Differential D40226 Diff 122271 contrib/ldns/ax_python_devel.m4

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contrib/ldns/ax_python_devel.m4

# ===========================================================================		# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_python_devel.html		# https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
# ===========================================================================		# ===========================================================================
#		#
# SYNOPSIS		# SYNOPSIS
#		#
# AX_PYTHON_DEVEL([version])		# AX_PYTHON_DEVEL([version])
#		#
# DESCRIPTION		# DESCRIPTION
#		#
# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it		# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it
# in your configure.ac.		# in your configure.ac.
#		#
# This macro checks for Python and tries to get the include path to		# This macro checks for Python and tries to get the include path to
# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS)		# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) output
# output variables. It also exports $(PYTHON_EXTRA_LIBS) and		# variables. It also exports $(PYTHON_EXTRA_LIBS) and
# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.		# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
#		#
# You can search for some particular version of Python by passing a		# You can search for some particular version of Python by passing a
# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please		# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please
# note that you have to pass also an operator along with the version to		# note that you have to pass also an operator along with the version to
# match, and pay special attention to the single quotes surrounding the		# match, and pay special attention to the single quotes surrounding the
# version number. Don't use "PYTHON_VERSION" for this: that environment		# version number. Don't use "PYTHON_VERSION" for this: that environment
# variable is declared as precious and thus reserved for the end-user.		# variable is declared as precious and thus reserved for the end-user.
Show All 22 Lines
# option) any later version.		# option) any later version.
#		#
# This program is distributed in the hope that it will be useful, but		# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of		# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General		# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.		# Public License for more details.
#		#
# You should have received a copy of the GNU General Public License along		# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.		# with this program. If not, see <https://www.gnu.org/licenses/>.
#		#
# As a special exception, the respective Autoconf Macro's copyright owner		# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure		# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You		# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using		# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the		# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern		# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.		# all other use of the material that constitutes the Autoconf Macro.
#		#
# This special exception to the GPL applies to versions of the Autoconf		# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a		# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special		# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.		# exception to the GPL to apply to your modified version as well.

#serial 16		#serial 21

AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])		AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
AC_DEFUN([AX_PYTHON_DEVEL],[		AC_DEFUN([AX_PYTHON_DEVEL],[
#		#
# Allow the use of a (user set) custom python version		# Allow the use of a (user set) custom python version
#		#
AC_ARG_VAR([PYTHON_VERSION],[The installed Python		AC_ARG_VAR([PYTHON_VERSION],[The installed Python
version to use, for example '2.3'. This string		version to use, for example '2.3'. This string
Show All 15 Lines	ac_supports_python_ver=`$PYTHON -c "import sys; \
print (ver >= '2.1.0')"`		print (ver >= '2.1.0')"`
if test "$ac_supports_python_ver" != "True"; then		if test "$ac_supports_python_ver" != "True"; then
if test -z "$PYTHON_NOVERSIONCHECK"; then		if test -z "$PYTHON_NOVERSIONCHECK"; then
AC_MSG_RESULT([no])		AC_MSG_RESULT([no])
AC_MSG_FAILURE([		AC_MSG_FAILURE([
This version of the AC@&t@_PYTHON_DEVEL macro		This version of the AC@&t@_PYTHON_DEVEL macro
doesn't work properly with versions of Python before		doesn't work properly with versions of Python before
2.1.0. You may need to re-run configure, setting the		2.1.0. You may need to re-run configure, setting the
variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG,		variables PYTHON_CPPFLAGS, PYTHON_LIBS, PYTHON_SITE_PKG,
PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.		PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
Moreover, to disable this check, set PYTHON_NOVERSIONCHECK		Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
to something else than an empty string.		to something else than an empty string.
])		])
else		else
AC_MSG_RESULT([skip at user request])		AC_MSG_RESULT([skip at user request])
fi		fi
else		else
Show All 21 Lines	])
fi		fi
fi		fi

