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Re: glibc-2.2{8,9} multiarch build failure on x86_64 with gcc 9
On Wed, May 01, 2019 at 02:36:10PM -0400, Carlos O'Donell wrote:
> On 5/1/19 2:24 PM, Arvind Sankar wrote:
> > gcc 9 when configured for fortran installs ISO_Fortran_Binding.h in
> > gfor_cdir = $(libdir)/gcc/$(target_alias)/$(gcc_version)$(MULTISUBDIR)/include
> > For x86_64's 32-bit architecture support, this creates a subdirectory named 'include'
> > inside $(libsubdir)/32 which didn't use to exist in gcc 8.
> This doesn't seem correct.
>
> I would have expected the header to exist under the target name, for example:
>
> /usr/lib/gcc/i686-redhat-linux/9/include/ISO_Fortran_binding.h
>
> This way it doesn't conflict with other uses.
>
> Perhaps there is enough variability in the way you build, package, and install this
> that it can break in some configurations.
>
> I think the gcc community needs to comment on this.
>
> --
> Cheers,
> Carlos.
To be clear, it does exist there as well (I think because the native arch has an
empty MULTISUBDIR. The breakage happens because it _also_ exists under .../9/32/include.