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source: code/branches/kicklib2/cmake/tools/TargetUtilities.cmake @ 8319

Last change on this file since 8319 was 8319, checked in by rgrieder, 13 years ago

String compare seems different with cmake 2.6.0

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1 #
2 #             ORXONOX - the hottest 3D action shooter ever to exist
3 #                             > www.orxonox.net <
4 #
5 #        This program is free software; you can redistribute it and/or
6 #         modify it under the terms of the GNU General Public License
7 #        as published by the Free Software Foundation; either version 2
8 #            of the License, or (at your option) any later version.
9 #
10 #       This program is distributed in the hope that it will be useful,
11 #        but WITHOUT ANY WARRANTY; without even the implied warranty of
12 #        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 #                 GNU General Public License for more details.
14 #
15 #   You should have received a copy of the GNU General Public License along
16 #      with this program; if not, write to the Free Software Foundation,
17 #     Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
18 #
19 #
20 #  Author:
21 #    Reto Grieder
22 #  Description:
23 #    Adds a library or an executable like ADD_LIBRARY/ADD_EXECUTABLE, but
24 #    accepts a lot more input information. Simply supply the keywords
25 #    described below in any order you wish.
26 #    The output is then stored in "_arg_ARGNAME" where ARGNAME is the the
27 #    name of the switch or list.
28 #
29 #    Switches: (when given --> TRUE, FALSE otherwise)
30 #      FIND_HEADER_FILES: Searches the current directory for all header files
31 #                         and adds them to the target.
32 #      EXCLUDE_FROM_ALL:  Inherited from ADD_LIBRARY/ADD_EXECUTABLE
33 #      ORXONOX_EXTERNAL:  Specify this for third party libraries
34 #      NO_DLL_INTERFACE:  Link statically with MSVC
35 #      NO_SOURCE_GROUPS:  Don't create msvc source groups
36 #      MODULE:            For dynamic module libraries (libraries only)
37 #      WIN32:             Inherited from ADD_EXECUTABLE (executables only)
38 #      PCH_NO_DEFAULT:    Do not make precompiled header files default if
39 #                         specified with PCH_FILE
40 #      NO_INSTALL:        Do not install the target at all
41 #      NO_VERSION:        Prevents adding any version to a target
42 #
43 #    Lists:
44 #      LINK_LIBRARIES:    Redirects to TARGET_LINK_LIBRARIES
45 #      VERSION:           Set version to the binary
46 #      SOURCE_FILES:      Source files for the target
47 #      DEFINE_SYMBOL:     Sets the DEFINE_SYMBOL target property
48 #      TOLUA_FILES:       Files with tolua interface
49 #      PCH_FILE:          Precompiled header file
50 #      PCH_EXCLUDE:       Source files to be excluded from PCH support
51 #      OUTPUT_NAME:       If you want a different name than the target name
52 #  Note:
53 #    This function also installs the target!
54 #  Prerequisistes:
55 #    ORXONOX_DEFAULT_LINK
56 #  Parameters:
57 #    _target_name, ARGN for the macro arguments
58 #
59
60INCLUDE(CMakeDependentOption)
61INCLUDE(CapitaliseName)
62INCLUDE(GenerateToluaBindings)
63INCLUDE(ParseMacroArguments)
64INCLUDE(SourceFileUtilities)
65IF(PCH_COMPILER_SUPPORT)
66  INCLUDE(PrecompiledHeaderFiles)
67ENDIF()
68
69MACRO(ORXONOX_ADD_LIBRARY _target_name)
70  TU_ADD_TARGET(${_target_name} LIBRARY "MODULE" ${ARGN})
71ENDMACRO(ORXONOX_ADD_LIBRARY)
72
73MACRO(ORXONOX_ADD_EXECUTABLE _target_name)
74  TU_ADD_TARGET(${_target_name} EXECUTABLE "WIN32" ${ARGN})
75ENDMACRO(ORXONOX_ADD_EXECUTABLE)
76
77
78MACRO(TU_ADD_TARGET _target_name _target_type _additional_switches)
79  CAPITALISE_NAME(${_target_name} _target_name_capitalised)
80  STRING(TOUPPER "${_target_name}" _target_name_upper)
81
82  # Specify all possible options (either switch or with add. arguments)
83  SET(_switches   FIND_HEADER_FILES  EXCLUDE_FROM_ALL  ORXONOX_EXTERNAL
84                  NO_DLL_INTERFACE   NO_SOURCE_GROUPS  PCH_NO_DEFAULT 
85                  NO_INSTALL         NO_VERSION        ${_additional_switches})
86  SET(_list_names LINK_LIBRARIES     VERSION           SOURCE_FILES
87                  DEFINE_SYMBOL      TOLUA_FILES       PCH_FILE
88                  PCH_EXCLUDE        OUTPUT_NAME)
89
90  PARSE_MACRO_ARGUMENTS("${_switches}" "${_list_names}" ${ARGN})
91
92  # Process source files with support for compilations
93  # Note: All file paths are relative to the root source directory, even the
94  #       name of the compilation file.
