fix building of iconvdata in funky locales

[Mike Frysinger <vapier at gentoo dot org>]

some locales (like tr_TR.UTF-8) do not map upper/lower the same way as the C 
locale.  this breaks iconv-rules generation as it uses upper/lower funcs in an 
awk script.

2008-12-29  Mike Frysinger  <vapier@gentoo.org>

	* iconvdata/Makefile (iconv-rules): Use LC_ALL=C when running awk script.

--- a/iconvdata/Makefile
+++ b/iconvdata/Makefile
@@ -286,7 +286,7 @@ $(objpfx)iconv-rules: Makefile
 	{ echo $(filter-out lib%, $(modules)); \
 	  echo 8bit $(gen-8bit-modules); \
 	  echo 8bit-gap $(gen-8bit-gap-modules); } | \
-	$(AWK) 'NR == 1 { \
+	LC_ALL=C $(AWK) 'NR == 1 { \
 		  for (i = 1; i <= NF; i++) { \
 		    printf "%s-routines := %s\n", $$i, tolower($$i); \
 		    printf "%s-map := gconv.map\n", $$i; \
-mike

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