Hi Jonas, > Am 26.03.2018 um 13:17 schrieb Jonas Smedegaard <jo...@jones.dk>: > > Quoting H. Nikolaus Schaller (2018-03-26 12:43:56) >> Hi, >> nobody with an idea or knowledge? >> >> BR, >> Nikolaus >> >>> Am 18.03.2018 um 15:37 schrieb H. Nikolaus Schaller <h...@goldelico.com>: >>> >>> Another topic: >>> >>> I am trying to build it on/for wheezy, but ./mkqtspec.sh fails with: >>> >>> dpkg-architecture: error: DEB_TARGET_ARCH is not a supported variable >>> name >>> >>> Jessie reports: >>> >>> root@letux:# dpkg-architecture >>> DEB_BUILD_ARCH=armhf >>> DEB_BUILD_ARCH_BITS=32 >>> DEB_BUILD_ARCH_CPU=arm >>> DEB_BUILD_ARCH_ENDIAN=little >>> DEB_BUILD_ARCH_OS=linux >>> DEB_BUILD_GNU_CPU=arm >>> DEB_BUILD_GNU_SYSTEM=linux-gnueabihf >>> DEB_BUILD_GNU_TYPE=arm-linux-gnueabihf >>> DEB_BUILD_MULTIARCH=arm-linux-gnueabihf >>> DEB_HOST_ARCH=armhf >>> DEB_HOST_ARCH_BITS=32 >>> DEB_HOST_ARCH_CPU=arm >>> DEB_HOST_ARCH_ENDIAN=little >>> DEB_HOST_ARCH_OS=linux >>> DEB_HOST_GNU_CPU=arm >>> DEB_HOST_GNU_SYSTEM=linux-gnueabihf >>> DEB_HOST_GNU_TYPE=arm-linux-gnueabihf >>> DEB_HOST_MULTIARCH=arm-linux-gnueabihf >>> DEB_TARGET_ARCH=armhf >>> DEB_TARGET_ARCH_BITS=32 >>> DEB_TARGET_ARCH_CPU=arm >>> DEB_TARGET_ARCH_ENDIAN=little >>> DEB_TARGET_ARCH_OS=linux >>> DEB_TARGET_GNU_CPU=arm >>> DEB_TARGET_GNU_SYSTEM=linux-gnueabihf >>> DEB_TARGET_GNU_TYPE=arm-linux-gnueabihf >>> DEB_TARGET_MULTIARCH=arm-linux-gnueabihf >>> root@letux:# >>> >>> Wheezy reports: >>> >>> root@letux:/# dpkg-architecture >>> DEB_BUILD_ARCH=armhf >>> DEB_BUILD_ARCH_BITS=32 >>> DEB_BUILD_ARCH_CPU=arm >>> DEB_BUILD_ARCH_ENDIAN=little >>> DEB_BUILD_ARCH_OS=linux >>> DEB_BUILD_GNU_CPU=arm >>> DEB_BUILD_GNU_SYSTEM=linux-gnueabihf >>> DEB_BUILD_GNU_TYPE=arm-linux-gnueabihf >>> DEB_BUILD_MULTIARCH=arm-linux-gnueabihf >>> DEB_HOST_ARCH=armhf >>> DEB_HOST_ARCH_BITS=32 >>> DEB_HOST_ARCH_CPU=arm >>> DEB_HOST_ARCH_ENDIAN=little >>> DEB_HOST_ARCH_OS=linux >>> DEB_HOST_GNU_CPU=arm >>> DEB_HOST_GNU_SYSTEM=linux-gnueabihf >>> DEB_HOST_GNU_TYPE=arm-linux-gnueabihf >>> DEB_HOST_MULTIARCH=arm-linux-gnueabihf >>> root@letux:/# >>> >>> So can we safely replace DEB_TARGET_ARCH by DEB_BUILD_ARCH >>> in DEB_TARGET_ARCH=$(dpkg-architecture -qDEB_TARGET_ARCH) ? > > "man dpkg-architecture" says: > >> DEB_BUILD_ARCH >> The Debian architecture of the build machine.
ok. > > and > >> DEB_TARGET_ARCH >> The Debian architecture of the target machine (since dpkg 1.17.14). ok. So we can use the same since the build is not a cross-build or anything. > > dpkg version in wheezy is too old: > https://packages.debian.org/source/oldoldstable/dpkg Well, for building a package for wheezy it should never be too old... Only some source code could be too new :) > > If build machine is same architecture as target machine, then you can > reuse, else not. So does this mean the following? * use DEB_TARGET_ARCH if defined * fall back to DEB_BUILD_ARCH otherwise I.e. replace it by: DEB_TARGET_ARCH=$(dpkg-architecture -qDEB_TARGET_ARCH 2>/dev/null) [ "$DEB_TARGET_ARCH" ] || DEB_TARGET_ARCH=$(dpkg-architecture -qDEB_BUILD_ARCH BR and thanks, Nikolaus
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