[cfe-dev] clang on darwin broken since r212689

Jack Howarth howarth.mailing.lists at gmail.com
Fri Jul 18 13:02:57 PDT 2014


Ismail,
     Unfortunately that doesn't address the actual bug. The problem code is
in

set(out_files)foreach( f ${files} )
  set( src ${CMAKE_CURRENT_SOURCE_DIR}/${f} )
  set( dst ${output_dir}/${f} )
  add_custom_command(OUTPUT ${dst}
    DEPENDS ${src}
    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst}
    COMMENT "Copying clang's ${f}...")
  list(APPEND out_files ${dst})endforeach( f )


of lib/Headers/CMakeLists.txt which fails to create the machine
subdirectory during 'make install'.
The entries for machine/_stdint.h and machine/_types.h in files are reduced
to just _stdint.h and
_types.h when the those files entries are copied. This is the bug that need
to be fixed and not
hacked around.
         Jack


On Fri, Jul 18, 2014 at 1:32 PM, Ismail Pazarbasi <
ismail.pazarbasi at gmail.com> wrote:

> On Fri, Jul 18, 2014 at 5:48 PM, Jack Howarth
> <howarth.mailing.lists at gmail.com> wrote:
> >     I haven't seen this discussed outside of my bug report…
> >
> > http://llvm.org/bugs/show_bug.cgi?id=20326
> >
> > and the later comments on…
> >
> > http://reviews.llvm.org/D3908
> >
> > but the commit of r212689…
> >
> > https://www.mail-archive.com/cfe-commits@cs.uiuc.edu/msg100897.html
> >
> > has broken the darwin targets for clang via blockage of the proper use of
> > the
> > system _stdint.h and _types.h headers by the newly added clang versions.
> > This should be a release blocker for branching 3.5 until it is resolved,
> no?
> > Deleting the installed
> /sw/opt/llvm-3.5.0/lib/clang/3.5.0/include/_stdint.h
> > and
> > /sw/opt/llvm-3.5.0/lib/clang/3.5.0/include/_types.h files eliminates the
> > breakage
> > so perhaps the best solution is not to have those files installed at all
> > outside
> > of the freebsd target.
> > Jack
> >
> > _______________________________________________
> > cfe-dev mailing list
> > cfe-dev at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
> >
>
> Great timing, I was planning to write about this just a few minutes
> ago. I didn't investigate which commit broke it. I have prepared a
> tiny patch that I applied locally. basically, on top of the header
> file:
>
> #if defined(__APPLE__)
> #include_next<_types.h>
> #endif
>
> I guess we can address this issue either with something like my patch
> or by skipping installation on darwin.
>
> _______________________________________________
> cfe-dev mailing list
> cfe-dev at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>
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