[pango/cairo-detection-improvements: 1/2] pango/meson.build: Fix pangocairo.pc on MSVC builds

[Chun-wei Fan <fanchunwei src gnome org>]

commit 039f842773df8e5cb56c8840d2741bbc321a3ed7
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Jul 19 18:15:12 2019 +0800

    pango/meson.build: Fix pangocairo.pc on MSVC builds
    
    On MSVC builds, Cairo may be found either via pkg-config files or
    manually through finding headers and libs, so we need to ensure that we
    create pangocairo.pc correctly, otherwise items that depend on
    PangoCairo may not link correctly.

 pango/meson.build | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
---
diff --git a/pango/meson.build b/pango/meson.build
index cfbf8a9a..e47fded2 100644
--- a/pango/meson.build
+++ b/pango/meson.build
@@ -490,13 +490,21 @@ if cairo_dep.found()
     sources: pangocairo_dep_sources,
   )
 
+  # Create pangocairo.pc according to whether we found Cairo
+  # manually
+  if ['pkgconfig', 'internal'].contains(cairo_found_type)
+    pango_cairo_requires = [ 'pango', cairo_pc ]
+  else
+    pango_cairo_requires = [ 'pango' ]
+  endif
+
   pkgconfig.generate(libpangocairo,
     name: 'Pango Cairo',
     description: 'Cairo rendering support for Pango',
     version: meson.project_version(),
     filebase: 'pangocairo',
     subdirs: pango_api_name,
-    requires: [ 'pango', cairo_pc ],
+    requires: pango_cairo_requires,
     install_dir: join_paths(pango_libdir, 'pkgconfig'),
   )
 else