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Re: Report: compil error on OSX for target=i386

From: Yves Blusseau
Subject: Re: Report: compil error on OSX for target=i386
Date: Sat, 5 Sep 2009 13:47:52 +0200

Le 4 sept. 09 à 13:48, Robert Millan a écrit :

On Thu, Sep 03, 2009 at 11:01:23PM +0200, Yves Blusseau wrote:

It's much easier to make official GCC a build requirement.  People
on GRUB source, or distributors (e.g. Fink) should have no problem
with a
dependency on GCC.

So what you can do because currently we can't compil grub on OSX:

gcc-4.2 -Iloader/i386 -I./loader/i386 -I. -I./include -I./include - Wall
-W  -Wall -W -Wshadow -Wpointer-arith -Wmissing-prototypes
 -Wundef -Wstrict-prototypes -g -Os -falign-jumps=1 -falign-loops=1
-falign-functions=1 -DAPPLE_CC=1 -fnested-functions -m32
-fno-stack-protector -mno-stack-arg-probe -fno-builtin -mrtd - mregparm=3
-m32 -MD -c -o linux_mod-loader_i386_linux.o loader/i386/linux.c
loader/i386/linux.c: In function ‘grub_linux_boot’:
loader/i386/linux.c:546: error: can't find a register in class ‘BREG’
while reloading ‘asm’
loader/i386/linux.c:542: error: ‘asm’ operand has impossible constraints loader/i386/linux.c:543: error: ‘asm’ operand has impossible constraints loader/i386/linux.c:546: error: ‘asm’ operand has impossible constraints
make: *** [linux_mod-loader_i386_linux.o] Error 1

I assume you installed Apple's version of GCC. Can you try with an official
GCC release?

Yes, i have compiled on a true mac (Leopard 10.5.7) with the gcc-4.2.1 version.

I have tried to compil with a mac port of gcc 4.4 but configure report an error (about the linker):

checking whether target compiler is working... no
configure: error: cannot compile for the target

and if i look into the config.log it's because it use the default apple linker tool witch don't recognize some arguments:

configure:5882: gcc-mp-4.4 -o conftest -Wall -W -Wshadow -Wpointer- arith -Wmissing-prototypes -Wundef -Wstrict-prototypes -g -Os -falign- jumps=1 -falign-loops=1 -falign-functions=1 -fno-dwarf2-cfi-asm -m32 - fno-stack-protector -mno-stack-arg-probe -nostdlib -Wl,-- defsym,___main=0x8100 -m32 conftest.c >&5
ld: unknown option: --defsym
collect2: ld returned 1 exit status

Yves Blusseau

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