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-rw-r--r--Modules/CMakeDetermineCCompiler.cmake224
1 files changed, 110 insertions, 114 deletions
diff --git a/Modules/CMakeDetermineCCompiler.cmake b/Modules/CMakeDetermineCCompiler.cmake
index 9028e8e..275fc47 100644
--- a/Modules/CMakeDetermineCCompiler.cmake
+++ b/Modules/CMakeDetermineCCompiler.cmake
@@ -31,114 +31,112 @@
# If not already set before, it also sets
# _CMAKE_TOOLCHAIN_PREFIX
-IF(NOT CMAKE_C_COMPILER)
- SET(CMAKE_C_COMPILER_INIT NOTFOUND)
-
- # prefer the environment variable CC
- IF($ENV{CC} MATCHES ".+")
- GET_FILENAME_COMPONENT(CMAKE_C_COMPILER_INIT $ENV{CC} PROGRAM PROGRAM_ARGS CMAKE_C_FLAGS_ENV_INIT)
- IF(CMAKE_C_FLAGS_ENV_INIT)
- SET(CMAKE_C_COMPILER_ARG1 "${CMAKE_C_FLAGS_ENV_INIT}" CACHE STRING "First argument to C compiler")
- ENDIF(CMAKE_C_FLAGS_ENV_INIT)
- IF(NOT EXISTS ${CMAKE_C_COMPILER_INIT})
- MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable CC:\n$ENV{CC}.")
- ENDIF(NOT EXISTS ${CMAKE_C_COMPILER_INIT})
- ENDIF($ENV{CC} MATCHES ".+")
-
- # next try prefer the compiler specified by the generator
- IF(CMAKE_GENERATOR_CC)
- IF(NOT CMAKE_C_COMPILER_INIT)
- SET(CMAKE_C_COMPILER_INIT ${CMAKE_GENERATOR_CC})
- ENDIF(NOT CMAKE_C_COMPILER_INIT)
- ENDIF(CMAKE_GENERATOR_CC)
-
- # finally list compilers to try
- IF(CMAKE_C_COMPILER_INIT)
- SET(CMAKE_C_COMPILER_LIST ${CMAKE_C_COMPILER_INIT})
- ELSE(CMAKE_C_COMPILER_INIT)
- SET(CMAKE_C_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}gcc ${_CMAKE_TOOLCHAIN_PREFIX}cc cl bcc xlc)
- ENDIF(CMAKE_C_COMPILER_INIT)
-
- # Find the compiler.
- IF (_CMAKE_USER_CXX_COMPILER_PATH)
- FIND_PROGRAM(CMAKE_C_COMPILER NAMES ${CMAKE_C_COMPILER_LIST} PATHS ${_CMAKE_USER_CXX_COMPILER_PATH} DOC "C compiler" NO_DEFAULT_PATH)
- ENDIF (_CMAKE_USER_CXX_COMPILER_PATH)
- FIND_PROGRAM(CMAKE_C_COMPILER NAMES ${CMAKE_C_COMPILER_LIST} DOC "C compiler")
-
- IF(CMAKE_C_COMPILER_INIT AND NOT CMAKE_C_COMPILER)
- SET(CMAKE_C_COMPILER "${CMAKE_C_COMPILER_INIT}" CACHE FILEPATH "C compiler" FORCE)
- ENDIF(CMAKE_C_COMPILER_INIT AND NOT CMAKE_C_COMPILER)
-ELSE(NOT CMAKE_C_COMPILER)
-
- # we only get here if CMAKE_C_COMPILER was specified using -D or a pre-made CMakeCache.txt
- # (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
- # if CMAKE_C_COMPILER is a list of length 2, use the first item as
- # CMAKE_C_COMPILER and the 2nd one as CMAKE_C_COMPILER_ARG1
-
- LIST(LENGTH CMAKE_C_COMPILER _CMAKE_C_COMPILER_LIST_LENGTH)
- IF("${_CMAKE_C_COMPILER_LIST_LENGTH}" EQUAL 2)
- LIST(GET CMAKE_C_COMPILER 1 CMAKE_C_COMPILER_ARG1)
- LIST(GET CMAKE_C_COMPILER 0 CMAKE_C_COMPILER)
- ENDIF("${_CMAKE_C_COMPILER_LIST_LENGTH}" EQUAL 2)
-
- # 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 C compiler already had a path, reuse it for searching the CXX compiler
- GET_FILENAME_COMPONENT(_CMAKE_USER_C_COMPILER_PATH "${CMAKE_C_COMPILER}" PATH)
- IF(NOT _CMAKE_USER_C_COMPILER_PATH)
- FIND_PROGRAM(CMAKE_C_COMPILER_WITH_PATH NAMES ${CMAKE_C_COMPILER})
- MARK_AS_ADVANCED(CMAKE_C_COMPILER_WITH_PATH)
- IF(CMAKE_C_COMPILER_WITH_PATH)
- SET(CMAKE_C_COMPILER ${CMAKE_C_COMPILER_WITH_PATH} CACHE STRING "C compiler" FORCE)
- ENDIF(CMAKE_C_COMPILER_WITH_PATH)
- ENDIF(NOT _CMAKE_USER_C_COMPILER_PATH)
-ENDIF(NOT CMAKE_C_COMPILER)
-MARK_AS_ADVANCED(CMAKE_C_COMPILER)
-
-IF (NOT _CMAKE_TOOLCHAIN_LOCATION)
- GET_FILENAME_COMPONENT(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_C_COMPILER}" PATH)
-ENDIF (NOT _CMAKE_TOOLCHAIN_LOCATION)
-
-# Build a small source file to identify the compiler.
