m4/python.m4

   1 # PYTHON_DEVEL()
   2 #
   3 # Checks for Python and tries to get the include path to 'Python.h', and
   4 # the libpython library.
   5 # It provides the $(PYTHON_CFLAGS) $(PYTHON_LIBS) $(PYTHON_LDFLAGS) output
   6 # variables.
   7 AC_DEFUN([PYTHON_DEVEL],
   8 [
   9   AC_REQUIRE([AM_PATH_PYTHON])
  10
  11   python_prefix=${PYTHON%/bin*}
  12
  13   # Check for Python include path
  14   AC_MSG_CHECKING([for python include path])
  15   for i in "$python_prefix/include/python$PYTHON_VERSION/" \
  16            "$python_prefix/include/python/" "$python_prefix/"
  17   do
  18     python_path=`find $i -type f -name Python.h -print 2> /dev/null`
  19     test "$python_path" && break
  20   done
  21   for i in $python_path
  22   do
  23     python_path=${python_path%/Python.h}
  24     break
  25   done
  26   if test "$python_path"
  27   then
  28     AC_MSG_RESULT([$python_path])
  29   else
  30     AC_MSG_ERROR([cannot find python include path])
  31   fi
  32   AC_SUBST([PYTHON_CFLAGS], [-I$python_path])
  33
  34   # Check for a Python library
  35   AC_MSG_CHECKING([for python library])
  36   PYLIB=""
  37   for i in "$python_prefix/lib" \
  38            "$python_prefix/lib/python$PYTHON_VERSION/config" \
  39            "$python_prefix/lib/python$PYTHON_VERSION/lib" \
  40            "$python_prefix/lib/python/lib"
  41   do
  42     if test -r "$i/libpython$PYTHON_VERSION.so"; then
  43       PYLIB="$i/libpython$PYTHON_VERSION.so"
  44       PYTHON_LIBS="-L$i -lpython$PYTHON_VERSION"
  45       PYTHON_LDFLAGS=""
  46       break
  47     else
  48       if test -r "$i/libpython$PYTHON_VERSION.a"; then
  49         PYLIB="$i/libpython$PYTHON_VERSION.a"
  50         PYTHON_LIBS="-L$i -lpython$PYTHON_VERSION -lpthread -ldl -lutil -lm"
  51         PYTHON_LDFLAGS="-export-dynamic"
  52         break
  53       else
  54         # look for really old versions
  55         if test -r "$i/libPython.a"; then
  56           PYLIB="$i/libPython.a"
  57           PYTHON_LIBS="-L$i -lModules -lPython -lObjects -lParser"
  58           PYTHON_LDFLAGS="-export-dynamic"
  59           break
  60         fi
  61       fi
  62     fi
  63   done
  64   if test "$PYLIB"
  65   then
  66     AC_MSG_RESULT([$PYLIB])
  67   else
  68     AC_MSG_ERROR([cannot find python library])
  69   fi
  70   AC_SUBST([PYTHON_LIBS])
  71   AC_SUBST([PYTHON_LDFLAGS])
  72 ])