build: Update Python autoconf macro
* configure.ac: Call AX_PYTHON_DEVEL with new "optional" argument. * m4/ax_python_devel.m4: Replace with current version from the autoconf archive. -- The new "optional" argument allows us to leave out one of our custom changes.
This commit is contained in:
Ingo Klöcker
parent
18388f93ab
commit
e3ae88267f
@ -607,7 +607,7 @@ if test "$found_py" = "1"; then
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unset am_cv_python_pythondir
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unset am_cv_python_pyexecdir
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AM_PATH_PYTHON(mym4pythonver, [
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AX_PYTHON_DEVEL
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AX_PYTHON_DEVEL([], [true])
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if test "$PYTHON_VERSION"; then
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PYTHONS="$(echo $PYTHONS $PYTHON)"
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PYTHON_VERSIONS="$(echo $PYTHON_VERSIONS $PYTHON_VERSION)"
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@ -1,10 +1,10 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
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# https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_PYTHON_DEVEL([version])
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# AX_PYTHON_DEVEL([version[,optional]])
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#
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# DESCRIPTION
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#
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@ -12,8 +12,8 @@
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# in your configure.ac.
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#
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# This macro checks for Python and tries to get the include path to
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# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS)
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# output variables. It also exports $(PYTHON_EXTRA_LIBS) and
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# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) output
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# variables. It also exports $(PYTHON_EXTRA_LIBS) and
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# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
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#
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# You can search for some particular version of Python by passing a
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@ -23,6 +23,11 @@
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# version number. Don't use "PYTHON_VERSION" for this: that environment
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# variable is declared as precious and thus reserved for the end-user.
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#
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# By default this will fail if it does not detect a development version of
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# python. If you want it to continue, set optional to true, like
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# AX_PYTHON_DEVEL([], [true]). The ax_python_devel_found variable will be
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# "no" if it fails.
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#
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# This macro should work for all versions of Python >= 2.1.0. As an end
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# user, you can disable the check for the python version by setting the
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# PYTHON_NOVERSIONCHECK environment variable to something else than the
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@ -67,10 +72,18 @@
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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#serial 17
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#serial 36
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AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
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AC_DEFUN([AX_PYTHON_DEVEL],[
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# Get whether it's optional
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if test -z "$2"; then
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ax_python_devel_optional=false
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else
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ax_python_devel_optional=$2
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fi
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ax_python_devel_found=yes
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#
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# Allow the use of a (user set) custom python version
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#
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@ -81,81 +94,147 @@ AC_DEFUN([AX_PYTHON_DEVEL],[
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AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]])
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if test -z "$PYTHON"; then
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AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
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AC_MSG_WARN([Cannot find python$PYTHON_VERSION in your system path])
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if ! $ax_python_devel_optional; then
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AC_MSG_ERROR([Giving up, python development not available])
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fi
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ax_python_devel_found=no
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PYTHON_VERSION=""
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fi
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#
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# Check for a version of Python >= 2.1.0
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#
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AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
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ac_supports_python_ver=`$PYTHON -c "import sys; \
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if test $ax_python_devel_found = yes; then
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#
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# Check for a version of Python >= 2.1.0
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#
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AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
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ac_supports_python_ver=`$PYTHON -c "import sys; \
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ver = sys.version.split ()[[0]]; \
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print (ver >= '2.1.0')"`
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if test "$ac_supports_python_ver" != "True"; then
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if test "$ac_supports_python_ver" != "True"; then
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if test -z "$PYTHON_NOVERSIONCHECK"; then
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AC_MSG_RESULT([no])
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AC_MSG_FAILURE([
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AC_MSG_WARN([
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This version of the AC@&t@_PYTHON_DEVEL macro
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doesn't work properly with versions of Python before
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2.1.0. You may need to re-run configure, setting the
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variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG,
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variables PYTHON_CPPFLAGS, PYTHON_LIBS, PYTHON_SITE_PKG,
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PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
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Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
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to something else than an empty string.
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])
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if ! $ax_python_devel_optional; then
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AC_MSG_FAILURE([Giving up])
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fi
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ax_python_devel_found=no
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PYTHON_VERSION=""
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else
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AC_MSG_RESULT([skip at user request])
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fi
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else
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else
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AC_MSG_RESULT([yes])
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fi
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fi
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#
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# if the macro parameter ``version'' is set, honour it
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#
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if test -n "$1"; then
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if test $ax_python_devel_found = yes; then
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#
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# If the macro parameter ``version'' is set, honour it.
