llvm dev - Mar 2008 - [LLVMdev] configure testing for linker flags using llvm-gcc

Hi,

I tried to build glibc-2.7 with llvm-gcc4.2.
First problem I hit is that glibc tests for -z relro linker flag support
using this command:
${CC-cc} -v --help 2>&1|grep "z relro"

This test fails for llvm-gcc since it doesn't output linker's --help.

I bypassed this check temporarely by editing configure, but my question
is where does this bug belong to?
Is it an llvm-gcc bug, or is it glibc's configure bug?

FWIW I tried icc, and it doesn't output "z relro" either when
passed "-v
--help".

Best regards,
--Edwin

On Mar 9, 2008, at 10:11 AM, Török Edwin wrote:
> I tried to build glibc-2.7 with llvm-gcc4.2.
> First problem I hit is that glibc tests for -z relro linker flag  
> support
> using this command:
> ${CC-cc} -v --help 2>&1|grep "z relro"
>
> This test fails for llvm-gcc since it doesn't output linker's
--help.
I suspect there is an APPLE LOCAL changes that avoid running ld with -- 
help, as darwin's ld doesn't have that flag.  That code should be  
conditionalized better for darwin.  So, that'd be a llvm-gcc-4.2 bug.