Ticket #48369: patch-qt4-osx-1011.diff

Portfile

@@ -46 +46 @@
                     port:libmng \
                     port:jpeg
 
+# Reference platforms for Qt 4.8 are OS X 10.6 and 10.7.
+if {${os.platform} eq "darwin" && ${os.major} > 14} {
+    pre-fetch {
+        ui_warn "OS X versions above 10.10 (Yosemite) are not supported platforms for Qt 4.8."
+        ui_warn "Will build using OS X 10.10 as deployment target and SDK."
+    }
+
+    # Qt 4.8 fails to build on OS X 10.11 as it uses deprecated API (ColorSync)
+    # which has been removed from the 10.11 SDK headers.
+    macosx_deployment_target 10.10
+}
+
 # find a way to specify the OS MINOR version.  For OSX 10.X, this
 # value will be X.  The type is this variable is integer, so we can
 # use "==" and so forth for comparison.
@@ -237 +249 @@
 patchfiles-append   \
     patch-tools_macdeployqt_shared_shared.cpp.diff
 
-# error out if trying to build on a new OSX version (> 10.10).
-
-platform darwin {
-    if {${MINOR} > 10} {
-        # This project needs to be updated to build with clang++ against libc++
-        depends_lib
-        depends_run
-        pre-fetch {
-            ui_error "$name does not currently build on OSX later than 10.10 'Yosemite'."
-            error "unsupported platform"
-        }
-    }
-}
-
 ###############################################
 
 # disable CCACHE for now (ticket #34856)