I'd say that the simplest is to spin up a 32-bit docker image corresponding to your OS and do the build on it.
------- Jean-Michaël Celerier http://www.jcelerier.name On Sat, Aug 26, 2017 at 10:03 AM, Christian Gagneraud <chg...@gmail.com> wrote: > On 26 August 2017 at 14:27, Oliver Niebuhr > <googleers...@oliverniebuhr.de> wrote: > > Am 26.08.2017 um 03:26 schrieb Christian Gagneraud: > >> Hi there, > >> > >> I have an application that requires a 32 bits version of Qt-5.6 and > >> fixing the 32 vs 64 bits issues of this app is not option at this > >> stage. > >> > >> So I need to build Qt-6.6 in 32 bits mode on a 64 bits Linux platfrom, > >> and then i need to build and run my 32 bits app on the same 64 bits > >> Linux platform against this 32 bits Qt-5.6. > >> > >> Is it possible to to build 32 bits Qt on 64 bits platform? Has anyone > >> manage to do that? Any advice, tips or tricks to share? > >> > >> Thanks in advance, > >> Chris > >> _______________________________________________ > >> Interest mailing list > >> Interest@qt-project.org > >> http://lists.qt-project.org/mailman/listinfo/interest > >> > > > > Good Morning. > > Good evening, > > > Yes it is possible. To build 32-Bit Binaries and Libs on a 64-Bit OS, > > you must install the "Multilib" Version of the Compiler and the used > > Dev-Packages. So in example for the GCC Compiler (G++): Remove the "GCC" > > Package and replace it with "GCC-Multilib" (at least this is the Name > > under Antergos Linux (Arch based). Not sure about other Distros. My main > > OS is still Windows so I am still kind-a noob when it comes to Linux > > Development :) > > > > Some 32-Bit Libraries (or Package Names to be more precise) are named > > like "lib32-example1". Others like "example2-multilib". Depending on the > > Library itself and your Distribution. > > > > You propably need to activate the Multilib Repository for your > > Distribution first, if you dont have any 32-Bit Stuff installed yet. > > > > Qt Configure Parameter for the GCC / G++ Compiler: > > The important Configure Parameter for you (so that Qt tells the > > Compiler to build 32-Bit Binaries etc.) is: > > "/your/qt56/sourcefolder/configure -platform linux-g++-32" > > > > No Idea about other Distros or Compiler like LLVM/Clang. > > Thanks for sharing, i'm running Ubuntu, so it's a bit different. But > yes, one need the multilib stuff and then intall the Qt dependencies > in 32 mode.... > > Chris > > > > > Good Luck :) > > > > Greetings > > Oliver > > _______________________________________________ > > Interest mailing list > > Interest@qt-project.org > > http://lists.qt-project.org/mailman/listinfo/interest > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest >
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