summaryrefslogtreecommitdiff
path: root/Modules/FindPythonLibs.cmake
blob: a9cf89ed7cfd1e61ff1ece686c340735c635a6b7 (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
# - Find python libraries
# This module finds if Python is installed and determines where the
# include files and libraries are. It also determines what the name of
# the library is. This code sets the following variables:
#
#  PYTHONLIBS_FOUND     = have the Python libs been found
#  PYTHON_LIBRARIES     = path to the python library
#  PYTHON_INCLUDE_PATH  = path to where Python.h is found
#  PYTHON_DEBUG_LIBRARIES = path to the debug library
#

INCLUDE(CMakeFindFrameworks)
# Search for the python framework on Apple.
CMAKE_FIND_FRAMEWORKS(Python)

FOREACH(_CURRENT_VERSION 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.6 1.5)
  STRING(REPLACE "." "" _CURRENT_VERSION_NO_DOTS ${_CURRENT_VERSION})
  IF(WIN32)
    FIND_LIBRARY(PYTHON_DEBUG_LIBRARY
      NAMES python${_CURRENT_VERSION_NO_DOTS}_d python
      PATHS
      [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
      [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs )
  ENDIF(WIN32)

  FIND_LIBRARY(PYTHON_LIBRARY
    NAMES python${_CURRENT_VERSION_NO_DOTS} python${_CURRENT_VERSION}
    PATHS
      [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs
    PATH_SUFFIXES
      python${_CURRENT_VERSION}/config
    # Avoid finding the .dll in the PATH.  We want the .lib.
    NO_SYSTEM_ENVIRONMENT_PATH
  )

  SET(PYTHON_FRAMEWORK_INCLUDES)
  IF(Python_FRAMEWORKS AND NOT PYTHON_INCLUDE_PATH)
    FOREACH(dir ${Python_FRAMEWORKS})
      SET(PYTHON_FRAMEWORK_INCLUDES ${PYTHON_FRAMEWORK_INCLUDES}
        ${dir}/Versions/${_CURRENT_VERSION}/include/python${_CURRENT_VERSION})
    ENDFOREACH(dir)
  ENDIF(Python_FRAMEWORKS AND NOT PYTHON_INCLUDE_PATH)

  FIND_PATH(PYTHON_INCLUDE_PATH
    NAMES Python.h
    PATHS
      ${PYTHON_FRAMEWORK_INCLUDES}
      [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/include
    PATH_SUFFIXES
      python${_CURRENT_VERSION}
  )
  
ENDFOREACH(_CURRENT_VERSION)

MARK_AS_ADVANCED(
  PYTHON_DEBUG_LIBRARY
  PYTHON_LIBRARY
  PYTHON_INCLUDE_PATH
)

# Python Should be built and installed as a Framework on OSX
IF(Python_FRAMEWORKS)
  # If a framework has been selected for the include path,
  # make sure "-framework" is used to link it.
  IF("${PYTHON_INCLUDE_PATH}" MATCHES "Python\\.framework")
    SET(PYTHON_LIBRARY "")
    SET(PYTHON_DEBUG_LIBRARY "")
  ENDIF("${PYTHON_INCLUDE_PATH}" MATCHES "Python\\.framework")
  IF(NOT PYTHON_LIBRARY)
    SET (PYTHON_LIBRARY "-framework Python" CACHE FILEPATH "Python Framework" FORCE)
  ENDIF(NOT PYTHON_LIBRARY)
  IF(NOT PYTHON_DEBUG_LIBRARY)
    SET (PYTHON_DEBUG_LIBRARY "-framework Python" CACHE FILEPATH "Python Framework" FORCE)
  ENDIF(NOT PYTHON_DEBUG_LIBRARY)
ENDIF(Python_FRAMEWORKS)

# We use PYTHON_LIBRARY and PYTHON_DEBUG_LIBRARY for the cache entries
# because they are meant to specify the location of a single library.
# We now set the variables listed by the documentation for this
# module.
SET(PYTHON_LIBRARIES "${PYTHON_LIBRARY}")
SET(PYTHON_DEBUG_LIBRARIES "${PYTHON_DEBUG_LIBRARY}")


INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonLibs DEFAULT_MSG PYTHON_LIBRARIES PYTHON_INCLUDE_PATH)


