summaryrefslogtreecommitdiff
path: root/Modules/Platform/Darwin.cmake
blob: eff07b2958714f62f6b20a67587d719729c705a2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
SET(APPLE 1)

# Darwin versions:
#   6.x == Mac OSX 10.2 (Jaguar)
#   7.x == Mac OSX 10.3 (Panther)
#   8.x == Mac OSX 10.4 (Tiger)
#   9.x == Mac OSX 10.5 (Leopard)
#  10.x == Mac OSX 10.6 (Snow Leopard)
#  11.x == Mac OSX 10.7 (Lion)
#  12.x == Mac OSX 10.8 (Mountain Lion)
STRING(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_SYSTEM_VERSION}")
STRING(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\2" DARWIN_MINOR_VERSION "${CMAKE_SYSTEM_VERSION}")

# Do not use the "-Wl,-search_paths_first" flag with the OSX 10.2 compiler.
# Done this way because it is too early to do a TRY_COMPILE.
IF(NOT DEFINED HAVE_FLAG_SEARCH_PATHS_FIRST)
  SET(HAVE_FLAG_SEARCH_PATHS_FIRST 0)
  IF("${DARWIN_MAJOR_VERSION}" GREATER 6)
    SET(HAVE_FLAG_SEARCH_PATHS_FIRST 1)
  ENDIF("${DARWIN_MAJOR_VERSION}" GREATER 6)
ENDIF(NOT DEFINED HAVE_FLAG_SEARCH_PATHS_FIRST)
# More desirable, but does not work:
  #INCLUDE(CheckCXXCompilerFlag)
  #CHECK_CXX_COMPILER_FLAG("-Wl,-search_paths_first" HAVE_FLAG_SEARCH_PATHS_FIRST)

SET(CMAKE_SHARED_LIBRARY_PREFIX "lib")
SET(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
SET(CMAKE_SHARED_MODULE_PREFIX "lib")
SET(CMAKE_SHARED_MODULE_SUFFIX ".so")
SET(CMAKE_MODULE_EXISTS 1)
SET(CMAKE_DL_LIBS "")

SET(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
SET(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
SET(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
SET(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")

SET(CMAKE_C_LINK_FLAGS "-Wl,-headerpad_max_install_names")
SET(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names")

IF(HAVE_FLAG_SEARCH_PATHS_FIRST)
  SET(CMAKE_C_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
  SET(CMAKE_CXX_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")
ENDIF(HAVE_FLAG_SEARCH_PATHS_FIRST)

SET(CMAKE_PLATFORM_HAS_INSTALLNAME 1)
SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -Wl,-headerpad_max_install_names")
SET(CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
SET(CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
SET(CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a")

# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache
# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex
IF(NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
  FIND_PROGRAM(CMAKE_INSTALL_NAME_TOOL install_name_tool)
  MARK_AS_ADVANCED(CMAKE_INSTALL_NAME_TOOL)
ENDIF(NOT DEFINED CMAKE_INSTALL_NAME_TOOL)

# Set the assumed (Pre 10.5 or Default) location of the developer tools
SET(OSX_DEVELOPER_ROOT "/Developer")

# Use the xcode-select tool if it's available (Xcode >= 3.0 installations)
FIND_PROGRAM(CMAKE_XCODE_SELECT xcode-select)
MARK_AS_ADVANCED(CMAKE_XCODE_SELECT)
IF(CMAKE_XCODE_SELECT)
  EXECUTE_PROCESS(COMMAND ${CMAKE_XCODE_SELECT} "-print-path"
    OUTPUT_VARIABLE OSX_DEVELOPER_ROOT
    OUTPUT_STRIP_TRAILING_WHITESPACE)
ENDIF(CMAKE_XCODE_SELECT)

# Find installed SDKs
# Start with Xcode-4.3+ default SDKs directory
SET(_CMAKE_OSX_SDKS_DIR
  "${OSX_DEVELOPER_ROOT}/Platforms/MacOSX.platform/Developer/SDKs")
FILE(GLOB _CMAKE_OSX_SDKS "${_CMAKE_OSX_SDKS_DIR}/*")

# If not present, try pre-4.3 SDKs directory
IF(NOT _CMAKE_OSX_SDKS)
SET(_CMAKE_OSX_SDKS_DIR "${OSX_DEVELOPER_ROOT}/SDKs")
  FILE(GLOB _CMAKE_OSX_SDKS "${_CMAKE_OSX_SDKS_DIR}/*")
ENDIF(NOT _CMAKE_OSX_SDKS)

EXECUTE_PROCESS(COMMAND sw_vers -productVersion
  OUTPUT_VARIABLE CURRENT_OSX_VERSION
  OUTPUT_STRIP_TRAILING_WHITESPACE)

