libmpv: add pkg-config file

libmpv/mpv.pc.in

@@ -0,0 +1,11 @@
+prefix=@PREFIX@
+exec_prefix=@PREFIX@
+libdir=@LIBDIR@
+includedir=@INCDIR@
+
+Name: mpv
+Description: mpv media player client library
+Version: @VERSION@
+Requires:
+Libs: -L${libdir} -lmpv
+Cflags: -I${includedir}

wscript_build.py

@@ -451,10 +451,22 @@ def build(ctx):
             vnum         = "0.0.0",
         )
 
+        ctx(
+            target       = 'libmpv/mpv.pc',
+            source       = 'libmpv/mpv.pc.in',
+            features     = 'subst',
+            PREFIX       = ctx.env.PREFIX,
+            LIBDIR       = ctx.env.LIBDIR,
+            INCDIR       = ctx.env.INCDIR,
+            vnum         = "0.0.0",
+        )
+
         headers = ["client.h"]
         for f in headers:
             ctx.install_as(ctx.env.INCDIR + '/libmpv/' + f, 'libmpv/' + f)
 
+        ctx.install_as(ctx.env.LIBDIR + '/pkgconfig/mpv.pc', 'libmpv/mpv.pc')
+
     if ctx.dependency_satisfied('client-api-examples'):
         # This assumes all examples are single-file (as examples should be)
         for f in ["simple"]: