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Diffstat (limited to 'cmake/FindSDL2.cmake')
-rw-r--r-- | cmake/FindSDL2.cmake | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/cmake/FindSDL2.cmake b/cmake/FindSDL2.cmake new file mode 100644 index 0000000..f9ebcf3 --- /dev/null +++ b/cmake/FindSDL2.cmake | |||
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1 | # Locate SDL2 library | ||
2 | # This module defines | ||
3 | # SDL2_LIBRARY, the name of the library to link against | ||
4 | # SDL2_FOUND, if false, do not try to link to SDL2 | ||
5 | # SDL2_INCLUDE_DIR, where to find SDL.h | ||
6 | # | ||
7 | # This module responds to the the flag: | ||
8 | # SDL2_BUILDING_LIBRARY | ||
9 | # If this is defined, then no SDL2_main will be linked in because | ||
10 | # only applications need main(). | ||
11 | # Otherwise, it is assumed you are building an application and this | ||
12 | # module will attempt to locate and set the the proper link flags | ||
13 | # as part of the returned SDL2_LIBRARY variable. | ||
14 | # | ||
15 | # Don't forget to include SDL2main.h and SDL2main.m your project for the | ||
16 | # OS X framework based version. (Other versions link to -lSDL2main which | ||
17 | # this module will try to find on your behalf.) Also for OS X, this | ||
18 | # module will automatically add the -framework Cocoa on your behalf. | ||
19 | # | ||
20 | # | ||
21 | # Additional Note: If you see an empty SDL2_LIBRARY_TEMP in your configuration | ||
22 | # and no SDL2_LIBRARY, it means CMake did not find your SDL2 library | ||
23 | # (SDL2.dll, libsdl2.so, SDL2.framework, etc). | ||
24 | # Set SDL2_LIBRARY_TEMP to point to your SDL2 library, and configure again. | ||
25 | # Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this value | ||
26 | # as appropriate. These values are used to generate the final SDL2_LIBRARY | ||
27 | # variable, but when these values are unset, SDL2_LIBRARY does not get created. | ||
28 | # | ||
29 | # | ||
30 | # $SDL2 is an environment variable that would | ||
31 | # correspond to the ./configure --prefix=$SDL2 | ||
32 | # used in building SDL2. | ||
33 | # l.e.galup 9-20-02 | ||
34 | # | ||
35 | # Modified by Eric Wing. | ||
36 | # Added code to assist with automated building by using environmental variables | ||
37 | # and providing a more controlled/consistent search behavior. | ||
38 | # Added new modifications to recognize OS X frameworks and | ||
39 | # additional Unix paths (FreeBSD, etc). | ||
40 | # Also corrected the header search path to follow "proper" SDL2 guidelines. | ||
41 | # Added a search for SDL2main which is needed by some platforms. | ||
42 | # Added a search for threads which is needed by some platforms. | ||
43 | # Added needed compile switches for MinGW. | ||
44 | # | ||
45 | # On OSX, this will prefer the Framework version (if found) over others. | ||
46 | # People will have to manually change the cache values of | ||
47 | # SDL2_LIBRARY to override this selection or set the CMake environment | ||
48 | # CMAKE_INCLUDE_PATH to modify the search paths. | ||
49 | # | ||
50 | # Note that the header path has changed from SDL2/SDL.h to just SDL.h | ||
51 | # This needed to change because "proper" SDL2 convention | ||
52 | # is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability | ||
53 | # reasons because not all systems place things in SDL2/ (see FreeBSD). | ||
54 | # | ||
55 | # Ported by Johnny Patterson. This is a literal port for SDL2 of the FindSDL.cmake | ||
56 | # module with the minor edit of changing "SDL" to "SDL2" where necessary. This | ||
57 | # was not created for redistribution, and exists temporarily pending official | ||
58 | # SDL2 CMake modules. | ||
59 | # | ||
60 | # Note that on windows this will only search for the 32bit libraries, to search | ||
61 | # for 64bit change x86/i686-w64 to x64/x86_64-w64 | ||
