summaryrefslogtreecommitdiffstats
path: root/Modules/CMakeDetermineCXXCompiler.cmake
diff options
context:
space:
mode:
authorDavid Cole <david.cole@kitware.com>2012-08-24 18:25:40 (GMT)
committerCMake Topic Stage <kwrobot@kitware.com>2012-08-24 18:25:40 (GMT)
commit34a0284603e3f4c746140d4c94eab98f9e513a8d (patch)
tree0b639aceb49d130bf3077a2e69820273bb9928f8 /Modules/CMakeDetermineCXXCompiler.cmake
parentdb78df744f71cada436c21499cc22a86554a6de4 (diff)
parent403ead65947751697dc17021b639caa12c6ac74a (diff)
downloadCMake-34a0284603e3f4c746140d4c94eab98f9e513a8d.zip
CMake-34a0284603e3f4c746140d4c94eab98f9e513a8d.tar.gz
CMake-34a0284603e3f4c746140d4c94eab98f9e513a8d.tar.bz2
Merge topic 'ide-compiler-id'
403ead6 Document CMAKE_<LANG>_COMPILER_(ID|VERSION) values 8be51f6 Test variables CMAKE_(C|CXX|Fortran)_COMPILER(|_ID|_VERSION) ec22a9b Cleanly enable a language in multiple subdirectories 66cb335 VS: Detect the compiler id and tool location 89595d6 VS10: Define CMAKE_VS_PLATFORM_TOOLSET variable 965a69d Xcode: Detect the compiler id and tool location 9a9e1ee CMakeDetermineCompilerId: Prepare to detect IDE compiler id b8b5c83 Re-order C/C++/Fortran compiler determination logic
Diffstat (limited to 'Modules/CMakeDetermineCXXCompiler.cmake')
-rw-r--r--Modules/CMakeDetermineCXXCompiler.cmake128
1 files changed, 58 insertions, 70 deletions
diff --git a/Modules/CMakeDetermineCXXCompiler.cmake b/Modules/CMakeDetermineCXXCompiler.cmake
index 8e4d59f..f8f4a57 100644
--- a/Modules/CMakeDetermineCXXCompiler.cmake
+++ b/Modules/CMakeDetermineCXXCompiler.cmake
@@ -38,87 +38,66 @@ if(NOT CMAKE_CXX_COMPILER_NAMES)
set(CMAKE_CXX_COMPILER_NAMES CC)
endif()
-if(NOT CMAKE_CXX_COMPILER)
- set(CMAKE_CXX_COMPILER_INIT NOTFOUND)
-
- # prefer the environment variable CXX
- if($ENV{CXX} MATCHES ".+")
- get_filename_component(CMAKE_CXX_COMPILER_INIT $ENV{CXX} PROGRAM PROGRAM_ARGS CMAKE_CXX_FLAGS_ENV_INIT)
- if(CMAKE_CXX_FLAGS_ENV_INIT)
- set(CMAKE_CXX_COMPILER_ARG1 "${CMAKE_CXX_FLAGS_ENV_INIT}" CACHE STRING "First argument to CXX compiler")
+if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
+elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
+ set(CMAKE_CXX_COMPILER_XCODE_TYPE sourcecode.cpp.cpp)
+else()
+ if(NOT CMAKE_CXX_COMPILER)
+ set(CMAKE_CXX_COMPILER_INIT NOTFOUND)
+
+ # prefer the environment variable CXX
+ if($ENV{CXX} MATCHES ".+")
+ get_filename_component(CMAKE_CXX_COMPILER_INIT $ENV{CXX} PROGRAM PROGRAM_ARGS CMAKE_CXX_FLAGS_ENV_INIT)
+ if(CMAKE_CXX_FLAGS_ENV_INIT)
+ set(CMAKE_CXX_COMPILER_ARG1 "${CMAKE_CXX_FLAGS_ENV_INIT}" CACHE STRING "First argument to CXX compiler")
+ endif()
+ if(NOT EXISTS ${CMAKE_CXX_COMPILER_INIT})
+ message(FATAL_ERROR "Could not find compiler set in environment variable CXX:\n$ENV{CXX}.\n${CMAKE_CXX_COMPILER_INIT}")
+ endif()
endif()
- if(NOT EXISTS ${CMAKE_CXX_COMPILER_INIT})
- message(FATAL_ERROR "Could not find compiler set in environment variable CXX:\n$ENV{CXX}.\n${CMAKE_CXX_COMPILER_INIT}")
+
+ # next prefer the generator specified compiler
+ if(CMAKE_GENERATOR_CXX)
+ if(NOT CMAKE_CXX_COMPILER_INIT)
+ set(CMAKE_CXX_COMPILER_INIT ${CMAKE_GENERATOR_CXX})
+ endif()
endif()
- endif()
- # next prefer the generator specified compiler
- if(CMAKE_GENERATOR_CXX)
+ # finally list compilers to try
if(NOT CMAKE_CXX_COMPILER_INIT)
- set(CMAKE_CXX_COMPILER_INIT ${CMAKE_GENERATOR_CXX})
+ set(CMAKE_CXX_COMPILER_LIST CC ${_CMAKE_TOOLCHAIN_PREFIX}c++ ${_CMAKE_TOOLCHAIN_PREFIX}g++ aCC cl bcc xlC clang++)
endif()
- endif()
- # finally list compilers to try
- if(NOT CMAKE_CXX_COMPILER_INIT)
- set(CMAKE_CXX_COMPILER_LIST CC ${_CMAKE_TOOLCHAIN_PREFIX}c++ ${_CMAKE_TOOLCHAIN_PREFIX}g++ aCC cl bcc xlC clang++)
- endif()
-
- _cmake_find_compiler(CXX)
-else()
+ _cmake_find_compiler(CXX)
+ else()
-# we only get here if CMAKE_CXX_COMPILER was specified using -D or a pre-made CMakeCache.txt
-# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
-#
-# if CMAKE_CXX_COMPILER is a list of length 2, use the first item as
-# CMAKE_CXX_COMPILER and the 2nd one as CMAKE_CXX_COMPILER_ARG1
