diff options
Diffstat (limited to 'Modules/CMakeDetermineCCompiler.cmake')
| -rw-r--r-- | Modules/CMakeDetermineCCompiler.cmake | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/Modules/CMakeDetermineCCompiler.cmake b/Modules/CMakeDetermineCCompiler.cmake index 032aa49..1432fff 100644 --- a/Modules/CMakeDetermineCCompiler.cmake +++ b/Modules/CMakeDetermineCCompiler.cmake @@ -1,16 +1,22 @@ # 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 CCC first if defined by user, next use +# the cmake variable CMAKE_GENERATOR_CC which can be defined by a generator +# as a default compiler -FIND_PROGRAM(CMAKE_C_COMPILER_FULLPATH NAMES $ENV{CC} gcc cc cl bcc ) +FIND_PROGRAM(CMAKE_C_COMPILER_FULLPATH NAMES $ENV{CC} ${CMAKE_GENERATOR_CC} gcc cc cl bcc ) GET_FILENAME_COMPONENT(CMAKE_C_COMPILER ${CMAKE_C_COMPILER_FULLPATH} NAME_WE) +# set this to notfound right after so that it is searched for each time this +# file is included +SET(CMAKE_C_COMPILER_FULLPATH NOTFOUND CACHE INTERNAL "full path to c compiler" FORCE) FIND_PROGRAM(CMAKE_AR NAMES ar PATHS /bin /usr/bin /usr/local/bin) FIND_PROGRAM(CMAKE_RANLIB NAMES ranlib PATHS /bin /usr/bin /usr/local/bin) IF(NOT CMAKE_RANLIB) - SET(RANLIB :) + SET(CMAKE_RANLIB : CACHE INTERNAL "noop for ranlib") ENDIF(NOT CMAKE_RANLIB) - +MARK_AS_ADVANCED(CMAKE_RANLIB) # test to see if the c compiler is gnu EXEC_PROGRAM(${CMAKE_C_COMPILER} ARGS -E ${CMAKE_ROOT}/Modules/CMakeTestGNU.c OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN) IF(NOT CMAKE_COMPILER_RETURN) @@ -19,6 +25,8 @@ IF(NOT CMAKE_COMPILER_RETURN) ENDIF(${CMAKE_COMPILER_OUTPUT} MATCHES ".*THIS_IS_GNU.*" ) ENDIF(NOT CMAKE_COMPILER_RETURN) + # configure variables set in this file for fast reload later on CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in - ${PROJECT_BINARY_DIR}/CMakeCCompiler.cmake) + ${PROJECT_BINARY_DIR}/CMakeCCompiler.cmake IMMEDIATE) +MARK_AS_ADVANCED(CMAKE_AR CMAKE_C_COMPILER_FULLPATH) |