142e2da440 net: add I2P seeds to chainparamsseeds (Jon Atack)
e01f173fb9 contrib: add a few I2P seed nodes (Jon Atack)
ea269c7ef1 contrib: parse I2P addresses in generate-seeds.py (Jon Atack)
Pull request description:
Follow-up to #21560 that updated the fixed seeds infra for BIP155 addresses and then added Tor v3 ones:
- Update contrib/generate-seeds.py to parse I2P addresses
- Add a few I2P nodes to contrib/seeds/nodes_main.txt
- Run generate-seeds.py and add the I2P seeds to chainparamsseeds.h
Reviewers, see contrib/seeds/README.md for more info and feel free to use the following CLI one-liner to check for and propose additional seeds for contrib/seeds/nodes_main.txt. You can also see how many I2P peers your node knows with cli -addrinfo.
```rake
bitcoin-cli getnodeaddresses 0 | jq '.[] | (select(.address | contains(".b32.i2p"))) | .address' | sort
```
I verified the I2P addresses are correctly BIP155-serialized/deserialized by building with all seeds removed from chainparamsseeds.h except those added here, restarting with `-datadir=newdir -dnsseed=0` and running rpc ` getnodeaddresses 0` that initially returns only the new I2P addresses.
ACKs for top commit:
laanwj:
ACK 142e2da440
vasild:
ACK 142e2da440
Tree-SHA512: 040576012d5f1f034e2bd566ad654a6fdfd8ff7f6b12fa40c9fda1e948ebf8417fcea64cfc14938a41439370aa4669bab3e97274f9d4f9a6906fa9520afa9cf8
We already attest to the relevant dist-archive in inputs.SHA256SUMS,
which is recorded at build-time.
We use a SKIPATTEST.TAG file to indicate output directories which do not
require attestation (much like the CACHEDIR.TAG specification).
Generally, it's better to have build scripts declare properties of
directories instead of introducing name-based special cases in attest
scripts since build scripts have a more detailed context of what is
going on.
At build/codesigning-time, hash build inputs and output the digest to
${OUTDIR}/inputs.SHA256SUMS, which gets included in the final SHA256SUMS
constructed by guix-attest.
Example final SHA256SUMS:
ee832d2a35b7701bff581dea05a536118b118e3ad0a587a2855b6ee8cd6fba20 inputs/bitcoin-78199266af7b.tar.gz
ca765e70a0c12866dd63c0be228b675278a26329e5f8f5b5c52fd09200fedf21 bitcoin-78199266af7b-powerpc64le-linux-gnu-debug.tar.gz
dae95327d7f2c324e2728c4b73627be6cb2c0d2f2e5bea940d1d5e6463939327 bitcoin-78199266af7b-powerpc64le-linux-gnu.tar.gz
While files are being output to $OUTDIR, it will be under
${DISTSRC}/output, and only when everything is done, will
${DISTSRC}/output be moved to the actual $OUTDIR.
This makes it so that a Ctrl-C in the middle of a build is less likely
to result in a partially-constructed $OUTDIR. In fact, if I understand
correctly, if $OUTDIR and $DISTSRC reside on the same filesystem, the
move (rename) is likely atomic.
Also, since the "working $OUTDIR" is under ${DISTSRC}/output, it will be
cleaned properly by the guix-clean script.
c799a19b4b build, qt: No longer need to set QT_RCC_TEST=1 for determinism (Hennadii Stepanov)
Pull request description:
The Qt Resource Compiler (rcc) output order relies on [`QHash`](https://doc.qt.io/qt-5/qhash.html):
> This randomization of `QHash` is enabled by default. Even though programs should never depend on a particular `QHash` ordering, there may be situations where you temporarily need deterministic behavior, for example for debugging or regression testing. To disable the randomization, define the environment variable `QT_HASH_SEED` to have the value 0.
Since #3620 we use `QT_RCC_TEST=1` to achieve a deterministic output.
Since Qt 5.3.1 hash seeding is disabled for all of the bootstrapped tools, including rcc. Therefore, `QT_RCC_TEST=1` is no longer needed.
See commit [5283a6c87beac5a43f612786fefd6e43f2c70bf6](5283a6c87b).
