17ae2601c786e6863cee1bd62297d79521219295 build: remove build stubs for external leveldb (Cory Fields)
Pull request description:
Presumably these stubs indicate to packagers that external leveldb is meant to be supported in some way. It is not. Remove the stubs to avoid sending any mixed messages.
For context, this was reported on IRC:
> \<Talkless> bitcoind fails to start with undefined symbol: _ZTIN7leveldb6LoggerE in Debian Sid after leveldb upgraded from 1.22 to 1.23: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=996486
ACKs for top commit:
fanquake:
ACK 17ae2601c786e6863cee1bd62297d79521219295
hebasto:
ACK 17ae2601c786e6863cee1bd62297d79521219295. I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: 2f1ac2cb30dac64791933a245a2b66ce237bde3955e6f4a6b7ec181248f77a9b1b10597d865d3e2c2b6def696af70de40e905ec274e4ae7cccd1daf461473957
* Update to leveldb upstream using subtree merge
* Import crc32c using subtree merge as as 'src/crc32c'
* build: Update build system for new leveldb
Upstream leveldb switched build systems, which means we need to define
a few different values.
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
* doc: Add crc32c subtree to developer notes
* test: Add crc32c to subtree check linter
* test: Add crc32c exception to various linters and generation scripts
* build: Add LCOV exception for crc32c
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
* build: CRC32C build system integration
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
d34d77a build: verify that the assembler can handle crc32 functions (Cory Fields)
Pull request description:
Also, enable crc32 even if -msse4.2 wasn't added by us, as long as it works. This allows custom flags (such as -march=native) to work as expected.
Addresses #10670.
Tree-SHA512: e1a41a87b078d270bc645814315b229ad9c16556a4d14fb66b27a65b28d0caf9bf324f8c1e221854992aa17f53466eece06faebbf74d59b3d4ff2e6db6c614a4
0c4e6ce Add MIT license to build-aux/m4 scripts (Luke Dashjr)
3f8a5d8 Trivial: build-aux/m4/l_atomic: Fix typo (Luke Dashjr)
3b4b6dc Add MIT license to autogen.sh and share/genbuild.sh (Luke Dashjr)
f4dffdd Add MIT license to Makefiles (Luke Dashjr)
This is a cherry-pick of a4625acb with minor conflict
resolution.
Conflicts:
src/Makefile.am
=====
leveldb: integrate leveldb into our buildsystem
leveldb's buildsystem causes us a few problems:
- breaks out-of-tree builds
- forces flags used for some tools
- limits cross builds
Rather than continuing to add wrappers around it, simply integrate it into our
build.
