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