#----------------------------------------------------------------------------
# _CURRENT_OSX_VERSION - as a two-component string: 10.5, 10.6, ...
#
STRING(REGEX REPLACE "^([0-9]+\\.[0-9]+).*$" "\\1"
  _CURRENT_OSX_VERSION "${CURRENT_OSX_VERSION}")

#----------------------------------------------------------------------------
# CMAKE_OSX_DEPLOYMENT_TARGET

# Set cache variable - end user may change this during ccmake or cmake-gui configure.
IF(_CURRENT_OSX_VERSION VERSION_GREATER 10.3)
  SET(CMAKE_OSX_DEPLOYMENT_TARGET "$ENV{MACOSX_DEPLOYMENT_TARGET}" CACHE STRING
    "Minimum OS X version to target for deployment (at runtime); newer APIs weak linked. Set to empty string for default value.")
ENDIF(_CURRENT_OSX_VERSION VERSION_GREATER 10.3)

#----------------------------------------------------------------------------
# CMAKE_OSX_SYSROOT

# Environment variable set by the user overrides our default.
# Use the same environment variable that Xcode uses.
SET(ENV_SDKROOT "$ENV{SDKROOT}")

# Set CMAKE_OSX_SYSROOT_DEFAULT based on _CURRENT_OSX_VERSION,
# accounting for the known specially named SDKs.
SET(CMAKE_OSX_SYSROOT_DEFAULT
  "${_CMAKE_OSX_SDKS_DIR}/MacOSX${_CURRENT_OSX_VERSION}.sdk")

IF(_CURRENT_OSX_VERSION STREQUAL "10.4")
  SET(CMAKE_OSX_SYSROOT_DEFAULT
    "${_CMAKE_OSX_SDKS_DIR}/MacOSX10.4u.sdk")
ENDIF(_CURRENT_OSX_VERSION STREQUAL "10.4")

IF(_CURRENT_OSX_VERSION STREQUAL "10.3")
  SET(CMAKE_OSX_SYSROOT_DEFAULT
    "${_CMAKE_OSX_SDKS_DIR}/MacOSX10.3.9.sdk")
ENDIF(_CURRENT_OSX_VERSION STREQUAL "10.3")

# Use environment or default as initial cache value:
IF(NOT ENV_SDKROOT STREQUAL "")
  SET(CMAKE_OSX_SYSROOT_VALUE ${ENV_SDKROOT})
ELSE(NOT ENV_SDKROOT STREQUAL "")
  SET(CMAKE_OSX_SYSROOT_VALUE ${CMAKE_OSX_SYSROOT_DEFAULT})
ENDIF(NOT ENV_SDKROOT STREQUAL "")

# Set cache variable - end user may change this during ccmake or cmake-gui configure.
SET(CMAKE_OSX_SYSROOT ${CMAKE_OSX_SYSROOT_VALUE} CACHE PATH
  "The product will be built against the headers and libraries located inside the indicated SDK.")

#----------------------------------------------------------------------------
function(SanityCheckSDKAndDeployTarget _sdk_path _deploy)
  if(_deploy STREQUAL "")
    return()
  endif()

  if(_sdk_path STREQUAL "")
    message(FATAL_ERROR "CMAKE_OSX_DEPLOYMENT_TARGET='${_deploy}' but CMAKE_OSX_SYSROOT is empty... - either set CMAKE_OSX_SYSROOT to a valid SDK or set CMAKE_OSX_DEPLOYMENT_TARGET to empty")
  endif()

  string(REGEX REPLACE "(.*MacOSX*)(....)(.*\\.sdk)" "\\2" SDK "${_sdk_path}")
  if(_deploy GREATER "${SDK}")
    message(FATAL_ERROR "CMAKE_OSX_DEPLOYMENT_TARGET (${_deploy}) is greater than CMAKE_OSX_SYSROOT SDK (${_sdk_path}). Please set CMAKE_OSX_DEPLOYMENT_TARGET to ${SDK} or lower")
  endif()
endfunction(SanityCheckSDKAndDeployTarget)
#----------------------------------------------------------------------------

# Make sure the combination of SDK and Deployment Target are allowed
SanityCheckSDKAndDeployTarget("${CMAKE_OSX_SYSROOT}" "${CMAKE_OSX_DEPLOYMENT_TARGET}")

# set _CMAKE_OSX_MACHINE to uname -m
EXECUTE_PROCESS(COMMAND uname -m
  OUTPUT_STRIP_TRAILING_WHITESPACE
  OUTPUT_VARIABLE _CMAKE_OSX_MACHINE)

# check for Power PC and change to ppc
IF(_CMAKE_OSX_MACHINE MATCHES "Power")
  SET(_CMAKE_OSX_MACHINE ppc)
ENDIF(_CMAKE_OSX_MACHINE MATCHES "Power")

