[libvirt] [PATCH] Rework configure logic for virtualport support
In this patch I am reworking the logic around detecting virtual port
support and requiring the libnl dependency.
- It requires --with-macvtap and displays an error in case of
--without-macvtap --with-virtualport.
- It tests for availability of certain data in include files and
displays an error in case the include file is not at the correct level
and --with-virtualport was chosen
- displays 'checking' messages for macvtap and virtualport support and
results
- libnl support is required when macvtap is found or requested; if libnl
is not there, please supply without-macvtap
Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>
diff --git a/configure.ac b/configure.ac
index 6100610..d94b510 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2058,6 +2058,7 @@ AC_ARG_WITH([macvtap],
[with_macvtap=${withval}],
[with_macvtap=check])
+AC_MSG_CHECKING([whether to compile with macvtap support])
if test "$with_macvtap" != "no" ; then
AC_TRY_COMPILE([ #include <sys/socket.h>
#include <linux/rtnetlink.h> ],
@@ -2075,19 +2076,31 @@ if test "$with_macvtap" != "no" ; then
AC_DEFINE_UNQUOTED([WITH_MACVTAP], $val, [whether macvtap support
is enabled])
fi
AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"])
+AC_MSG_RESULT([$with_macvtap])
-AC_TRY_COMPILE([ #include <sys/socket.h>
- #include <linux/rtnetlink.h> ],
- [ int x = IFLA_PORT_MAX; ],
- [ with_virtualport=yes ],
- [ with_virtualport=no ])
-if test "$with_virtualport" = "yes"; then
- val=1
-else
- val=0
+val=0
+if test "$with_virtualport" != "no"; then
+ if test "$with_macvtap" = "no"; then
+ AC_MSG_ERROR([--with-virtualport requires --with-macvtap])
+ fi
+ AC_MSG_CHECKING([whether to compile with virtual port support])
+ AC_TRY_COMPILE([ #include <sys/socket.h>
+ #include <linux/rtnetlink.h> ],
+ [ int x = IFLA_PORT_MAX; ],
+ [ with_virtualport=yes ],
+ [ if test "$with_virtualport" = "yes" ; then
+ AC_MSG_ERROR([Installed linux headers don't
show support for virtual port support.])
+ fi
+ with_virtualport=no ])
+ if test "$with_virtualport" = "yes"; then
+ val=1
+ else
+ val=0
+ fi
+ AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val,
+ [whether vsi vepa support is enabled])
+ AC_MSG_RESULT([$with_virtualport])
fi
-AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val,
- [whether vsi vepa support is enabled])
AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" =
"yes"])
@@ -2096,7 +2109,7 @@ dnl netlink library
LIBNL_CFLAGS=""
LIBNL_LIBS=""
-if test "$with_macvtap" = "yes" || test "$with_virtualport"
= "yes"; then
+if test "$with_macvtap" = "yes"; then
PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [
], [
AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap
support])