[llvm-dev] build issue in llvm-clang cross tool chain for arm target

[Renato Golin via llvm-dev]

On 6 May 2016 at 18:28, Balasaheb Dabhade via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> -DLLVM_TARGETS_TO_BUILD=ARM -DCMAKE_CXX_FLAGS='-target
> armv7a-linux-gnueabihf -mcpu=cortex-a9
> -I/usr/arm-linux-gnueabihf/include/c++/4.7.3/arm-linux-gnueabihf/
> -I/usr/arm-linux-gnueabihf/include/ -mfloat-abi=hard -ccc-gcc-name
> arm-linux-gnueabihf-gcc'

I can think of two things:

1. You're using a triple that is different from your gcc name:

'-target armv7a-linux-gnueabihf'

vs

'-ccc-gcc-name arm-linux-gnueabihf-gcc'

You should use the target as "arm-linux-gnueabihf".

2. You're not including the GCC headers or libraries.

You need to find where GCC keeps its libraries (normally
/usr/lib/gcc/arm-linux-gnueabihf) and headers (if necessary).

In your case, just adding -L"where your gcc libs are" should be enough.

cheers,
--renato