95  SET(_${_target_name}_source_files)
96  SET(_get_compilation_file FALSE)
97  SET(_add_to_compilation FALSE)
98  FOREACH(_file ${_arg_SOURCE_FILES})
99    IF(_file STREQUAL "COMPILATION_BEGIN")
100      # Next file is the name of the compilation
101      SET(_get_compilation_file TRUE)
102    ELSEIF(_file STREQUAL "COMPILATION_END")
103      IF(NOT _compilation_file)
104        MESSAGE(FATAL_ERROR "No name provided for source file compilation")
105      ENDIF()
106      IF(NOT DISABLE_COMPILATIONS)
107        IF(NOT _compilation_include_string)
108          MESSAGE(STATUS "Warning: Empty source file compilation!")
109        ENDIF()
110        IF(EXISTS ${_compilation_file})
111          FILE(READ ${_compilation_file} _include_string_file)
112        ENDIF()
113        IF(NOT _compilation_include_string STREQUAL "${_include_string_file}")
114          FILE(WRITE ${_compilation_file} "${_compilation_include_string}")
115        ENDIF()
116        LIST(APPEND _${_target_name}_source_files ${_compilation_file})
117      ENDIF()
118      SET(_add_to_compilation FALSE)
119    ELSEIF(_get_compilation_file)
120      SET(_compilation_file ${CMAKE_BINARY_DIR}/${_file})
121      SET(_get_compilation_file FALSE)
122      SET(_add_to_compilation TRUE)
123      SET(_compilation_include_string)
124    ELSE()
125      # Default, add source file
126
127      # Prepare relative paths
128      IF(NOT _file MATCHES "^(.\\:|\\/)")
129        # Path can be relative to the current source directory if the file was
130        # not added with the source file macros. Otherwise there is a "./" at
131        # the beginning of each file and the filename is relative
132        # to the CMAKE_SOURCE_DIR
133        STRING(REGEX REPLACE "^\\.\\/(.+)$" "\\1" _temp ${_file})
134        IF(NOT ${_temp} STREQUAL ${_file})
135          SET(_file ${CMAKE_SOURCE_DIR}/${_temp})
136        ELSE()
137          SET(_file ${CMAKE_CURRENT_SOURCE_DIR}/${_file})
138        ENDIF()
139      ENDIF()
140
141      LIST(APPEND _${_target_name}_source_files ${_file})
142
143      # Handle compilations
144      IF(_add_to_compilation AND NOT DISABLE_COMPILATIONS)
145        IF(_file MATCHES "\\.(c|cc|cpp|cxx)$")
146          SET(_compilation_include_string "${_compilation_include_string}#include \"${_file}\"\n")
147        ENDIF()
148        # Don't compile these files, even if they are source files
149        SET_SOURCE_FILES_PROPERTIES(${_file} PROPERTIES HEADER_FILE_ONLY TRUE)
150      ENDIF()
151    ENDIF()
152  ENDFOREACH(_file)
153
154  # Assemble all header files of the library
155  IF(_arg_FIND_HEADER_FILES)
156    GET_ALL_HEADER_FILES(_${_target_name}_header_files)
157  ENDIF()
158
159  # Combine source and header files
160  SET(_${_target_name}_files
161    ${_${_target_name}_header_files}
162    ${_${_target_name}_source_files}
163  )
164  # Remove potential duplicates
165  LIST(REMOVE_DUPLICATES _${_target_name}_files)
166
167  # TOLUA_FILES
168  IF(_arg_TOLUA_FILES)
169    GENERATE_TOLUA_BINDINGS(${_target_name_capitalised} _${_target_name}_files
170                            INPUTFILES ${_arg_TOLUA_FILES})
171    # Workaround for XCode: The folder where the bind files are written to has
172    # to be present beforehand.
