Enabling LLVM & Clang to be cross-compiled using CMake from a single configuration...

[oota-llvm.git] / cmake / platforms / iOS.cmake

diff --git a/cmake/platforms/iOS.cmake b/cmake/platforms/iOS.cmake
new file mode 100644 (file)
index 0000000..4973643
--- /dev/null
+++ b/cmake/platforms/iOS.cmake
@@ -0,0 +1,47 @@
+# Toolchain config for iOS.
+#
+# Usage:
+# mkdir build; cd build
+# cmake ..; make
+# mkdir ios; cd ios
+# cmake -DLLVM_IOS_TOOLCHAIN_DIR=/path/to/ios/ndk \
+#   -DCMAKE_TOOLCHAIN_FILE=../../cmake/platforms/iOS.cmake ../..
+# make <target>
+
+SET(CMAKE_SYSTEM_NAME Darwin)
+SET(CMAKE_SYSTEM_VERSION 13)
+SET(CMAKE_CXX_COMPILER_WORKS True)
+SET(CMAKE_C_COMPILER_WORKS True)
+SET(DARWIN_TARGET_OS_NAME ios)
+
+IF(NOT DEFINED ENV{SDKROOT})
+ MESSAGE(FATAL_ERROR "SDKROOT env var must be set: " $ENV{SDKROOT})
+ENDIF()
+
+IF(NOT CMAKE_C_COMPILER)
+  execute_process(COMMAND xcrun -sdk iphoneos -find clang
+   OUTPUT_VARIABLE CMAKE_C_COMPILER
+   ERROR_QUIET
+   OUTPUT_STRIP_TRAILING_WHITESPACE)
+  message(STATUS "Using c compiler ${CMAKE_C_COMPILER}")
+ENDIF()
+
+IF(NOT CMAKE_CXX_COMPILER)
+  execute_process(COMMAND xcrun -sdk iphoneos -find clang++
+   OUTPUT_VARIABLE CMAKE_CXX_COMPILER
+   ERROR_QUIET
+   OUTPUT_STRIP_TRAILING_WHITESPACE)
+  message(STATUS "Using c compiler ${CMAKE_CXX_COMPILER}")
+ENDIF()
+
+IF (NOT DEFINED IOS_MIN_TARGET)
+execute_process(COMMAND xcodebuild -sdk iphoneos -version SDKVersion
+   OUTPUT_VARIABLE IOS_MIN_TARGET
+   ERROR_QUIET
+   OUTPUT_STRIP_TRAILING_WHITESPACE)
+ENDIF()
+
+SET(IOS_COMMON_FLAGS "-isysroot $ENV{SDKROOT} -mios-version-min=${IOS_MIN_TARGET}")
+SET(CMAKE_C_FLAGS "${IOS_COMMON_FLAGS}" CACHE STRING "toolchain_cflags" FORCE)
+SET(CMAKE_CXX_FLAGS "${IOS_COMMON_FLAGS}" CACHE STRING "toolchain_cxxflags" FORCE)
+SET(CMAKE_LINK_FLAGS "${IOS_COMMON_FLAGS}" CACHE STRING "toolchain_linkflags" FORCE)