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Date:	Fri, 20 Jul 2018 14:37:17 +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
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On 2018-07-20 14:01, Corinna Vinschen wrote:
> On Jul 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?
> 
> The symbol export files were not correctly set up back then.  I pushed 
> a
> patch.  New snapshots should be uploaded shortly to
> https://cygwin.com/snapshots/

Thank you, Corinna!

     
https://cygwin.com/git/gitweb.cgi?p=newlib-cygwin.git;a=commit;h=e9f223877f42c31353bd8b522596cb5fe1b87388
     (Cygwin: move FP environment exports to common.din)

Agreed!

(have not tested any snapshot yet; will do.)

Henri

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