contrib/rpm: support building with meson

Add support for building with meson, enabled by '--with meson' so that
we can regularly test the whole build+test+install procedure with
meson. I compared the RPM contents of NM, NM-libnm, NM-libnm-devel
packages and they match the autotools ones. It's also faster:

  $ time contrib/fedora/rpm/build_clean.sh -g -Q -f

  real    3m54.239s
  user    11m15.000s
  sys     1m28.456s

  $ time contrib/fedora/rpm/build_clean.sh -g -Q -f -w meson

  real    3m9.938s
  user    9m5.225s
  sys     1m4.392s

(cherry picked from commit 295b9d5b81)

contrib/fedora/rpm/NetworkManager.spec

@@ -45,6 +45,7 @@
 
 ###############################################################################
 
+%bcond_with meson
 %bcond_without adsl
 %bcond_without bluetooth
 %bcond_without wwan
@@ -144,8 +145,12 @@ Conflicts: kde-plasma-networkmanagement < 1:0.9-0.49.20110527git.nm09
 BuildRequires: gcc
 BuildRequires: libtool
 BuildRequires: pkgconfig
+%if %{with meson}
+BuildRequires: meson
+%else
 BuildRequires: automake
 BuildRequires: autoconf
+%endif
 BuildRequires: intltool
 BuildRequires: gettext-devel
 
@@ -453,6 +458,99 @@ by nm-connection-editor and nm-applet in a non-graphical environment.
 
 
 %build
+%if %{with meson}
+%meson \
+	-Ddhcpcanon=no \
+	-Ddhcpcd=no \
+	-Dconfig_dhcp_default=%{dhcp_default} \
+%if %{with crypto_gnutls}
+	-Dcrypto=gnutls \
+%else
+	-Dcrypto=nss \
+%endif
+%if %{with debug}
+	-Dmore_logging=true \
+	-Dmore_asserts=10000 \
+%else
+	-Dmore_logging=false \
+	-Dmore_asserts=0 \
+%endif
+	-Dld_gc=true \
+	-Dlibaudit=yes-disabled-by-default \
+%if 0%{?with_modem_manager_1}
+	-Dmodem_manager=true \
+%else
+	-Dmodem_manager=false \
+%endif
+%if %{with wifi}
+	-Dwifi=true \
+%if 0%{?fedora}
+	-Dwext=true \
+%else
+	-Dwext=false \
+%endif
+%else
+	-Dwifi=false \
+%endif
+%if %{with iwd}
+	-Diwd=true \
+%else
+	-Diwd=false \
+%endif
+	-Dvapi=true \
+	-Dintrospection=true \
+%if %{with regen_docs}
+	-Ddocs=true \
+%else
+	-Ddocs=false \
+%endif
+%if %{with team}
+	-Dteamdctl=true \
+%else
+	-Dteamdctl=false \
+%endif
+%if %{with ovs}
+	-Dovs=true \
+%else
+	-Dovs=false \
+%endif
+	-Dselinux=true \
+	-Dpolkit=yes  \
+	-Dpolkit_agent=true \
+	-Dmodify_system=true \
+	-Dconcheck=true \
+%if 0%{?fedora}
+	-Dlibpsl=true \
+%else
+	-Dlibpsl=false \
+%endif
+	-Dsession_tracking=systemd \
+	-Dsuspend_resume=systemd \
+	-Dsystemdsystemunitdir=%{systemd_dir} \
+	-Dsystem_ca_path=/etc/pki/tls/cert.pem \
+	-Ddbus_conf_dir=%{dbus_sys_dir} \
+	-Dtests=yes \
+	-Dvalgrind=no \
+	-Difcfg_rh=true \
+%if %{with ppp}
+	-Dpppd_plugin_dir=%{_libdir}/pppd/%{ppp_version} \
+	-Dppp=true \
+%endif
+	-Ddist_version=%{version}-%{release} \
+	-Dconfig_plugins_default='ifcfg-rh' \
+	-Dconfig_dns_rc_manager_default=symlink \
+	-Dconfig_logging_backend_default=journal \
+	-Djson_validation=true \
+%if %{with libnm_glib}
+	-Dlibnm_glib=true
+%else
+	-Dlibnm_glib=false
+%endif
+
+%meson_build
+
+%else
+# autotools
 %if %{with regen_docs}
 gtkdocize
 %endif
@@ -565,10 +663,14 @@ intltoolize --automake --copy --force
 
 make %{?_smp_mflags}
 
+%endif # end autotools
 
 %install
-# install NM
+%if %{with meson}
+%meson_install
+%else
 make install DESTDIR=%{buildroot}
+%endif
 
 cp %{SOURCE1} %{buildroot}%{_sysconfdir}/%{name}/
 
@@ -604,11 +706,20 @@ touch %{buildroot}%{_sbindir}/ifup %{buildroot}%{_sbindir}/ifdown
 
 
 %check
+%if %{with meson}
+%if %{with test}
+%meson_test
+%else
+%ninja_test -C %{_vpath_builddir} || :
+%endif
+%else
+# autotools
 %if %{with test}
 make -k %{?_smp_mflags} check
 %else
 make -k %{?_smp_mflags} check || :
 %endif
+%endif # end autotools
 
 
 %pre