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# A Python shim class, VPy, is used to implement correct version comparisons via
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# string expressions, since e.g. a naive textual ">= 2.7.3" won't work for
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# Python 2.7.10 (the ".1" being evaluated as less than ".3").
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#
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if test -n "$1"; then
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AC_MSG_CHECKING([for a version of Python $1])
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ac_supports_python_ver=`$PYTHON -c "import sys; \
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ver = sys.version.split ()[[0]]; \
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cat << EOF > ax_python_devel_vpy.py
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class VPy:
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def vtup(self, s):
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return tuple(map(int, s.strip().replace("rc", ".").split(".")))
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def __init__(self):
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import sys
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self.vpy = tuple(sys.version_info)[[:3]]
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def __eq__(self, s):
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return self.vpy == self.vtup(s)
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def __ne__(self, s):
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return self.vpy != self.vtup(s)
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def __lt__(self, s):
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return self.vpy < self.vtup(s)
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def __gt__(self, s):
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return self.vpy > self.vtup(s)
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def __le__(self, s):
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return self.vpy <= self.vtup(s)
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def __ge__(self, s):
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return self.vpy >= self.vtup(s)
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EOF
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ac_supports_python_ver=`$PYTHON -c "import ax_python_devel_vpy; \
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ver = ax_python_devel_vpy.VPy(); \
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print (ver $1)"`
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rm -rf ax_python_devel_vpy*.py* __pycache__/ax_python_devel_vpy*.py*
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if test "$ac_supports_python_ver" = "True"; then
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AC_MSG_RESULT([yes])
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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AC_MSG_ERROR([this package requires Python $1.
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AC_MSG_WARN([this package requires Python $1.
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If you have it installed, but it isn't the default Python
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interpreter in your system path, please pass the PYTHON_VERSION
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variable to configure. See ``configure --help'' for reference.
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])
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if ! $ax_python_devel_optional; then
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AC_MSG_ERROR([Giving up])
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fi
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ax_python_devel_found=no
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PYTHON_VERSION=""
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fi
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fi
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fi
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#
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# Check if you have distutils, else fail
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#
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AC_MSG_CHECKING([for the distutils Python package])
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ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
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if test -z "$ac_distutils_result"; then
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if test $ax_python_devel_found = yes; then
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#
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# Check if you have distutils, else fail
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#
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AC_MSG_CHECKING([for the sysconfig Python package])
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ac_sysconfig_result=`$PYTHON -c "import sysconfig" 2>&1`
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if test $? -eq 0; then
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AC_MSG_RESULT([yes])
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else
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IMPORT_SYSCONFIG="import sysconfig"
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else
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AC_MSG_RESULT([no])
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AC_MSG_ERROR([cannot import Python module "distutils".
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AC_MSG_CHECKING([for the distutils Python package])
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ac_sysconfig_result=`$PYTHON -c "from distutils import sysconfig" 2>&1`
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if test $? -eq 0; then
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AC_MSG_RESULT([yes])
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IMPORT_SYSCONFIG="from distutils import sysconfig"
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else
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AC_MSG_WARN([cannot import Python module "distutils".
