[Mesa-dev] [Bug 75098] New: OpenGL ES2 with fbdev - link error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75098

          Priority: medium
            Bug ID: 75098
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: OpenGL ES2 with fbdev - link error
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: christian.prochaska at genode-labs.com
          Hardware: Other
            Status: NEW
           Version: 10.0
         Component: EGL
           Product: Mesa

I've built Mesa 10.0.3 for using OpenGL ES 2 on fbdev with the following
configuration:

./configure --enable-gles2 --disable-dri --enable-gallium-egl
--with-egl-platforms=fbdev --with-gallium-drivers=swrast

When I tried to build the 'es2gears' example (from the mesa-demos archive)
using the command

gcc -o es2gears es2gears.c ../eglut/eglut_screen.c ../eglut/eglut.c -I../eglut
-lGLESv2 -lEGL -lm

the following link error occured:

/usr/local/lib/libGLESv2.so: undefined reference to `_glapi_Dispatch'
/usr/local/lib/libGLESv2.so: undefined reference to `_glapi_get_dispatch'
collect2: error: ld returned 1 exit status

I could finally get it to work by adding the '--enable-shared-glapi' configure
option (which made libGLESv2.so link with libglapi.so.0, which contains the
missing symbols), but only after editing the configure script to not make this
option depend on DRI ("Shared GLAPI is only useful for DRI, disabling").

Is this the correct solution or is the real problem somewhere else?

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