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# AX_PYTHON_ENV(PYTHON_BIN, VAR_NAME)
# ---------------------------------------------------------------------------
AC_DEFUN([AX_PYTHON_ENV], [
AC_ARG_VAR( [PY2_EXTRA_LDFLAGS], [override additional Python 2 linker flags from disutils.sysconfig() ] )dnl
AC_ARG_VAR( [PY2_EXTRA_LIBS], [override additional Python 2 libraries from disutils.sysconfig()] )dnl
AC_ARG_VAR( [PY3_EXTRA_LDFLAGS], [override additional Python 3 linker flags from distutils.sysconfig() ] )dnl
AC_ARG_VAR( [PY3_EXTRA_LIBS], [override additional Python 3 libraries from distutils.sysconfig()] )dnl
python=$1
dnl AC_MSG_NOTICE( [=====> Macro ax_python_env, python=$python])
dnl AC_MSG_CHECKING(python version)
pyver=`$python -c "import sys; print( sys.version_info.major)"`
dnl AC_MSG_NOTICE( [ pyver = $pyver])
AC_MSG_NOTICE( [=====> Macro ax_python_env, python=$python, pyver=$pyver])
#
# libraries which must be linked in when embedding
#
dnl AS_IF( [test 0$pyver == 2 -a -z "$PY2_EXTRA_LIBS" -o 0$pyver == 3 -a -z "$PY3_EXTRA_LIBS" ], [
dnl AC_MSG_NOTICE([Not preset])
AC_MSG_CHECKING(Python $pyver extra libraries)
extra_ldflags=`$python -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
AC_MSG_RESULT( [$extra_ldflags] )
AS_IF( [ test 0$pyver -eq 2 ], [
dnl AC_MSG_NOTICE( [pyver == 2] )
AS_IF( [test -z "$PY2_EXTRA_LIBS"], [
dnl AC_MSG_NOTICE( [Setting PY2_EXTRA_LIBS] )
PY2_EXTRA_LIBS=$extra_ldflags
])
], [
dnl AC_MSG_NOTICE([pyver == 3])
AS_IF( [test -z "$PY3_EXTRA_LIBS"], [
dnl AC_MSG_NOTICE( [Setting PY3_EXTRA_LIBS] )
PY3_EXTRA_LIBS=$extra_ldflags
])
])
dnl ],[
dnl AC_MSG_NOTICE([ _EXTRA_LIBS preset])
dnl ])
#
# linking flags when embedding
#
AC_MSG_CHECKING(Python $pyver extra linking flags)
link_flags=`$python -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print (conf('LINKFORSHARED'))"`
AC_MSG_RESULT( [$link_flags] )
AS_IF( [ test 0$pyver -eq 2 ], [
dnl AC_MSG_NOTICE( [pyver == 2] )
AS_IF( [test -z "$PY2_EXTRA_LDFLAGS"], [
dnl AC_MSG_NOTICE( [Setting PY2_EXTRA_LDFLAGS] )
PY2_EXTRA_LDFLAGS=$link_flags
])
], [
dnl AC_MSG_NOTICE([pyver == 3])
AS_IF( [test -z "$PY3_EXTRA_LDFLAGS"], [
dnl AC_MSG_NOTICE( [Setting PY3_EXTRA_LDFLAGS] )
PY3_EXTRA_LDFLAGS=$link_flags
])
])
#
# /usr package exec directory
#
# should this be precious? what should variable name be?
AC_MSG_CHECKING(Python $pyver /usr extension directory)
exec_dir=`$python -c "import sys; \
import distutils.sysconfig; \
result = distutils.sysconfig.get_python_lib(1,0); \
sys.stdout.write(result)"`
AC_MSG_RESULT( [$exec_dir] )
AS_IF( [ test 0$pyver -eq 2 ], [
dnl AC_MSG_NOTICE( [pyver == 2] )
AS_IF( [test -z "$usr_py2execdir"], [
dnl AC_MSG_NOTICE( [Setting usr_py2execdir] )
usr_py2execdir=$exec_dir
])
], [
dnl AC_MSG_NOTICE([pyver == 3])
AS_IF( [test -z "$usr_py3execdir"], [
dnl AC_MSG_NOTICE( [Setting usr_py3execdir] )
usr_py3execdir=$exec_dir
])
])
vname=alt_py${pyver}execdir
eval $vname=$exec_dir
])
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