salome_adm/cmake_files/FindPYTHON.cmake

   1 #  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
   2 #
   3 #  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 #  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 #
   6 #  This library is free software; you can redistribute it and/or
   7 #  modify it under the terms of the GNU Lesser General Public
   8 #  License as published by the Free Software Foundation; either
   9 #  version 2.1 of the License.
  10 #
  11 #  This library is distributed in the hope that it will be useful,
  12 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 #  Lesser General Public License for more details.
  15 #
  16 #  You should have received a copy of the GNU Lesser General Public
  17 #  License along with this library; if not, write to the Free Software
  18 #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 #
  20 #  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 #
  22 # ------
  23
  24 MESSAGE(STATUS "Check for python ...")
  25
  26 # ------
  27
  28 IF(PYTHON_IS_MANDATORY STREQUAL 0)
  29   SET(PYTHON_IS_MANDATORY 0)
  30   SET(PYTHON_IS_OPTIONAL 1)
  31 ENDIF(PYTHON_IS_MANDATORY STREQUAL 0)
  32 IF(PYTHON_IS_OPTIONAL STREQUAL 0)
  33   SET(PYTHON_IS_MANDATORY 1)
  34   SET(PYTHON_IS_OPTIONAL 0)
  35 ENDIF(PYTHON_IS_OPTIONAL STREQUAL 0)
  36 IF(NOT PYTHON_IS_MANDATORY AND NOT PYTHON_IS_OPTIONAL)
  37   SET(PYTHON_IS_MANDATORY 1)
  38   SET(PYTHON_IS_OPTIONAL 0)
  39 ENDIF(NOT PYTHON_IS_MANDATORY AND NOT PYTHON_IS_OPTIONAL)
  40
  41 # ------
  42
  43 SET(PYTHON_STATUS 1)
  44 IF(WITHOUT_PYTHON OR WITH_PYTHON STREQUAL 0)
  45   SET(PYTHON_STATUS 0)
  46   MESSAGE(STATUS "python disabled from command line.")
  47 ENDIF(WITHOUT_PYTHON OR WITH_PYTHON STREQUAL 0)
  48
  49 # ------
  50
  51 IF(PYTHON_STATUS)
  52   IF(WITH_PYTHON)
  53     SET(PYTHON_ROOT_USER ${WITH_PYTHON})
  54   ENDIF(WITH_PYTHON)
  55   IF(NOT PYTHON_ROOT_USER)
  56     SET(PYTHON_ROOT_USER $ENV{PYTHON_ROOT})
  57   ENDIF(NOT PYTHON_ROOT_USER)
  58   IF(NOT PYTHON_ROOT_USER)
  59     SET(PYTHON_ROOT_USER $ENV{PYTHONHOME})
  60   ENDIF(NOT PYTHON_ROOT_USER)
  61 ENDIF(PYTHON_STATUS)
  62
  63 # ------
  64
  65 IF(PYTHON_STATUS)
  66   IF(NOT PYTHON_ROOT_USER)
  67     IF(WINDOWS)
  68       IF(CMAKE_BUILD_TYPE STREQUAL Release)
  69         FIND_PROGRAM(PYTHON_EXECUTABLE python)
  70       ELSE(CMAKE_BUILD_TYPE STREQUAL Release)
  71         FIND_PROGRAM(PYTHON_EXECUTABLE python_d)
  72       ENDIF(CMAKE_BUILD_TYPE STREQUAL Release)
  73     ELSE(WINDOWS)
  74       FIND_PROGRAM(PYTHON_EXECUTABLE python)
  75     ENDIF(WINDOWS)
  76     IF(PYTHON_EXECUTABLE)
  77       MESSAGE(STATUS "python found: ${PYTHON_EXECUTABLE}")
  78       IF(PYTHON_EXECUTABLE STREQUAL /usr/bin/python)
  79       ELSE(PYTHON_EXECUTABLE STREQUAL /usr/bin/python)
  80         SET(PYTHON_ROOT_USER ${PYTHON_EXECUTABLE})
  81         GET_FILENAME_COMPONENT(PYTHON_ROOT_USER ${PYTHON_ROOT_USER} PATH)
  82         GET_FILENAME_COMPONENT(PYTHON_ROOT_USER ${PYTHON_ROOT_USER} PATH)
  83       ENDIF(PYTHON_EXECUTABLE STREQUAL /usr/bin/python)
  84     ELSE(PYTHON_EXECUTABLE)
  85       MESSAGE(STATUS "python not found, try to use WITH_PYTHON option or PYTHONHOME environment variable")
  86       SET(PYTHON_STATUS 0)
  87     ENDIF(PYTHON_EXECUTABLE)
  88   ENDIF(NOT PYTHON_ROOT_USER)
  89 ENDIF(PYTHON_STATUS)
  90
  91 # ------
  92
  93 IF(PYTHON_STATUS)
  94   EXECUTE_PROCESS(
  95     COMMAND ${PYTHON_EXECUTABLE} -c "import sys; sys.stdout.write(sys.version[:3])"
  96     OUTPUT_VARIABLE PYTHON_VERSION
  97     )
  98 ENDIF(PYTHON_STATUS)
