Re: Once more cross compilation

[Nicola Pero]

On Sun, 25 Jul 2004, Fred Kiefer wrote:

> Nicola Pero wrote:
> >>>>What if I compile gnustep-make with HOST=x86, TARGET=arm and try to
> >>>>crosscompile another package with it. Then I should compile the other
> >>>>package with HOST=arm. Does this conflict with the usage of this variable
> >>>>in gnustep-make?
> >>>
> >>>(this question is about compiling a crosscompiler using a crosscompiling
> >>>gnustep-make)
> >>
> >>No it isn't. There was no TARGET involved in the compilation of the other
> >>package. The question is the same if you crosscompile any package (say
> >>GNUMail which has no TARGET) with a crosscompiling gnustep-make.
> > 
> > 
> > Then I didn't understand the question - apologies.
> > 
> > If you compile gnustep-make with HOST=local-system and TARGET=xxx, and you
> > want to use the resulting gnustep-make to compile a package which you want
> > to run on xxx, you just have to type
> > 
> > make target=xxx
> > 
> > when you compile.
> > 
> 
> I started following your instruction for crosscompilation and get the 
> same warning messages that hinted to me originally to do it differently:
> 
> Typing in:
> 
> ./configure --prefix=/home/zaurus/gnustep --disable-flattened 
> --host=ix86-linux --target=arm-linux 
> --libdir=/home/zaurus/gnustep/System/Library/Libraries/arm/linux-gnu 
> --includedir=/home/zaurus/gnustep/System/Library/Headers/gnu-gnu-gnu
> 
> 
> Results in:
> 
> configure: WARNING: If you wanted to set the --build type, don't use --host.
>      If a cross compiler is detected then cross compile mode will be used.
> checking for ix86-linux-gcc... no
> checking for gcc... gcc
> checking for C compiler default output... a.out
> checking whether the C compiler works... yes
> checking whether we are cross compiling... no

>From the autoconf manual - 

"For historical reasons, passing `--host' also changes the build type.  
Therefore, whenever you specify --host, be sure to specify --build too.  
This will be fixed in the future."

So you have to use

--build=ix86-linux --host=ix86-linux --target=arm-linux

Not sure that will work yet :-) but it's a step in the right direction