Public bug reported:

According to the Xenial's build log, it did not build as gles for the
arm64 even though it should be built with -opengl es2 option.

> debian/rules
gles2_architectures := armel armhf arm64                                        
                                                                                
                              
ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), $(gles2_architectures)))  
                                                                                
                              
        extra_configure_opts += -opengl es2                                     
                                                                                
                              
else                                                                            
                                                                                
                              
        extra_configure_opts += -opengl desktop                                 
endif 

Here is the xenial's build log and it shows OpenGL as Desktop version.

- Xenial build log: 
https://launchpadlibrarian.net/319422529/buildlog_ubuntu-xenial-arm64.qtbase-opensource-src_5.5.1+dfsg-16ubuntu7.5_BUILDING.txt.gz
  OpenGL / OpenVG: 
    EGL .................. yes
    OpenGL ............... desktop

However, the zesty's build log shows OpenGL as ES2.

- Zesty build log: 
https://launchpadlibrarian.net/328680692/buildlog_ubuntu-zesty-arm64.qtbase-opensource-src_5.7.1+dfsg-2ubuntu4~1.17.04.1_BUILDING.txt.gz
  OpenGL / OpenVG: 
    EGL .................. yes
    OpenGL ............... yes (OpenGL ES 2.0+)

** Affects: qtbase-opensource-src (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1709881

Title:
  [xenial] QT5 gles support for arm64 architecture

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

Bug description:
  According to the Xenial's build log, it did not build as gles for the
  arm64 even though it should be built with -opengl es2 option.

  > debian/rules
  gles2_architectures := armel armhf arm64                                      
                                                                                
                                
  ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), 
$(gles2_architectures)))                                                        
                                                        
          extra_configure_opts += -opengl es2                                   
                                                                                
                                
  else                                                                          
                                                                                
                                
          extra_configure_opts += -opengl desktop                               
  
  endif 

  Here is the xenial's build log and it shows OpenGL as Desktop version.

  - Xenial build log: 
https://launchpadlibrarian.net/319422529/buildlog_ubuntu-xenial-arm64.qtbase-opensource-src_5.5.1+dfsg-16ubuntu7.5_BUILDING.txt.gz
    OpenGL / OpenVG: 
      EGL .................. yes
      OpenGL ............... desktop

  However, the zesty's build log shows OpenGL as ES2.

  - Zesty build log: 
https://launchpadlibrarian.net/328680692/buildlog_ubuntu-zesty-arm64.qtbase-opensource-src_5.7.1+dfsg-2ubuntu4~1.17.04.1_BUILDING.txt.gz
    OpenGL / OpenVG: 
      EGL .................. yes
      OpenGL ............... yes (OpenGL ES 2.0+)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1709881/+subscriptions

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