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. 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. Good Luck :) Greetings Oliver _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
