multiple definition of `atan2l' on the current Cygwin

Tatsuro MATSUOKA tmacchant2@yahoo.co.jp
Mon Apr 18 23:33:00 GMT 2016


> From: Tatsuro MATSUOKA
> To: cygwin
           > Cc: 
> Date: 2016/4/17, Sun 14:15
> Subject: Re: multiple definition of `atan2l' on the current Cygwin
> 
>>  I have confirmed the mutiple definition error does not occur on gnuplot 
> build 
>>  with 
>>  gcc-5.3.0-4 today.
>>  Thanks!
>>  Tatsuro
> 
> The above is for Cygwin X86.
> Cygwin 64 still has problem
> // m.cc
> #include <cstdio> 
> #include <cmath> 
> 
> int main() 
> { 
>   long double x, y; 
>   scanf("%Lf %Lf", &x, &y); 
>   printf("%Lf\n", atan2l(x,y)); 
>   return 0; 
>> //m.cc
> LANG=C g++ m.cc -lm
> /usr/lib/gcc/x86_64-pc-cygwin/5.3.0/libstdc++.dll.a(d005836.o):(.text+0x0): 
> multiple definition of `atan2l'
> /usr/lib/../lib/libm.a(t-d000195.o):fake:(.text+0x0): first defined here
> collect2: error: ld returned 1 exit status
> Tatsuro

gcc-5.3.0 for x86 has been updated to gcc-5.3.0-5
http://cygwin.1069669.n5.nabble.com/Updated-gcc-5-3-0-5-x64-td126377.html  
I confirmed this update resolve this issue.
Thanks!
Tatsuro  

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple



More information about the Cygwin mailing list