This patch adds build support for libvirt checking for certain contents of /usr/include/linux/if_link.h to see whether macvtap support is compilable on that system. One can disable macvtap support in libvirt via --without-macvtap passed to configure. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com&gt;

Index: libvirt-macvtap/src/Makefile.am =================================================================== --- libvirt-macvtap.orig/src/Makefile.am +++ libvirt-macvtap/src/Makefile.am @@ -55,6 +55,7 @@ UTIL_SOURCES = \ util/ebtables.c util/ebtables.h \ util/json.c util/json.h \ util/logging.c util/logging.h \ + util/macvtap.c util/macvtap.h \ util/memory.c util/memory.h \ util/pci.c util/pci.h \ util/processinfo.c util/processinfo.h \ @@ -784,12 +785,15 @@ if WITH_LINUX USED_SYM_FILES += libvirt_linux.syms endif +USED_SYM_FILES += libvirt_macvtap.syms + EXTRA_DIST += \ libvirt_public.syms \ libvirt_private.syms \ libvirt_driver_modules.syms \ libvirt_bridge.syms \ - libvirt_linux.syms + libvirt_linux.syms \ + libvirt_macvtap.syms BUILT_SOURCES = libvirt.syms Index: libvirt-macvtap/src/libvirt_macvtap.syms =================================================================== --- /dev/null +++ libvirt-macvtap/src/libvirt_macvtap.syms @@ -0,0 +1,5 @@ +# + +# macvtap.h +openMacvtapTap; +delMacvtapByMACAddress; Index: libvirt-macvtap/configure.ac =================================================================== --- libvirt-macvtap.orig/configure.ac +++ libvirt-macvtap/configure.ac @@ -1827,6 +1827,25 @@ AC_ARG_WITH([qemu-group], AC_DEFINE_UNQUOTED([QEMU_USER], ["$QEMU_USER"], [QEMU user account]) AC_DEFINE_UNQUOTED([QEMU_GROUP], ["$QEMU_GROUP"], [QEMU group account]) + +AC_ARG_WITH([macvtap], + AC_HELP_STRING([--with-macvtap],[enable macvtap device @<:@default=check@:>@]), + [with_macvtap=${withval}], + [with_macvtap=check]) + +if test "$with_macvtap" != "no" ; then + AC_DEFINE_UNQUOTED([WITH_MACVTAP], 1, [whether macvtap support is enabled]) + AC_TRY_COMPILE([ #include <linux/if_link.h> ], + [ int x = MACVLAN_MODE_BRIDGE; ], + [ with_macvtap=yes ], + [ if test "$with_macvtap" = "yes" ; then + AC_MSG_ERROR([Installed linux headers don't show support for macvtap device.]) + fi + with_macvtap=no ]) +fi +AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) + + # Only COPYING.LIB is under version control, yet COPYING # is included as part of the distribution tarball. # Copy one to the other, but only if this is a srcdir-build. @@ -1878,6 +1897,7 @@ AC_MSG_NOTICE([ Remote: $with_remote]) AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) +AC_MSG_NOTICE([ macvtap: $with_macvtap]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([])