Hi Helmut! On Fri, Oct 30, 2020 at 08:20:19PM +0100, Helmut Grohne wrote: > Source: qtbase-opensource-src > Version: 5.15.1+dfsg-2 > Tags: patch upstream > User: debian-cr...@lists.debian.org > Usertags: ftcbfs > > qtbase-opensource-src still fails to cross build. When you attempt to > cross build it for ppc64el it fails quite early, because it lacks > mkspecs. For some reason, qt needs these for every single architecture > even though they could be generated automatically. I'm attaching the > patch for ppc64el based on the relevant arm64 files, but I do wonder > whether this could be solved generically somehow. Any ideas?
Using a separate mkspec for every possible architecture is the upstream approach for cross-building. In Debian I was trying to use a different approach for cross-compiling Qt applications and modules (except qtbase): using a generic mkspec (linux-g++) and specifying the toolchain in a qt.conf file. Ideally a similar thing should be used for qtbase. The configure script does not seem to support passing qt.conf file, but one can pass variables like QMAKE_CXX=... etc to it. (Unfortunately I don't have time to look at it now.) -- Dmitry Shachnev
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