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Please check your Python installation. The error was:
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$ac_distutils_result])
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PYTHON_VERSION=""
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$ac_sysconfig_result])
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if ! $ax_python_devel_optional; then
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AC_MSG_ERROR([Giving up])
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fi
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ax_python_devel_found=no
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PYTHON_VERSION=""
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fi
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fi
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fi
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#
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# Check for Python include path
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#
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AC_MSG_CHECKING([for Python include path])
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if test -z "$PYTHON_CPPFLAGS"; then
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python_path=`$PYTHON -c "import distutils.sysconfig; \
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print (distutils.sysconfig.get_python_inc ());"`
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plat_python_path=`$PYTHON -c "import distutils.sysconfig; \
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print (distutils.sysconfig.get_python_inc (plat_specific=1));"`
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if test $ax_python_devel_found = yes; then
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#
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# Check for Python include path
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#
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AC_MSG_CHECKING([for Python include path])
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if test -z "$PYTHON_CPPFLAGS"; then
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if test "$IMPORT_SYSCONFIG" = "import sysconfig"; then
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# sysconfig module has different functions
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python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \
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print (sysconfig.get_path ('include'));"`
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plat_python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \
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print (sysconfig.get_path ('platinclude'));"`
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else
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# old distutils way
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python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \
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print (sysconfig.get_python_inc ());"`
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plat_python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \
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print (sysconfig.get_python_inc (plat_specific=1));"`
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fi
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if test -n "${python_path}"; then
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if test "${plat_python_path}" != "${python_path}"; then
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python_path="-I$python_path -I$plat_python_path"
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@ -164,22 +243,22 @@ $ac_distutils_result])
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fi
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fi
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PYTHON_CPPFLAGS=$python_path
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fi
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AC_MSG_RESULT([$PYTHON_CPPFLAGS])
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AC_SUBST([PYTHON_CPPFLAGS])
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fi
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AC_MSG_RESULT([$PYTHON_CPPFLAGS])
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AC_SUBST([PYTHON_CPPFLAGS])
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#
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# Check for Python library path
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#
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AC_MSG_CHECKING([for Python library path])
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if test -z "$PYTHON_LDFLAGS"; then
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#
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# Check for Python library path
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#
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AC_MSG_CHECKING([for Python library path])
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if test -z "$PYTHON_LIBS"; then
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# (makes two attempts to ensure we've got a version number
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# from the interpreter)
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ac_python_version=`cat<<EOD | $PYTHON -
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# join all versioning strings, on some systems
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# major/minor numbers could be in different list elements
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from distutils.sysconfig import *
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from sysconfig import *
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e = get_config_var('VERSION')
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if e is not None:
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print(e)
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@ -190,23 +269,20 @@ EOD`
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ac_python_version=$PYTHON_VERSION
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else
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ac_python_version=`$PYTHON -c "import sys; \
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print (sys.version[[:3]])"`
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print ("%d.%d" % sys.version_info[[:2]])"`
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fi
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fi
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# Make the versioning information available to the compiler
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# JW: We don't need it and it interferes with the hack
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# to detect multiple Pyhton versions
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#AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"],
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# [If available, contains the Python version number currently in use.])
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AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"],
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[If available, contains the Python version number currently in use.])
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# First, the library directory:
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ac_python_libdir=`cat<<EOD | $PYTHON -
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# There should be only one
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import distutils.sysconfig
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e = distutils.sysconfig.get_config_var('LIBDIR')
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$IMPORT_SYSCONFIG
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e = sysconfig.get_config_var('LIBDIR')
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if e is not None:
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print (e)
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EOD`
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@ -214,8 +290,8 @@ EOD`
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# Now, for the library:
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ac_python_library=`cat<<EOD | $PYTHON -
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import distutils.sysconfig
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c = distutils.sysconfig.get_config_vars()
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$IMPORT_SYSCONFIG
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c = sysconfig.get_config_vars()
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if 'LDVERSION' in c:
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print ('python'+c[['LDVERSION']])
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else:
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@ -230,94 +306,160 @@ EOD`
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then
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# use the official shared library
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ac_python_library=`echo "$ac_python_library" | sed "s/^lib//"`
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PYTHON_LDFLAGS="-L$ac_python_libdir -l$ac_python_library"
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PYTHON_LIBS="-L$ac_python_libdir -l$ac_python_library"
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else
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# old way: use libpython from python_configdir
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ac_python_libdir=`$PYTHON -c \
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"from distutils.sysconfig import get_python_lib as f; \
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"from sysconfig import get_python_lib as f; \
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import os; \
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print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
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PYTHON_LDFLAGS="-L$ac_python_libdir -lpython$ac_python_version"
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PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version"
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fi
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if test -z "PYTHON_LDFLAGS"; then
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AC_MSG_ERROR([
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if test -z "PYTHON_LIBS"; then
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AC_MSG_WARN([
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Cannot determine location of your Python DSO. Please check it was installed with
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dynamic libraries enabled, or try setting PYTHON_LDFLAGS by hand.
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dynamic libraries enabled, or try setting PYTHON_LIBS by hand.