#		#
# Check if you have distutils, else fail		# Check if you have distutils, else fail
#		#
AC_MSG_CHECKING([for the distutils Python package])		AC_MSG_CHECKING([for the distutils Python package])
ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`		ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
if test -z "$ac_distutils_result"; then		if test $? -eq 0; then
AC_MSG_RESULT([yes])		AC_MSG_RESULT([yes])
else		else
AC_MSG_RESULT([no])		AC_MSG_RESULT([no])
AC_MSG_ERROR([cannot import Python module "distutils".		AC_MSG_ERROR([cannot import Python module "distutils".
Please check your Python installation. The error was:		Please check your Python installation. The error was:
$ac_distutils_result])		$ac_distutils_result])
PYTHON_VERSION=""		PYTHON_VERSION=""
fi		fi
Show All 18 Lines	$ac_distutils_result])
fi		fi
AC_MSG_RESULT([$PYTHON_CPPFLAGS])		AC_MSG_RESULT([$PYTHON_CPPFLAGS])
AC_SUBST([PYTHON_CPPFLAGS])		AC_SUBST([PYTHON_CPPFLAGS])

#		#
# Check for Python library path		# Check for Python library path
#		#
AC_MSG_CHECKING([for Python library path])		AC_MSG_CHECKING([for Python library path])
if test -z "$PYTHON_LDFLAGS"; then		if test -z "$PYTHON_LIBS"; then
# (makes two attempts to ensure we've got a version number		# (makes two attempts to ensure we've got a version number
# from the interpreter)		# from the interpreter)
ac_python_version=`cat<<EOD \| $PYTHON -		ac_python_version=`cat<<EOD \| $PYTHON -

# join all versioning strings, on some systems		# join all versioning strings, on some systems
# major/minor numbers could be in different list elements		# major/minor numbers could be in different list elements
from distutils.sysconfig import *		from distutils.sysconfig import *
e = get_config_var('VERSION')		e = get_config_var('VERSION')
Show All 38 Lines	EOD`
# This small piece shamelessly adapted from PostgreSQL python macro;		# This small piece shamelessly adapted from PostgreSQL python macro;
# credits goes to momjian, I think. I'd like to put the right name		# credits goes to momjian, I think. I'd like to put the right name
# in the credits, if someone can point me in the right direction... ?		# in the credits, if someone can point me in the right direction... ?
#		#
if test -n "$ac_python_libdir" -a -n "$ac_python_library"		if test -n "$ac_python_libdir" -a -n "$ac_python_library"
then		then
# use the official shared library		# use the official shared library
ac_python_library=`echo "$ac_python_library" \| sed "s/^lib//"`		ac_python_library=`echo "$ac_python_library" \| sed "s/^lib//"`
PYTHON_LDFLAGS="-L$ac_python_libdir -l$ac_python_library"		PYTHON_LIBS="-L$ac_python_libdir -l$ac_python_library"
else		else
# old way: use libpython from python_configdir		# old way: use libpython from python_configdir
ac_python_libdir=`$PYTHON -c \		ac_python_libdir=`$PYTHON -c \
"from distutils.sysconfig import get_python_lib as f; \		"from distutils.sysconfig import get_python_lib as f; \
import os; \		import os; \
print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`		print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
PYTHON_LDFLAGS="-L$ac_python_libdir -lpython$ac_python_version"		PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version"
fi		fi

if test -z "PYTHON_LDFLAGS"; then		if test -z "PYTHON_LIBS"; then
AC_MSG_ERROR([		AC_MSG_ERROR([
Cannot determine location of your Python DSO. Please check it was installed with		Cannot determine location of your Python DSO. Please check it was installed with
dynamic libraries enabled, or try setting PYTHON_LDFLAGS by hand.		dynamic libraries enabled, or try setting PYTHON_LIBS by hand.
])		])
fi		fi
fi		fi
AC_MSG_RESULT([$PYTHON_LDFLAGS])		AC_MSG_RESULT([$PYTHON_LIBS])
AC_SUBST([PYTHON_LDFLAGS])		AC_SUBST([PYTHON_LIBS])

#		#
# Check for site packages		# Check for site packages
#		#
AC_MSG_CHECKING([for Python site-packages path])		AC_MSG_CHECKING([for Python site-packages path])
if test -z "$PYTHON_SITE_PKG"; then		if test -z "$PYTHON_SITE_PKG"; then
PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \		PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
print (distutils.sysconfig.get_python_lib(1,0));"`		print (distutils.sysconfig.get_python_lib(1,0));"`
fi		fi
AC_MSG_RESULT([$PYTHON_SITE_PKG])		AC_MSG_RESULT([$PYTHON_SITE_PKG])
AC_SUBST([PYTHON_SITE_PKG])		AC_SUBST([PYTHON_SITE_PKG])

