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From: "Pierre Muller" <pierre.muller@ics-cnrs.unistra.fr>
To: "'gdb'" <gdb@sourceware.org>
Subject: Problems with recent GDB Cygwin builds
Date: Fri, 15 Apr 2011 10:34:00 -0000
Message-ID: <002601cbfb58$a52dff20$ef89fd60$@muller@ics-cnrs.unistra.fr>
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Using recent Cygwin builds, either trunk or 7.3 branch,
I do get problems with iconv DLL.

  Typically, all string display fail.

Easiest way to check is 
compile new TRUNK gdb
go to build/gdb dir
prompt# ./gdb ./gdb

...
(top-gdb) print version
$1 =
(top-gdb)

while

prompt# ./gdb ./gdb

...
(top-gdb) p version
$1 = "7.2.90.20110414-cvs"
(top-gdb)

  Trying to debug this, I clearly see that iconv callsdo fail
iconv is a macro and really calls libiconv which is in cygiconv-2.dll
as $eax=-1 on return.

$ cygcheck.exe -s |grep iconv
  980k 2011/01/28 E:\cygwin-1.7\bin\cygiconv-2.dll
libiconv                       1.13.1-2            OK
libiconv2                      1.13.1-2            OK


  The problem seems to be that wchar_iterate returns 2 while
the expected result is 0 or 1.

  Mingw32 or mingw64 seem to work just fine.

Does anyone else have the same kind of troubles?

Pierre Muller.

PS: I tried to compile libiconv-1.13.1-2 but it seems to require me to
install
lots of stuff I don't have ...