1AC_DEFUN([AC_PYTHON_DEVEL],[ 2 # 3 # Allow the use of a (user set) custom python version 4 # 5 AC_ARG_VAR([PYTHON_VERSION],[The installed Python 6 version to use, for example '2.3'. This string 7 will be appended to the Python interpreter 8 canonical name.]) 9 10 AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]]) 11 if test -z "$PYTHON"; then 12 AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path]) 13 PYTHON_VERSION="" 14 fi 15 16 if test -z "$PYTHON_VERSION"; then 17 PYTHON_VERSION=`$PYTHON -c "import sys; \ 18 print(sys.version.split()[[0]])"` 19 fi 20 21 # 22 # Check if you have distutils, else fail 23 # 24 AC_MSG_CHECKING([for the distutils Python package]) 25 if ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`; then 26 AC_MSG_RESULT([yes]) 27 else 28 AC_MSG_RESULT([no]) 29 AC_MSG_ERROR([cannot import Python module "distutils". 30Please check your Python installation. The error was: 31$ac_distutils_result]) 32 PYTHON_VERSION="" 33 fi 34 35 # 36 # Check for Python include path 37 # 38 AC_MSG_CHECKING([for Python include path]) 39 if test -z "$PYTHON_CPPFLAGS"; then 40 python_path=`$PYTHON -c "import distutils.sysconfig; \ 41 print(distutils.sysconfig.get_python_inc());"` 42 if test -n "${python_path}"; then 43 python_path="-I$python_path" 44 fi 45 PYTHON_CPPFLAGS=$python_path 46 fi 47 AC_MSG_RESULT([$PYTHON_CPPFLAGS]) 48 AC_SUBST([PYTHON_CPPFLAGS]) 49 50 # 51 # Check for Python library path 52 # 53 AC_MSG_CHECKING([for Python library path]) 54 if test -z "$PYTHON_LDFLAGS"; then 55 PYTHON_LDFLAGS=`$PYTHON -c "from distutils.sysconfig import *; \ 56 print('-L'+get_config_var('LIBDIR')+' -L'+get_config_var('LIBDEST')+' '+get_config_var('BLDLIBRARY'));"` 57 fi 58 AC_MSG_RESULT([$PYTHON_LDFLAGS]) 59 AC_SUBST([PYTHON_LDFLAGS]) 60 61 # 62 # Check for site packages 63 # 64 AC_MSG_CHECKING([for Python site-packages path]) 65 if test -z "$PYTHON_SITE_PKG"; then 66 PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \ 67 print(distutils.sysconfig.get_python_lib(1,0));"` 68 fi 69 AC_MSG_RESULT([$PYTHON_SITE_PKG]) 70 AC_SUBST([PYTHON_SITE_PKG]) 71 72 # 73 # final check to see if everything compiles alright 74 # 75 AC_MSG_CHECKING([consistency of all components of python development environment]) 76 AC_LANG_PUSH([C]) 77 # save current global flags 78 ac_save_LIBS="$LIBS" 79 ac_save_CPPFLAGS="$CPPFLAGS" 80 81 LIBS="$LIBS $PYTHON_LDFLAGS" 82 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS" 83 AC_TRY_LINK([ 84 #include <Python.h> 85 ],[ 86 Py_Initialize(); 87 ],[pythonexists=yes],[pythonexists=no]) 88 89 AC_MSG_RESULT([$pythonexists]) 90 91 if test ! "$pythonexists" = "yes"; then 92 AC_MSG_ERROR([ 93 Could not link test program to Python. Maybe the main Python library has been 94 installed in some non-standard library path. If so, pass it to configure, 95 via the LDFLAGS environment variable. 96 Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" 97 ============================================================================ 98 ERROR! 99 You probably have to install the development version of the Python package 100 for your distribution. The exact name of this package varies among them. 101 ============================================================================ 102 ]) 103 PYTHON_VERSION="" 104 fi 105 AC_LANG_POP 106 # turn back to default flags 107 CPPFLAGS="$ac_save_CPPFLAGS" 108 LIBS="$ac_save_LIBS" 109 110 # 111 # all done! 112 # 113]) 114 115