lbrycrd | digital content namespace for the LBRY protocol | Blockchain library
kandi X-RAY | lbrycrd Summary
kandi X-RAY | lbrycrd Summary
LBRYcrd uses a blockchain similar to bitcoin's to implement an index and payment system for content on the LBRY network. It is a fork of bitcoin core. In addition to the libraries used by bitcoin, LBRYcrd also uses icu4c. Please read the lbry.tech overview for a general understanding of the LBRY pieces. From there you could read the LBRY spec for specifics on the data in the blockchain.
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QUESTION
I've been using a docker image for c++ compilation. It's based on Ubuntu 18.04. When I attempt to run on some Ubuntu 16 systems, I get this message:
/lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.27' not found
I'll post the full ldd output below. I like using the newer compiler. I would prefer to not compile with an older Linux base image (but I will if necessary). I statically link most libraries, but I haven't been statically linking glibc. A number of web sources recommend against that. Is there some way I can tell my newer compiler (gcc 7.3) to not require the newer glibc? ldd -v output:
...ANSWER
Answered 2019-Mar-07 at 20:55You need to build against an older glibc version. Very few distributions, if any, support that out of the box. The only practical way at the moment is to build on an older distribution.
Some distributions with long support cycles offer newer GCC versions that do not require newer system compilers (such as Developer Toolset, which is available for CentOS and Red Hat Enterprise Linux).
QUESTION
When I run ldd in verbose mode, I get output like that below. What does it mean when multiple versions are listed? Does that mean that any of those versions workable, or that it needs all those versions?
...ANSWER
Answered 2019-Mar-08 at 05:09What does it mean when multiple versions are listed?
It means that your binary references symbols with these versions. See also this and this answer.
Does that mean that any of those versions workable, or that it needs all those versions?
The latter. Or rather, it needs a library that provides all of these symbols, which generally means GLIBC_2.27
or later for GLIBC, and GCC_4.2.0
or later for libgcc
.
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