-IF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
- SET(CMAKE_C_COMPILER_ID_RUN 1)
- SET(CMAKE_C_PLATFORM_ID "Windows")
- SET(CMAKE_C_COMPILER_ID "MSVC")
-ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
-
-IF(NOT CMAKE_C_COMPILER_ID_RUN)
- SET(CMAKE_C_COMPILER_ID_RUN 1)
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
+
+# Load system-specific compiler preferences for this language.
+include(Platform/${CMAKE_SYSTEM_NAME}-C OPTIONAL)
+if(NOT CMAKE_C_COMPILER_NAMES)
+ set(CMAKE_C_COMPILER_NAMES cc)
+endif()
+
+if(${CMAKE_GENERATOR} MATCHES "Visual Studio")
+elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
+ set(CMAKE_C_COMPILER_XCODE_TYPE sourcecode.c.c)
+else()
+ if(NOT CMAKE_C_COMPILER)
+ set(CMAKE_C_COMPILER_INIT NOTFOUND)
+
+ # prefer the environment variable CC
+ if($ENV{CC} MATCHES ".+")
+ get_filename_component(CMAKE_C_COMPILER_INIT $ENV{CC} PROGRAM PROGRAM_ARGS CMAKE_C_FLAGS_ENV_INIT)
+ if(CMAKE_C_FLAGS_ENV_INIT)
+ set(CMAKE_C_COMPILER_ARG1 "${CMAKE_C_FLAGS_ENV_INIT}" CACHE STRING "First argument to C compiler")
+ endif()
+ if(NOT EXISTS ${CMAKE_C_COMPILER_INIT})
+ message(FATAL_ERROR "Could not find compiler set in environment variable CC:\n$ENV{CC}.")
+ endif()
+ endif()
+
+ # next try prefer the compiler specified by the generator
+ if(CMAKE_GENERATOR_CC)
+ if(NOT CMAKE_C_COMPILER_INIT)
+ set(CMAKE_C_COMPILER_INIT ${CMAKE_GENERATOR_CC})
+ endif()
+ endif()
+
+ # finally list compilers to try
+ if(NOT CMAKE_C_COMPILER_INIT)
+ set(CMAKE_C_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}cc ${_CMAKE_TOOLCHAIN_PREFIX}gcc cl bcc xlc clang)
+ endif()
+
+ _cmake_find_compiler(C)
+
+ else()
+
+ # we only get here if CMAKE_C_COMPILER was specified using -D or a pre-made CMakeCache.txt
+ # (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
+ # if CMAKE_C_COMPILER is a list of length 2, use the first item as
+ # CMAKE_C_COMPILER and the 2nd one as CMAKE_C_COMPILER_ARG1
+
+ list(LENGTH CMAKE_C_COMPILER _CMAKE_C_COMPILER_LIST_LENGTH)
+ if("${_CMAKE_C_COMPILER_LIST_LENGTH}" EQUAL 2)
+ list(GET CMAKE_C_COMPILER 1 CMAKE_C_COMPILER_ARG1)
+ list(GET CMAKE_C_COMPILER 0 CMAKE_C_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 C compiler already had a path, reuse it for searching the CXX compiler
+ get_filename_component(_CMAKE_USER_C_COMPILER_PATH "${CMAKE_C_COMPILER}" PATH)
+ if(NOT _CMAKE_USER_C_COMPILER_PATH)
+ find_program(CMAKE_C_COMPILER_WITH_PATH NAMES ${CMAKE_C_COMPILER})
+ mark_as_advanced(CMAKE_C_COMPILER_WITH_PATH)
+ if(CMAKE_C_COMPILER_WITH_PATH)
+ set(CMAKE_C_COMPILER ${CMAKE_C_COMPILER_WITH_PATH} CACHE STRING "C compiler" FORCE)
+ endif()
+ endif()
+ endif()
+ mark_as_advanced(CMAKE_C_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
# a valid identification file.
- SET(CMAKE_C_COMPILER_ID_TEST_FLAGS
+ set(CMAKE_C_COMPILER_ID_TEST_FLAGS
# Try compiling to an object file only.
"-c"
# Try enabling ANSI mode on HP.
"-Aa"
)
+endif()
+
+# Build a small source file to identify the compiler.
