[libvirt] [PATCH 3/3] Setup configure.in to detect presence of libnetcf and change config.h

[Daniel P. Berrange]

On Thu, Apr 02, 2009 at 02:18:40PM -0400, laine at laine.org wrote:
>  
>  dnl
> +dnl Is the netcf library available and desired?
> +dnl
> +AC_ARG_WITH([netcf],
> +[  --with-netcf            add libnetcf support (on)],[],[with_netcf=yes])
> +if test "$with_netcf" = "yes" ; then
> +  AC_CHECK_LIB([netcf], [ncf_init],
> +          [AC_CHECK_HEADER([netcf.h],
> +                  [LIB_NETCF=-lnetcf],
> +                  [AC_MSG_WARN([header netcf.h was not found, support for libnetcf will not be built])]
> +                  [with_netcf=no]
> +                  )],
> +          [AC_MSG_WARN([libnetcf library was not found or not usable, support for libnetcf will not be built])]
> +          [with_netcf=no])


I'm fairly sure netcf has support for pkg-config, so this
CHECK_LIB/HEADER bit can be simplified. Take a look at
te AVAHI check for a good example usage of pkg-config.


> +  AC_SUBST([LIB_NETCF])
> +fi
> +if test "$with_netcf" = "yes" ; then
> +  AC_DEFINE_UNQUOTED([WITH_NETCF], 1, [whether host interface config via libnetcf is enabled])
> +fi
> +AM_CONDITIONAL([WITH_NETCF], [test "$with_netcf" = "yes"])




> +
> +dnl
>  dnl Storage driver checks
>  dnl
>  
> @@ -1367,6 +1388,7 @@ AC_MSG_NOTICE([    Test: $with_test])
>  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([])
>  AC_MSG_NOTICE([Storage Drivers])
>  AC_MSG_NOTICE([])
> diff --git a/src/Makefile.am b/src/Makefile.am
> index 60b2d46..39766ee 100644
> --- a/src/Makefile.am
> +++ b/src/Makefile.am
> @@ -207,7 +207,7 @@ libvirt_driver_la_SOURCES =					\
>  		$(NODE_DEVICE_CONF_SOURCES)
>  
>  libvirt_driver_la_CFLAGS = $(XEN_CFLAGS) $(NUMACTL_CFLAGS)
> -libvirt_driver_la_LDFLAGS = $(XEN_LIBS) $(NUMACTL_LIBS)
> +libvirt_driver_la_LDFLAGS = $(XEN_LIBS) $(NUMACTL_LIBS) $(LIB_NETCF)

The 'netcf' stuff I imagine will only need to be used by the 'interface',
so I expect you'd end up with a 

  libvirt_driver_interface_la...

which would have the NETCF_LIBS & NETCF_CFLAGS settings

Daniel
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