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Date: Sun, 14 Oct 2012 15:38:36 +0200
From: Luca Barbato <lu_zero@...too.org>
To: musl@...ts.openwall.com
Subject: Re: shared musl with PCC as system compiler

On 10/14/2012 09:15 AM, Isaac Dunham wrote:
> This is mainly a mix of what I've worked out previously and what Rich and I worked
> out on IRC. I figured posting it on the list would help those who want to use pcc
> as compiler...
> 0. Get today's (Oct 13) git HEAD or later! Otherwise libc.so will be broken.
> Get a fairly recent pcc from CVS (the last month should be good enough)
> When compiling pcc-libs, use 
> make CFLAGS="-fPIC ${OPTFLAGS}"
> (otherwise you get textrels in libc.so, which doesn't work)
> 1. Set LIBCC to -L$(dirname `pcc -print-file-name=libpcc.a`) -lpcc 
> #-lpccsoftfloat may be needed for some systems
> 2. Add 
> CFLAGS_ALL_SHARED += -D__PIC__=1
> to config.mak (pcc doesn't define this with -fPIC at present, which is a bug)
> 3. Find the right -m* options:
> ld -march=native 
> #look for the elf_* in the "Supported emulations" that matches your CPU
> Change all occurences of -m* in config.mak to "-melf_<arch>"
> (pcc doesn't parse -m*, which is at best an incompatible behavior)
> 4. Now you should be set to compile.

Do you have/know of a git mirror for pcc?

lu

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