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])
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if ! $ax_python_devel_optional; then
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AC_MSG_ERROR([Giving up])
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fi
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ax_python_devel_found=no
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PYTHON_VERSION=""
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fi
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fi
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fi
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AC_MSG_RESULT([$PYTHON_LDFLAGS])
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AC_SUBST([PYTHON_LDFLAGS])
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#
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# Check for site packages
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#
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AC_MSG_CHECKING([for Python site-packages path])
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if test -z "$PYTHON_SITE_PKG"; then
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PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
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print (distutils.sysconfig.get_python_lib(0,0));"`
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fi
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AC_MSG_RESULT([$PYTHON_SITE_PKG])
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AC_SUBST([PYTHON_SITE_PKG])
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if test $ax_python_devel_found = yes; then
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AC_MSG_RESULT([$PYTHON_LIBS])
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AC_SUBST([PYTHON_LIBS])
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#
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# libraries which must be linked in when embedding
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#
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AC_MSG_CHECKING(python extra libraries)
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if test -z "$PYTHON_EXTRA_LIBS"; then
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PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
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conf = distutils.sysconfig.get_config_var; \
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#
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# Check for site packages
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#
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AC_MSG_CHECKING([for Python site-packages path])
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if test -z "$PYTHON_SITE_PKG"; then
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if test "$IMPORT_SYSCONFIG" = "import sysconfig"; then
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PYTHON_SITE_PKG=`$PYTHON -c "
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$IMPORT_SYSCONFIG;
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if hasattr(sysconfig, 'get_default_scheme'):
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scheme = sysconfig.get_default_scheme()
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else:
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scheme = sysconfig._get_default_scheme()
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if scheme == 'posix_local':
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# Debian's default scheme installs to /usr/local/ but we want to find headers in /usr/
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scheme = 'posix_prefix'
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prefix = '$prefix'
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if prefix == 'NONE':
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prefix = '$ac_default_prefix'
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sitedir = sysconfig.get_path('purelib', scheme, vars={'base': prefix})
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print(sitedir)"`
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else
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# distutils.sysconfig way
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PYTHON_SITE_PKG=`$PYTHON -c "$IMPORT_SYSCONFIG; \
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print (sysconfig.get_python_lib(0,0));"`
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fi
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fi
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AC_MSG_RESULT([$PYTHON_SITE_PKG])
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AC_SUBST([PYTHON_SITE_PKG])
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#
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# Check for platform-specific site packages
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#
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AC_MSG_CHECKING([for Python platform specific site-packages path])
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if test -z "$PYTHON_PLATFORM_SITE_PKG"; then
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if test "$IMPORT_SYSCONFIG" = "import sysconfig"; then
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PYTHON_PLATFORM_SITE_PKG=`$PYTHON -c "
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$IMPORT_SYSCONFIG;
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if hasattr(sysconfig, 'get_default_scheme'):
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scheme = sysconfig.get_default_scheme()
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else:
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scheme = sysconfig._get_default_scheme()
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if scheme == 'posix_local':
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# Debian's default scheme installs to /usr/local/ but we want to find headers in /usr/
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scheme = 'posix_prefix'
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prefix = '$prefix'
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if prefix == 'NONE':
|
||||
prefix = '$ac_default_prefix'
|
||||
sitedir = sysconfig.get_path('platlib', scheme, vars={'platbase': prefix})
|
||||
print(sitedir)"`
|
||||
else
|
||||
# distutils.sysconfig way
|
||||
PYTHON_PLATFORM_SITE_PKG=`$PYTHON -c "$IMPORT_SYSCONFIG; \
|
||||
print (sysconfig.get_python_lib(1,0));"`
|
||||
fi
|
||||
fi
|
||||
AC_MSG_RESULT([$PYTHON_PLATFORM_SITE_PKG])
|
||||
AC_SUBST([PYTHON_PLATFORM_SITE_PKG])
|
||||
|
||||
#
|
||||
# libraries which must be linked in when embedding
|
||||
#
|
||||
AC_MSG_CHECKING(python extra libraries)
|
||||
if test -z "$PYTHON_EXTRA_LIBS"; then
|
||||
PYTHON_EXTRA_LIBS=`$PYTHON -c "$IMPORT_SYSCONFIG; \
|
||||
conf = sysconfig.get_config_var; \
|
||||
print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
|
||||
fi
|
||||
AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
|
||||
AC_SUBST(PYTHON_EXTRA_LIBS)
|
||||
fi
|
||||
AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
|
||||
AC_SUBST(PYTHON_EXTRA_LIBS)
|
||||
|
||||
#
|
||||
# linking flags needed when embedding
|
||||
#
|
||||
AC_MSG_CHECKING(python extra linking flags)
|
||||
if test -z "$PYTHON_EXTRA_LDFLAGS"; then
|
||||
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
|
||||
conf = distutils.sysconfig.get_config_var; \
|
||||
#
|
||||
# linking flags needed when embedding
|
||||
#
|
||||
AC_MSG_CHECKING(python extra linking flags)
|
||||
if test -z "$PYTHON_EXTRA_LDFLAGS"; then
|
||||
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "$IMPORT_SYSCONFIG; \
|
||||
conf = sysconfig.get_config_var; \
|
||||
print (conf('LINKFORSHARED'))"`
|
||||
fi
|
||||
AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
|
||||
AC_SUBST(PYTHON_EXTRA_LDFLAGS)
