diff --git a/Makefile.pre.in b/Makefile.pre.in
index e288964..2b054684 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -1365,10 +1365,10 @@
 # Create a tags file for vi
 tags::
 	cd $(srcdir); \
-	ctags -w -t Include/*.h; \
-	for i in $(SRCDIRS); do ctags -w -t -a $$i/*.[ch]; \
+	ctags -w Include/*.h; \
+	for i in $(SRCDIRS); do ctags -f tags -w -a $$i/*.[ch]; \
 	done; \
-	sort -o tags tags
+	LC_ALL=C sort -o tags tags
 
 # Create a tags file for GNU Emacs
 TAGS::
diff --git a/configure b/configure
index 40549d0..35fbeac 100755
--- a/configure
+++ b/configure
@@ -15028,7 +15028,7 @@
 done
 
 
-SRCDIRS="Parser Grammar Objects Python Modules Mac"
+SRCDIRS="Parser Objects Python Modules"
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for build directories" >&5
 $as_echo_n "checking for build directories... " >&6; }
 for dir in $SRCDIRS; do
diff --git a/configure.ac b/configure.ac
index 5bd9b9d..75a62d2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4729,7 +4729,7 @@
 done
 
 AC_SUBST(SRCDIRS)
-SRCDIRS="Parser Grammar Objects Python Modules Mac"
+SRCDIRS="Parser Objects Python Modules"
 AC_MSG_CHECKING(for build directories)
 for dir in $SRCDIRS; do
     if test ! -d $dir; then