# check for environment variable CMAKE_OSX_ARCHITECTURES
# if it is set.
IF(NOT "$ENV{CMAKE_OSX_ARCHITECTURES}" STREQUAL "")
  SET(CMAKE_OSX_ARCHITECTURES_VALUE "$ENV{CMAKE_OSX_ARCHITECTURES}")
ELSE(NOT "$ENV{CMAKE_OSX_ARCHITECTURES}" STREQUAL "")
  SET(CMAKE_OSX_ARCHITECTURES_VALUE "")
ENDIF(NOT "$ENV{CMAKE_OSX_ARCHITECTURES}" STREQUAL "")

# now put _CMAKE_OSX_MACHINE into the cache
SET(CMAKE_OSX_ARCHITECTURES ${CMAKE_OSX_ARCHITECTURES_VALUE} CACHE STRING
  "Build architectures for OSX")


IF("${CMAKE_BACKWARDS_COMPATIBILITY}" MATCHES "^1\\.[0-6]$")
  SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS
    "${CMAKE_SHARED_MODULE_CREATE_C_FLAGS} -flat_namespace -undefined suppress")
ENDIF("${CMAKE_BACKWARDS_COMPATIBILITY}" MATCHES "^1\\.[0-6]$")

IF(NOT XCODE)
  # Enable shared library versioning.  This flag is not actually referenced
  # but the fact that the setting exists will cause the generators to support
  # soname computation.
  SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-install_name")
ENDIF(NOT XCODE)

# Xcode does not support -isystem yet.
IF(XCODE)
  SET(CMAKE_INCLUDE_SYSTEM_FLAG_C)
  SET(CMAKE_INCLUDE_SYSTEM_FLAG_CXX)
ENDIF(XCODE)

IF("${_CURRENT_OSX_VERSION}" VERSION_LESS "10.5")
  # Need to list dependent shared libraries on link line.  When building
  # with -isysroot (for universal binaries), the linker always looks for
  # dependent libraries under the sysroot.  Listing them on the link
  # line works around the problem.
  SET(CMAKE_LINK_DEPENDENT_LIBRARY_FILES 1)
ENDIF()

SET(CMAKE_C_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS -w)
SET(CMAKE_CXX_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS -w)
SET(CMAKE_C_CREATE_SHARED_LIBRARY
  "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
SET(CMAKE_CXX_CREATE_SHARED_LIBRARY
  "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
SET(CMAKE_Fortran_CREATE_SHARED_LIBRARY
  "<CMAKE_Fortran_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")

SET(CMAKE_CXX_CREATE_SHARED_MODULE
      "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")

SET(CMAKE_C_CREATE_SHARED_MODULE
      "<CMAKE_C_COMPILER>  <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")

SET(CMAKE_Fortran_CREATE_SHARED_MODULE
      "<CMAKE_Fortran_COMPILER>  <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")

SET(CMAKE_C_CREATE_MACOSX_FRAMEWORK
      "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
SET(CMAKE_CXX_CREATE_MACOSX_FRAMEWORK
      "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")


# default to searching for frameworks first
IF(NOT DEFINED CMAKE_FIND_FRAMEWORK)
  SET(CMAKE_FIND_FRAMEWORK FIRST)
ENDIF()
# set up the default search directories for frameworks
SET(CMAKE_SYSTEM_FRAMEWORK_PATH
  ~/Library/Frameworks
  /Library/Frameworks
  /Network/Library/Frameworks
  /System/Library/Frameworks)

# default to searching for application bundles first
IF(NOT DEFINED CMAKE_FIND_APPBUNDLE)
  SET(CMAKE_FIND_APPBUNDLE FIRST)
ENDIF()
# set up the default search directories for application bundles
SET(_apps_paths)
FOREACH(_path
  "~/Applications"
  "/Applications"
  "${OSX_DEVELOPER_ROOT}/../Applications" # Xcode 4.3+
  "${OSX_DEVELOPER_ROOT}/Applications"    # pre-4.3
  )
  GET_FILENAME_COMPONENT(_apps "${_path}" ABSOLUTE)
  IF(EXISTS "${_apps}")
    LIST(APPEND _apps_paths "${_apps}")
  ENDIF()
ENDFOREACH()
LIST(REMOVE_DUPLICATES _apps_paths)
SET(CMAKE_SYSTEM_APPBUNDLE_PATH
  ${_apps_paths})
UNSET(_apps_paths)

INCLUDE(Platform/UnixPaths)
LIST(APPEND CMAKE_SYSTEM_PREFIX_PATH
  /sw        # Fink
  /opt/local # MacPorts
  )