Refactor iOS builds to facilitate tvOS port

- moved prf files to shared location (uikit, added to QMAKE_PLATFORM)
- prepare some formatting (unconditional blocks mostly) to add conditions later
- make device detection script more generic, passing filter strings
  as a parameter and returning non-os specific variables

Change-Id: I61f2b77093304ff985bec9da04fda57ff296b16b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/mkspecs/features/uikit/qt_config.prf b/mkspecs/features/uikit/qt_config.prf
new file mode 100644
index 0000000000..00e2c0c258
--- /dev/null
+++ b/mkspecs/features/uikit/qt_config.prf
@@ -0,0 +1,17 @@
+load(qt_config)
+
+isEmpty(QT_ARCH) {
+    # The configure tests are run without QT_ARCH being resolved yet, which
+    # means we fail to pass -arch to the compiler, resulting in broke tests.
+    # As the Xcode toolchain doesn't seem to have a way to auto-detect the
+    # arch based on the SDK, we have to hard-code the arch for configure.
+    contains(QMAKE_MAC_SDK, $${device.sdk}.*) {
+        QT_ARCH = arm
+    } else { # Simulator
+        QT_ARCH = i386
+    }
+
+    # Prevent the arch/config tests from building as multi-arch binaries,
+    # as we only want the lowest common denominator features.
+    CONFIG += single_arch
+}