Re: [PATCH] polystrap-binfmt for preparing the build host

Hi,

On Wed, Jun 29, 2011 at 10:07:17AM +0000, Hector Oron wrote:
> Just a proof of concept....
> 
> $ ./PoC.sh
> I: Set dpkg-architecture cross architecture: armel
> I: configure --build=x86_64-linux-gnu --host=arm-linux-gnueabi
> I: Debian armel maps to GNU arm architecture
> I: Unset dpkg-architecture cross architecture
> I: For further instructions: man dpkg-architecture
> 
> $ cat PoC.sh
> #! /bin/sh
> 
> ARCH=armel
> 
> echo "I: Set dpkg-architecture cross architecture: ${ARCH}"
> eval $(dpkg-architecture -a${ARCH} -s 2> /dev/null)
> 
> DEB_BUILD_GNU_TYPE=$(dpkg-architecture -qDEB_BUILD_GNU_TYPE)
> DEB_HOST_GNU_TYPE=$(dpkg-architecture -qDEB_HOST_GNU_TYPE)
> DEB_HOST_ARCH_CPU=$(dpkg-architecture -qDEB_HOST_ARCH_CPU)
> 
> echo "I: configure --build=${DEB_BUILD_GNU_TYPE} --host=${DEB_HOST_GNU_TYPE}"
> echo "I: Debian ${ARCH} maps to GNU ${DEB_HOST_ARCH_CPU} architecture"
> 
> echo "I: Unset dpkg-architecture cross architecture"
> eval $(dpkg-architecture -u 2> /dev/null)
> 
> echo "I: For further instructions: man dpkg-architecture"
> exit 0
ah I totally misread the meaning of the dpkg-architecture "-a" option.

indeed that works for some debian architectures but for example for
ARCH=powerpc, QEMUARCH should be ppc but dpkg-architectures only prints
powerpc for the DEB_HOST_ARCH_CPU.

cheers, josch