Re: [Tinycc-devel] Self hosting issues with tcc 0.9.27

[Ziyao]

On 2023-03-15 21:27, avih via Tinycc-devel wrote:
> 1. On Ubuntu 64 22.04 LTS (gcc 11.3), tcc 0.9.27 does not build.
>
> git clean -xfd
> git checkout release_0_9_27
> ./configure --prefix=$PWD/../tcc0927
> make
>
> # ends with this error:
>
> ../tcc -c bcheck.c -o bcheck.o -B..
> bcheck.c:738: error: '__malloc_hook' undeclared
> make[1]: *** [Makefile:64: bcheck.o] Error 1

As described a few days ago, Glibc has deprecated __malloc_hook since
2.32.

> Conclusions:
>
> - This is not ideal. It's hard to build 0.9.27 these days, and
>   even once built, it fails some tests, and ignoring that, it can
>   build current mob but some tests fail.
>
> - Luckily, using this last "broken tests mob" build it is possible
>   to build mob-proper with all tests passing.
>
> What might be be ideal, IMVHO, is:
>
> - A new release 0.9.27.1 with minimal diff from 0.9.27, which:
>   - Could be built with modern compilers and pass (enabled) tests.
>   - Preferably can be built and pass tests with tcc 0.9.26 too.
>     - Or at least have a documented path to build from 0.9.26.
>   - E.g. maybe just disable bcheck and asm-c-connect-test.
>
> - That mob is modified to allow to be built and pass (Enabled) tests
>   using a newly built tcc 0.9.27[.1]. This could be tricky, as
>   I think it would have to be detected in configure tests or options,
>   because tcc version has not changed for years, so hard to test...
>   - maybe add a configure option --with-tcc-0-9-27 or some such.
>
> - Finally, a new release (0.9.28 or 1.0, which can be built and
>   pass tests using 0.9.27[.1]), because it's been years, and
>   to serve as a new baseline to build future tcc versions.

There used to be a plan for a new release, but it has NOT made any
progress. It is true that 0.9.27 is too old, so always sticking to
mob may be a wise option...

--
Ziyao