| 1 | # |
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| 2 | # ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | # > www.orxonox.net < |
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| 4 | # |
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| 5 | # This program is free software; you can redistribute it and/or |
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| 6 | # modify it under the terms of the GNU General Public License |
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| 7 | # as published by the Free Software Foundation; either version 2 |
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| 8 | # of the License, or (at your option) any later version. |
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| 9 | # |
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| 10 | # This program is distributed in the hope that it will be useful, |
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| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | # GNU General Public License for more details. |
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| 14 | # |
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| 15 | # You should have received a copy of the GNU General Public License along |
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| 16 | # with this program; if not, write to the Free Software Foundation, |
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| 17 | # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 18 | # |
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| 19 | # |
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| 20 | # Author: |
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| 21 | # Reto Grieder |
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| 22 | # |
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| 23 | |
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| 24 | INCLUDE(GetGCCCompilerFlags) |
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| 25 | |
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| 26 | MACRO(PRECOMPILED_HEADER_FILES_PRE_TARGET _target_name _header_file_arg _sourcefile_var) |
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| 27 | |
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| 28 | GET_FILENAME_COMPONENT(_pch_header_file ${_header_file_arg} ABSOLUTE) |
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| 29 | GET_FILENAME_COMPONENT(_pch_header_filename ${_pch_header_file} NAME) |
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| 30 | GET_FILENAME_COMPONENT(_pch_header_filename_we ${_pch_header_file} NAME_WE) |
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| 31 | |
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| 32 | IF(NOT EXISTS ${_pch_header_file}) |
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| 33 | MESSAGE(FATAL_ERROR "Specified precompiled headerfile '${_header_file_arg}' does not exist.") |
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| 34 | ENDIF() |
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| 35 | |
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| 36 | # Extract arguments from ARGN |
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| 37 | FOREACH(_arg ${ARGN}) |
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| 38 | IF(NOT "${_arg}" STREQUAL "EXCLUDE") |
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| 39 | IF(NOT _arg_second) |
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| 40 | # Source files with PCH support |
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| 41 | SET(_included_files ${_included_files} ${_arg}) |
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| 42 | ELSE() |
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| 43 | # Source files to be excluded from PCH support (easier syntax this way) |
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| 44 | SET(_excluded files ${_excluded_files} ${_arg}) |
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| 45 | ENDIF() |
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| 46 | ELSE() |
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| 47 | SET(_arg_second TRUE) |
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| 48 | ENDIF() |
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| 49 | ENDFOREACH(_arg) |
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| 50 | |
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| 51 | # Use ${_sourcefile_var} if no files were specified explicitely |
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| 52 | IF(NOT _included_files) |
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| 53 | SET(_source_files ${${_sourcefile_var}}) |
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| 54 | ELSE() |
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| 55 | SET(_source_files ${_included_files}) |
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| 56 | ENDIF() |
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| 57 | |
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| 58 | # Exclude files (if specified) |
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| 59 | FOREACH(_file ${_excluded_files}) |
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| 60 | LIST(FIND _source_files ${_file} _list_index) |
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| 61 | IF(_list_index GREATER -1) |
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| 62 | LIST(REMOVE_AT _source_files _list_index) |
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| 63 | ELSE() |
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| 64 | MESSAGE(FATAL_ERROR "Could not exclude file ${_file} in target ${_target_name}") |
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| 65 | ENDIF() |
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| 66 | ENDFOREACH(_file) |
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| 67 | |
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| 68 | LIST(FIND ${_sourcefile_var} ${_pch_header_file} _list_index) |
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| 69 | IF(_list_index EQUAL -1) # Header file could already be included with GET_ALL_HEADER_FILES |
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| 70 | LIST(APPEND ${_sourcefile_var} ${_pch_header_file}) |
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| 71 | ENDIF() |
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| 72 | |
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| 73 | IF(MSVC) |
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| 74 | |
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| 75 | # Write and add one source file, which generates the precompiled header file |
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| 76 | SET(_pch_source_file "${CMAKE_CURRENT_BINARY_DIR}/${_pch_header_filename_we}.cc") |
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| 77 | IF(NOT EXISTS ${_pch_source_file}) |
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| 78 | FILE(WRITE ${_pch_source_file} "#include \"${_pch_header_file}\"\n") |
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| 79 | ENDIF() |
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| 80 | SET_SOURCE_FILES_PROPERTIES(_pch_source_file PROPERTIES GENERATED TRUE) |
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| 81 | LIST(APPEND ${_sourcefile_var} ${_pch_source_file}) |
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| 82 | |
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| 83 | SET(_pch_file "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${_pch_header_filename}.pch") |
