cmake/modules/FindBoostPython.cmake

   1 # - Try to find the a valid boost+python combination
   2 # Once done this will define
   3 #
   4 #  BOOST_PYTHON_FOUND - system has a valid boost+python combination
   5 #  BOOST_PYTHON_INCLUDES - the include directory for boost+python
   6 #  BOOST_PYTHON_LIBS - the needed libs for boost+python
   7
   8 # Copyright (c) 2006, Pino Toscano, <toscano.pino@tiscali.it>
   9 #
  10 # Redistribution and use is allowed according to the terms of the BSD license.
  11 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
  12
  13 if(BOOST_PYTHON_INCLUDES AND BOOST_PYTHON_LIBS)
  14     # Already in cache, be silent
  15         set(BOOST_PYTHON_FIND_QUIETLY TRUE)
  16 endif(BOOST_PYTHON_INCLUDES AND BOOST_PYTHON_LIBS)
  17
  18 # some needed includes
  19 include(CheckCXXSourceCompiles)
  20 include(CheckIncludeFileCXX)
  21 include(CheckLibraryExists)
  22
  23 # reset vars
  24 set(BOOST_PYTHON_INCLUDES)
  25 set(BOOST_PYTHON_LIBS)
  26
  27 # handy arrays
  28 set(PYTHON_VERSIONS "python;python2.5;python2.4;python2.3;python2.2")
  29 set(PYTHON_INCLUDE_DIRS "/usr/include/$pyver;/usr/local/include/$pyver;/usr/$pyver/include;/usr/local/$pyver/include;$prefix/include/$pyver;$prefix/$pyver/include")
  30 set(PYTHON_LIBRARY_DIRS "/usr/lib${LIB_SUFFIX};/usr/local/lib${LIB_SUFFIX};/usr/lib${LIB_SUFFIX}/$pyver/config")
  31 set(PYTHON_LIBS "boost_python-gcc-mt;boost_python-mt;boost_python-gcc-mt-1_33;boost_python-gcc-mt-1_33_1;boost_python;boost_python-gcc-mt-1_32;boost_python")
  32
  33 # 1st: check for boost/shared_ptr.hpp
  34 check_include_file_cxx(boost/shared_ptr.hpp HAVE_BOOST_SHARED_PTR_HPP)
  35
  36 if(HAVE_BOOST_SHARED_PTR_HPP)
  37
  38   set(_found FALSE)
  39
  40   # save the old flags and setting the new ones
  41   set(_save_CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
  42   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${KDE4_ENABLE_EXCEPTIONS}")
  43
  44   foreach(_pyver ${PYTHON_VERSIONS})
  45     if(NOT _found)
  46       foreach(_pydir ${PYTHON_INCLUDE_DIRS})
  47
  48         if(NOT _found)
  49           string(REPLACE "$pyver" "${_pyver}" _pydir ${_pydir})
  50           string(REPLACE "$prefix" "${CMAKE_INSTALL_PREFIX}" _pydir ${_pydir})
  51
  52           if(EXISTS ${_pydir})
  53           if(EXISTS ${_pydir}/Python.h)
  54
  55             foreach(_pylibdir ${PYTHON_LIBRARY_DIRS})
  56
  57               if(NOT _found)
  58                 string(REPLACE "$pyver" ${_pyver} _pylibdir ${_pylibdir})
  59
  60                 foreach(_pblib ${PYTHON_LIBS})
  61
  62                   if(NOT _found)
  63
  64                     set(CMAKE_REQUIRED_FLAGS "-L${_pylibdir}")
  65                     set(CMAKE_REQUIRED_INCLUDES ${_pydir})
  66                     set(CMAKE_REQUIRED_LIBRARIES ${_pblib} ${_pyver})
  67
  68                     check_cxx_source_compiles("
  69 #include <boost/python.hpp>
  70 const char* greet() { return \"Hello world!\"; }
  71 BOOST_PYTHON_MODULE(hello) { boost::python::def(\"greet\", greet); }
  72
  73 int main() { return 0; }
  74
  75 // some vars, in case of the compilation fail...
  76 // python include dir: ${_pydir}
  77 // python lib dir: ${_pylibdir}
  78 // boost python lib: ${_pblib}
  79
  80 " boost_python_${_pylibdir}_${_pydir}_${_pblib}_compile )
  81
  82                     set(CMAKE_REQUIRED_FLAGS)
  83                     set(CMAKE_REQUIRED_INCLUDES)
  84                     set(CMAKE_REQUIRED_LIBRARIES)
  85
  86                     if(boost_python_${_pylibdir}_${_pydir}_${_pblib}_compile)
  87
  88                         set(_found TRUE)
  89
  90                         set(BOOST_PYTHON_INCLUDES ${_pydir})
  91                         set(BOOST_PYTHON_LIBS "-l${_pyver} -L${_pylibdir} -l${_pblib}")
  92
  93                     endif(boost_python_${_pylibdir}_${_pydir}_${_pblib}_compile)
  94
  95                   endif(NOT _found)
  96
  97                 endforeach(_pblib ${PYTHON_LIBS})
  98
  99               endif(NOT _found)
 100
 101             endforeach(_pylibdir ${PYTHON_LIBRARY_DIRS})
 102
 103           endif(EXISTS ${_pydir}/Python.h)
 104           endif(EXISTS ${_pydir})
 105
 106         endif(NOT _found)
 107
 108       endforeach(_pydir ${PYTHON_INCLUDE_DIRS})
 109
 110     endif(NOT _found)
 111
 112   endforeach(_pyver ${PYTHON_VERSIONS})
 113
 114   set(CMAKE_CXX_FLAGS ${_save_CMAKE_CXX_FLAGS})
 115
 116 endif(HAVE_BOOST_SHARED_PTR_HPP)
 117
 118 if(BOOST_PYTHON_INCLUDES AND BOOST_PYTHON_LIBS)
 119   set(BOOST_PYTHON_FOUND TRUE)
 120 endif(BOOST_PYTHON_INCLUDES AND BOOST_PYTHON_LIBS)
 121
 122 if(BOOST_PYTHON_FOUND)
 123   if(NOT BoostPython_FIND_QUIETLY)
 124     message(STATUS "Found Boost+Python: ${BOOST_PYTHON_LIBS}")
 125   endif(NOT BoostPython_FIND_QUIETLY)
 126   set(KIG_ENABLE_PYTHON_SCRIPTING 1)
 127 else (BOOST_PYTHON_FOUND)
 128   if (BoostPython_FIND_REQUIRED)
 129     message(FATAL_ERROR "Could NOT find Boost+Python")
 130   endif(BoostPython_FIND_REQUIRED)
 131   set(KIG_ENABLE_PYTHON_SCRIPTING 0)
 132 endif(BOOST_PYTHON_FOUND)
 133
 134 mark_as_advanced(BOOST_PYTHON_INCLUDES BOOST_PYTHON_LIBS)