updated for version 7.4.677
Problem:    Configure fails when specifying a python-config-dir. (Lcd)
Solution:   Check if PYTHONFRAMEWORKPREFIX is set.
diff --git a/src/auto/configure b/src/auto/configure
index b5d1782..a52d697 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -5906,7 +5906,7 @@
 	      else
 		  vi_cv_path_python_plibs="-L${PYTHON_CONFDIR} -lpython${vi_cv_var_python_version}"
 	      fi
-	      	      	      	      if test -n "${python_LINKFORSHARED}"; then
+	      	      	      	      if test -n "${python_LINKFORSHARED}" && test -n "${python_PYTHONFRAMEWORKPREFIX}"; then
 	        python_link_symbol=`echo ${python_LINKFORSHARED} | sed 's/\([^ \t][^ \t]*[ \t][ \t]*[^ \t][^ \t]*\)[ \t].*/\1/'`
 		python_link_path=`echo ${python_LINKFORSHARED} |   sed 's/\([^ \t][^ \t]*[ \t][ \t]*[^ \t][^ \t]*\)[ \t][ \t]*\(.*\)/\2/'`
 	        if test -n "${python_link_path}" && ! test -x "${python_link_path}"; then