m4/python.m4

   1 AC_DEFUN([RFX_CHECK_PYTHON],
   2 [
   3 AC_MSG_CHECKING([for Python version])
   4
   5 if test "x$PYTHON_LIB" '!=' "x" -a "x$PYTHON_INCLUDES" '!=' "x";then
   6     # you can override the python detection by putting PYTHON_LIB
   7     # and PYTHON_INCLUDES into the environment
   8     case "$PYTHON_INCLUDES" in
   9         *python2.4*) PY_VERSION=2.4
  10                      ;;
  11         *python2.5*) PY_VERSION=2.5
  12                      ;;
  13         *python2.6*) PY_VERSION=2.6
  14                      ;;
  15         *python2.7*) PY_VERSION=2.7
  16                      ;;
  17         *python3.0*) PY_VERSION=3.0
  18                      ;;
  19         *python3.1*) PY_VERSION=3.1
  20                      ;;
  21         *python3.2*) PY_VERSION=3.2
  22                      ;;
  23         *python3.3*) PY_VERSION=3.3
  24                      ;;
  25         *)           PY_VERSION=unknown
  26                      ;;
  27     esac
  28 else
  29     if test "x$PYTHON_LIB" '!=' "x" -o "x$PYTHON_INCLUDES" '!=' "x";then
  30         echo "Set both PYTHON_LIB and PYTHON_INCLUDES, or none at all"
  31     fi
  32     # iterate through version 2.4 to 3.3
  33     VERSIONS="2.4 2.5 2.6 2.7 3.0 3.1 3.2 3.3"
  34     case "$PYTHON" in
  35         2*) VERSIONS="2.4 2.5 2.6 2.7 $PYTHON"
  36             ;;
  37         3*) VERSIONS="3.0 3.1 3.2 3.3 $PYTHON"
  38             ;;
  39     esac
  40     for v in $VERSIONS; do
  41         # Linux
  42         if test -f "/usr/include/python$v/Python.h";then
  43             PY_VERSION=$v
  44             PYTHON_LIB="-lpython$PY_VERSION"
  45             if test -f "/usr/lib/python$v/site-packages/PIL/_imaging.so";then
  46                 PYTHON_LIB2="$PYTHON_LIB /usr/lib/python$v/site-packages/PIL/_imaging.so"
  47                 HAVE_PYTHON_IMAGING_LIB=1
  48             else
  49                 PYTHON_LIB2="$PYTHON_LIB"
  50             fi
  51             PYTHON_INCLUDES="-I/usr/include/python$PY_VERSION"
  52         # Mac OS X
  53         elif test -f "/Library/Frameworks/Python.framework/Versions/$v/include/python$v/Python.h";then
  54             PY_VERSION=$v
  55             PYTHON_LIB="-framework Python"
  56             if test -f "/Library/Frameworks/Python.framework/Versions/$v/site-packages/PIL/_imaging.so";then
  57                 PYTHON_LIB2="$PYTHON_LIB /Library/Python/$v/PIL/_imaging.so"
  58                 HAVE_PYTHON_IMAGING_LIB=1
  59             else
  60                 PYTHON_LIB2="$PYTHON_LIB"
  61             fi
  62             PYTHON_INCLUDES="-I/Library/Frameworks/Python.framework/Versions/$v/include/python$v/"
  63         # Mac OS X [Fink]:
  64         elif test "(" -f "/sw/lib/python$v/config/libpython$v.dylib" \
  65                    -o -f "/sw/lib/python$v/config/libpython$v.a" \
  66                    -o -f "/sw/lib/python$v/config/libpython$v.so" \
  67                   ")" \
  68                -a -f "/sw/include/python$v/Python.h"; then
  69             PY_VERSION=$v
  70             PYTHON_LIB="-L /sw/lib/python$v/config/ -lpython$PY_VERSION /sw/lib/python$v/site-packages/PIL/_imaging.so"
  71             if test -f "/sw/lib/python$v/site-packages/PIL/_imaging.so";then
  72                 PYTHON_LIB2="$PYTHON_LIB /sw/lib/python$v/site-packages/PIL/_imaging.so"
  73                 HAVE_PYTHON_IMAGING_LIB=1
  74             else
