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[Bug 1986936] Re: No libQt5Core.so, libQt5Widgets.so and libQt5Gui.so symlinks in the corresponding :i386 packages

To: ubuntu-sdk-bugs@xxxxxxxxxxxxxxxxxxx
From: lvd <1986936@xxxxxxxxxxxxxxxxxx>
Date: Thu, 18 Aug 2022 12:36:33 -0000
Reply-to: Bug 1986936 <1986936@xxxxxxxxxxxxxxxxxx>
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** Package changed: ubuntu => qtbase-opensource-src (Ubuntu)

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https://bugs.launchpad.net/bugs/1986936

Title:
  No libQt5Core.so, libQt5Widgets.so and libQt5Gui.so symlinks in the
  corresponding :i386 packages

Status in qtbase-opensource-src package in Ubuntu:
  New

Bug description:
  While trying to link against corresponding libraries to get i386 executable like that:
  > g++ -m32 -o filename ..... -lQt5Widgets -lQt5Gui -lQt5Core ...

  I get the following errors:

  > /usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libQt5Widgets.so when searching for -lQt5Widgets                                                                                                         
  > /usr/bin/ld: cannot find -lQt5Widgets: No such file or directory                                                                                                                                                      
  > /usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libQt5Widgets.so when searching for -lQt5Widgets                                                                                                         
  > /usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libQt5Gui.so when searching for -lQt5Gui                                                                                                                 
  > /usr/bin/ld: cannot find -lQt5Gui: No such file or directory                                                                                                                                                          
  > /usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libQt5Gui.so when searching for -lQt5Gui                                                                                                                 
  > /usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libQt5Core.so when searching for -lQt5Core                                                                                                               
  > /usr/bin/ld: cannot find -lQt5Core: No such file or directory                                                                                                                                                         
  > /usr/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libQt5Core.so when searching for -lQt5Core 

  despite corresponging packages are installed (libqt5gui5:i386 and same
  for widgets and core).

  Inspection of /usr/lib/i386-linux-gnu/ reveals that there is no
  symlinks named exactly libQt5Core.so (and same for two other libs).

  Adding those symlinks by hand completely solves the problem.

  I believe however that those symlinks must be installed by
  corresponding .debs.

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