--- a/src/auto/configure
+++ b/src/auto/configure
@@ -644,6 +644,7 @@ TCL_SRC
 vi_cv_path_tcl
 PYTHON_OBJ
 PYTHON_SRC
+PYTHON_NOPROTO
 PYTHON_CFLAGS
 PYTHON_GETPATH_CFLAGS
 PYTHON_LIBS
@@ -4903,7 +4904,7 @@ else
 	    tmp_mkf="$pwd/config-PyMake$$"
 	    cat -- "${PYTHON_CONFDIR}/Makefile" - <<'eof' >"${tmp_mkf}"
 __:
-	@echo "python_MODLIBS='$(MODLIBS)'"
+	@echo "python_BASEMODLIBS='$(BASEMODLIBS)'"
 	@echo "python_LIBS='$(LIBS)'"
 	@echo "python_SYSLIBS='$(SYSLIBS)'"
 	@echo "python_LINKFORSHARED='$(LINKFORSHARED)'"
@@ -4919,7 +4920,7 @@ eof
 	      else
 		  vi_cv_path_python_plibs="-L${PYTHON_CONFDIR} -lpython${vi_cv_var_python_version}"
 	      fi
-	      vi_cv_path_python_plibs="${vi_cv_path_python_plibs} ${python_MODLIBS} ${python_LIBS} ${python_SYSLIBS} ${python_LINKFORSHARED}"
+	      vi_cv_path_python_plibs="${vi_cv_path_python_plibs} ${python_BASEMODLIBS} ${python_LIBS} ${python_SYSLIBS} ${python_LINKFORSHARED}"
 	      	      vi_cv_path_python_plibs=`echo $vi_cv_path_python_plibs | sed s/-ltermcap//`
 	    fi
 
@@ -4932,6 +4933,7 @@ fi
 	else
 	  PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version} -I${vi_cv_path_python_epfx}/include/python${vi_cv_var_python_version}"
 	fi
+	PYTHON_NOPROTO=
 	PYTHON_SRC="if_python.c"
 		if test "x$MACOSX" = "xyes"; then
 	  PYTHON_OBJ="objects/if_python.o"
@@ -4943,7 +4945,7 @@ fi
 	fi
 	PYTHON_GETPATH_CFLAGS="-DPYTHONPATH='\"${vi_cv_path_pythonpath}\"' -DPREFIX='\"${vi_cv_path_python_pfx}\"' -DEXEC_PREFIX='\"${vi_cv_path_python_epfx}\"'"
 
-								{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -pthread should be used" >&5
+										{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -pthread should be used" >&5
 $as_echo_n "checking if -pthread should be used... " >&6; }
 	threadsafe_flag=
 	thread_lib=
@@ -4972,7 +4974,7 @@ main ()
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; PYTHON_CFLAGS="$PYTHON_CFLAGS $threadsafe_flag"
+$as_echo "yes" >&6; }; PYTHON_NOPROTO="$threadsafe_flag"
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }; LIBS=$libs_save_old
@@ -4990,7 +4992,7 @@ rm -f core conftest.err conftest.$ac_obj
 $as_echo_n "checking if compile and link flags for Python are sane... " >&6; }
 	cflags_save=$CFLAGS
 	libs_save=$LIBS
-	CFLAGS="$CFLAGS $PYTHON_CFLAGS"
+	CFLAGS="$CFLAGS $PYTHON_CFLAGS $PYTHON_NOPROTO"
 	LIBS="$LIBS $PYTHON_LIBS"
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5023,6 +5025,7 @@ rm -f core conftest.err conftest.$ac_obj
 	  PYTHON_OBJ=
 	  PYTHON_LIBS=
 	  PYTHON_CFLAGS=
+	  PYTHON_NOPROTO=
 	fi
 
       fi
@@ -5039,6 +5042,7 @@ fi
 
 
 
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking --enable-tclinterp argument" >&5
 $as_echo_n "checking --enable-tclinterp argument... " >&6; }
 # Check whether --enable-tclinterp was given.