patch 7.4.2210
Problem:    On OSX configure mixes up a Python framework and the Unix layout.
Solution:   Make configure check properly. (Tim D. Smith, closes #980)
diff --git a/src/configure.in b/src/configure.in
index 504aca6..c0a60b2 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -1193,7 +1193,7 @@
 	    dnl -- delete the lines from make about Entering/Leaving directory
 	    eval "`cd ${PYTHON_CONFDIR} && make -f "${tmp_mkf}" __ | sed '/ directory /d'`"
 	    rm -f -- "${tmp_mkf}"
-	    if test "x$MACOSX" = "xyes" && ${vi_cv_path_python} -c \
+	    if test "x$MACOSX" = "xyes" && test -n "${python_PYTHONFRAMEWORK}" && ${vi_cv_path_python} -c \
 		"import sys; sys.exit(${vi_cv_var_python_version} < 2.3)"; then
 	      vi_cv_path_python_plibs="-framework Python"
 	      if test "x${vi_cv_path_python}" != "x/usr/bin/python" && test -n "${python_PYTHONFRAMEWORKPREFIX}"; then