#============================================================================= # 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 in CMakeSystemSpecificInformation.cmake if # the Eclipse CDT4 extra generator has been selected. FIND_PROGRAM(CMAKE_ECLIPSE_EXECUTABLE NAMES eclipse DOC "The Eclipse executable") # The Eclipse generator needs to know the standard include path # so that Eclipse ca 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" ) EXECUTE_PROCESS(COMMAND ${CMAKE_C_COMPILER} -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") 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( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+) *\n *End of (search) list" ) IF( "${_gccStdout}" MATCHES "built-in>\"\n(.+)# 1 +\"dummy\"" ) SET(_builtinDefines ${CMAKE_MATCH_1}) # Remove the '# 1 ""' lines STRING(REGEX REPLACE "# 1[^\n]+\n" "" _filteredOutput "${_builtinDefines}") # Remove the "#define " parts from the output: STRING(REGEX REPLACE "#define " "" _defineRemoved "${_filteredOutput}") # Replace the line breaks with spaces, so we can use separate arguments afterwards STRING(REGEX REPLACE "\n" " " _defineRemoved "${_defineRemoved}") # Remove space at the end, this would produce empty list items STRING(REGEX REPLACE " +$" "" ${_resultDefines} "${_defineRemoved}") SEPARATE_ARGUMENTS(${_resultDefines}) ENDIF( "${_gccStdout}" MATCHES "built-in>\"\n(.+)# 1 +\"dummy\"" ) 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 $ENV{LANG}) IF(_orig_lc_all) SET(ENV{LC_ALL} C) ENDIF(_orig_lc_all) IF(_orig_lc_messages) SET(ENV{LC_MESSAGES} C) ENDIF(_orig_lc_messages) IF(_orig_lang) SET(ENV{LANG} C) ENDIF(_orig_lang) # Now check for C, works for gcc and Intel compiler at least IF (NOT CMAKE_ECLIPSE_C_SYSTEM_INCLUDE_DIRS) IF ("${CMAKE_C_COMPILER_ID}" MATCHES GNU OR "${CMAKE_C_COMPILER_ID}" MATCHES Intel) _DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c _dirs _defines) SET(CMAKE_ECLIPSE_C_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "C compiler system include directories") SET(CMAKE_ECLIPSE_C_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "C compiler system defined macros") ENDIF ("${CMAKE_C_COMPILER_ID}" MATCHES GNU OR "${CMAKE_C_COMPILER_ID}" MATCHES Intel) ENDIF (NOT CMAKE_ECLIPSE_C_SYSTEM_INCLUDE_DIRS) # And now the same for C++ IF (NOT CMAKE_ECLIPSE_CXX_SYSTEM_INCLUDE_DIRS) IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU OR "${CMAKE_CXX_COMPILER_ID}" MATCHES Intel) _DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c++ _dirs _defines) SET(CMAKE_ECLIPSE_CXX_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "CXX compiler system include directories") SET(CMAKE_ECLIPSE_CXX_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "CXX compiler system defined macros") ENDIF ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU OR "${CMAKE_CXX_COMPILER_ID}" MATCHES Intel) ENDIF (NOT CMAKE_ECLIPSE_CXX_SYSTEM_INCLUDE_DIRS) # Restore original LC_ALL, LC_MESSAGES, and LANG IF(_orig_lc_all) SET(ENV{LC_ALL} ${_orig_lc_all}) ENDIF(_orig_lc_all) IF(_orig_lc_messages) SET(ENV{LC_MESSAGES} ${_orig_lc_messages}) ENDIF(_orig_lc_messages) IF(_orig_lang) SET(ENV{LANG} ${_orig_lang}) ENDIF(_orig_lang)