2de2ea2ff63b97eacb23234932c6e1f1f65e4494 build, depends: Fix `libmultiprocess` cross-compilation (Hennadii Stepanov)
Pull request description:
On the master branch @ 3b12fc7bcd94cf214984911f68612feb468d5404, the following command fails:
```
$ make -C depends libmultiprocess HOST=arm64-apple-darwin MULTIPROCESS=1
...
[100%] Linking CXX executable mpgen
...
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
...
```
This PR prevents building all default targets that include `mpgen`, which expectedly fails to link when cross-compiling.
ACKs for top commit:
ryanofsky:
Code review ACK 2de2ea2ff63b97eacb23234932c6e1f1f65e4494
fanquake:
ACK 2de2ea2ff63b97eacb23234932c6e1f1f65e4494 - I checked that this fixes the macOS cross-compilation issue. I'm assuming these packages are also likely to change further in the (near) future, given the changes going in upstream: https://github.com/chaincodelabs/libmultiprocess/pulls?q=is%3Apr+is%3Aclosed.
Tree-SHA512: 563551afbe483c923b52c6171f9d73bcc30bc4febd821b5abfe8aadb2ac601b94c2d10a73746ace3710d9f0afa4798eb090e77ccb1ae66a819495912802d91c9
63c0c4ff10b2f6ed8510ef372a5b1f6a6494b179 depends: reuse _config_opts for CMake options (Cory Fields)
Pull request description:
Context: I'm [currently experimenting with building our depends with CMake when possible](https://github.com/theuni/bitcoin/commits/depends-cmake) as part of our future transition to CMake. Specifically zmq, libevent, libnatpmp, and miniupnpc all have existing CMake buildsystems. Building them with CMake will allow us to drop several deps that we currently have (autoconf, automake, pkg-config, etc) which would be unfortunate to carry over after the switch-over.
But that's not relevant for this PR. This is just a very simple change that makes the above work easier to experiment with as it [adds a needed feature for CMake packages](5733dc2000 (diff-e6ed342a25092e0a6d0308e0bfd826044578847132cc6726ac4afa2ca767b61aR20)). It's a no-op for the current builds.
---
From commit description:
This will allow us to use the existing machinery for filtering by arch, os, debug/release, etc.
For example, the following becomes possible for libevent when building with CMake:
`$(package)_config_opts_release=-DEVENT__DISABLE_DEBUG_MODE`
Now the define is only set when not building depends with DEBUG=1
ACKs for top commit:
hebasto:
ACK 63c0c4ff10b2f6ed8510ef372a5b1f6a6494b179
Tree-SHA512: 17d123219d2f98c017880196966ffebd5d09d3e2db8e443e227eb7e49da46e9d971fbe7fd2b99a324fc367e1bbe0ac3cd15b399bce98dd87fbb144d767e15fe7
c0f5cc14ef9fae2b2de4222ee061729629ebb6b4 build: Fix `libmultiprocess` cross-compiling to Linux hosts (Hennadii Stepanov)
Pull request description:
To successfully call the [`capnp_generate_cpp()`](d576d975de/CMakeLists.txt (L45)) function, the `libmultiprocess` build system must be provided with paths to the native `capnp` and `capnpc-c++` tools.
This [comment](https://github.com/bitcoin/bitcoin/issues/24387#issuecomment-1054776195) points the same:
> I think `packages/libmultiprocess.mk` probably needs to be passing a `-DCAPNP_EXECUTABLE=.../depends/arm-linux-gnueabihf/native/bin/capnp` argument to cmake. Also the package should have dependencies on both `capnp` and `native_capnp`.
Fixesbitcoin/bitcoin#24387.
ACKs for top commit:
ryanofsky:
Code review ACK c0f5cc14ef9fae2b2de4222ee061729629ebb6b4
Tree-SHA512: 2986d8bf98d2761eceba21b1897145c5185a0922d4c2084e8812d4d07dc94237e5c2809036641c4f7c491a3414727fff328cba91ce138b89e37ec5cba61d8f61
7c218dacd0e9602b8f755be42e96c49706f96305 build: specify cmake build dir for multiprocess depends build (fanquake)
Pull request description:
When no build dir is specified, cmake will warn:
```bash
Preprocessing libmultiprocess...