#		#
# libraries which must be linked in when embedding		# libraries which must be linked in when embedding
#		#
AC_MSG_CHECKING(python extra libraries)		AC_MSG_CHECKING(python extra libraries)
if test -z "$PYTHON_EXTRA_LIBS"; then		if test -z "$PYTHON_EXTRA_LIBS"; then
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \		PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \		conf = distutils.sysconfig.get_config_var; \
print (conf('LIBS'))"`		print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
fi		fi
AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])		AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
AC_SUBST(PYTHON_EXTRA_LIBS)		AC_SUBST(PYTHON_EXTRA_LIBS)

#		#
# linking flags needed when embedding		# linking flags needed when embedding
#		#
AC_MSG_CHECKING(python extra linking flags)		AC_MSG_CHECKING(python extra linking flags)
if test -z "$PYTHON_EXTRA_LDFLAGS"; then		if test -z "$PYTHON_EXTRA_LDFLAGS"; then
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \		PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \		conf = distutils.sysconfig.get_config_var; \
print (conf('LINKFORSHARED'))"`		print (conf('LINKFORSHARED'))"`
fi		fi
AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])		AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
AC_SUBST(PYTHON_EXTRA_LDFLAGS)		AC_SUBST(PYTHON_EXTRA_LDFLAGS)

#		#
# final check to see if everything compiles alright		# final check to see if everything compiles alright
#		#
AC_MSG_CHECKING([consistency of all components of python development environment])		AC_MSG_CHECKING([consistency of all components of python development environment])
# save current global flags		# save current global flags
ac_save_LIBS="$LIBS"		ac_save_LIBS="$LIBS"
		ac_save_LDFLAGS="$LDFLAGS"
ac_save_CPPFLAGS="$CPPFLAGS"		ac_save_CPPFLAGS="$CPPFLAGS"
LIBS="$ac_save_LIBS $PYTHON_LDFLAGS $PYTHON_EXTRA_LDFLAGS $PYTHON_EXTRA_LIBS"		LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_EXTRA_LIBS"
		LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"		CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
AC_LANG_PUSH([C])		AC_LANG_PUSH([C])
AC_LINK_IFELSE([		AC_LINK_IFELSE([
AC_LANG_PROGRAM([[#include <Python.h>]],		AC_LANG_PROGRAM([[#include <Python.h>]],
[[Py_Initialize();]])		[[Py_Initialize();]])
],[pythonexists=yes],[pythonexists=no])		],[pythonexists=yes],[pythonexists=no])
AC_LANG_POP([C])		AC_LANG_POP([C])
# turn back to default flags		# turn back to default flags
CPPFLAGS="$ac_save_CPPFLAGS"		CPPFLAGS="$ac_save_CPPFLAGS"
LIBS="$ac_save_LIBS"		LIBS="$ac_save_LIBS"
		LDFLAGS="$ac_save_LDFLAGS"

AC_MSG_RESULT([$pythonexists])		AC_MSG_RESULT([$pythonexists])

if test ! "x$pythonexists" = "xyes"; then		if test ! "x$pythonexists" = "xyes"; then
AC_MSG_FAILURE([		AC_MSG_FAILURE([
Could not link test program to Python. Maybe the main Python library has been		Could not link test program to Python. Maybe the main Python library has been
installed in some non-standard library path. If so, pass it to configure,		installed in some non-standard library path. If so, pass it to configure,
via the LDFLAGS environment variable.		via the LIBS environment variable.
Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"		Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
============================================================================		============================================================================
ERROR!		ERROR!
You probably have to install the development version of the Python package		You probably have to install the development version of the Python package
for your distribution. The exact name of this package varies among them.		for your distribution. The exact name of this package varies among them.
============================================================================		============================================================================
])		])
PYTHON_VERSION=""		PYTHON_VERSION=""
fi		fi

#		#
# all done!		# all done!
#		#
])		])