[cfe-dev] FW: errors building clang on Ubuntu 12.04

[Nathan Ridge]

> >> > I'm trying to build clang 3.2 on Ubuntu 12.04 (32-bit), but I'm getting
> >> > the
> >> > following compiler error well into the build process:
> >> >
> >> > In file included from
> >> >
> >> > /home/nr/builds/llvm-3.2-src/projects/compiler-rt/lib/enable_execute_stack.c:13:
> >> > /usr/include/i386-linux-gnu/sys/mman.h:23:10: fatal error: 'features.h'
> >> > file not found
> >> > #include <features.h>
> >> > ^
> >> >
> >> > I am compiling clang with GCC 4.7.2, and configuring it as follows:
> >> >
> >> > ../llvm-3.2-src/configure --enable-optimized
> >> > --with-gcc-toolchain=/home/nr/programs/gcc/gcc-4.7.2
> >> > --prefix=/home/nr/programs/clang/clang-3.2
> >> >
> >> > What am I doing wrong?
> >> >
> >>
> >> On my Ubuntu box it's in /usr/include. It came with libc6-dev:
> >>
> >> $ dpkg -S /usr/include/features.h
> >> libc6-dev: /usr/include/features.h
> >
> > I have a features.h in /usr/include, but I'm still getting the error...
> 
> I think this is because of --with-gcc-toolchain.  Can you try omitting
> that and building with the default system compiler?

I tried that, I built it with the default system compiler which is gcc 4.6.3.
However, I am still getting the same error.

Any other ideas?

Thanks,
Nate

 		 	   		  
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