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| 84 | # Set compile flags for generated source file |
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| 85 | SET_SOURCE_FILES_PROPERTIES(${_pch_source_file} PROPERTIES COMPILE_FLAGS "/c /Yc\"${_pch_header_file}\" /Fp\"${_pch_file}\"") |
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| 86 | # Set Compile flags for the other source files |
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| 87 | FOREACH(_file ${_source_files}) |
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| 88 | GET_SOURCE_FILE_PROPERTY(_is_header ${_file} HEADER_FILE_ONLY) |
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| 89 | IF(NOT _is_header) |
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| 90 | GET_SOURCE_FILE_PROPERTY(_old_flags ${_file} COMPILE_FLAGS) |
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| 91 | IF(NOT _old_flags) |
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| 92 | SET(_old_flags "") |
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| 93 | ENDIF() |
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| 94 | SET_SOURCE_FILES_PROPERTIES(${_file} PROPERTIES COMPILE_FLAGS "${_old_flags} /FI\"${_pch_header_file}\" /Yu\"${_pch_header_file}\" /Fp\"${_pch_file}\"") |
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| 95 | ENDIF(NOT _is_header) |
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| 96 | ENDFOREACH(_file) |
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| 97 | |
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| 98 | ELSEIF(CMAKE_COMPILER_IS_GNU) |
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| 99 | |
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| 100 | # Append the gch-dir to make sure gcc finds the pch file |
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| 101 | INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR}) |
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| 102 | |
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| 103 | # Set Compile flags for the other source files |
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| 104 | FOREACH(_file ${_source_files}) |
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| 105 | GET_SOURCE_FILE_PROPERTY(_is_header ${_file} HEADER_FILE_ONLY) |
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| 106 | IF(NOT _is_header) |
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| 107 | GET_SOURCE_FILE_PROPERTY(_old_flags ${_file} COMPILE_FLAGS) |
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| 108 | IF(NOT _old_flags) |
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| 109 | SET(_old_flags "") |
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| 110 | ENDIF() |
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| 111 | SET_SOURCE_FILES_PROPERTIES(${_file} PROPERTIES |
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| 112 | COMPILE_FLAGS "${_old_flags} -I ${CMAKE_CURRENT_SOURCE_DIR} -include ${_pch_header_filename}" |
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| 113 | OBJECT_DEPENDS "${_pch_header_file}" |
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| 114 | ) |
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| 115 | ENDIF(NOT _is_header) |
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| 116 | ENDFOREACH(_file) |
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| 117 | |
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| 118 | ENDIF() |
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| 119 | |
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| 120 | ENDMACRO(PRECOMPILED_HEADER_FILES_PRE_TARGET) |
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| 121 | |
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| 122 | FUNCTION(PRECOMPILED_HEADER_FILES_POST_TARGET _target_name) |
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| 123 | # This macro is only necessary for GCC |
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| 124 | IF(CMAKE_COMPILER_IS_GNU) |
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| 125 | |
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| 126 | SET(_pch_file "${CMAKE_CURRENT_BINARY_DIR}/${_pch_header_filename}.gch") |
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| 127 | SET(_pch_dep_helper_file "${CMAKE_CURRENT_BINARY_DIR}/${_target_name}PCHDependencyHelper.h") |
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| 128 | |
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| 129 | # Workaround for distcc |
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| 130 | IF(CMAKE_CXX_COMPILER_ARG1) |
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| 131 | # remove leading space in compiler argument |
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| 132 | STRING(REGEX REPLACE "^ +" "" _pch_cmake_cxx_compiler_arg1 "${CMAKE_CXX_COMPILER_ARG1}") |
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| 133 | ENDIF() |
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| 134 | |
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| 135 | # Get compiler flags of the source files |
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| 136 | GET_GCC_COMPILER_FLAGS(${_target_name} _pch_gcc_flags) |
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| 137 | |
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| 138 | # Make sure we recompile the pch file even if only the flags change |
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| 139 | IF(NOT "${_pch_gcc_flags}" STREQUAL "${_INTERNAL_${_target_name}_PCH_GCC_FLAGS}" OR NOT EXISTS "${_pch_dep_helper_file}") |
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| 140 | SET(_INTERNAL_${_target_name}_PCH_GCC_FLAGS "${_pch_gcc_flags}" CACHE INTERNAL "") |
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| 141 | FILE(WRITE ${_pch_dep_helper_file} "/* ${_pch_gcc_flags} */") |
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| 142 | ENDIF() |
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| 143 | |
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| 144 | # Compile the header file |
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| 145 | ADD_CUSTOM_COMMAND( |
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| 146 | OUTPUT ${_pch_file} |
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| 147 | COMMAND ${CMAKE_CXX_COMPILER} |
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| 148 | ARGS ${pchsupport_compiler_cxx_arg1} ${_pch_gcc_flags} -c -x c++-header -o ${_pch_file} ${_pch_header_file} |
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| 149 | WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} |
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| 150 | DEPENDS ${_pch_dep_helper_file} |
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| 151 | IMPLICIT_DEPENDS CXX ${_pch_header_file} |
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| 152 | VERBATIM |
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| 153 | ) |
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| 154 | ADD_CUSTOM_TARGET(${_target_name}PrecompiledHeader DEPENDS ${_pch_file}) |
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| 155 | ADD_DEPENDENCIES(${_target_name} ${_target_name}PrecompiledHeader) |
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| 156 | |
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| 157 | ENDIF(CMAKE_COMPILER_IS_GNU) |
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| 158 | ENDFUNCTION(PRECOMPILED_HEADER_FILES_POST_TARGET) |
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