Clang on SL5

Clang Frontend
#1

Hi,

I just want to confirm if there is any known issue about using clang on SL5. Specially regarding the headers.

Thanks,

Miguel

#2

http://stackoverflow.com/questions/7276828/

libc is buggy, clang stage 2 fails to build. This issue is fixed in SL6.

Dmitri

#3

Dimitri,

Is the libc buggy in sl5 itself or the interaction with clang?

By stage two do you mean preprocesing?

Thanks,

Miguel

#4

Is the libc buggy in sl5 itself or the interaction with clang?

libc expects different semantics from some C constructs. System gcc
implements them as expected by libc, so it was unnoticed.

By stage two do you mean preprocesing?

By stage 2 I mean second stage during bootstrap.

Dmitri

#5

Hi Miguel,

I just want to confirm if there is any known issue about using clang on SL5. Specially regarding the headers.

I assume that SL5 is Scientific Linux 5, compatible with RHEL/CentOS 5

We're using clang 3.2 on CentOS 5, it builds fine with stock GCC 4.1.2, and is able to build itself after adding '-fgnu89-inline' to CFLAGS

However, we had to build GDB 7.5.1 to debug clang-compiled binaries, stock one gives the following error:

Dwarf Error: Cannot handle DW_FORM_flag_present in DWARF reader

Hope this helps.