uhd

dnl

dnl Copyright 2003,2004,2005 Free Software Foundation, Inc.

dnl 

dnl This file is part of GNU Radio

dnl 

dnl GNU Radio is free software; you can redistribute it and/or modify

dnl it under the terms of the GNU General Public License as published by

dnl the Free Software Foundation; either version 3, or (at your option)

dnl any later version.

dnl 

dnl GNU Radio is distributed in the hope that it will be useful,

dnl but WITHOUT ANY WARRANTY; without even the implied warranty of

dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

dnl GNU General Public License for more details.

dnl 

dnl You should have received a copy of the GNU General Public License

dnl along with GNU Radio; see the file COPYING.  If not, write to

dnl the Free Software Foundation, Inc., 51 Franklin Street,

dnl Boston, MA 02110-1301, USA.

dnl 

# PYTHON_DEVEL()

#

# Checks for Python and tries to get the include path to 'Python.h'.

# It sets the $(PYTHON_CPPFLAGS), $(PYTHON_LDFLAGS) and $(pythondir) output variables,

#

AC_DEFUN([PYTHON_DEVEL],[

	AC_REQUIRE([AM_PATH_PYTHON])

	AC_REQUIRE([AC_CANONICAL_HOST])

	AC_ARG_WITH(pythondir,

                    AC_HELP_STRING([--with-pythondir=DIR], 

                       [python installation directory (cross-compiling) [[default=$prefix/lib/python2.5/site-packages]]]),

		    [with_pythondir=${withval}],[with_pythondir=${prefix}/lib/python2.5/site-packages])

	# if we're cross-compiling, asking the host python about any of

	# this is completely useless...

	if test x$cross_compiling != xno

	then

		pythondir=$with_pythondir

		pyexecdir=$with_pythondir

		AC_SUBST(PYTHON_CPPFLAGS)

		AC_SUBST(PYTHON_LDFLAGS)

        else

	    # For Fedora Core 5 and 6, see ticket:39 in Trac

	    if test -f '/etc/redhat-release'; then

		    if  (echo $pyexecdir | grep -q lib64); then

			    pythondir="$pyexecdir"

		    fi

	    fi

	    # Check for Python include path

	    AC_MSG_CHECKING([for Python include path])

	    if test -z "$PYTHON" ; then

		    AC_MSG_ERROR([cannot find Python path])

	    fi

	    # ask distutils which include path we should use

	    python_cmd='

import distutils.sysconfig

import os

path = distutils.sysconfig.get_python_inc(plat_specific=False)

if os.sep == "\\":

  path = path.replace("\\", "/")

print path

'

	    python_path=`$PYTHON -c "$python_cmd"`

	    AC_MSG_RESULT([$python_path])

	    if test -z "$python_path" ; then

		    AC_MSG_ERROR([cannot find Python include path])

	    fi

	    AC_SUBST(PYTHON_CPPFLAGS,[-I$python_path])

	    # Check for Python headers usability

	    python_save_CPPFLAGS=$CPPFLAGS

	    CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"

	    AC_CHECK_HEADERS([Python.h], [],

			    [AC_MSG_ERROR([cannot find usable Python headers])])

	    CPPFLAGS="$python_save_CPPFLAGS"

	    # Only set this on mingw and cygwin hosts, (only implemented

	    # for mingw host, for crosscompiling you need to trick this)

	    PYTHON_LDFLAGS=""

	    case $host_os in

		 *mingw* | *cygwin* )

	      AC_MSG_CHECKING([for Python LDFLAGS])

	    python_cmd='

import distutils.sysconfig

import os

path = distutils.sysconfig.get_config_var("LIBPL")

if path == None:

  path = distutils.sysconfig.PREFIX + "/libs"

if os.sep == "\\":

  path = path.replace("\\", "/")

print path

'

	      python_stdlib_path=`$PYTHON -c "$python_cmd"`

	      python_version_nodot=`echo $PYTHON_VERSION | sed "s,\.,,"`

	      libpython_name="python$PYTHON_VERSION"

	      # Standard install of python for win32 has libpython24.a

	      # instead of libpython2.4.a so we check for the library

	      # without the dot in the version number.

	      python_stdlib_filename=`find $python_stdlib_path -type f -name libpython$python_version_nodot.* -print | sed "1q"`

	      if test -n "$python_stdlib_filename" ; then

		    libpython_name="python$python_version_nodot"

	      fi

	      PYTHON_LDFLAGS="-L$python_stdlib_path -l$libpython_name"

	      AC_MSG_RESULT($PYTHON_LDFLAGS) 

	      # Replace all backslashes in PYTHON Paths with forward slashes

	      pythondir=`echo $pythondir |sed 's,\\\\,/,g'`

	      pkgpythondir=`echo $pkgpythondir |sed 's,\\\\,/,g'`

	      pyexecdir=`echo $pyexecdir |sed 's,\\\\,/,g'`

	      pkgpyexecdir=`echo $pkgpyexecdir |sed 's,\\\\,/,g'`

	      ;;

	    esac

	    case $host_os in

		 *mingw* )

	      # Python 2.5 requires ".pyd" instead of ".dll" for extensions

	      PYTHON_LDFLAGS="-shrext .pyd ${PYTHON_LDFLAGS}"

	    esac

	    AC_SUBST(PYTHON_LDFLAGS)

	fi

])

# PYTHON_CHECK_MODULE

#

# Determines if a particular Python module can be imported

#

# $1 - module name

# $2 - module description

# $3 - action if found

# $4 - action if not found

# $5 - test command

AC_DEFUN([PYTHON_CHECK_MODULE],[

    AC_MSG_CHECKING([for $2])

    dnl ########################################

    dnl # import and test checking

    dnl ########################################

    if test "$5"; then

        python_cmd='

try:

    import $1

    assert $5

except: exit(1)'

    dnl ########################################

    dnl # import checking only

    dnl ########################################

    else

        python_cmd='

try: import $1

except: exit(1)'

    fi

    if ! $PYTHON -c "$python_cmd" 2> /dev/null; then

        AC_MSG_RESULT([no])

        $4

    else

        AC_MSG_RESULT([yes])

        $3

    fi

])