Re: [Tinycc-devel] What is the exact Darwin port status? (i.e. macOS)

[Christian Jullien]

Hello Michael,

That's clear now. IMHO, the best thing to do is to refuse to build tcc on
systems that are not explicitly supported.

$ ./configure
** Error, tcc is not supported on this system.
$

-----Original Message-----
From: Tinycc-devel [mailto:address@hidden
On Behalf Of Michael Matz
Sent: lundi 27 février 2017 01:05
To: address@hidden
Subject: Re: [Tinycc-devel] What is the exact Darwin port status? (i.e.
macOS)

Hi,

On Sun, 26 Feb 2017, Christian Jullien wrote:

> I start to better understand (fix me if I'm wrong).
> * On Darwin I can only make a cross compiler, i.e. make for example a 
> tcc compiler that, when built, will run on Windows.

Yes.  But of course for a really working cross compiler you'd also need the
target libraries and headers.

> * On Darwin, 'make' alone is not supposed to produce something usable 
> to any purpose. IMHO, make should produce an error in this case.

Probably.

> * Btw, why are there some __APPLE__ in tccrun.c

A tiny attempt to make it even compile on os-x at all.  Native support for
Darwin would be a larger undertaking as you need to work with the native
object file format, for libraries at least reading (either directly or via
intermediate means like Windows import .def files) and for generated
executables/libraries writing.  That object file format is Mach-O and
different from ELF or (PE)COFF.

As long as the latter doesn't exist you'd only be able to generate programs
in memory (i.e. -run) and even then only programs that are completely
self-contained and need no external libraries at all, not even the C
library.  And due to that even -run is most probably broken.


Ciao,
Michael.

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