1) thanks, i've installed libssl1.0-dev and compling process continued. 2) compiled opus passing --disable-shared to configure b/c shared cannot find library (i'm new to Linux) 3) compiled opus 1.3-beta-40 successfully! it is faster than 32 bit Windows version! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/opus/attachments/20180526/2a302119/attachment.html>