Meson: Add carbon and cocoa flags into glib and gio pc files

https://bugzilla.gnome.org/show_bug.cgi?id=788773

gio/meson.build

@@ -800,6 +800,7 @@ if giomodulesdir == ''
 endif
 
 pkg.generate(libraries : libgio,
+  libraries_private : [osx_ldflags],
   requires : ['glib-2.0', 'gobject-2.0'],
   variables : ['bindir=' + join_paths('${prefix}', get_option('bindir')),
                'giomoduledir=' + giomodulesdir,

glib/meson.build

@@ -234,7 +234,7 @@ libglib = library('glib-2.0',
   soversion : soversion,
   install : true,
   # intl.lib is not compatible with SAFESEH
-  link_args : platform_ldflags + noseh_link_args,
+  link_args : noseh_link_args,
   include_directories : configinc,
   link_with : [charset_lib, gnulib_lib],
   dependencies : [pcre, thread_dep, libintl, librt] + libiconv + platform_deps,
@@ -250,6 +250,7 @@ libglib_dep = declare_dependency(
   include_directories : [configinc, glibinc])
 
 pkg.generate(libraries : libglib,
+  libraries_private : [osx_ldflags],
   subdirs : ['glib-2.0'],
   extra_cflags : ['-I${libdir}/glib-2.0/include'],
   variables : ['bindir=' + join_paths('${prefix}', get_option('bindir')),

meson.build

@@ -551,7 +551,7 @@ if host_system == 'linux'
   endif
 endif
 
-platform_ldflags=[]
+osx_ldflags = []
 
 # Mac OS X Carbon support
 glib_have_carbon = cc.compiles('''#include <Carbon/Carbon.h>
@@ -562,14 +562,11 @@ glib_have_os_x_9_or_later = false
 
 if glib_have_carbon
   glib_conf.set('HAVE_CARBON', true)
-  CARBON_LIBS='-Wl,-framework,Carbon' # FIXME: propagate to .pc files as well
-  platform_ldflags += [CARBON_LIBS]
+  osx_ldflags += '-Wl,-framework,Carbon'
   glib_have_os_x_9_or_later = cc.compiles('''#include <AvailabilityMacros.h>
                                              #if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
                                              #error Compiling for minimum OS X version before 10.9
                                              #endif''', name : 'OS X 9 or later')
-else
-  CARBON_LIBS=''
 endif
 
 # Mac OS X Cocoa support
@@ -581,12 +578,11 @@ glib_have_cocoa = cc.compiles('''#include <Cocoa/Cocoa.h>
 
 if glib_have_cocoa
   glib_conf.set('HAVE_COCOA', true)
-  COCOA_LIBS='-Wl,-framework,Foundation -Wl,-framework,AppKit' # FIXME: propagate to .pc files as well
-  platform_ldflags += [COCOA_LIBS]
-else
-  COCOA_LIBS=''
+  osx_ldflags += '-Wl,-framework,Foundation -Wl,-framework,AppKit'
 endif
 
+add_project_link_arguments(osx_ldflags, language : 'c')
+
 # Check for futex(2)
 if cc.links('''#include <linux/futex.h>
                #include <sys/syscall.h>