62 | |||
63 | #============================================================================= | ||
64 | # Copyright 2003-2009 Kitware, Inc. | ||
65 | # | ||
66 | # CMake - Cross Platform Makefile Generator | ||
67 | # Copyright 2000-2014 Kitware, Inc. | ||
68 | # Copyright 2000-2011 Insight Software Consortium | ||
69 | # All rights reserved. | ||
70 | # | ||
71 | # Redistribution and use in source and binary forms, with or without | ||
72 | # modification, are permitted provided that the following conditions | ||
73 | # are met: | ||
74 | # | ||
75 | # * Redistributions of source code must retain the above copyright | ||
76 | # notice, this list of conditions and the following disclaimer. | ||
77 | # | ||
78 | # * Redistributions in binary form must reproduce the above copyright | ||
79 | # notice, this list of conditions and the following disclaimer in the | ||
80 | # documentation and/or other materials provided with the distribution. | ||
81 | # | ||
82 | # * Neither the names of Kitware, Inc., the Insight Software Consortium, | ||
83 | # nor the names of their contributors may be used to endorse or promote | ||
84 | # products derived from this software without specific prior written | ||
85 | # permission. | ||
86 | # | ||
87 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
88 | # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
89 | # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
90 | # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
91 | # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
92 | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
93 | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
94 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
95 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
96 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
97 | # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
98 | # | ||
99 | # This software is distributed WITHOUT ANY WARRANTY; without even the | ||
100 | # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
101 | # See the License for more information. | ||
102 | #============================================================================= | ||
103 | # (To distribute this file outside of CMake, substitute the full | ||
104 | # License text for the above reference.) | ||
105 | |||
106 | FIND_PATH(SDL2_INCLUDE_DIR SDL.h | ||
107 | HINTS | ||
108 | ${SDL2} | ||
109 | $ENV{SDL2} | ||
110 | PATH_SUFFIXES include/SDL2 include SDL2 | ||
111 | i686-w64-mingw32/include/SDL2 | ||
112 | x86_64-w64-mingw32/include/SDL2 | ||
113 | PATHS | ||
114 | ~/Library/Frameworks | ||
115 | /Library/Frameworks | ||
116 | /usr/local/include/SDL2 | ||
117 | /usr/include/SDL2 | ||
118 | /sw # Fink | ||
119 | /opt/local # DarwinPorts | ||
120 | /opt/csw # Blastwave | ||
121 | /opt | ||
122 | ) | ||
123 | |||
124 | # Lookup the 64 bit libs on x64 | ||
125 | IF(CMAKE_SIZEOF_VOID_P EQUAL 8) | ||
126 | FIND_LIBRARY(SDL2_LIBRARY_TEMP SDL2 | ||
127 | HINTS | ||
128 | ${SDL2} | ||
129 | $ENV{SDL2} | ||
130 | PATH_SUFFIXES lib64 lib | ||
131 | lib/x64 | ||
132 | x86_64-w64-mingw32/lib | ||
133 | PATHS | ||
134 | /sw | ||
135 | /opt/local | ||
136 | /opt/csw | ||
137 | /opt | ||
138 | ) | ||
139 | # On 32bit build find the 32bit libs | ||
140 | ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8) | ||
141 | FIND_LIBRARY(SDL2_LIBRARY_TEMP SDL2 | ||
142 | HINTS | ||
143 | ${SDL2} | ||
144 | $ENV{SDL2} | ||
145 | PATH_SUFFIXES lib | ||
146 | lib/x86 | ||
147 | i686-w64-mingw32/lib | ||
148 | PATHS | ||
149 | /sw | ||
150 | /opt/local | ||
151 | /opt/csw | ||
152 | /opt | ||
153 | ) | ||
154 | ENDIF(CMAKE_SIZEOF_VOID_P EQUAL 8) | ||
155 | |||
156 | IF(NOT SDL2_BUILDING_LIBRARY) | ||
157 | IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") | ||
