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From 8b42b08a1bce2899c0f66ce66ef5fc75745c8f38 Mon Sep 17 00:00:00 2001
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From: Stefan Liebler <stli@linux.vnet.ibm.com>
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Date: Mon, 7 Nov 2016 16:19:30 +0100
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Subject: [PATCH 10/17] S390: Fix build error with gcc6 in utf8_utf16-z9.c.
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upstream commit 808d70228891ab4d4795ab3dd1e015bf63ba18d6
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This patch fixes the build error with gcc6:
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array subscript is above array bounds [-Werror=array-bounds]
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While including loop.c to construct the SINGLE(LOOPFCT) method
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for converting from UTF-16 to UTF-8, the bytebuf array with length
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MAX_NEEDED_INPUT is used as inptr. MAX_NEEDED_INPUT defaults to
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MIN_NEEDED_INPUT if not defined before including loop.c.
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Thus bytebuf has a length of 2.
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This patch defines MAX_NEEDED_INPUT to MAX_NEEDED_TO, which is 4.
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ChangeLog:
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	* sysdeps/s390/s390-64/utf8-utf16-z9.c
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	(MAX_NEEDED_INPUT): New define.
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	(MAX_NEEDED_OUTPUT): New define.
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---
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 sysdeps/s390/s390-64/utf8-utf16-z9.c | 2 ++
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 1 file changed, 2 insertions(+)
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diff --git a/sysdeps/s390/s390-64/utf8-utf16-z9.c b/sysdeps/s390/s390-64/utf8-utf16-z9.c
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index 6dad1c2..590a149 100644
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--- a/sysdeps/s390/s390-64/utf8-utf16-z9.c
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+++ b/sysdeps/s390/s390-64/utf8-utf16-z9.c
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@@ -183,6 +183,7 @@ gconv_end (struct __gconv_step *data)
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 #define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
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 #define MAX_NEEDED_INPUT	MAX_NEEDED_FROM
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 #define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
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+#define MAX_NEEDED_OUTPUT	MAX_NEEDED_TO
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 #define LOOPFCT			FROM_LOOP
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 /* The software implementation is based on the code in gconv_simple.c.  */
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 #define BODY								\
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@@ -340,6 +341,7 @@ gconv_end (struct __gconv_step *data)
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 /* Conversion from UTF-16 to UTF-8.  */
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 #define MIN_NEEDED_INPUT	MIN_NEEDED_TO
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+#define MAX_NEEDED_INPUT	MAX_NEEDED_TO
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 #define MIN_NEEDED_OUTPUT	MIN_NEEDED_FROM
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 #define MAX_NEEDED_OUTPUT	MAX_NEEDED_FROM
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 #define LOOPFCT			TO_LOOP
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-- 
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1.8.3.1
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