summaryrefslogtreecommitdiffstats
path: root/Modules/CMakeTestSwiftCompiler.cmake
diff options
context:
space:
mode:
authorGregor Jasny <gjasny@googlemail.com>2015-09-06 16:19:18 (GMT)
committerGregor Jasny <gjasny@googlemail.com>2015-09-06 16:19:18 (GMT)
commit9cdf6ef48d62fed477cc9cf48995d7c91382f5f6 (patch)
tree647047e8a6ffd9de8e6cbcff90ced1f211cd9559 /Modules/CMakeTestSwiftCompiler.cmake
parent1aa29f0db614f1292cff24633d61218d82490d1e (diff)
downloadCMake-9cdf6ef48d62fed477cc9cf48995d7c91382f5f6.zip
CMake-9cdf6ef48d62fed477cc9cf48995d7c91382f5f6.tar.gz
CMake-9cdf6ef48d62fed477cc9cf48995d7c91382f5f6.tar.bz2
Swift: Add proper Swift compiler test
This catches for example the unavailability of Swift with Xcode Beta6 and macosx10.10 SDK.
Diffstat (limited to 'Modules/CMakeTestSwiftCompiler.cmake')
-rw-r--r--Modules/CMakeTestSwiftCompiler.cmake52
1 files changed, 51 insertions, 1 deletions
diff --git a/Modules/CMakeTestSwiftCompiler.cmake b/Modules/CMakeTestSwiftCompiler.cmake
index 9186426..89849fb 100644
--- a/Modules/CMakeTestSwiftCompiler.cmake
+++ b/Modules/CMakeTestSwiftCompiler.cmake
@@ -12,4 +12,54 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
-set(CMAKE_Swift_COMPILER_WORKS 1)
+if(CMAKE_Swift_COMPILER_FORCED)
+ # The compiler configuration was forced by the user.
+ # Assume the user has configured all compiler information.
+ set(CMAKE_Swift_COMPILER_WORKS TRUE)
+ return()
+endif()
+
+include(CMakeTestCompilerCommon)
+
+# Remove any cached result from an older CMake version.
+# We now store this in CMakeSwiftCompiler.cmake.
+unset(CMAKE_Swift_COMPILER_WORKS CACHE)
+
+# This file is used by EnableLanguage in cmGlobalGenerator to
+# determine that that selected C++ compiler can actually compile
+# and link the most basic of programs. If not, a fatal error
+# is set and cmake stops processing commands and will not generate
+# any makefiles or projects.
+if(NOT CMAKE_Swift_COMPILER_WORKS)
+ PrintTestCompilerStatus("Swift" "")
+ file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/main.swift
+ "import Foundation\n"
+ "print(\"CMake\")\n")
+ try_compile(CMAKE_Swift_COMPILER_WORKS ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/main.swift
+ OUTPUT_VARIABLE __CMAKE_Swift_COMPILER_OUTPUT)
+ # Move result from cache to normal variable.
+ set(CMAKE_Swift_COMPILER_WORKS ${CMAKE_Swift_COMPILER_WORKS})
+ unset(CMAKE_Swift_COMPILER_WORKS CACHE)
+ set(Swift_TEST_WAS_RUN 1)
+endif()
+
+if(NOT CMAKE_Swift_COMPILER_WORKS)
+ PrintTestCompilerStatus("Swift" " -- broken")
+ file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+ "Determining if the Swift compiler works failed with "
+ "the following output:\n${__CMAKE_Swift_COMPILER_OUTPUT}\n\n")
+ message(FATAL_ERROR "The Swift compiler \"${CMAKE_Swift_COMPILER}\" "
+ "is not able to compile a simple test program.\nIt fails "
+ "with the following output:\n ${__CMAKE_Swift_COMPILER_OUTPUT}\n\n"
+ "CMake will not be able to correctly generate this project.")
+else()
+ if(Swift_TEST_WAS_RUN)
+ PrintTestCompilerStatus("Swift" " -- works")
+ file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+ "Determining if the Swift compiler works passed with "
+ "the following output:\n${__CMAKE_Swift_COMPILER_OUTPUT}\n\n")
+ endif()
+endif()
+
+unset(__CMAKE_Swift_COMPILER_OUTPUT)