+ # we only get here if CMAKE_CXX_COMPILER was specified using -D or a pre-made CMakeCache.txt
+ # (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
+ #
+ # if CMAKE_CXX_COMPILER is a list of length 2, use the first item as
+ # CMAKE_CXX_COMPILER and the 2nd one as CMAKE_CXX_COMPILER_ARG1
- list(LENGTH CMAKE_CXX_COMPILER _CMAKE_CXX_COMPILER_LIST_LENGTH)
- if("${_CMAKE_CXX_COMPILER_LIST_LENGTH}" EQUAL 2)
- list(GET CMAKE_CXX_COMPILER 1 CMAKE_CXX_COMPILER_ARG1)
- list(GET CMAKE_CXX_COMPILER 0 CMAKE_CXX_COMPILER)
- endif()
+ list(LENGTH CMAKE_CXX_COMPILER _CMAKE_CXX_COMPILER_LIST_LENGTH)
+ if("${_CMAKE_CXX_COMPILER_LIST_LENGTH}" EQUAL 2)
+ list(GET CMAKE_CXX_COMPILER 1 CMAKE_CXX_COMPILER_ARG1)
+ list(GET CMAKE_CXX_COMPILER 0 CMAKE_CXX_COMPILER)
+ endif()
-# if a compiler was specified by the user but without path,
-# now try to find it with the full path
-# if it is found, force it into the cache,
-# if not, don't overwrite the setting (which was given by the user) with "NOTFOUND"
-# if the CXX compiler already had a path, reuse it for searching the C compiler
- get_filename_component(_CMAKE_USER_CXX_COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH)
- if(NOT _CMAKE_USER_CXX_COMPILER_PATH)
- find_program(CMAKE_CXX_COMPILER_WITH_PATH NAMES ${CMAKE_CXX_COMPILER})
- mark_as_advanced(CMAKE_CXX_COMPILER_WITH_PATH)
- if(CMAKE_CXX_COMPILER_WITH_PATH)
- set(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER_WITH_PATH} CACHE STRING "CXX compiler" FORCE)
+ # if a compiler was specified by the user but without path,
+ # now try to find it with the full path
+ # if it is found, force it into the cache,
+ # if not, don't overwrite the setting (which was given by the user) with "NOTFOUND"
+ # if the CXX compiler already had a path, reuse it for searching the C compiler
+ get_filename_component(_CMAKE_USER_CXX_COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH)
+ if(NOT _CMAKE_USER_CXX_COMPILER_PATH)
+ find_program(CMAKE_CXX_COMPILER_WITH_PATH NAMES ${CMAKE_CXX_COMPILER})
+ mark_as_advanced(CMAKE_CXX_COMPILER_WITH_PATH)
+ if(CMAKE_CXX_COMPILER_WITH_PATH)
+ set(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER_WITH_PATH} CACHE STRING "CXX compiler" FORCE)
+ endif()
endif()
endif()
-endif()
-mark_as_advanced(CMAKE_CXX_COMPILER)
-
-if (NOT _CMAKE_TOOLCHAIN_LOCATION)
- get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_CXX_COMPILER}" PATH)
-endif ()
-
-# This block was used before the compiler was identified by building a
-# source file. Unless g++ crashes when building a small C++
-# executable this should no longer be needed.
-#
-# The g++ that comes with BeOS 5 segfaults if you run "g++ -E"
-# ("gcc -E" is fine), which throws up a system dialog box that hangs cmake
-# until the user clicks "OK"...so for now, we just assume it's g++.
-# if(BEOS)
-# set(CMAKE_COMPILER_IS_GNUCXX 1)
-# set(CMAKE_COMPILER_IS_GNUCXX_RUN 1)
-# endif()
-
-# Build a small source file to identify the compiler.
-if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
- set(CMAKE_CXX_COMPILER_ID_RUN 1)
- set(CMAKE_CXX_PLATFORM_ID "Windows")
- set(CMAKE_CXX_COMPILER_ID "MSVC")
-endif()
-if(NOT CMAKE_CXX_COMPILER_ID_RUN)
- set(CMAKE_CXX_COMPILER_ID_RUN 1)
+ mark_as_advanced(CMAKE_CXX_COMPILER)
# Each entry in this list is a set of extra flags to try
# adding to the compile line to see if it helps produce
@@ -127,6 +106,11 @@ if(NOT CMAKE_CXX_COMPILER_ID_RUN)
# Try compiling to an object file only.
"-c"
)
+endif()
+
+# Build a small source file to identify the compiler.
+if(NOT CMAKE_CXX_COMPILER_ID_RUN)
+ set(CMAKE_CXX_COMPILER_ID_RUN 1)
# Try to identify the compiler.
set(CMAKE_CXX_COMPILER_ID)
@@ -146,6 +130,10 @@ if(NOT CMAKE_CXX_COMPILER_ID_RUN)
endif()
endif()
+if (NOT _CMAKE_TOOLCHAIN_LOCATION)
+ get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_CXX_COMPILER}" PATH)
+endif ()
+
# if we have a g++ cross compiler, they have usually some prefix, like
# e.g. powerpc-linux-g++, arm-elf-g++ or i586-mingw32msvc-g++ , optionally
# with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2).