GET_TARGET_PROPERTY(_FIND_PYTHONLIBS_ALREADY_INCLUDED __FindPythonLibsHelper TYPE)
IF(NOT _FIND_PYTHONLIBS_ALREADY_INCLUDED)
  ADD_CUSTOM_TARGET(__FindPythonLibsHelper)  # so if this file is included several times the next time GET_TARGET_PROPERTIES() will work
  SET(PY_STATIC_MODULES_LIST "" CACHE STRING "Collect a list of all added static python modules" FORCE)
  SET(PY_MODULES_LIST        "" CACHE STRING "Collect a list of all added python modules" FORCE)
ENDIF(NOT _FIND_PYTHONLIBS_ALREADY_INCLUDED)

GET_PROPERTY(_TARGET_SUPPORTS_SHARED_LIBS GLOBAL TARGET_SUPPORTS_SHARED_LIBS)

MACRO(PYTHON_ADD_MODULE _NAME )
  OPTION(PYTHON_ENABLE_MODULE_${_NAME} "Add module ${_NAME}" TRUE)
  OPTION(PYTHON_MODULE_${_NAME}_BUILD_SHARED "Add module ${_NAME} shared" ${_TARGET_SUPPORTS_SHARED_LIBS})

  IF(PYTHON_ENABLE_MODULE_${_NAME})
    IF(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
      SET(PY_MODULE_TYPE MODULE)
    ELSE(PYTHON_MODULE_${_NAME}_BUILD_SHARED)
      SET(PY_MODULE_TYPE STATIC)
      SET(PY_STATIC_MODULES_LIST  ${PY_STATIC_MODULES_LIST} ${_NAME} CACHE STRING "Collect a list of all added static python modules" FORCE)
    ENDIF(PYTHON_MODULE_${_NAME}_BUILD_SHARED)

    SET(PY_MODULES_LIST  ${PY_MODULES_LIST} ${_NAME} CACHE STRING "Collect a list of all added python modules" FORCE)
    ADD_LIBRARY(${_NAME} ${PY_MODULE_TYPE} ${ARGN})
#    TARGET_LINK_LIBRARIES(${_NAME} ${PYTHON_LIBRARIES})
  ENDIF(PYTHON_ENABLE_MODULE_${_NAME})
ENDMACRO(PYTHON_ADD_MODULE)

MACRO(PYTHON_WRITE_MODULES_HEADER _filename)
  GET_FILENAME_COMPONENT(_name "${_filename}" NAME)
  STRING(REPLACE "." "_" _name "${_name}")
  STRING(TOUPPER ${_name} _name)

  SET(_filenameTmp "${_filename}.in")
  FILE(WRITE ${_filenameTmp} "/*Created by cmake, do not edit, changes will be lost*/\n")
  FILE(APPEND ${_filenameTmp} 
"#ifndef ${_name}
#define ${_name}

#include <Python.h>

#ifdef __cplusplus
extern \"C\" {
#endif /* __cplusplus */

")

  FOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
    FILE(APPEND ${_filenameTmp} "extern void init${PYTHON_MODULE_PREFIX}${_currentModule}(void);\n\n")
  ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})

  FILE(APPEND ${_filenameTmp} 
"#ifdef __cplusplus
}
#endif /* __cplusplus */

")


  FOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
    FILE(APPEND ${_filenameTmp} "int CMakeLoadPythonModule_${_currentModule}(void) \n{\n  char name[]=\"${PYTHON_MODULE_PREFIX}${_currentModule}\"; return PyImport_AppendInittab(name, init${PYTHON_MODULE_PREFIX}${_currentModule});\n}\n\n")
  ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})

  FILE(APPEND ${_filenameTmp} "#ifndef EXCLUDE_LOAD_ALL_FUNCTION\nvoid CMakeLoadAllPythonModules(void)\n{\n")
  FOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
    FILE(APPEND ${_filenameTmp} "  CMakeLoadPythonModule_${_currentModule}();\n")
  ENDFOREACH(_currentModule ${PY_STATIC_MODULES_LIST})
  FILE(APPEND ${_filenameTmp} "}\n#endif\n\n#endif\n")
  
# with CONFIGURE_FILE() cmake complains that you may not use a file created using FILE(WRITE) as input file for CONFIGURE_FILE()
  EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND} -E copy_if_different "${_filenameTmp}" "${_filename}" OUTPUT_QUIET ERROR_QUIET)

ENDMACRO(PYTHON_WRITE_MODULES_HEADER)