We read *_sources.mk from the opus source tree to get a list
of needed files. As of the 1.0.0 release, those files have
comment lines, which the previous sed one-liner failed to
strip out.
The earlier version attempted this with 's/^#.8//', but
the whole file has been read into memory so we can
remove the line continuation escapes. However, the
newlines are still present, so we can replace this
with 's/#[^\n]*\(\n\)/\1\g' Which replaces everything
from a comment character to a newline with a newline.
We have to capture and subsitute the final newline instead
of using a literal \n because portable sed doesn't expand
that character on the right-hand side. GNU sed will,
however.
This is the IETF Opus audio codec reference implementation.
The source was copied into the tree using the included
update.sh script, from a checkout of the v0.9.9 git tag,
which corresponds to the source code published in
https://tools.ietf.org/id/draft-ietf-codec-opus-11.txt