ACKs for top commit:
fanquake:
ACK c799a19b4b
Tree-SHA512: 9d116ac1e8c605ee3e8ed7f618586f0de85d8b06bbbb70fe8c298939ce203d2a7e97264a9afac037179993ab54c5f69a65ebb9ab27ca7f45acb963011bd45743
55d85834cc script: Add trusted key for hebasto (Hennadii Stepanov)
Pull request description:
It is assumed that my responsibility will be limited to the [GUI repo](https://github.com/bitcoin-core/gui).
ACKs for top commit:
laanwj:
ACK 55d85834cc
MarcoFalke:
matches the key I have locally ACK 55d85834cc🍪
jarolrod:
ACK 55d85834cc🥃
Tree-SHA512: 256d03e108c9a14e251340ac6e91234d076778cb6bd551439182176207051f4efc55d396754867e5a7191c8c698610f92016668e163037c67dde56f4136026b8
Passing ADDITIONAL_GUIX_COMMON_FLAGS="--no-substitutes --bootstrap" as
suggested doesn't work:
```bash
...outputting in: '/bitcoin/guix-build-a1f0b8b62eb8/output/x86_64-linux-gnu'
...bind-mounted in container to: '/outdir-base/x86_64-linux-gnu'
guix time-machine: error: bootstrap: unrecognized option
```
and I think bootstrapping is more than covered in the preceding "Choose
your security model" section.
867a5e172a guix: Register garbage collector root for containers (Carl Dong)
8f8b96fb54 guix: Update hint messages to mention guix-clean (Carl Dong)
44f6d4f56b guix: Record precious directories and add guix-clean (Carl Dong)
84912d4b24 build: Remove spaces from variable-printing rules (Carl Dong)
Pull request description:
```
guix: Record precious directories and add guix-clean
Many users have reported problems that stem from having an unclean
working tree. To that end, I've written a guix-clean script which should
help reset the working tree while respecting user-specified precious
directories.
Precious directories, such as:
- SOURCES_PATH
- BASE_CACHE
- SDK_PATH
- OUTDIR
Should be preserved when cleaning the working tree, and are thus
recorded in ./contrib/guix/var/precious_dirs.
The ./contrib/guix/guix-clean script is able to parse that file and make
sure to avoid them when cleaning out the working tree.
```
ACKs for top commit:
laanwj:
ACK 867a5e172a
Tree-SHA512: c498fad781ff5e6406639df2b91b687fc528273fdf266bcdba8f6eec3b3b37ecce544b6da0252f0b9c6717f9d88e844e4c7b72d1877bdbabfc6871ddd0172af5
By registering the container profiles as garbage collector roots, it
will prevent `guix gc` from garbage collecting derivations which our
container needs and inconvieniencing the user with a rebuild.
b2ee8b207d net: Deserialize hardcoded seeds from BIP155 blob (W. J. van der Laan)
9b29d5df7f contrib: Add explicit port numbers for testnet seeds (W. J. van der Laan)
2a257de113 contrib: Add a few TorV3 seed nodes (W. J. van der Laan)
06030f7a42 contrib: generate-seeds.py generates output in BIP155 format (W. J. van der Laan)
Pull request description:
Closes#20239 and mitigates my node's problem in #21351.
- Add a few hardcoded seeds for TorV3
- As the [bitcoin-seeder](https://github.com/sipa/bitcoin-seeder) doesn't collect TorV3 addresses yet, I have extracted these from my own node using [a script](https://gist.github.com/laanwj/b3d7b01ef61ce07c2eff0a72a6b90183) and added them manually. This is intended to be a temporary stop gap until 22.0's seeds update.
- Change hardcoded seeds to variable length BIP155 binary format.
- It is stored as a single serialized blob in a byte array, instead of pseudo-IPv6 address slots. This is more flexible and, assuming most of the list is IPv4, more compact.
- Only the (networkID, addr, port) subset (CService). Services and time are construed on the fly as before.
- Change input format for `nodes_*.txt`.
- Drop legacy `0xAABBCCDD` format for IPv4. It is never generated by `makeseeds.py`.
