ AX_ARG_DEFAULT_ENABLE([debug], [Disable debug build of tools])
 AX_ARG_DEFAULT_ENABLE([xend], [Disable xend toolstack])
 AX_ARG_DEFAULT_DISABLE([blktap1], [Disable blktap1 tools])
 
+AC_ARG_ENABLE([qemu-traditional],
+    AS_HELP_STRING([--enable-qemu-traditional],
+                   [Enable qemu traditional device model, (DEFAULT is on for x86, otherwise off)]),,[
+    case "$host_cpu" in
+        i[[3456]]86|x86_64)
+           enable_qemu_traditional="yes";;
+        *) enable_qemu_traditional="no";;
+    esac
+])
+AS_IF([test "x$enable_qemu_traditional" = "xyes"], [
+AC_DEFINE([HAVE_QEMU_TRADITIONAL], [1], [Qemu traditional enabled])
+    qemu_traditional=y],[
+    qemu_traditional=n
+])
+AC_SUBST(qemu_traditional)
+
 AC_ARG_VAR([PREPEND_INCLUDES],
     [List of include folders to prepend to CFLAGS (without -I)])
 AC_ARG_VAR([PREPEND_LIB],