The gst-plugins-base configure script claims that the subparse plugin is
dependency-less - but it also silently disables subparse if libxml2 is
not available. So depend on libxml2 when subparse is selected.
Note: the analogous gst1 subparse plugin does not have this requirement.
Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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