Add pkg-config files to allow deps to build against source tree

When testing language bindings it is useful to be able to build
them against an uninstalled libvirt source tree. Add a dummy
set of pkg-config files to allow for this. This can be used by
setting

  export PKG_CONFIG_PATH=/path/to/libvirt/git/src

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

.gitignore

@@ -98,6 +98,7 @@
 /run
 /sc_*
 /src/.*.stamp
+/src/*.pc
 /src/access/org.libvirt.api.policy
 /src/access/viraccessapicheck.c
 /src/access/viraccessapicheck.h

configure.ac

@@ -2730,6 +2730,9 @@ AC_CONFIG_FILES([\
         libvirt.pc \
         libvirt-qemu.pc \
         libvirt-lxc.pc \
+        src/libvirt.pc \
+        src/libvirt-qemu.pc \
+        src/libvirt-lxc.pc \
         libvirt.spec mingw-libvirt.spec \
         po/Makefile.in \
         include/libvirt/Makefile include/libvirt/libvirt.h \

src/libvirt-lxc.pc.in

@@ -0,0 +1,18 @@
+# Dummy pkg-config file to allow lang bindings
+# to build against a libvirt source tree eg
+# export PKG_CONFIG_PATH=/path/to/libvirt/git/src
+
+prefix=@abs_top_builddir@
+exec_prefix=@abs_top_builddir@
+libdir=@abs_top_builddir@/src
+includedir=@abs_top_builddir@/include
+datarootdir=@abs_top_builddir@
+
+libvirt_lxc_api=@datadir@/docs/libvirt-lxc-api.xml
+
+Name: libvirt
+Version: @VERSION@
+Description: libvirt LXC library
+Requires:
+Libs: -L${libdir} -lvirt-lxc
+Cflags: -I${includedir}

src/libvirt-qemu.pc.in

@@ -0,0 +1,18 @@
+# Dummy pkg-config file to allow lang bindings
+# to build against a libvirt source tree eg
+# export PKG_CONFIG_PATH=/path/to/libvirt/git/src
+
+prefix=@abs_top_builddir@
+exec_prefix=@abs_top_builddir@
+libdir=@abs_top_builddir@/src
+includedir=@abs_top_builddir@/include
+datarootdir=@abs_top_builddir@
+
+libvirt_qemu_api=@datadir@/docs/libvirt-qemu-api.xml
+
+Name: libvirt
+Version: @VERSION@
+Description: libvirt QEMU library
+Requires:
+Libs: -L${libdir} -lvirt-qemu
+Cflags: -I${includedir}

src/libvirt.pc.in

@@ -0,0 +1,23 @@
+# Dummy pkg-config file to allow lang bindings
+# to build against a libvirt source tree eg
+# export PKG_CONFIG_PATH=/path/to/libvirt/git/src
+
+prefix=@abs_top_builddir@
+exec_prefix=@abs_top_builddir@
+libdir=@abs_top_builddir@/src
+includedir=@abs_top_builddir@/include
+datarootdir=@abs_top_builddir@
+
+libvirt_api=@datadir@/docs/libvirt-api.xml
+
+# For compat with older versions - also present
+# in libvirt-qemu.pc / libvirt-lxc.pc
+libvirt_qemu_api=@datadir@/docs/libvirt-qemu-api.xml
+libvirt_lxc_api=@datadir@/docs/libvirt-lxc-api.xml
+
+Name: libvirt
+Version: @VERSION@
+Description: libvirt library
+Requires:
+Libs: -L${libdir} -lvirt
+Cflags: -I${includedir}