- Stop interpreting lack of port as default port, interpret it as 'no port', to accomodate I2P and other port-less protocols (not handled in this PR). An explicit port is always generated by `makeseeds.py` so in practice this makes no difference right now.
A follow-up to this PR could do the same for I2P.
ACKs for top commit:
jonatack:
ACK b2ee8b207d
Tree-SHA512: 11a6b54f9fb0192560f2bd7b218f798f86c1abe01d1bf37f734cb88b91848124beb2de801ca4e6f856e9946aea5dc3ee16b0dbb9863799e42eec1b239d40d59d
Many users have reported problems that stem from having an unclean
working tree. To that end, I've written a guix-clean script which should
help reset the working tree while respecting user-specified precious
directories.
Precious directories, such as:
- SOURCES_PATH
- BASE_CACHE
- SDK_PATH
- OUTDIR
Should be preserved when cleaning the working tree, and are thus
recorded in ./contrib/guix/var/precious_dirs.
The ./contrib/guix/guix-clean script is able to parse that file and make
sure to avoid them when cleaning out the working tree.
7476b46f18 guix: Build dmg as a static binary (Carl Dong)
06d6cf6784 depends: libdmg-hfsplus: Skip CMake RPATH patching (Carl Dong)
65176ab573 guix: Remove codesign_allocate+pagestuff from unsigned tarball (Carl Dong)
ca85679eb4 guix: Use clang-toolchain instead of clang (Carl Dong)
1aec0eda8f guix: Fallback to local build for substitute-enabled Guix users (Carl Dong)
1742f8e12d guix: Add early health check for guix-daemon (Carl Dong)
c1ae726a13 guix: More thoroughly control native toolchain (Carl Dong)
39741128d3 guix: Supply --link-profile (Carl Dong)
d55a1056ee guix: Add troubleshooting documentation entries (Carl Dong)
7f401c953f guix: Adapt guix-build to prelude, restructure hier (Carl Dong)
4eccf063b2 guix: Remove guix-build.sh filename extension (Carl Dong)
7753357a7b guix: Add source-able bash prelude and utils (Carl Dong)
e5b49a01f5 guix: Create windeploy inside distsrc-* (Carl Dong)
3e9982ab38 contrib: Silence git-describe when looking for tag (Carl Dong)
d5a71e9785 guix: Use --cores instead of --max-jobs (Carl Dong)
Pull request description:
This PR addresses a few hiccups encountered by the brave souls who've been experimenting with the Guix scripts:
- Resolves confusion between `--cores=` and `--max-jobs=`
- `guix`'s `--cores=` actually corresponds to make's `--jobs=`, so let's just control `--cores=` with our overridable env var
- `git-describe` will scream `fatal: no tag exactly matches '<hash>'` when looking for a tag, but we don't care, so silence that
- `windeploy/unsigned` should be inside `distsrc-*` and created idempotently (sorry I know this one annoyed people)
- Add troubleshooting documentation to `README.md`
- Add early health check for `guix-daemon` in case user forgot to start a `guix-daemon`
- Depending on configuration, a `--fallback` flag may be needed to tell Guix to not fail if substitutes fail but fallback to building locally
- `codesign_allocate` and `pagestuff` are now unnecessary for codesigning as we're now using `signapple`
A few robustness changes are also included:
- We supply the `--link-profile` flag, as some Guix packages may expect the profile to be available under `$HOME/.guix-profile`
- We now clear and manually set all toolchain-related env vars (e.g. `C*_INCLUDE_PATH`) ourselves, after patching a Qt::moc bug
- We use the native `clang-toolchain` package for darwin builds instead of `clang`, lining up with all our other toolchain packages.
Finally, we restructure the guix building hierarchy such that it looks something like:
```
guix-build-<short-hash-or-version-tag>
├── distsrc-<short-hash-or-version-tag>-${HOST}
│ ├── contrib
│ ├── depends
│ ├── src
│ └── ...
├── distsrc-<short-hash-or-version-tag>-...
