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[libvirt] [RFC] [PATCH 1/3 v2] vepa+vsi: Introduce dependency on libnl



This patch introduces a dependency on libnl, which subsequent patches
will then use.

Changes from V1 to V2:
- added diffstats
- following changes in tree

Signed-off-by: Stefan Berger <stefanb us ibm com>

---
 configure.ac    |   24 ++++++++++++++++++++++++
 libvirt.spec.in |   14 ++++++++++++++
 src/Makefile.am |    4 ++--
 3 files changed, 40 insertions(+), 2 deletions(-)

Index: libvirt-acl/configure.ac
===================================================================
--- libvirt-acl.orig/configure.ac
+++ libvirt-acl/configure.ac
@@ -42,6 +42,7 @@ HAL_REQUIRED=0.5.0
 DEVMAPPER_REQUIRED=1.0.0
 LIBCURL_REQUIRED="7.18.0"
 LIBPCAP_REQUIRED="1.0.0"
+LIBNL_REQUIRED="1.1"
 
 dnl Checks for C compiler.
 AC_PROG_CC
@@ -2005,6 +2006,24 @@ fi
 AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"])
 
 
+dnl netlink library
+
+LIBNL_CFLAGS=""
+LIBNL_LIBS=""
+
+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])
+    ])
+fi
+
+AC_SUBST([LIBNL_CFLAGS])
+AC_SUBST([LIBNL_LIBS])
+
+
+
+
 # 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.
@@ -2183,6 +2202,11 @@ AC_MSG_NOTICE([    pcap: $LIBPCAP_CFLAGS
 else
 AC_MSG_NOTICE([    pcap: no])
 fi
+if test "$with_macvtap" = "yes" ; then
+AC_MSG_NOTICE([      nl: $LIBNL_CFLAGS $LIBNL_LIBS])
+else
+AC_MSG_NOTICE([      nl: no])
+fi
 AC_MSG_NOTICE([])
 AC_MSG_NOTICE([Test suite])
 AC_MSG_NOTICE([])
Index: libvirt-acl/libvirt.spec.in
===================================================================
--- libvirt-acl.orig/libvirt.spec.in
+++ libvirt-acl/libvirt.spec.in
@@ -63,6 +63,7 @@
 %define with_yajl          0%{!?_without_yajl:0}
 %define with_nwfilter      0%{!?_without_nwfilter:0}
 %define with_libpcap       0%{!?_without_libpcap:0}
+%define with_macvtap       0%{!?_without_macvtap:0}
 
 # Non-server/HV driver defaults which are always enabled
 %define with_python        0%{!?_without_python:1}
@@ -153,6 +154,11 @@
 %if %{with_qemu}
 %define with_nwfilter 0%{!?_without_nwfilter:%{server_drivers}}
 %define with_libpcap  0%{!?_without_libpcap:%{server_drivers}}
+%define with_macvtap  0%{!?_without_macvtap:%{server_drivers}}
+%endif
+
+%if %{with_macvtap}
+%define with_libnl 1
 %endif
 
 # Force QEMU to run as non-root
@@ -282,6 +288,9 @@ BuildRequires: yajl-devel
 %if %{with_libpcap}
 BuildRequires: libpcap-devel
 %endif
+%if %{with_libnl}
+BuildRequires: libnl-devel
+%endif
 %if %{with_avahi}
 BuildRequires: avahi-devel
 %endif
@@ -531,6 +540,10 @@ of recent versions of Linux (and other O
 %define _without_libpcap --without-libpcap
 %endif
 
+%if ! %{with_macvtap}
+%define _without_macvtap --without-macvtap
+%endif
+
 %configure %{?_without_xen} \
            %{?_without_qemu} \
            %{?_without_openvz} \
@@ -560,6 +573,7 @@ of recent versions of Linux (and other O
            %{?_without_udev} \
            %{?_without_yajl} \
            %{?_without_libpcap} \
+           %{?_without_macvtap} \
            --with-qemu-user=%{qemu_user} \
            --with-qemu-group=%{qemu_group} \
            --with-init-script=redhat \
Index: libvirt-acl/src/Makefile.am
===================================================================
--- libvirt-acl.orig/src/Makefile.am
+++ libvirt-acl/src/Makefile.am
@@ -998,7 +998,7 @@ libvirt_la_LDFLAGS = $(VERSION_SCRIPT_FL
 		    $(CYGWIN_EXTRA_LDFLAGS) $(MINGW_EXTRA_LDFLAGS)
 libvirt_la_BUILT_LIBADD += ../gnulib/lib/libgnu.la
 libvirt_la_LIBADD += $(LIBXML_LIBS) \
-		    $(LIBPCAP_LIBS) \
+		    $(LIBPCAP_LIBS) $(LIBNL_LIBS) \
 		    $(DRIVER_MODULE_LIBS) \
 		    $(CYGWIN_EXTRA_LIBADD)
 libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) -DIN_LIBVIRT
@@ -1057,7 +1057,7 @@ libvirt_lxc_SOURCES =						\
 libvirt_lxc_LDFLAGS = $(WARN_CFLAGS) $(COVERAGE_LDFLAGS)
 libvirt_lxc_LDADD = $(CAPNG_LIBS) $(YAJL_LIBS) \
 		$(LIBXML_LIBS) $(NUMACTL_LIBS) $(LIB_PTHREAD) \
-		../gnulib/lib/libgnu.la
+		$(LIBNL_LIBS) ../gnulib/lib/libgnu.la
 libvirt_lxc_CFLAGS =				\
 		$(LIBPARTED_CFLAGS)		\
 		$(NUMACTL_CFLAGS)		\


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