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To: cygwin@cygwin.com
Subject: Re: libgccjit
Date: Sun, 14 Mar 2021 19:06:01 +0000
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From: Andy Moreton via Cygwin <cygwin@cygwin.com>
Reply-To: Andy Moreton <andrewjmoreton@gmail.com>
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On Sun 14 Mar 2021, Achim Gratz wrote:

> Jonathan Yong via Cygwin writes:
>> Thanks for trying.
>> Does injecting dlfcn.h work?
>
> The include is not used because it is tied to --enable-plugins.  Plugins
> do not work because the configury determines that shared objects do not
> work.  If I manually force the inclusion some other stuff goes missing
> apparently, but let me try to re-start the build from the beginning with
> the patch already applied… well, it stops at the same problem again:
>
> make[3]: *** No rule to make target 'xgcc', needed by 'x86_64-pc-cygwin-gcc-10.exe'.  Stop.
>
> But really, the first steps would apparently be to make --enable-plugins
> do something sane on Cygwin (there seems to have been work on this for
> MingW64, but it doesn't look like there are patches anywhere I can
> find).

The build scripts for Mingw64 in the MSYS2 distro are here:

  https://github.com/msys2/MINGW-packages/tree/master/mingw-w64-gcc

The PKGBUILD file is the build script (same tooling as Arch linux), and
the local patches there may help guide similar fixes for Cygwin.

    AndyM

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