| |
| #============================================================================= |
| # Copyright 2009 Kitware, Inc. |
| # |
| # Distributed under the OSI-approved BSD License (the "License"); |
| # see accompanying file Copyright.txt for details. |
| # |
| # This software is distributed WITHOUT ANY WARRANTY; without even the |
| # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| # See the License for more information. |
| #============================================================================= |
| # (To distribute this file outside of CMake, substitute the full |
| # License text for the above reference.) |
| |
| # This file is included by CMakeFindEclipseCDT4.cmake and CMakeFindCodeBlocks.cmake |
| |
| # The Eclipse and the CodeBlocks generators need to know the standard include path |
| # so that they can find the headers at runtime and parsing etc. works better |
| # This is done here by actually running gcc with the options so it prints its |
| # system include directories, which are parsed then and stored in the cache. |
| MACRO(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang _resultIncludeDirs _resultDefines) |
| SET(${_resultIncludeDirs}) |
| SET(_gccOutput) |
| FILE(WRITE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy" "\n" ) |
| |
| IF (${_lang} STREQUAL "c++") |
| SET(_compilerExecutable "${CMAKE_CXX_COMPILER}") |
| SET(_arg1 "${CMAKE_CXX_COMPILER_ARG1}") |
| ELSE () |
| SET(_compilerExecutable "${CMAKE_C_COMPILER}") |
| SET(_arg1 "${CMAKE_C_COMPILER_ARG1}") |
| ENDIF () |
| EXECUTE_PROCESS(COMMAND ${_compilerExecutable} ${_arg1} -v -E -x ${_lang} -dD dummy |
| WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/CMakeFiles |
| ERROR_VARIABLE _gccOutput |
| OUTPUT_VARIABLE _gccStdout ) |
| FILE(REMOVE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy") |
| |
| # First find the system include dirs: |
| IF( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+ *\n) *End of (search) list" ) |
| |
| # split the output into lines and then remove leading and trailing spaces from each of them: |
| STRING(REGEX MATCHALL "[^\n]+\n" _includeLines "${CMAKE_MATCH_1}") |
| FOREACH(nextLine ${_includeLines}) |
| STRING(STRIP "${nextLine}" _includePath) |
| LIST(APPEND ${_resultIncludeDirs} "${_includePath}") |
| ENDFOREACH(nextLine) |
| |
| ENDIF() |
| |
| |
| # now find the builtin macros: |
| STRING(REGEX MATCHALL "#define[^\n]+\n" _defineLines "${_gccStdout}") |
| # A few example lines which the regexp below has to match properly: |
| # #define MAX(a,b) ((a) > (b) ? (a) : (b)) |
| # #define __fastcall __attribute__((__fastcall__)) |
| # #define FOO (23) |
| # #define __UINTMAX_TYPE__ long long unsigned int |
| # #define __UINTMAX_TYPE__ long long unsigned int |
| # #define __i386__ 1 |
| |
| FOREACH(nextLine ${_defineLines}) |
| STRING(REGEX MATCH "^#define +([A-Za-z_][A-Za-z0-9_]*)(\\([^\\)]+\\))? +(.+) *$" _dummy "${nextLine}") |
| SET(_name "${CMAKE_MATCH_1}${CMAKE_MATCH_2}") |
| STRING(STRIP "${CMAKE_MATCH_3}" _value) |
| #MESSAGE(STATUS "m1: -${CMAKE_MATCH_1}- m2: -${CMAKE_MATCH_2}- m3: -${CMAKE_MATCH_3}-") |
| |
| LIST(APPEND ${_resultDefines} "${_name}") |
| IF(_value) |
| LIST(APPEND ${_resultDefines} "${_value}") |
| ELSE() |
| LIST(APPEND ${_resultDefines} " ") |
| ENDIF() |
| ENDFOREACH(nextLine) |
| |
| ENDMACRO(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang) |
| |
| # Save the current LC_ALL, LC_MESSAGES, and LANG environment variables and set them |
| # to "C" that way GCC's "search starts here" text is in English and we can grok it. |
| SET(_orig_lc_all $ENV{LC_ALL}) |
| SET(_orig_lc_messages $ENV{LC_MESSAGES}) |
| SET(_orig_lang $ENV{LANG}) |
| |
| SET(ENV{LC_ALL} C) |
| SET(ENV{LC_MESSAGES} C) |
| SET(ENV{LANG} C) |
| |
| # Now check for C, works for gcc and Intel compiler at least |
| IF (NOT CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS) |
| IF ("${CMAKE_C_COMPILER_ID}" MATCHES GNU OR "${CMAKE_C_COMPILER_ID}" MATCHES Intel) |
| _DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c _dirs _defines) |
| SET(CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "C compiler system include directories") |
| SET(CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "C compiler system defined macros") |
| ENDIF () |
| ENDIF () |
| |
| # And now the same for C++ |
| IF (NOT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS) |
| IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU OR "${CMAKE_CXX_COMPILER_ID}" MATCHES Intel) |
| _DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c++ _dirs _defines) |
| SET(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "CXX compiler system include directories") |
| SET(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "CXX compiler system defined macros") |
| ENDIF () |
| ENDIF () |
| |
| # Restore original LC_ALL, LC_MESSAGES, and LANG |
| SET(ENV{LC_ALL} ${_orig_lc_all}) |
| SET(ENV{LC_MESSAGES} ${_orig_lc_messages}) |
| SET(ENV{LANG} ${_orig_lang}) |