[cmake-developers] [PATCH 3/5] Also add Platform specific Frameworks to Darwin Framework search path

[Gregor Jasny]

Otherwise find_library is unable to lookup the XCTest framework which
is not located in the SDK serach path:

In the 10.10 SDK the SDK frameworks are located here:

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/
  Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/

whereas the Platform SDKs are located here:
  Developer/Library/Frameworks

Signed-off-by: Gregor Jasny <gjasny at googlemail.com>
---
 Modules/Platform/Darwin.cmake                |  5 ++++
 Tests/XcodePlatformFrameworks/CMakeLists.txt | 38 ++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 Tests/XcodePlatformFrameworks/CMakeLists.txt

diff --git a/Modules/Platform/Darwin.cmake b/Modules/Platform/Darwin.cmake
index e5c5f36..e3d705d 100644
--- a/Modules/Platform/Darwin.cmake
+++ b/Modules/Platform/Darwin.cmake
@@ -166,6 +166,11 @@ if(_CMAKE_OSX_SYSROOT_PATH)
     ${_CMAKE_OSX_SYSROOT_PATH}/Network/Library/Frameworks
     ${_CMAKE_OSX_SYSROOT_PATH}/System/Library/Frameworks
     )
+  if(IS_DIRECTORY ${_CMAKE_OSX_SYSROOT_PATH}/../../Library/Frameworks)
+    list(APPEND CMAKE_SYSTEM_FRAMEWORK_PATH
+      ${_CMAKE_OSX_SYSROOT_PATH}/../../Library/Frameworks
+      )
+  endif()
 endif()
 list(APPEND CMAKE_SYSTEM_FRAMEWORK_PATH
   /Library/Frameworks
diff --git a/Tests/XcodePlatformFrameworks/CMakeLists.txt b/Tests/XcodePlatformFrameworks/CMakeLists.txt
new file mode 100644
index 0000000..09e374a
--- /dev/null
+++ b/Tests/XcodePlatformFrameworks/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 3.1)
+
+set(CMAKE_OSX_SYSROOT macosx)
+
+project(XcodePlatformFrameworks)
+
+# detect Xcode version
+
+execute_process(
+  COMMAND xcodebuild -version
+  OUTPUT_VARIABLE _stdout
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+  ERROR_VARIABLE _stderr
+  RESULT_VARIABLE _failed
+  )
+
+if(_failed)
+  message(FATAL_ERROR "Error while running xcodebuild: ${_stderr}")
+endif()
+
+set(XCODE_VERSION_REGEX ".*Xcode +([0-9.]+).*")
+
+if(NOT _stdout MATCHES ${XCODE_VERSION_REGEX})
+  message(FATAL_ERROR "Cannot find Xcode version in ${_stdout}")
+endif()
+
+string(REGEX REPLACE "${XCODE_VERSION_REGEX}" "\\1" XCODE_VERSION ${_stdout})
+
+message(STATUS "Xcode version: ${XCODE_VERSION}")
+
+if(NOT XCODE_VERSION VERSION_LESS "5.0")
+  find_library(XCTEST_LIBRARY XCTest)
+  if(XCTEST_LIBRARY)
+    message(STATUS "XCTest found: ${XCTEST_LIBRARY}")
+  else()
+    message(FATAL_ERROR "XCTest Framework not found.")
+  endif()
+endif()
-- 
2.3.0