From: Daniel Berger <Daniel.Berger@...>
Date: 2006-04-13T05:55:37+09:00
Subject: Re: Installing on Solaris using sparc-sun-solaris-2.8

Daniel Berger wrote:
> Daniel Berger wrote:
> 
> <snip>
> 
>> Wait a minute - are you building against the latest in CVS?  Because 
>> I'm hitting the same issue because "isinf" isn't linked in properly.  
>> However, if you're building against 1.8.4 stable (release 12-24-2005), 
>> you shouldn't hit this.
>>
>> Is this what you're seeing?
>>
>> gcc -Wall main.o  libruby-static.a -ldl -lcrypt -lm   -o miniruby -g 
>> -O2 -DRUBY_EXPORT
>> Undefined                       first referenced
>>  symbol                             in file
>> isinf                               libruby-static.a(marshal.o)
>> ld: fatal: Symbol referencing errors. No output written to miniruby
>> collect2: ld returned 1 exit status
>> *** Error code 1
>> make: Fatal error: Command failed for target `miniruby'
>>
>> Regards,
>>
>> Dan
> 
> FYI, Matz, or whoever from core is listening, it appears that you need 
> to link in sunmath to get this to work.
> 
> In other news, I don't see sunmath.h anywhere...
> 
> Dan

Further research indicates that sunmath.h is part of the Sun compiler install, 
i.e. under /opt/SUNWspro.  It isn't included with the usual header files under 
/usr/include.

So, you can link against -lsunmath and just ignore the implicit declaration 
warning, or you can define isinf as "!finite" from ieeefp.h on Sun.

Regards,

Dan