+if(NOT CMAKE_C_COMPILER_ID_RUN)
+ set(CMAKE_C_COMPILER_ID_RUN 1)
# Try to identify the compiler.
- SET(CMAKE_C_COMPILER_ID)
- FILE(READ ${CMAKE_ROOT}/Modules/CMakePlatformId.h.in
+ set(CMAKE_C_COMPILER_ID)
+ file(READ ${CMAKE_ROOT}/Modules/CMakePlatformId.h.in
CMAKE_C_COMPILER_ID_PLATFORM_CONTENT)
- INCLUDE(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
+ include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
CMAKE_DETERMINE_COMPILER_ID(C CFLAGS CMakeCCompilerId.c)
# Set old compiler and platform id variables.
- IF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
- SET(CMAKE_COMPILER_IS_GNUCC 1)
- ENDIF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
- IF("${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
- SET(CMAKE_COMPILER_IS_MINGW 1)
- ELSEIF("${CMAKE_C_PLATFORM_ID}" MATCHES "Cygwin")
- SET(CMAKE_COMPILER_IS_CYGWIN 1)
- ENDIF("${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
-ENDIF(NOT CMAKE_C_COMPILER_ID_RUN)
+ if("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
+ set(CMAKE_COMPILER_IS_GNUCC 1)
+ endif()
+ if("${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
+ set(CMAKE_COMPILER_IS_MINGW 1)
+ elseif("${CMAKE_C_PLATFORM_ID}" MATCHES "Cygwin")
+ set(CMAKE_COMPILER_IS_CYGWIN 1)
+ endif()
+endif()
+
+if (NOT _CMAKE_TOOLCHAIN_LOCATION)
+ get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_C_COMPILER}" PATH)
+endif ()
# If we have a gcc cross compiler, they have usually some prefix, like
# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc, optionally
@@ -147,33 +145,31 @@ ENDIF(NOT CMAKE_C_COMPILER_ID_RUN)
# NAME_WE cannot be used since then this test will fail for names lile
# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
-IF (CMAKE_CROSSCOMPILING
+if (CMAKE_CROSSCOMPILING
AND "${CMAKE_C_COMPILER_ID}" MATCHES "GNU"
AND NOT _CMAKE_TOOLCHAIN_PREFIX)
- GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME)
- IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
- SET(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
- ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
+ get_filename_component(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME)
+ if (COMPILER_BASENAME MATCHES "^(.+-)g?cc(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$")
+ set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
+ endif ()
# if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils
# but uses the regular ar, objcopy, etc. (instead of llvm-objcopy etc.)
- IF ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
- SET(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
- ENDIF ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
-
-ENDIF (CMAKE_CROSSCOMPILING
- AND "${CMAKE_C_COMPILER_ID}" MATCHES "GNU"
- AND NOT _CMAKE_TOOLCHAIN_PREFIX)
-
-INCLUDE(${CMAKE_ROOT}/Modules/CMakeClDeps.cmake)
-INCLUDE(CMakeFindBinUtils)
-IF(MSVC_C_ARCHITECTURE_ID)
- SET(SET_MSVC_C_ARCHITECTURE_ID
- "SET(MSVC_C_ARCHITECTURE_ID ${MSVC_C_ARCHITECTURE_ID})")
-ENDIF(MSVC_C_ARCHITECTURE_ID)
+ if ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
+ set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
+ endif ()
+
+endif ()
+
+include(${CMAKE_ROOT}/Modules/CMakeClDeps.cmake)
+include(CMakeFindBinUtils)
+if(MSVC_C_ARCHITECTURE_ID)
+ set(SET_MSVC_C_ARCHITECTURE_ID
+ "set(MSVC_C_ARCHITECTURE_ID ${MSVC_C_ARCHITECTURE_ID})")
+endif()
# configure variables set in this file for fast reload later on
-CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in
- "${CMAKE_PLATFORM_ROOT_BIN}/CMakeCCompiler.cmake"
+configure_file(${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in
+ ${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake
@ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0
)
-SET(CMAKE_C_COMPILER_ENV_VAR "CC")
+set(CMAKE_C_COMPILER_ENV_VAR "CC")