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#=============================================================================
# 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 distributed 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 _result _resultDefines)
SET(${_result})
SET(_gccOutput)
FILE(WRITE "${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( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+) *\n *End of (search) list" )
SET(${_result} ${CMAKE_MATCH_1})
STRING(REPLACE "\n" " " ${_result} "${${_result}}")
SEPARATE_ARGUMENTS(${_result})
ENDIF( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+) *\n *End of (search) list" )
IF( "${_gccStdout}" MATCHES "built-in>\"\n(.+)# 1 +\"dummy\"" )
SET(_builtinDefines ${CMAKE_MATCH_1})
# Remove the '# 1 "<command-line>"' lines
STRING(REGEX REPLACE "# 1[^\n]+\n" "" _filteredOutput "${_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)
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