  75                 PYTHON_LIB2="$PYTHON_LIB"
  76             fi
  77             PYTHON_INCLUDES="-I /sw/include/python$v/"
  78         fi
  79     done
  80 fi
  81 AC_MSG_RESULT($PY_VERSION)
  82
  83 if test "x$PY_VERSION" "!=" "x"; then
  84     AC_MSG_CHECKING([for Python executable])
  85     if python$PY_VERSION -V 2>&5;then
  86         PYTHON_EXECUTABLE=python$PY_VERSION
  87         AC_SUBST(PYTHON_EXECUTABLE)
  88         AC_MSG_RESULT([$PYTHON_EXECUTABLE])
  89     else
  90         AC_MSG_RESULT([failed])
  91     fi
  92 fi
  93
  94 if test "x$PY_VERSION" "!=" "x" -a "x$PYTHON_EXECUTABLE" "!=" "x"; then
  95     export PYTHON_INCLUDES PYTHON_LIB
  96     AC_SUBST(PYTHON_LIB)
  97     AC_SUBST(PYTHON_INCLUDES)
  98     AC_MSG_CHECKING([whether we can compile the Python test program])
  99
 100     cat > conftest.c << EOF
 101 #   include <Python.h>
 102
 103     int main()
 104     {
 105         int ret;
 106         ret = Py_Main(0, 0);
 107         int x; // check also for gcc 2.95.x incompatibilities
 108         return ret;
 109     }
 110 EOF
 111
 112     ac_link='$CC $CPPFLAGS $CFLAGS $PYTHON_INCLUDES conftest.c $LDFLAGS $PYTHON_LIB $LIBS -o conftest${ac_exeext}'
 113     if { (eval echo python.m4: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
 114         AC_MSG_RESULT(yes)
 115         PYTHON_OK=yes
 116     else
 117         echo "configure: failed program was:" >&5
 118         cat conftest.c >&5
 119         AC_MSG_RESULT(no)
 120     fi
 121     rm -f conftest*
 122
 123     AC_MSG_CHECKING([for Python install path])
 124 cat > _pypath.py << EOF
 125 import distutils
 126 import distutils.sysconfig
 127 import sys
 128 sys.stdout.write(distutils.sysconfig.get_python_lib(plat_specific=0,standard_lib=0))
 129 EOF
 130     echo $PYTHON_EXECUTABLE _pypath.py 1>&5
 131     if $PYTHON_EXECUTABLE _pypath.py >_pypath.txt 2>&5;then
 132         PYTHON_INSTALL_PATH=`cat _pypath.txt`
 133         AC_SUBST(PYTHON_INSTALL_PATH)
 134         AC_MSG_RESULT($PYTHON_INSTALL_PATH)
 135     else
 136         AC_MSG_RESULT([failed])
 137     fi
 138     #rm -f _pypath.txt _pypath.py
 139
 140     if test "x$PYTHON_OK" = "xyes";then
 141         AC_MSG_CHECKING([for Python-Imaging])
 142     cat > conftest.c << EOF
 143 #   include <Python.h>
 144 #   include <Imaging.h>
 145
 146     int main()
 147     {
 148         Py_Main(0, 0);
 149         return 0;
 150     }
 151 EOF
 152         if test "$HAVE_PYTHON_IMAGING_LIB"; then
 153             ac_link='$CC $CPPFLAGS $CFLAGS $PYTHON_INCLUDES conftest.c $LDFLAGS ${PYTHON_LIB2} $LIBS -o conftest${ac_exeext}'
 154             if { (eval echo python.m4: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
 155                 PYTHON_LIB="${PYTHON_LIB2}"
 156                 AC_DEFINE([HAVE_PYTHON_IMAGING], [1], [whether Python-Imaging was found])
 157                 HAVE_PYTHON_IMAGING=yes
 158                 export HAVE_PYTHON_IMAGING
 159                 AC_SUBST(HAVE_PYTHON_IMAGING)
 160                 AC_MSG_RESULT(yes)
 161             else
 162                 echo "configure: failed program was:" >&5
 163                 cat conftest.c >&5
 164                 AC_MSG_RESULT(no)
 165             fi
 166         else
 167             echo "(didn't find the Python-Imaging libraries)" >&5
 168             AC_MSG_RESULT(no)
 169         fi
 170     fi
 171     rm -f conftest*
 172 fi
 173 ])