[R-SIG-Mac] vecLib and building R from source

[stefano iacus]

On 02/set/05, at 01:13, Kjell Konis wrote:


> On 31 Aug 2005, at 20:33, Simon Urbanek wrote:
>
>
>>
>> On Aug 31, 2005, at 9:54 PM, Kjell Konis wrote:
>>
>>
>>
>>> On 31 Aug 2005, at 18:21, Simon Urbanek wrote:
>>>
>>> Here is my environment:
>>> CPPFLAGS="-I/Volumes/muffin/DarwinPorts/include"
>>> LDFLAGS="-L/Volumes/muffin/DarwinPorts/lib"
>>> F77=g77-dp-3.4
>>> CC=gcc-dp-3.4
>>>
>>>
>>>
>>
>> What is that?!? That's not an Apple compiler and it's broken as you
>> can see from the config.log:
>>
>>
>
> It's the GNU C compiler version 3.3.4.
>
>
>
>> configure:32439: gcc-dp-3.4 -o conftest -g -O2  -I/Volumes/muffin/
>> DarwinPorts/include -L/Volumes/muffin/DarwinPorts/lib conftest.c -
>> framework vecLib  -lg2c -lgcc_s -lSystemStubs -lSystem -lcc_dynamic
>> -lm  >&5
>> gcc-dp-3.4: vecLib: No such file or directory
>> cc1: error: unrecognized command line option "-framework"
>>
>>
>
> This just means it doesn't support -framework.  This is actually the
> answer to my original question.  Apparently -framework is supported
> in stock gcc 4.x.
>

mmh, gcc 3.3.x from Apple supports -framework and it is documented in  
the gcc man pages. (If I remember well, this is also supported on  
some Win32 version of gcc)



>
>
>
>> You should definitely use Apple's compiler, stock GNU gcc is NOT
>> the same as Apple, because there are many features that Apple folks
>> have added. You should check out the Apple branch from GNU.
>>
>>
>
> It might not be such a good idea to be too dependent on Apple's gcc.
> There are compilers from IBM and Intel that people may at some time
> be interested in using.
>

in this case, you need to bypass configure by specifying --with- 
blas=path_to_your_blas_lib
  so gcc won't try to use the -framework flag.
This is of course the same you do on other unices.
You should also want to remove from the configure flags the options  
to build R as a framework and just set --enable-shlib

In the end, given that you are using gcc-dp (darwin ports?) you  
should also run make check after building R to assess the reliability  
of your build.

Please, let us know your progresses here, we can put notes on the R  
for OS X FAQ.
I understand your idea of a "pure" darwin (i.e.not necessarily aqua &  
core foundation based) build, but I strongly believe that a "out-of- 
the-box" configure and build on OS X must rely on apple's tools as  
well on open source tools as much as possible (and IBM compilers  
aren't for free at the moment)

stefano


>
>
> Kjell
>
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