173    IF(CMAKE_CONFIGURATION_TYPES)
174      FOREACH(_dir ${CMAKE_CONFIGURATION_TYPES})
175        FILE(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${_dir})
176      ENDFOREACH(_dir)
177    ENDIF()
178  ENDIF()
179
180  # First part (pre target) of precompiled header files
181  IF(PCH_COMPILER_SUPPORT AND _arg_PCH_FILE)
182    # Provide convenient option to control PCH
183    IF(_arg_PCH_NO_DEFAULT)
184      SET(PCH_DEFAULT FALSE)
185    ELSE()
186      SET(PCH_DEFAULT TRUE)
187    ENDIF()
188    CMAKE_DEPENDENT_OPTION(PCH_ENABLE_${_target_name_upper}
189      "Enable using precompiled header files for library ${_target_name}." ${PCH_DEFAULT} PCH_ENABLE OFF)
190
191    IF(PCH_ENABLE_${_target_name_upper})
192      PRECOMPILED_HEADER_FILES_PRE_TARGET(${_target_name} ${_arg_PCH_FILE} _${_target_name}_files EXCLUDE ${_arg_PCH_EXCLUDE})
193    ENDIF()
194  ENDIF()
195
196  # Generate the source groups
197  IF(MSVC AND NOT _arg_NO_SOURCE_GROUPS)
198    GENERATE_SOURCE_GROUPS(${_${_target_name}_files})
199
200    IF(NOT _arg_ORXONOX_EXTERNAL)
201      # Move the ...Prereqs.h and the PCH files to the 'Config' section
202      IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${_target_name_capitalised}Prereqs.h)
203        SOURCE_GROUP("Config" FILES ${_target_name_capitalised}Prereqs.h)
204      ENDIF()
205      IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${_arg_PCH_FILE})
206        SOURCE_GROUP("Config" FILES ${CMAKE_CURRENT_SOURCE_DIR}/${_arg_PCH_FILE})
207      ENDIF()
208    ENDIF()
209  ENDIF()
210
211  # Set link mode (SHARED/STATIC)
212  IF(MSVC AND _arg_NO_DLL_INTERFACE)
213    # Certain libraries don't have dllexport/dllimport and can't be linked shared with MSVC
214    SET(_link_mode STATIC)
215  ELSEIF(_arg_ORXONOX_EXTERNAL)
216    # Externals can be linked shared or statically
217    SET(_link_mode ${ORXONOX_EXTERNAL_LINK_MODE})
218  ELSE()
219    # All our own libraries are linked dynamically because of static symbols
220    SET(_link_mode SHARED)
221  ENDIF()
222
223  # No warnings needed from third party libraries
224  IF(_arg_ORXONOX_EXTERNAL)
225    REMOVE_COMPILER_FLAGS("-W3 -W4" MSVC)
226    ADD_COMPILER_FLAGS("-w" NOT MSVC)
227    ADD_COMPILER_FLAGS("-W0" MSVC)
228  ENDIF()
229
230  # Don't compile header files
231  FOREACH(_file ${_${_target_name}_files})
232    IF(NOT _file MATCHES "\\.(c|cc|cpp|cxx|mm)$")
233      SET_SOURCE_FILES_PROPERTIES(${_file} PROPERTIES HEADER_FILE_ONLY TRUE)
234    ENDIF()
235  ENDFOREACH(_file)
236
237
238
239  # Add the library/executable
240  IF("${_target_type}" STREQUAL "LIBRARY")
241    ADD_LIBRARY(${_target_name} ${_link_mode}
242                ${_arg_EXCLUDE_FROM_ALL} ${_${_target_name}_files})
243  ELSE()
244    ADD_EXECUTABLE(${_target_name} ${_arg_WIN32} ${_arg_EXCLUDE_FROM_ALL}
245                   ${_${_target_name}_files})
246  ENDIF()
247
248
249
250  # Change library prefix to "lib"
251  IF(MSVC AND ${_target_type} STREQUAL "LIBRARY")
252    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES
253      PREFIX "lib"
254    )
255  ENDIF()
256
257  # MSVC hack to exclude external library sources from the intellisense database
258  # (IntelliSense stops working when adding "-Zm1000" as compile flag. "/Zm1000"
259  # would not work because of the slash)
260  IF(_arg_ORXONOX_EXTERNAL AND MSVC)
261    GET_TARGET_PROPERTY(_compile_flags ${_target_name} COMPILE_FLAGS)
262    IF(NOT _compile_flags)
263      SET(_compile_flags)
264    ENDIF()
265    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES COMPILE_FLAGS "${_compile_flags} -Zm1000")
266  ENDIF()
267
268  # Configure modules
269  IF (_arg_MODULE)
270    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES
271      RUNTIME_OUTPUT_DIRECTORY ${CMAKE_MODULE_OUTPUT_DIRECTORY} # Windows
272      LIBRARY_OUTPUT_DIRECTORY ${CMAKE_MODULE_OUTPUT_DIRECTORY} # Unix
273    )
