|
Line 0
Link Here
|
|
|
1 |
# =========================================================================== |
| 2 |
# http://www.gnu.org/software/autoconf-archive/ax_python_devel.html |
| 3 |
# =========================================================================== |
| 4 |
# |
| 5 |
# SYNOPSIS |
| 6 |
# |
| 7 |
# AX_PYTHON_DEVEL([version]) |
| 8 |
# |
| 9 |
# DESCRIPTION |
| 10 |
# |
| 11 |
# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it |
| 12 |
# in your configure.ac. |
| 13 |
# |
| 14 |
# This macro checks for Python and tries to get the include path to |
| 15 |
# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) |
| 16 |
# output variables. It also exports $(PYTHON_EXTRA_LIBS) and |
| 17 |
# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code. |
| 18 |
# |
| 19 |
# You can search for some particular version of Python by passing a |
| 20 |
# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please |
| 21 |
# note that you *have* to pass also an operator along with the version to |
| 22 |
# match, and pay special attention to the single quotes surrounding the |
| 23 |
# version number. Don't use "PYTHON_VERSION" for this: that environment |
| 24 |
# variable is declared as precious and thus reserved for the end-user. |
| 25 |
# |
| 26 |
# This macro should work for all versions of Python >= 2.1.0. As an end |
| 27 |
# user, you can disable the check for the python version by setting the |
| 28 |
# PYTHON_NOVERSIONCHECK environment variable to something else than the |
| 29 |
# empty string. |
| 30 |
# |
| 31 |
# If you need to use this macro for an older Python version, please |
| 32 |
# contact the authors. We're always open for feedback. |
| 33 |
# |
| 34 |
# LICENSE |
| 35 |
# |
| 36 |
# Copyright (c) 2009 Sebastian Huber <sebastian-huber@web.de> |
| 37 |
# Copyright (c) 2009 Alan W. Irwin <irwin@beluga.phys.uvic.ca> |
| 38 |
# Copyright (c) 2009 Rafael Laboissiere <rafael@laboissiere.net> |
| 39 |
# Copyright (c) 2009 Andrew Collier <colliera@ukzn.ac.za> |
| 40 |
# Copyright (c) 2009 Matteo Settenvini <matteo@member.fsf.org> |
| 41 |
# Copyright (c) 2009 Horst Knorr <hk_classes@knoda.org> |
| 42 |
# |
| 43 |
# This program is free software: you can redistribute it and/or modify it |
| 44 |
# under the terms of the GNU General Public License as published by the |
| 45 |
# Free Software Foundation, either version 3 of the License, or (at your |
| 46 |
# option) any later version. |
| 47 |
# |
| 48 |
# This program is distributed in the hope that it will be useful, but |
| 49 |
# WITHOUT ANY WARRANTY; without even the implied warranty of |
| 50 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| 51 |
# Public License for more details. |
| 52 |
# |
| 53 |
# You should have received a copy of the GNU General Public License along |
| 54 |
# with this program. If not, see <http://www.gnu.org/licenses/>. |
| 55 |
# |
| 56 |
# As a special exception, the respective Autoconf Macro's copyright owner |
| 57 |
# gives unlimited permission to copy, distribute and modify the configure |
| 58 |
# scripts that are the output of Autoconf when processing the Macro. You |
| 59 |
# need not follow the terms of the GNU General Public License when using |
| 60 |
# or distributing such scripts, even though portions of the text of the |
| 61 |
# Macro appear in them. The GNU General Public License (GPL) does govern |
| 62 |
# all other use of the material that constitutes the Autoconf Macro. |
| 63 |