  99
 100 # ------
 101
 102 IF(PYTHON_STATUS)
 103   IF(PYTHON_ROOT_USER)
 104     SET(PYTHON_FIND_PATHS_OPTION NO_DEFAULT_PATH)
 105   ELSE(PYTHON_ROOT_USER)
 106     SET(PYTHON_FIND_PATHS_OPTION)
 107   ENDIF(PYTHON_ROOT_USER)
 108 ENDIF(PYTHON_STATUS)
 109
 110 # ------
 111
 112 IF(PYTHON_STATUS)
 113   IF(PYTHON_ROOT_USER)
 114     SET(PYTHON_INCLUDE_PATHS ${PYTHON_ROOT_USER}/include ${PYTHON_ROOT_USER}/include/python${PYTHON_VERSION})
 115   ELSE(PYTHON_ROOT_USER)
 116     SET(PYTHON_INCLUDE_PATHS /usr/include/python${PYTHON_VERSION})
 117   ENDIF(PYTHON_ROOT_USER)
 118   SET(PYTHON_INCLUDE_TO_FIND Python.h)
 119   FIND_PATH(PYTHON_INCLUDE_DIR ${PYTHON_INCLUDE_TO_FIND} PATHS ${PYTHON_INCLUDE_PATHS} ${PYTHON_FIND_PATHS_OPTION})
 120   IF(PYTHON_INCLUDE_DIR)
 121     SET(PYTHON_INCLUDES -I${PYTHON_INCLUDE_DIR})
 122     IF(WINDOWS)
 123       IF(CMAKE_BUILD_TYPE STREQUAL Release)
 124       ELSE(CMAKE_BUILD_TYPE STREQUAL Release)
 125         SET(PYTHON_INCLUDES ${PYTHON_INCLUDES} -DHAVE_DEBUG_PYTHON)
 126       ENDIF(CMAKE_BUILD_TYPE STREQUAL Release)
 127     ENDIF(WINDOWS)
 128     MESSAGE(STATUS "${PYTHON_INCLUDE_TO_FIND} found in ${PYTHON_INCLUDE_DIR}")
 129   ELSE(PYTHON_INCLUDE_DIR)
 130     SET(PYTHON_STATUS 0)
 131     IF(PYTHON_ROOT_USER)
 132       MESSAGE(STATUS "${PYTHON_INCLUDE_TO_FIND} not found in ${PYTHON_INCLUDE_PATHS}, check your PYTHON installation.")
 133     ELSE(PYTHON_ROOT_USER)
 134       MESSAGE(STATUS "${PYTHON_INCLUDE_TO_FIND} not found on system, try to use WITH_PYTHON option or PYTHON_ROOT environment variable.")
 135     ENDIF(PYTHON_ROOT_USER)
 136   ENDIF(PYTHON_INCLUDE_DIR)
 137 ENDIF(PYTHON_STATUS)
 138
 139 # ----
 140
 141 IF(PYTHON_STATUS)
 142   IF(PYTHON_ROOT_USER)
 143     IF(WINDOWS)
 144       SET(PYTHON_LIB_PATHS ${PYTHON_ROOT_USER}/libs)
 145     ELSE(WINDOWS)
 146       SET(PYTHON_LIB_PATHS ${PYTHON_ROOT_USER}/lib)
 147     ENDIF(WINDOWS)
 148   ELSE(PYTHON_ROOT_USER)
 149     SET(PYTHON_LIB_PATHS)
 150   ENDIF(PYTHON_ROOT_USER)
 151   IF(WINDOWS)
 152     STRING(REPLACE "." "" PYTHON_VERSION_WITHOUT_DOT ${PYTHON_VERSION})
 153     IF(CMAKE_BUILD_TYPE STREQUAL Release)
 154       FIND_LIBRARY(PYTHON_LIB python${PYTHON_VERSION_WITHOUT_DOT} PATHS ${PYTHON_LIB_PATHS} ${PYTHON_FIND_PATHS_OPTION})
 155     ELSE(CMAKE_BUILD_TYPE STREQUAL Release)
 156       FIND_LIBRARY(PYTHON_LIB python${PYTHON_VERSION_WITHOUT_DOT}_d PATHS ${PYTHON_LIB_PATHS} ${PYTHON_FIND_PATHS_OPTION})
 157     ENDIF(CMAKE_BUILD_TYPE STREQUAL Release)
 158   ELSE(WINDOWS)
 159     FIND_LIBRARY(PYTHON_LIB python${PYTHON_VERSION} PATHS ${PYTHON_LIB_PATHS} ${PYTHON_FIND_PATHS_OPTION})
 160   ENDIF(WINDOWS)
 161   SET(PYTHON_LIBS)
 162   IF(PYTHON_LIB)
 163     SET(PYTHON_LIBS ${PYTHON_LIBS} ${PYTHON_LIB})
 164     MESSAGE(STATUS "python lib found: ${PYTHON_LIB}")
 165   ELSE(PYTHON_LIB)
 166     SET(PYTHON_STATUS 0)
 167     IF(PYTHON_ROOT_USER)
 168       MESSAGE(STATUS "python lib not found in ${PYTHON_LIB_PATHS}, check your PYTHON installation.")
 169     ELSE(PYTHON_ROOT_USER)
 170       MESSAGE(STATUS "python lib not found on system, try to use WITH_PYTHON option or PYTHON_ROOT environment variable.")
 171     ENDIF(PYTHON_ROOT_USER)
 172   ENDIF(PYTHON_LIB)
 173 ENDIF(PYTHON_STATUS)
 174
 175 # ----
 176
 177 IF(PYTHON_STATUS)
 178 ELSE(PYTHON_STATUS)
 179   IF(PYTHON_IS_MANDATORY)
 180     MESSAGE(FATAL_ERROR "python not found ... mandatory ... abort")
 181   ELSE(PYTHON_IS_MANDATORY)
 182     MESSAGE(STATUS "python not found ... optional ... disabled")
 183   ENDIF(PYTHON_IS_MANDATORY)
 184 ENDIF(PYTHON_STATUS)