274    ADD_MODULE(${_target_name})
275    # Ensure that the main program depends on the module
276    SET(ORXONOX_MODULES ${ORXONOX_MODULES} ${_target_name} CACHE INTERNAL "")
277  ENDIF()
278
279  # Static library flags are not globally available
280  IF(ORXONOX_STATIC_LINKER_FLAGS)
281    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES STATIC_LIBRARY_FLAGS ${ORXONOX_STATIC_LINKER_FLAGS})
282  ENDIF()
283
284  # LINK_LIBRARIES
285  IF(_arg_LINK_LIBRARIES)
286    TARGET_LINK_LIBRARIES(${_target_name} ${_arg_LINK_LIBRARIES})
287  ENDIF()
288
289  # RPATH settings for the installation
290  IF("${_target_type}" STREQUAL "LIBRARY")
291    IF(_arg_MODULE)
292      SET(_rpath "${MODULE_RPATH}")
293    ELSE()
294      SET(_rpath "${LIBRARY_RPATH}")
295    ENDIF()
296  ELSE()
297    SET(_rpath "${RUNTIME_RPATH}")
298  ENDIF()
299  SET_TARGET_PROPERTIES(${_target_name} PROPERTIES INSTALL_RPATH "${_rpath}")
300
301  # DEFINE_SYMBOL
302  IF(_arg_DEFINE_SYMBOL)
303    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES DEFINE_SYMBOL ${_arg_DEFINE_SYMBOL})
304  ELSEIF(NOT _arg_ORXONOX_EXTERNAL)
305    # Automatically add the macro definitions for our own libraries
306    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES DEFINE_SYMBOL "${_target_name_upper}_SHARED_BUILD")
307  ENDIF()
308
309  # VERSION
310  IF(_arg_VERSION)
311    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES VERSION ${_arg_VERSION})
312  ELSEIF(NOT _arg_ORXONOX_EXTERNAL AND NOT _arg_NO_VERSION AND NOT ${_target_type} STREQUAL "EXECUTABLE")
313    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES VERSION ${ORXONOX_VERSION})
314  ENDIF()
315
316  # OUTPUT_NAME
317  IF(_arg_OUTPUT_NAME)
318    SET_TARGET_PROPERTIES(${_target_name} PROPERTIES OUTPUT_NAME  ${_arg_OUTPUT_NAME})
319  ENDIF()
320
321  # Second part of precompiled header files
322  IF(PCH_COMPILER_SUPPORT AND PCH_ENABLE_${_target_name_upper} AND _arg_PCH_FILE)
323    PRECOMPILED_HEADER_FILES_POST_TARGET(${_target_name} ${_arg_PCH_FILE})
324  ENDIF()
325
326  # Install all targets except for static ones (executables also have SHARED in _link_mode)
327  IF(${_link_mode} STREQUAL "SHARED" AND NOT _arg_NO_INSTALL)
328    IF(_arg_MODULE)
329      INSTALL(TARGETS ${_target_name}
330        RUNTIME DESTINATION ${MODULE_INSTALL_DIRECTORY}
331        LIBRARY DESTINATION ${MODULE_INSTALL_DIRECTORY}
332      )
333    ELSE()
334      INSTALL(TARGETS ${_target_name}
335        RUNTIME DESTINATION ${RUNTIME_INSTALL_DIRECTORY}
336        LIBRARY DESTINATION ${LIBRARY_INSTALL_DIRECTORY}
337      )
338    ENDIF()
339  ENDIF()
340
341ENDMACRO(TU_ADD_TARGET)
342
343
344# Creates a helper file with name <name_of_the_library>${ORXONOX_MODULE_EXTENSION}
345# This helps finding dynamically loadable modules at runtime
346
347FUNCTION(ADD_MODULE _target)
348  # We use the properties to get the name because the librarys name may differ from
349  # the target name (for example orxonox <-> liborxonox)
350
351  GET_TARGET_PROPERTY(_target_loc ${_target} LOCATION)
352  GET_FILENAME_COMPONENT(_target_name ${_target_loc} NAME_WE)
353
354  IF(CMAKE_CONFIGURATION_TYPES)
355    FOREACH(_config ${CMAKE_CONFIGURATION_TYPES})
356      SET(_module_filename ${CMAKE_MODULE_OUTPUT_DIRECTORY}/${_config}/${_target_name}${ORXONOX_MODULE_EXTENSION})
357
358      FILE(WRITE ${_module_filename})
359
360      INSTALL(
361        FILES ${_module_filename}
362        DESTINATION ${MODULE_INSTALL_DIRECTORY}
363        CONFIGURATIONS ${_config}
364      )
365    ENDFOREACH()
366  ELSE()
367    SET(_module_filename ${CMAKE_MODULE_OUTPUT_DIRECTORY}/${_target_name}${ORXONOX_MODULE_EXTENSION})
368
369    FILE(WRITE ${_module_filename})
370
371    INSTALL(
372      FILES ${_module_filename}
373      DESTINATION ${MODULE_INSTALL_DIRECTORY}
374    )
375  ENDIF()
376ENDFUNCTION(ADD_MODULE)
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