# |
| 64 |
# This special exception to the GPL applies to versions of the Autoconf |
| 65 |
# Macro released by the Autoconf Archive. When you make and distribute a |
| 66 |
# modified version of the Autoconf Macro, you may extend this special |
| 67 |
# exception to the GPL to apply to your modified version as well. |
| 68 |
|
| 69 |
#serial 8 |
| 70 |
|
| 71 |
AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL]) |
| 72 |
AC_DEFUN([AX_PYTHON_DEVEL],[ |
| 73 |
# |
| 74 |
# Allow the use of a (user set) custom python version |
| 75 |
# |
| 76 |
AC_ARG_VAR([PYTHON_VERSION],[The installed Python |
| 77 |
version to use, for example '2.3'. This string |
| 78 |
will be appended to the Python interpreter |
| 79 |
canonical name.]) |
| 80 |
|
| 81 |
AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]]) |
| 82 |
if test -z "$PYTHON"; then |
| 83 |
AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path]) |
| 84 |
PYTHON_VERSION="" |
| 85 |
fi |
| 86 |
|
| 87 |
# |
| 88 |
# Check for a version of Python >= 2.1.0 |
| 89 |
# |
| 90 |
AC_MSG_CHECKING([for a version of Python >= '2.1.0']) |
| 91 |
ac_supports_python_ver=`$PYTHON -c "import sys; \ |
| 92 |
ver = sys.version.split ()[[0]]; \ |
| 93 |
print (ver >= '2.1.0')"` |
| 94 |
if test "$ac_supports_python_ver" != "True"; then |
| 95 |
if test -z "$PYTHON_NOVERSIONCHECK"; then |
| 96 |
AC_MSG_RESULT([no]) |
| 97 |
AC_MSG_FAILURE([ |
| 98 |
This version of the AC@&t@_PYTHON_DEVEL macro |
| 99 |
doesn't work properly with versions of Python before |
| 100 |
2.1.0. You may need to re-run configure, setting the |
| 101 |
variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG, |
| 102 |
PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand. |
| 103 |
Moreover, to disable this check, set PYTHON_NOVERSIONCHECK |
| 104 |
to something else than an empty string. |
| 105 |
]) |
| 106 |
else |
| 107 |
AC_MSG_RESULT([skip at user request]) |
| 108 |
fi |
| 109 |
else |
| 110 |
AC_MSG_RESULT([yes]) |
| 111 |
fi |
| 112 |
|
| 113 |
# |
| 114 |
# if the macro parameter ``version'' is set, honour it |
| 115 |
# |
| 116 |
if test -n "$1"; then |
| 117 |
AC_MSG_CHECKING([for a version of Python $1]) |
| 118 |
ac_supports_python_ver=`$PYTHON -c "import sys; \ |
| 119 |
ver = sys.version.split ()[[0]]; \ |
| 120 |
print (ver $1)"` |
| 121 |
if test "$ac_supports_python_ver" = "True"; then |
| 122 |
AC_MSG_RESULT([yes]) |
| 123 |
else |
| 124 |
AC_MSG_RESULT([no]) |
| 125 |
AC_MSG_ERROR([this package requires Python $1. |
| 126 |
If you have it installed, but it isn't the default Python |
| 127 |
interpreter in your system path, please pass the PYTHON_VERSION |
| 128 |
variable to configure. See ``configure --help'' for reference. |
| 129 |
]) |
| 130 |
PYTHON_VERSION="" |
| 131 |
fi |
| 132 |
fi |
| 133 |
|
| 134 |
# |
| 135 |
# Check if you have distutils, else fail |
| 136 |
# |
| 137 |
AC_MSG_CHECKING([for the distutils Python package]) |
| 138 |
ac_distutils_result=`$PYTHON -c "import distutils" 2>&1` |
| 139 |
if test -z "$ac_distutils_result"; then |
| 140 |
AC_MSG_RESULT([yes]) |
| 141 |
else |
| 142 |
AC_MSG_RESULT([no]) |
| 143 |
AC_MSG_ERROR([cannot import Python module "distutils". |
| 144 |
Please check your Python installation. The error was: |
| 145 |
$ac_distutils_result]) |
| 146 |
PYTHON_VERSION="" |
| 147 |
fi |
| 148 |
|
| 149 |
# |
| 150 |
# Check for Python include path |
| 151 |
# |
| 152 |
AC_MSG_CHECKING([for Python include path]) |
| 153 |