158 | # Non-OS X framework versions expect you to also dynamically link to | ||
159 | # SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms | ||
160 | # seem to provide SDL2main for compatibility even though they don't | ||
161 | # necessarily need it. | ||
162 | # Lookup the 64 bit libs on x64 | ||
163 | IF(CMAKE_SIZEOF_VOID_P EQUAL 8) | ||
164 | FIND_LIBRARY(SDL2MAIN_LIBRARY | ||
165 | NAMES SDL2main | ||
166 | HINTS | ||
167 | ${SDL2} | ||
168 | $ENV{SDL2} | ||
169 | PATH_SUFFIXES lib64 lib | ||
170 | lib/x64 | ||
171 | x86_64-w64-mingw32/lib | ||
172 | PATHS | ||
173 | /sw | ||
174 | /opt/local | ||
175 | /opt/csw | ||
176 | /opt | ||
177 | ) | ||
178 | # On 32bit build find the 32bit libs | ||
179 | ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8) | ||
180 | FIND_LIBRARY(SDL2MAIN_LIBRARY | ||
181 | NAMES SDL2main | ||
182 | HINTS | ||
183 | ${SDL2} | ||
184 | $ENV{SDL2} | ||
185 | PATH_SUFFIXES lib | ||
186 | lib/x86 | ||
187 | i686-w64-mingw32/lib | ||
188 | PATHS | ||
189 | /sw | ||
190 | /opt/local | ||
191 | /opt/csw | ||
192 | /opt | ||
193 | ) | ||
194 | ENDIF(CMAKE_SIZEOF_VOID_P EQUAL 8) | ||
195 | ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") | ||
196 | ENDIF(NOT SDL2_BUILDING_LIBRARY) | ||
197 | |||
198 | # SDL2 may require threads on your system. | ||
199 | # The Apple build may not need an explicit flag because one of the | ||
200 | # frameworks may already provide it. | ||
201 | # But for non-OSX systems, I will use the CMake Threads package. | ||
202 | IF(NOT APPLE) | ||
203 | FIND_PACKAGE(Threads) | ||
204 | ENDIF(NOT APPLE) | ||
205 | |||
206 | # MinGW needs an additional library, mwindows | ||
207 | # It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows | ||
208 | # (Actually on second look, I think it only needs one of the m* libraries.) | ||
209 | IF(MINGW) | ||
210 | SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW") | ||
211 | ENDIF(MINGW) | ||
212 | |||
213 | SET(SDL2_FOUND "NO") | ||
214 | IF(SDL2_LIBRARY_TEMP) | ||
215 | # For SDL2main | ||
216 | IF(NOT SDL2_BUILDING_LIBRARY) | ||
217 | IF(SDL2MAIN_LIBRARY) | ||
218 | SET(SDL2_LIBRARY_TEMP ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY_TEMP}) | ||
219 | ENDIF(SDL2MAIN_LIBRARY) | ||
220 | ENDIF(NOT SDL2_BUILDING_LIBRARY) | ||
221 | |||
222 | # For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa. | ||
223 | # CMake doesn't display the -framework Cocoa string in the UI even | ||
224 | # though it actually is there if I modify a pre-used variable. | ||
225 | # I think it has something to do with the CACHE STRING. | ||
226 | # So I use a temporary variable until the end so I can set the | ||
227 | # "real" variable in one-shot. | ||
228 | IF(APPLE) | ||
229 | SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa") | ||
230 | ENDIF(APPLE) | ||
231 | |||
232 | # For threads, as mentioned Apple doesn't need this. | ||
233 | # In fact, there seems to be a problem if I used the Threads package | ||
234 | # and try using this line, so I'm just skipping it entirely for OS X. | ||
235 | IF(NOT APPLE) | ||
236 | SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT}) | ||
237 | ENDIF(NOT APPLE) | ||
238 | |||
239 | # For MinGW library | ||
240 | IF(MINGW) | ||
241 | SET(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP}) | ||
242 | ENDIF(MINGW) | ||
243 | |||
244 | # Set the final string here so the GUI reflects the final state. | ||
245 | SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found") | ||
246 | # Set the temp variable to INTERNAL so it is not seen in the CMake GUI | ||
247 | SET(SDL2_LIBRARY_TEMP "${SDL2_LIBRARY_TEMP}" CACHE INTERNAL "") | ||
248 | |||
249 | SET(SDL2_FOUND "YES") | ||
250 | ENDIF(SDL2_LIBRARY_TEMP) | ||
251 | |||
252 | INCLUDE(FindPackageHandleStandardArgs) | ||
253 | |||
254 | FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR) | ||