└── output
├── dist-archive
│ └── bitcoin-<short-hash-or-version-tag>.tar.gz
├── *-linux-*
│ ├── bitcoin-<short-hash-or-version-tag>-*-linux-*-debug.tar.gz
│ └── bitcoin-<short-hash-or-version-tag>-*-linux-*.tar.gz
├── x86_64-apple-darwin18
│ ├── bitcoin-<short-hash-or-version-tag>-osx64.tar.gz
│ ├── bitcoin-<short-hash-or-version-tag>-osx-unsigned.dmg
│ └── bitcoin-<short-hash-or-version-tag>-osx-unsigned.tar.gz
└── x86_64-w64-mingw32
├── bitcoin-<short-hash-or-version-tag>-win64-debug.zip
├── bitcoin-<short-hash-or-version-tag>-win64-setup-unsigned.exe
├── bitcoin-<short-hash-or-version-tag>-win64.zip
└── bitcoin-<short-hash-or-version-tag>-win-unsigned.tar.gz
```
Separating guix builds by their version identifier (basically namespacing them) allows us to change the layout in the future without worry about potential naming conflicts.
ACKs for top commit:
sipa:
ACK 7476b46f18
laanwj:
ACK 7476b46f18
Tree-SHA512: 0e899aa941aafdf552b2a7e8a08131ee9283180bbef7334439e2461a02aa7235ab7b9ca9c149b80fc5d0a9f4bbd35bc80fcee26197c0836ba8eaf2d86ffa0386
This relatively easy change eliminates all runtime dependencies (except
for the kernel) for dmg, which is the only native build tool that gets
put in our output tarballs.
This allows much more flexibility when constructing the codesigning
environment, and is much more robust.
./windeploy is a "working directory", and therefore belongs inside
distsrc-*. Many people have noticed their Guix builds failing after
hours simply because they did not remove windeploy (but did remove the
distsrc-* directories).
In Guix, there are two flags for controlling parallelism:
Note: When I say "derivation," think "package"
--cores=n
- controls the number of CPU cores to build each derivation. This is
the value passed to `make`'s `--jobs=` flag.
- defaults to 0: as many cores as is available
--max-jobs=n
- controls how many derivations can be built in parallel
- defaults to 1
Therefore, if set --max-jobs=$MAX_JOBS and don't set --cores, Guix could
theoretically spin up $MAX_JOBS * $(nproc) number of threads, and that's
no good.
So we could either default to --cores=1, --max-jobs=$MAX_JOBS
- Pro: --cores=1 means that `make` will be invoked with `-j1`,
avoiding problems with package whose build systems and test
suites break when running multi-threaded.
- Con: There will be times when only 1 or 2 derivations can be built
at a time, because the rest of the dependency graph all depend
on those 1 or 2 derivations. During these times, the machine
will be severely under-utilized.
or --cores=$MAX_JOBS, --max-jobs=1
- Pro: We don't encounter prolonged periods of
severe under-utilization mentioned above.
- Con: Many packages' build systems and test suites break when running
multi-threaded.
or --cores=1, --max-jobs=1 and let the user override with
$ADDITIONAL_GUIX_COMMON_FLAGS
3a0446fad4 script: Add explanatory comment to tc.sh (dscotese)
Pull request description:
This is a replacement for #21289
tc.sh is used to limit bandwidth. I ran it and it is limiting my bandwidth. When I ran it, I got one error. I have not found an explanation anywhere of what the error means, but my best guess is consistent with the result, so I propose the explanatory comment to save others time when they use it and also get the error.
ACKs for top commit:
laanwj:
that said, LGTM ACK 3a0446fad4
Tree-SHA512: 5403a2a0fec3724625c20402a96334c3c7a620324a930c5fd828017da8911d2867aecb7a2ad94a23d1f189009d3eb197a67eb59c8e4531fd215d9b1edb600440
663f6cd9dd contrib: Use -daemonwait in systemd init script (Wladimir J. van der Laan)
Pull request description:
Make systemd invoke dependencies only when ready by using `-daemonwait` in the service file instead of `-daemon`.
Closes#21322 by making bitcoind conform to behavior specified for `type=forking`.
This may need some tuning of timeouts.
ACKs for top commit:
darosior:
ACK 663f6cd
hebasto:
re-ACK 663f6cd9dd
Tree-SHA512: 890005852b632a202caa578e6c796ebdc9da0b2379a9157a4f56f7db9d193c0ffbb78d120bbf112ab2f273855f2a08c3da000b1f7a9fb5222a3b94dcdb16b878
Because only macOS wasy mentioned, I was unsure if this would be a macOS specific tool. I guess Linux is more used than Mac, so Linux guide should be there, too.
