remove a build warning

[Bruno Haible]

This warning occurs during "make po/libc.pot":

MakeTAGS:124: target `soft-fp/TAGS' given more than once in the same rule.
MakeTAGS:180: target `po/soft-fp.pot' given more than once in the same rule.

The duplicate in $(subdirs) comes from the fact that both
sysdeps/powerpc/Subdirs and sysdeps/sparc/Subdirs contain 'soft-fp'.

Here is a patch to get rid of the warning, by use of the remove-duplicates
function builtin of 'make' (a function actually called 'sort').


2002-05-16  Bruno Haible  <bruno@clisp.org>

	* MakeTAGS (subdirs): Remove duplicates.

--- glibc-20020425/MakeTAGS.bak	Mon Apr 22 13:44:46 2002
+++ glibc-20020425/MakeTAGS	Thu May 16 12:19:50 2002
@@ -62,10 +62,11 @@
 ifndef subdir
 subdirs := $(subdirs) \
 	   $(filter-out $(subdirs),\
-			$(shell sed -e 's/\#.*$$//' \
-				    $(wildcard $(addsuffix /Subdirs,\
-							   $(all-dirs)))\
-				    /dev/null))
+			$(sort \
+			  $(shell sed -e 's/\#.*$$//' \
+				      $(wildcard $(addsuffix /Subdirs,\
+							     $(all-dirs)))\
+				      /dev/null)))
 all-dist = $(foreach Dist,$(wildcard $(all-dirs:%=%/Dist)),\
 		     $(addprefix $(Dist:%/Dist=%)/,\
 				 $(filter %.c %.h %.S %.s,\