[Regression on stable] RLS doesn't seem to exist for x86_64-pc-windows-gnu anymore

[CryZe]

Multiple people have encountered this by now, but no nightly seems to ever have the RLS component available for the nightly-x86_64-pc-windows-gnu toolchain, while the same nightlies seem to have it available for the msvc toolchain.

[Jimmio92]

I suspect this is caused by a problem in racer that prevents racer from being built, and I think this project depends upon racer, so this makes sense. I don't know anything about these projects unfortunately, or I'd be working on fixing it.

[CryZe]

It is now gone for stable too.

[willem66745]

I guess it is missing since it is not building in the windows-gnu environment for a while. Most likely due to rust-mingw component which is not fool proof any longer with more recent mingw installs.

I observed the issue also for a while. Back then it seems Racer (racer-rust/racer#919), but apparently it is solved. I still observed the issue when building RLS.

I created a very dirty workaround based on https://stackoverflow.com/questions/30412951

I changed in my build environment /mingw64/x86_64-w64-mingw32/include/stdio.h:

#define stdin  (__acrt_iob_func(0))
#define stdout (__acrt_iob_func(1))
#define stderr (__acrt_iob_func(2))

Into

#define stdin  (&__iob_func()[0])
#define stdout (&__iob_func()[1])
#define stderr (&__iob_func()[2])

This change results in a working RLS for me with today's nightlies. Hopefully it can give some pointers to address this issue.

[Xanewok]

@CryZe do you happen to know if the newest stable has the appropriate components? IIRC we fixed that and started shipping it but I may be wrong.

[Xanewok]

I'll close this as dup of #1189, please reopen if stable also doesn't have the rls component.