So. A while ago, while trying to prevent hogs blowtorching getting turned around, unc0rr altered the old range of blowtorch from 1/8th of 180° up or down, to a 4° gain in upwards and a -4° loss in downwards. He also made it so that starting tunnels could fail to erase sufficient terrain, trapping hogs. Here are a couple of workarounds to more closely approximate old behaviour (do some initial erasure, adjust min/max angles)
#
# Export file for libvorbisidec
#
# Only the symbols listed in the global section will be callable from
# applications linking to libvorbisidec.
#
@PACKAGE@.so.1
{
global:
ov_clear;
ov_open;
ov_open_callbacks;
ov_test;
ov_test_callbacks;
ov_test_open;
ov_bitrate;
ov_bitrate_instant;
ov_streams;
ov_seekable;
ov_serialnumber;
ov_raw_total;
ov_pcm_total;
ov_time_total;
ov_raw_seek;
ov_pcm_seek;
ov_pcm_seek_page;
ov_time_seek;
ov_time_seek_page;
ov_raw_tell;
ov_pcm_tell;
ov_time_tell;
ov_info;
ov_comment;
ov_read;
vorbis_info_init;
vorbis_info_clear;
vorbis_info_blocksize;
vorbis_comment_init;
vorbis_comment_add;
vorbis_comment_add_tag;
vorbis_comment_query;
vorbis_comment_query_count;
vorbis_comment_clear;
local:
*;
};