posix_spawn issues on i686
Tue Jan 11 10:07:27 GMT 2022
On Jan 10 11:38, Jeremy Drake via Cygwin wrote:
> >From https://github.com/msys2/MSYS2-packages/issues/2801
> MSYS2 recently rebuilt GNU make 4.3, and I found that after rebuilding, it
> broke rather horribly on i686, where any attempt to run a command resulted
> in "Invalid argument" errors. Some debugging revealed that rebuilding
> make resulted in it using posix_spawn now instead of vfork. Passing
> --disable-posix-spawn to make's configure script results in a working i686
> >From the MSYS2 bug report:
> For reference, I tried to rebuild "make" in cygwin 32 bit and it has the
> same problem:
> rebuilding cygport make.cygport all results in a broken make
> Adding CYGCONF_ARGS="--disable-posix-spawn" to the cygport file and
> rebuilding again results in a good make
> A Makefile to reproduce the issue:
> echo hi
> In addition, make check fails rather horribly as well.
> I know that 32-bit is on the way out, but it is concerning to me that
> there is some latent bug lurking in this code path that is apparently not
> well exercised.
Can you create a simple, self-contained testcase in plain C?
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