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Date: Fri, 20 Jul 2018 10:50:41 +0200
From: Houder <houder AT xs4all DOT nl>
To: cygwin AT cygwin DOT com
Subject: Re: Symbols _fe_dfl_env and _fe_nomask_env not exported on x86_64
In-Reply-To: <7a7e499a7abcb1ae5f614ee38b4530ec@xs4all.nl>
References: <7a7e499a7abcb1ae5f614ee38b4530ec AT xs4all DOT nl>
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On 2018-07-20 01:00, Houder wrote:
> L.S.,
> 
> This STC fails to compile on Cygwin for x86_64:
> 
> // gcc -Wall -o stc-fenv stc-fenv.c
> // Linux: gcc -Wall -o stc-fenv stc-fenv.c -lm
> #define _GNU_SOURCE
> #include <fenv.h>
> 
> int main()
> {
>     fesetenv(FE_DFL_ENV);
>     fesetenv(FE_NOMASK_ENV);
> }
> 
> 64-@@ gcc -Wall -o stc-fenv stc-fenv.c
> /tmp/cchxZMgV.o:stc-fenv.c:(.rdata$.refptr._fe_nomask_env[.refptr._fe_nomask_env]+0x0):
> undefined reference to `_fe_nomask_env'
> /tmp/cchxZMgV.o:stc-fenv.c:(.rdata$.refptr._fe_dfl_env[.refptr._fe_dfl_env]+0x0):
> undefined reference to `_fe_dfl_env'
> collect2: error: ld returned 1 exit status
> 
> However the STC does compile on x86.
> 
> Where has the machinery gone wrong?

File winsup/CVSChangeLogs.old/cygwin/ChangeLog.64 bit contains: (line 
761 ff)

2013-02-08  Corinna Vinschen  <corinna AT vinschen DOT de>

         * cygwin64.din (BASE): Set to 0x180040000.
         (_fe_dfl_env): Remove useless symbol.
         (_fe_nomask_env): Remove useless symbol.

File cygwin64.din does not exist anymore (as far as I can tell).

Has it been renamed x68_64.din?

Regards,

Henri

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