From lai at lindaspaces.com  Wed Aug 31 23:59:47 2005
From: lai at lindaspaces.com (Jennifer Lai)
Date: Wed, 31 Aug 2005 17:59:47 -0400
Subject: [Rd] Build Portland Group Compiler
In-Reply-To: <x2oe7d4vux.fsf@turmalin.kubism.ku.dk>
References: <43162119.1010503@lindaspaces.com>
	<x2oe7d4vux.fsf@turmalin.kubism.ku.dk>
Message-ID: <43162853.6070902@lindaspaces.com>

I can't duplicate the error message. After running "configure 
--host=x86_64-unknow-linux-gnu" for the first time, I was able to run 
configure without providing --host argument. Even start with a fresh 
copy of R-devel didn't help me to get the original error. Is the host 
info been cached somewhere in R?

Regards,
Jennifer

Peter Dalgaard wrote:

>Jennifer Lai <lai at lindaspaces.com> writes:
>
>  
>
>>Hi,
>>    I built R with Portland Group compiler, but I noticed one thing that 
>>when I ran configure for the first time on AMD machine, I got the 
>>following error:
>>
>>
>>checking whether the C compiler works... configure: error: cannot run C 
>>compiled programs.
>>If you meant to cross compile, use `--host'.
>>See `config.log' for more details.
>>
>>
>>
>>so I tried to set host=x86_64-unknown-linux-gnu, which seems to work, 
>>except what puzzles me is that there is warning messages indicating C 
>>longs are 4 bytes.
>>
>>*******************************************
>>% configure --host=x86_64-unknown-linux-gnu
>>.
>>.
>>.
>>R is now configured for x86_64-unknown-linux-gnu
>>
>>  Source directory:          .
>>  Installation directory:    /usr/local/R.pgcc
>>
>>  C compiler:                /usr/pgi/linux86-64/6.0/bin/pgcc  -g -O2 
>>-mieee-fp
>>  C++ compiler:              /usr/pgi/linux86-64/6.0/bin/pgCC  -g
>>  Fortran compiler:          /usr/pgi/linux86-64/6.0/bin/pgf77  -O2
>>
>>  Interfaces supported:      X11
>>  External libraries:        readline
>>  Additional capabilities:   PNG, JPEG, MBCS, NLS
>>  Options enabled:           R profiling
>>
>>  Recommended packages:      yes
>>
>>configure: WARNING: assuming C ints are 4 byte on x86_64-unknown-linux-gnu
>>configure: WARNING: assuming C longs are 4 byte on x86_64-unknown-linux-gnu
>>configure: WARNING: you cannot build info or html versions of the R manuals
>>
>>
>>Am I defining a wrong host?
>>    
>>
>
>You're not doing yourself a favour, anyway. 4-byte longs are
>definitely not a good idea on Linux. What is worse, you are building a
>cross-target, which means that configure is not even going to try
>running any compiled programs, not that they work any better than
>before.
>
>The thing to do is to look inside config.log and see what causes
>configure to conclude that you cannot run C compiled programs.
>
>  
>



[Rd] Build Portland Group Compiler
Jennifer Lai