Configuring libmultiprocess...
CMake Warning:
No source or binary directory provided. Both will be assumed to be the
same as the current working directory, but note that this warning will
become a fatal error in future CMake releases.
```
It's unclear if this will actually ever become an error, but it's also easy
enough to just supply the directory, and save this maybe breaking in
future.
ACKs for top commit:
ryanofsky:
Code review ACK 7c218dacd0e9602b8f755be42e96c49706f96305. I guess the purpose of the warning is to encourage people not to build in the source directory, but reasons for encouraging this don't really apply to the depends build system, so it is appropriate to disable the warning.
hebasto:
ACK 7c218dacd0e9602b8f755be42e96c49706f96305, tested on Ubuntu 22.04.
Tree-SHA512: 6904f2095fe62cead4abc644ec888c5d836e54a3c0b2a84c467029116e5d14eba35190570acaa23c6831aed9a4a65898134480cc46cdb141279ec0dc6f534d5f
07dcf1a76e34a6f7c919e7d5c57fa61caea6007b build: remove boost dep from libmultiprocess (fanquake)
Pull request description:
Looks like this hasn't been needed since https://github.com/chaincodelabs/libmultiprocess/pull/25 and was just missed in #19160.
ACKs for top commit:
ryanofsky:
Code review ACK 07dcf1a76e34a6f7c919e7d5c57fa61caea6007b. Should probably wait for GUIX build results, but I think this should be fine
hebasto:
ACK 07dcf1a76e34a6f7c919e7d5c57fa61caea6007b
Tree-SHA512: 7988efd4aaf6ad512d60cfd33f350df56090daf88aac3aed2a1d400e80bc723dc27d27f5fa5d75359f9fae60d04b87d4b120d4e79e3079df8631956ab6c3b83c
e2bab2aa162ae38b2bf8195b577c982402fbee9d multiprocess: add multiprocess travis configuration (Russell Yanofsky)
603fd6a2e708c04ef6c9880f89d0a4cbaa6fc7c5 depends: add MULTIPROCESS depends option (Russell Yanofsky)
5d1377b52bfcd4edf8553aaf332bfeb92fc554cc build: multiprocess autotools changes (Russell Yanofsky)
Pull request description:
This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/projects/10).
---
This PR consists of build changes only. It adds an `--enable-multiprocess` autoconf option (off by default and marked experimental), that builds new `bitcoin-node` and `bitcoin-gui` binaries. These currently function the same as existing `bitcoind` and `bitcoin-qt` binaries, but are extended in #10102 with IPC features to execute node, wallet, and gui functions in separate processes.
In addition to adding the `--enable-multiprocess` config flag, it also adds a depends package and autoconf rules to build with the [libmultiprocess](https://github.com/chaincodelabs/libmultiprocess) library, and it adds new travis configuration to exercise the build code and run functional tests with the new binaries.
The changes in this PR were originally part of #10102 but were moved into #16367 to be able to develop and review the multiprocess build changes independently of the code changes. #16367 was briefly merged and then reverted in #18588. Only change since #16367 has been dropping the `native_boost.mk` depends package which was pointed out to be no longer necessary in https://github.com/bitcoin/bitcoin/pull/16367#issuecomment-596484337 and https://github.com/bitcoin/bitcoin/pull/18588#pullrequestreview-391765649
ACKs for top commit:
practicalswift:
ACK e2bab2aa162ae38b2bf8195b577c982402fbee9d
Sjors:
tACK e2bab2aa162ae38b2bf8195b577c982402fbee9d on macOS 10.15.4
hebasto:
ACK e2bab2aa162ae38b2bf8195b577c982402fbee9d, tested on Linux Mint 19.3 (x86_64):
Tree-SHA512: b5a76eab5abf63d9d8b6d628cbdff4cc1888eef15cafa0a5d56369e2f9d02595fed623f4b74b2cf2830c42c05a774f0943e700f9c768a82d9d348cad199e135c