0fc0c00f7a test: Drop unused get_machine function (Hennadii Stepanov)
61a0f8f9cc test: Cleanup test files in test-{security,symbol}-check.py (Hennadii Stepanov)
Pull request description:
1) Test source and executable files are neither ignored by `.gitignore` nor removed by `make clean` and `make distclean`.
2) The `get_machine` function is no longer used since #21255.
ACKs for top commit:
fanquake:
ACK 0fc0c00f7a
Tree-SHA512: ef3fcf22d4a04b6e4f37f748bd4be57e09696d2a77982e26292843cb2a1297789c8325f5c4bdad37d8094fce7765c4cc9ab19809e07471487943361b2b1a252c
e4c0cada79 ci, gitian: Drop unneeded python3-dev package for macOS builds (Hennadii Stepanov)
Pull request description:
ACKs for top commit:
fanquake:
ACK e4c0cada79 - gitian builds match and I checked that this doesn't end up installed as a side-effect of another package.
Tree-SHA512: 520a3909b106a0e005b195c5395691edf62b76ee2df43b6971b7aa193648d68e6dac69cb4f1dc474f594b015a2fc2074061865e571d89365174beb5c1780356f
95f97111dd contrib/init: (OpenRC) quote some unquoted variables. (parazyd)
737feadff7 contrib/init: (OpenRC) Do not fail if both rpcuser and rpcpassword are unset. (parazyd)
Pull request description:
This pull request improves the available OpenRC initscripts in
`contrib/init`.
The first commit (737feadff7) reworks
`checkconfig()` to not fail if **both** `rpcuser` and `rpcpassword`
are unset, because this implies that bitcoind shall use the `.cookie`
file for RPC authentication. Currently, the initscript does not allow
starting bitcoind without a set `rpcuser` and `rpcpassword`.
The second commit (95f97111dd) simply
quotes some unquoted variables.
ACKs for top commit:
kristapsk:
ACK 95f97111dd
Tree-SHA512: 62bebcd07143c147e349c0cfc17b54ef21bd4684377b444f58c6bd1f509a4d3e1af58746fa7215f18e33021f691bbbc5e42f4df497458322b055e545b7f30d46
remove fix_configure_mac.patch
Fixed upstream: https://bugreports.qt.io/browse/QTBUG-67286
remove fix_riscv64_arch.patch
Was fixed upstream in 6a39e49a6cdeb28a04a3657bb6a22f848d5dfa9d
remove fix_rcc_determinism.patch
Fixed upstream in https://bugreports.qt.io/browse/QTBUG-62511
remove freetype_back_compat.patch
By the time we ship a release with Qt 5.12, we'll certainly no-longer be
supporting Ubuntu 14.04 and Ubuntu 16.04 ships with FreeType 2.6.1,
which is new enough that using the symbol is no-longer an issue.
The renaming of FT_Get_X11_Font_Format() happened in FreeType 2.6
remove xkb-default.patch
This was removed upstream in d5abf545971da717014d316127045fc19edbcd65
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
f7f3829a68 build, doc: Drop libbz2-dev from macOS cross-compiling dependencies (Hennadii Stepanov)
d8239362e2 build, doc: Drop libcap-dev from macOS cross-compiling dependencies (Hennadii Stepanov)
Pull request description:
The `libcap-dev` and `libbz2-dev` packages are no longer required when cross-compiling for macOS.
ACKs for top commit:
fanquake:
ACK f7f3829a68
Tree-SHA512: 820cdc2724f3346c0942d4d4115fc7206f7bf02889d9fa6cbdbd1d9e3afa03a067c1c3fa64dff596aefdc74898178b7c7d64027a6501486e3b606f4760de04ae
fbbb2d4fc1 lint: Fix spelling errors in comments (fyquah)
Pull request description:
Found some spelling errors while running spelling linter https://github.com/bitcoin/bitcoin/pull/21245
This PR fixes them.
ACKs for top commit:
fanquake:
ACK fbbb2d4fc1 - I thought we just fixed all of these.
