On 12/19/08 11:21 AM, George Vasick wrote:
> Byron Servies wrote:
>> On 12/17/08 04:15 PM, Raj Prakash wrote:
>>
>>>
>>> 4. Technical Description:
>>> 4.1. Details:
>>> - Existing GCC 3.4.3, GNU Runtime 3.4.3, and GNU Binutils 2.15 will
>>> remain unchanged in /usr/sfw/.
>>> - The latest community versions, GCC 4.3.2, GNU Runtime 4.3.2, and
>>> GNU Binutils 2.19, will be ported to OpenSolaris and installed
>>> in /usr/compilers/gcc432.
>>> - Softlinks to commands in /usr/bin, e.g. /usr/bin/gcc, will be
>>> created point to /usr/compilers/gcc432/bin.
>>> - Softlinks to commands in /usr/gnu/bin, e.g. /usr/gnu/bin/cc, will
>>> be created pointing to /usr/compilers/gcc432/bin.
>>> - Libraries in /usr/compilers/gcc432/lib and
>>> /usr/compilers/gcc432/lib/{MACH64}
>>> will be linked into /usr/lib and /usr/lib/{MACH64}.
>>
>> So you are proposing to have the program referenced by 2 different
>> names in 3 different places?
>>
>> Could you not at least make "gcc" be "gcc" everwhere (and prefix all
>> the other commands with "g") to make it impossible to confuse them
>> with the Sun variants? This is both common practice, and all the
>> packages provide for this via the "--program-prefix" option.
>
> We are following the convention already established in OpenSolaris with
> gcc 3.4.3:
>
> ls -l /usr/gnu/bin/cc /usr/bin/gcc /usr/sfw/bin/gcc
> lrwxrwxrwx 1 root root 14 2008-12-11 12:56 /usr/bin/gcc ->
> ../sfw/bin/gcc*
> lrwxrwxrwx 1 root root 17 2008-12-11 12:56 /usr/gnu/bin/cc ->
> ../../sfw/bin/gcc*
> -r-xr-xr-x 3 root bin 88320 2008-12-11 12:56 /usr/sfw/bin/gcc*
>
Just because it has been done doesn't make it a good idea. Having all
the different names and links makes upgrades hard and consistency moot.
Pick a location. Pick a name.
> I also see a similar pattern on Ubuntu Linux where both cc and gcc are
> links to a gcc command with a suffix, e.g. gcc-4.3.
On Ubuntu, gcc is the only possible compiler. Having conflicting
options, etc., is not a possibility. On Solaris, the Sun compiler will
be the 'cc' command (and the make command), and it is not compatible
with gcc.
Byron
--
Byron Servies
Sun Microsystems, Inc.
1 (831) 621-9807 / x81182 voice
1 (831) 621-9807 fax
mail to: byron.servies at sun.com
http://www.sun.com
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