[PATCH] libc: Replace i386/sys/fenv.h symlink with an #include shim
Tue Mar 23 14:38:57 GMT 2021
On Mar 13 19:11, David Macek via Newlib wrote:
> > > More to the point, how big of an issue would be to duplicate the file?
> > I'm not hot on duplicating an identical file, it just raises maintenance
> > cost. I'm currently looking into a solution to share the file without
> > duplicating it.
> Something like a Makefile rule?
A bit more complicated in fact. I added a new topic branch called
topic/shared_arch_headers to the upstream repo, containing a single
a8cd2849ed0c Add build mechanism to share common header files between
This patch introduces a new way to share header files between
architectures, not share by other architectures.
I tried to change this in a generic way. The fenv stuff in this patch
is basically just the first user of this new mechanism.
As a side-effect, this also allows to remove Cygwin's own fenv code
finally, which was already pretty much the same as newlib's x86 code
anyway. The major exception was the call to _feinitialise in Cygwin DLL
startup. Given that the newlib fenv code is auto-initializing, this can
go away. Cygwin just has to keep the _feinitialise entry point for
backward compatibility for apps built in a certain time frame.
David, Joel, anybody else interested in this stuff, please inspect
this patch on the topic/shared_arch_headers branch thorougly. I will
not push this quickly, since we're in the process of releasing Cygwin
3.2.0. I don't want to destabilise the release without need :)
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