build: move QuartzCore linking to the cocoa check

It's needed for the DisplayLink functions so it must be enabled for the basic
cocoa code.

waftools/checks/custom.py

@@ -106,7 +106,7 @@ def check_cocoa(ctx, dependency_identifier):
     fn = check_cc(
         fragment         = load_fragment('cocoa.m'),
         compile_filename = 'test.m',
-        framework_name   = ['Cocoa', 'IOKit', 'OpenGL'],
+        framework_name   = ['Cocoa', 'IOKit', 'OpenGL', 'QuartzCore'],
         includes         = ctx.srcnode.abspath(),
         linkflags        = '-fobjc-arc')
 

waftools/fragments/cocoa.m

@@ -9,5 +9,7 @@ int main(int argc, char **argv) {
         NSArray *ary = @[@1, @2, @3];
         NSLog(@"test subscripting: %@", ary[0]);
         NSApplicationLoad();
+        CVDisplayLinkRef link;
+        CVDisplayLinkCreateWithCGDisplay(0, &link);
     }
 }

wscript

@@ -712,7 +712,7 @@ hwaccel_features = [
         'deps': [ 'gl-cocoa', 'vda-hwaccel' ],
         # apparently a bug in waf causes msg= to be needed when passing only
         # framework= (it probably fails to infer it)
-        'func': check_cc(msg='QuartzCore', framework='QuartzCore')
+        'func': check_true
     }, {
         'name': '--vdpau-hwaccel',
         'desc': 'libavcodec VDPAU hwaccel',