if test -z "$PYTHON_CPPFLAGS"; then |
| 154 |
python_path=`$PYTHON -c "import distutils.sysconfig; \ |
| 155 |
print (distutils.sysconfig.get_python_inc ());"` |
| 156 |
if test -n "${python_path}"; then |
| 157 |
python_path="-I$python_path" |
| 158 |
fi |
| 159 |
PYTHON_CPPFLAGS=$python_path |
| 160 |
fi |
| 161 |
AC_MSG_RESULT([$PYTHON_CPPFLAGS]) |
| 162 |
AC_SUBST([PYTHON_CPPFLAGS]) |
| 163 |
|
| 164 |
# |
| 165 |
# Check for Python library path |
| 166 |
# |
| 167 |
AC_MSG_CHECKING([for Python library path]) |
| 168 |
if test -z "$PYTHON_LDFLAGS"; then |
| 169 |
# (makes two attempts to ensure we've got a version number |
| 170 |
# from the interpreter) |
| 171 |
ac_python_version=`cat<<EOD | $PYTHON - |
| 172 |
|
| 173 |
# join all versioning strings, on some systems |
| 174 |
# major/minor numbers could be in different list elements |
| 175 |
from distutils.sysconfig import * |
| 176 |
ret = '' |
| 177 |
for e in get_config_vars ('VERSION'): |
| 178 |
if (e != None): |
| 179 |
ret += e |
| 180 |
print (ret) |
| 181 |
EOD` |
| 182 |
|
| 183 |
if test -z "$ac_python_version"; then |
| 184 |
if test -n "$PYTHON_VERSION"; then |
| 185 |
ac_python_version=$PYTHON_VERSION |
| 186 |
else |
| 187 |
ac_python_version=`$PYTHON -c "import sys; \ |
| 188 |
print (sys.version[[:3]])"` |
| 189 |
fi |
| 190 |
fi |
| 191 |
|
| 192 |
# Make the versioning information available to the compiler |
| 193 |
AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"], |
| 194 |
[If available, contains the Python version number currently in use.]) |
| 195 |
|
| 196 |
# First, the library directory: |
| 197 |
ac_python_libdir=`cat<<EOD | $PYTHON - |
| 198 |
|
| 199 |
# There should be only one |
| 200 |
import distutils.sysconfig |
| 201 |
for e in distutils.sysconfig.get_config_vars ('LIBDIR'): |
| 202 |
if e != None: |
| 203 |
print (e) |
| 204 |
break |
| 205 |
EOD` |
| 206 |
|
| 207 |
# Before checking for libpythonX.Y, we need to know |
| 208 |
# the extension the OS we're on uses for libraries |
| 209 |
# (we take the first one, if there's more than one fix me!): |
| 210 |
ac_python_soext=`$PYTHON -c \ |
| 211 |
"import distutils.sysconfig; \ |
| 212 |
print (distutils.sysconfig.get_config_vars('SO')[[0]])"` |
| 213 |
|
| 214 |
# Now, for the library: |
| 215 |
ac_python_soname=`$PYTHON -c \ |
| 216 |
"import distutils.sysconfig; \ |
| 217 |
print (distutils.sysconfig.get_config_vars('LDLIBRARY')[[0]])"` |
| 218 |
|
| 219 |
# Strip away extension from the end to canonicalize its name: |
| 220 |
ac_python_library=`echo "$ac_python_soname" | sed "s/${ac_python_soext}$//"` |
| 221 |
|
| 222 |
# This small piece shamelessly adapted from PostgreSQL python macro; |
| 223 |
# credits goes to momjian, I think. I'd like to put the right name |
| 224 |
# in the credits, if someone can point me in the right direction... ? |
| 225 |
# |
| 226 |
if test -n "$ac_python_libdir" -a -n "$ac_python_library" \ |
| 227 |
-a x"$ac_python_library" != x"$ac_python_soname" |
| 228 |
then |
| 229 |
# use the official shared library |
| 230 |
ac_python_library=`echo "$ac_python_library" | sed "s/^lib//"` |
| 231 |
PYTHON_LDFLAGS="-L$ac_python_libdir -l$ac_python_library" |
| 232 |
else |
| 233 |
# old way: use libpython from python_configdir |
| 234 |
ac_python_libdir=`$PYTHON -c \ |
| 235 |
"from distutils.sysconfig import get_python_lib as f; \ |
| 236 |
import os; \ |
| 237 |
print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"` |
| 238 |
