/usr/ is in libgles1-mesa-dev 10.1.0-4ubuntu5.
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..
/usr/share/doc/libgles1-mesa-dev/
/usr/share/
/usr/share/doc/
/usr/share/doc/libgles1-mesa-dev/copyright
/usr/share/bug/
/usr/share/bug/libgles1-mesa-dev/
/usr/share/bug/libgles1-mesa-dev/script
/usr/share/bug/libgles1-mesa-dev/control
/usr/include/
/usr/include/GLES/
/usr/include/GLES/glext.h
/usr/include/GLES/egl.h
/usr/include/GLES/glplatform.h
/usr/include/GLES/gl.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/mesa-egl/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/glesv1_cm.pc
/usr/share/doc/libgles1-mesa-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/mesa-egl/libGLESv1_CM.so
/usr/lib/x86_64-linux-gnu/libGLESv1_CM.so