[fpc-devel] Proposal to adapt search patch under Haiku using a target specific option (-WH).

[Olivier Coursière]

Hi Pierre,

> if you want, I can integrate those changes into trunk for you.
Thank you for the offer but i should have some free time in the next two 
days. I should already have the change in a 3.0.4 branch. It should be 
easy to port to trunk i think. A proper patch would be easier to commit.
>   Did you already start working on other CPU support for Haiku?

Not really. I have investigated what need to be done for x86-64 port but 
the assembly part (cprt0.as) was enough to dissuade me so far ;-) Other 
CPUs will require a working kernel first ;-) Help is welcome though, on 
both sides...

Here is the current state : 
https://www.haiku-os.org/guides/building/port_status/.

>   Do you have any compile-farm similar to gcc-farm?
Not yet as far as i know. We have machines to build our packages when 
new recipe arrive, but no tests machines i think.
>   It would be nice to also get regular testsuite results for Haiku OS!
Indeed... We now have a working virtio driver and vagrant support. Maybe 
i will experiment on automating something in a virtual machine on my 
desktop machine as a first step.
> Have a nice new year celebration!
Happy new year !

Olivier

> PS: I don't remember if you speak French,
> but, just in case,
> Bonne et heureuse année

Yes, french is my native language ;-)

Bonne année, bonne santé ! ;-)

> else
> Happy New Year!
>
>
>
> Le 30/12/2018 à 14:58, Olivier Coursière via fpc-devel a écrit :
>> Some background :
>>
>> Haiku currently supports two compilers toolchains with two sets of
>> libraries and ABI for its 32 bits flavor :
>>    - gcc 2 for BeOS compatibility
>>    - gcc 4 (or above : currently 7.3) for newer libraries like Qt (and
>> Lazarus).
>>
>> The default gcc toolchain can be changed using a command line : setarch
>> currently accepting x86_gcc2 or x86.
>> Once this is done, the only practical difference from Freepascal point
>> of view is that the search patch should be adapted to use the rights
>> libraries according to the context.
>>
>> A few years ago, i have open the bug 26486
>> (https://bugs.freepascal.org/view.php?id=26486) with a first proposal
>> that was too hacky to be committed. Since then, i have made another
>> proposition involving a new command line switch to let specifying the
>> set of search paths when targeting gcc4. This alternative proposal got
>> unnoticed since then.
>>
>> I am currently looking at packaging Lazarus for Haiku and it would
>> simplify the process a lot in our Haikuports system (our equivalent of
>> Ports in FreeBSD).
>>
>> So here is the proposal :
>>
>> I propose to add a -WH option that can accept a "gcc4" parameter to
>> specify the alternative option. This is similar to others -W options
>> used to specify the kind of applications on the same platform (like -WA
>> or -WG for Windows).
>> It would simplify lazarus building under Haiku using a command like that :
>>
>> make LCL_PLATFORM=qt OPT="-WHgcc4"
>>
>> Do you think that kind of options could be upstreamed ? If so, i can
>> update the patch to match current sources and maybe use the same option
>> names as setarch to specify the platform.
>>
>> If not, i can still patch freepascal sources before packaging freepascal
>> for Haiku through our haikuports system. But it would be, in my opinion,
>> less practical on the long term.
>>
>> Or maybe someone will come up with a better idea to handle that kind of
>> problems ?
>>
>> What do you think about this proposal ?
>>
>> _______________________________________________
>> fpc-devel maillist  -  fpc-devel at lists.freepascal.org
>> http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
>>
> _______________________________________________
> fpc-devel maillist  -  fpc-devel at lists.freepascal.org
> http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel