[PATCH] Fix a regression bug included by commit e64d2de52.

[Tulio Magno Quites Machado Filho]

Commit e64d2de52 included a bug when converting from TCVN-5712 to UTF8.
This fixes the bug by properly checking for the end of input strings when
converting from TCVN-5712 to UCS4.
I've verified that this commit passes the same make check tests that used
to pass before e64d2de52 on x86-64.

2012-04-02 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>

	[BZ #13691]
	* iconvdata/tcvn5712-1.c (FROM_LOOP): Fix a bug when converting
	strings	ended by characters between 0x0041 and 0x01b0. Also, fix a
	regression bug inserted by commit e64d2de52.
---
 iconvdata/tcvn5712-1.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/iconvdata/tcvn5712-1.c b/iconvdata/tcvn5712-1.c
index 09dcbbf..4ec8410 100644
--- a/iconvdata/tcvn5712-1.c
+++ b/iconvdata/tcvn5712-1.c
@@ -378,8 +378,9 @@ static const struct
     /* Determine whether there is a buffered character pending.  */	      \
     last_ch = *statep >> 3;						      \
 									      \
-    /* We have to buffer ch if it is a possible match in comp_table_data.  */ \
-    must_buffer_ch = last_ch && (ch >= 0x0041 && ch <= 0x01b0);		      \
+    /* We have to buffer ch if it is a possible match in comp_table_data  */  \
+    /* and if it isn't the last char of the string.  */			      \
+    must_buffer_ch = (ch >= 0x0041 && ch <= 0x01b0) && (inptr+1 != inend);    \
 									      \
     if (last_ch)							      \
       {									      \
-- 
1.7.4.4