Switch back to using AM_PATH_PYTHON for python detection. Make the python install directory before running setup.py.

Author: tskisner

configure.ac

@@ -183,9 +183,9 @@ if test $healpix_static = yes; then
   healpix_python=no
 fi
 if test $healpix_python = yes; then
-  AX_PYTHON
+  AM_PATH_PYTHON
 fi
-if test x$PYTHON_BIN = x; then
+if test x$PYTHON = x; then
   healpix_python=no
 fi
 AC_LANG_POP([C])

src/healpy/Makefile.am

@@ -27,7 +27,8 @@ setup.py : $(srcdir)/setup.py.in $(srcdir)/setup.cfg.in $(srcdir)/gen_setup.sh
 # Actually run the setup.py script, at "make install" time
 
 install-exec-hook :
-	@$(PYTHON_BIN) setup.py install
+	mkdir -p "$(pythondir)"
+	@$(PYTHON) setup.py install
 
 clean-local :
 	rm -rf build dist healpy.egg-info