|
||||
# Hack for macos, it sticks this in here.
|
||||
PYTHON_EXTRA_LDFLAGS=`echo $PYTHON_EXTRA_LDFLAGS | sed 's/CoreFoundation.*$/CoreFoundation/'`
|
||||
fi
|
||||
AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
|
||||
AC_SUBST(PYTHON_EXTRA_LDFLAGS)
|
||||
|
||||
#
|
||||
# final check to see if everything compiles alright
|
||||
#
|
||||
AC_MSG_CHECKING([consistency of all components of python development environment])
|
||||
# save current global flags
|
||||
ac_save_LIBS="$LIBS"
|
||||
ac_save_CPPFLAGS="$CPPFLAGS"
|
||||
LIBS="$ac_save_LIBS $PYTHON_LDFLAGS $PYTHON_EXTRA_LDFLAGS $PYTHON_EXTRA_LIBS"
|
||||
CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
|
||||
AC_LANG_PUSH([C])
|
||||
AC_LINK_IFELSE([
|
||||
#
|
||||
# final check to see if everything compiles alright
|
||||
#
|
||||
AC_MSG_CHECKING([consistency of all components of python development environment])
|
||||
# save current global flags
|
||||
ac_save_LIBS="$LIBS"
|
||||
ac_save_LDFLAGS="$LDFLAGS"
|
||||
ac_save_CPPFLAGS="$CPPFLAGS"
|
||||
LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS"
|
||||
LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
|
||||
CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
|
||||
AC_LANG_PUSH([C])
|
||||
AC_LINK_IFELSE([
|
||||
AC_LANG_PROGRAM([[#include <Python.h>]],
|
||||
[[Py_Initialize();]])
|
||||
],[pythonexists=yes],[pythonexists=no])
|
||||
AC_LANG_POP([C])
|
||||
# turn back to default flags
|
||||
CPPFLAGS="$ac_save_CPPFLAGS"
|
||||
LIBS="$ac_save_LIBS"
|
||||
AC_LANG_POP([C])
|
||||
# turn back to default flags
|
||||
CPPFLAGS="$ac_save_CPPFLAGS"
|
||||
LIBS="$ac_save_LIBS"
|
||||
LDFLAGS="$ac_save_LDFLAGS"
|
||||
|
||||
AC_MSG_RESULT([$pythonexists])
|
||||
AC_MSG_RESULT([$pythonexists])
|
||||
|
||||
if test ! "x$pythonexists" = "xyes"; then
|
||||
AC_MSG_WARN([
|
||||
if test ! "x$pythonexists" = "xyes"; then
|
||||
AC_MSG_WARN([
|
||||
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,
|
||||
via the LDFLAGS environment variable.
|
||||
Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"
|
||||
via the LIBS environment variable.
|
||||
Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
|
||||
============================================================================
|
||||
ERROR!
|
||||
You probably have to install the development version of the Python package
|
||||
for your distribution. The exact name of this package varies among them.
|
||||
============================================================================
|
||||
])
|
||||
PYTHON_VERSION=""
|
||||
])
|
||||
if ! $ax_python_devel_optional; then
|
||||
AC_MSG_ERROR([Giving up])
|
||||
fi
|
||||
ax_python_devel_found=no
|
||||
PYTHON_VERSION=""
|
||||
fi
|
||||
fi
|
||||
|
||||
#
|
||||
|
||||
Loading…
Reference in New Issue
Block a user