diff options
Diffstat (limited to 'Modules/CMakeDetermineCCompiler.cmake')
| -rw-r--r-- | Modules/CMakeDetermineCCompiler.cmake | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/Modules/CMakeDetermineCCompiler.cmake b/Modules/CMakeDetermineCCompiler.cmake index 639b426..06664c1 100644 --- a/Modules/CMakeDetermineCCompiler.cmake +++ b/Modules/CMakeDetermineCCompiler.cmake @@ -15,14 +15,14 @@ # determine the compiler to use for C programs # NOTE, a generator may set CMAKE_C_COMPILER before # loading this file to force a compiler. -# use environment variable CC first if defined by user, next use +# use environment variable CC first if defined by user, next use # the cmake variable CMAKE_GENERATOR_CC which can be defined by a generator # as a default compiler -# If the internal cmake variable _CMAKE_TOOLCHAIN_PREFIX is set, this is used +# If the internal cmake variable _CMAKE_TOOLCHAIN_PREFIX is set, this is used # as prefix for the tools (e.g. arm-elf-gcc, arm-elf-ar etc.). This works # currently with the GNU crosscompilers. # -# Sets the following variables: +# Sets the following variables: # CMAKE_C_COMPILER # CMAKE_AR # CMAKE_RANLIB @@ -41,12 +41,12 @@ IF(NOT CMAKE_C_COMPILER) 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}.") + 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(CMAKE_GENERATOR_CC) IF(NOT CMAKE_C_COMPILER_INIT) SET(CMAKE_C_COMPILER_INIT ${CMAKE_GENERATOR_CC}) ENDIF(NOT CMAKE_C_COMPILER_INIT) @@ -64,7 +64,7 @@ IF(NOT CMAKE_C_COMPILER) 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) @@ -72,7 +72,7 @@ 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 + # 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) @@ -81,9 +81,9 @@ ELSE(NOT CMAKE_C_COMPILER) LIST(GET CMAKE_C_COMPILER 0 CMAKE_C_COMPILER) ENDIF("${_CMAKE_C_COMPILER_LIST_LENGTH}" EQUAL 2) - # if a compiler was specified by the user but without path, + # if a compiler was specified by the user but without path, # now try to find it with the full path - # if it is found, force it into the cache, + # if it is found, force it into the cache, # if not, don't overwrite the setting (which was given by the user) with "NOTFOUND" # if the C compiler already had a path, reuse it for searching the CXX compiler GET_FILENAME_COMPONENT(_CMAKE_USER_C_COMPILER_PATH "${CMAKE_C_COMPILER}" PATH) @@ -143,19 +143,20 @@ IF(NOT CMAKE_C_COMPILER_ID_RUN) ENDIF("${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW") ENDIF(NOT CMAKE_C_COMPILER_ID_RUN) -# If we have a gcc cross compiler, they have usually some prefix, like -# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc . +# If we have a gcc cross compiler, they have usually some prefix, like +# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc, optionally +# with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2). # The other tools of the toolchain usually have the same prefix # NAME_WE cannot be used since then this test will fail for names lile -# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be +# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be # "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-" -IF (CMAKE_CROSSCOMPILING +IF (CMAKE_CROSSCOMPILING AND "${CMAKE_C_COMPILER_ID}" MATCHES "GNU" AND NOT _CMAKE_TOOLCHAIN_PREFIX) GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME) - IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(\\.exe)?$") + IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$") SET(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1}) - ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(\\.exe)?$") + ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$") # 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.) @@ -163,7 +164,7 @@ IF (CMAKE_CROSSCOMPILING SET(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1}) ENDIF ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$") -ENDIF (CMAKE_CROSSCOMPILING +ENDIF (CMAKE_CROSSCOMPILING AND "${CMAKE_C_COMPILER_ID}" MATCHES "GNU" AND NOT _CMAKE_TOOLCHAIN_PREFIX) @@ -179,5 +180,5 @@ ENDIF(MSVC_C_ARCHITECTURE_ID) CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in "${CMAKE_PLATFORM_ROOT_BIN}/CMakeCCompiler.cmake" @ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0 - ) + ) SET(CMAKE_C_COMPILER_ENV_VAR "CC") |