PYTHON_LDFLAGS="-L$ac_python_libdir -lpython$ac_python_version" |
| 239 |
fi |
| 240 |
|
| 241 |
if test -z "PYTHON_LDFLAGS"; then |
| 242 |
AC_MSG_ERROR([ |
| 243 |
Cannot determine location of your Python DSO. Please check it was installed with |
| 244 |
dynamic libraries enabled, or try setting PYTHON_LDFLAGS by hand. |
| 245 |
]) |
| 246 |
fi |
| 247 |
fi |
| 248 |
AC_MSG_RESULT([$PYTHON_LDFLAGS]) |
| 249 |
AC_SUBST([PYTHON_LDFLAGS]) |
| 250 |
|
| 251 |
# |
| 252 |
# Check for site packages |
| 253 |
# |
| 254 |
AC_MSG_CHECKING([for Python site-packages path]) |
| 255 |
if test -z "$PYTHON_SITE_PKG"; then |
| 256 |
PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \ |
| 257 |
print (distutils.sysconfig.get_python_lib(0,0));"` |
| 258 |
fi |
| 259 |
AC_MSG_RESULT([$PYTHON_SITE_PKG]) |
| 260 |
AC_SUBST([PYTHON_SITE_PKG]) |
| 261 |
|
| 262 |
# |
| 263 |
# libraries which must be linked in when embedding |
| 264 |
# |
| 265 |
AC_MSG_CHECKING(python extra libraries) |
| 266 |
if test -z "$PYTHON_EXTRA_LIBS"; then |
| 267 |
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \ |
| 268 |
conf = distutils.sysconfig.get_config_var; \ |
| 269 |
print (conf('LOCALMODLIBS') + ' ' + conf('LIBS'))"` |
| 270 |
fi |
| 271 |
AC_MSG_RESULT([$PYTHON_EXTRA_LIBS]) |
| 272 |
AC_SUBST(PYTHON_EXTRA_LIBS) |
| 273 |
|
| 274 |
# |
| 275 |
# linking flags needed when embedding |
| 276 |
# |
| 277 |
AC_MSG_CHECKING(python extra linking flags) |
| 278 |
if test -z "$PYTHON_EXTRA_LDFLAGS"; then |
| 279 |
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \ |
| 280 |
conf = distutils.sysconfig.get_config_var; \ |
| 281 |
print (conf('LINKFORSHARED'))"` |
| 282 |
fi |
| 283 |
AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS]) |
| 284 |
AC_SUBST(PYTHON_EXTRA_LDFLAGS) |
| 285 |
|
| 286 |
# |
| 287 |
# final check to see if everything compiles alright |
| 288 |
# |
| 289 |
AC_MSG_CHECKING([consistency of all components of python development environment]) |
| 290 |
# save current global flags |
| 291 |
ac_save_LIBS="$LIBS" |
| 292 |
ac_save_CPPFLAGS="$CPPFLAGS" |
| 293 |
LIBS="$ac_save_LIBS $PYTHON_LDFLAGS $PYTHON_EXTRA_LDFLAGS $PYTHON_EXTRA_LIBS" |
| 294 |
CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS" |
| 295 |
AC_LANG_PUSH([C]) |
| 296 |
AC_LINK_IFELSE([ |
| 297 |
AC_LANG_PROGRAM([[#include <Python.h>]], |
| 298 |
[[Py_Initialize();]]) |
| 299 |
],[pythonexists=yes],[pythonexists=no]) |
| 300 |
AC_LANG_POP([C]) |
| 301 |
# turn back to default flags |
| 302 |
CPPFLAGS="$ac_save_CPPFLAGS" |
| 303 |
LIBS="$ac_save_LIBS" |
| 304 |
|
| 305 |
AC_MSG_RESULT([$pythonexists]) |
| 306 |
|
| 307 |
if test ! "x$pythonexists" = "xyes"; then |
| 308 |
AC_MSG_FAILURE([ |
| 309 |
Could not link test program to Python. Maybe the main Python library has been |
| 310 |
installed in some non-standard library path. If so, pass it to configure, |
| 311 |
via the LDFLAGS environment variable. |
| 312 |
Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" |
| 313 |
============================================================================ |
| 314 |
ERROR! |
| 315 |
You probably have to install the development version of the Python package |
| 316 |
for your distribution. The exact name of this package varies among them. |
| 317 |
============================================================================ |
| 318 |
]) |
| 319 |
PYTHON_VERSION="" |
| 320 |
fi |
| 321 |
|
| 322 |
# |
| 323 |
# all done! |
| 324 |
# |
| 325 |
]) |