Based on a patch by Marius Cirsta.
Fixes ticket #2016.
enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
enabled libopencv && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
-enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
+enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
+ check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
die "ERROR: libopenjpeg not found"; }
enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create