Gentoo's Bugzilla –
Attachment 594522 Details for
Bug 698898media-libs/gst-plugins-base-1.14.5-r1 - ld: .libs/libgstgl_1.0_la-gstglcontext.o: in function `gst_gl_context_new': gstglcontext.c:(.text+0xb5c): undefined reference to `gst_gl_context_glx_new'