Tree-SHA512: 95525040001f94e899b778c616cb66ebafb679dff88835b66fccf6349d8eb942d6b7374c536a44e393f13156bce9a32ed57e6a82bb02074d2b3cddb2696addb2
c33b199456 guix: Bump glibc and linux-headers (Carl Dong)
65363a1bd8 guix: Rebase on 95aca2991b (1.2.0-12.dffc918) (Carl Dong)
Pull request description:
On bumping the time-machine:
```
A few changes which are useful for us:
1. 'gnu: cross-gcc-arguments: Enable 128 bit long double for POWER9.' is
now merged into master.
2. gnutls is bumped to 3.6.15 and the temporal test failure in
status-request-revoked is fixed. Note that this does not fix the case
where one has installed Guix v1.2.0 and is running a substitute-less
bootstrap build, since the `guix time-machine` command itself has a
dependency on gnutls v3.6.12 (the one with the broken test) and will
thus try to build it before attempting to jump forwards in time. This
does however, mean that those who build a version of Guix that also
contains this fix will not go backwards in time to build the broken
gnutls v3.6.12.
```
On bumping the rest:
```
Bump glibc and linux-headers to match those of our Gitian counterparts.
We also require a glibc >= 2.28 for the test-symbol-check scripts to
work properly.
The default BASE-GCC-FOR-LIBC also has to be bumped since glibc 2.31
requires a gcc >= 6.2
```
This is a prerequisite for #20980
ACKs for top commit:
fanquake:
ACK c33b199456 - I think going ahead with this now and to sycn back up to gitian is fine. It will also unblock #20980. Potential code signing related issues can be sorted out in #21239 and later PRs.
Tree-SHA512: 31f022aadb93ba44813b0da005b1f2e5d67d76e8cdcdb53368924d1ea6cb076a21218c26831a6b0dcdcfe33507f54934330489ba557371d740f5587b7d727b95
a0a7a4337d guix, doc: Update default HOSTS value (Hennadii Stepanov)
Pull request description:
This is a #21089 follow up.
ACKs for top commit:
fanquake:
ACK a0a7a4337d
Tree-SHA512: c1813cc2b9212a79fd34d4e25cd0816b58264e1890daf777cd59411bd20fcc9affe312871d06fab1308b8f55c1a78ac1101e631882c18360a4709ecef4529f05
13a9fd11a5 guix: Passthrough SDK_PATH into container (Carl Dong)
Pull request description:
This is a usability improvement for Guix builders so that they don't have to extract the Xcode tarball into `depends/SDKs` every time.
Inspiration: https://github.com/bitcoin/bitcoin/pull/21089#issuecomment-778639698
ACKs for top commit:
laanwj:
Tested ACK 13a9fd11a5
Tree-SHA512: 63392d537e48a0da9f0ee04a929613b139bef1ac5643187871c9ea5376afd2a3d95df0f5e0950ae0eccd2813b166667be98401e5a248ae9c187fe4e84e54d427
Bump glibc and linux-headers to match those of our Gitian counterparts.
We also require a glibc >= 2.28 for the test-symbol-check scripts to
work properly.
The default BASE-GCC-FOR-LIBC also has to be bumped since glibc 2.31
requires a gcc >= 6.2
A few changes which are useful for us:
1. 'gnu: cross-gcc-arguments: Enable 128 bit long double for POWER9.' is
now merged into master.
2. gnutls is bumped to 3.6.15 and the temporal test failure in
status-request-revoked is fixed. Note that this does not fix the case
where one has installed Guix v1.2.0 and is running a substitute-less
bootstrap build, since the `guix time-machine` command itself has a
dependency on gnutls v3.6.12 (the one with the broken test) and will
thus try to build it before attempting to jump forwards in time. This
does however, mean that those who build a version of Guix that also
contains this fix will not go backwards in time to build the broken
gnutls v3.6.12.
a6a1b106dc guix: only download sources for hosts being built (fanquake)
Pull request description:
For example, if a user is only interested in building for Linux, this saves downloading the macOS compiler and additional dependencies, which is meaningful on a slow/poor connection. This will result in a few additional `make` invocations, for the Linux hosts, however this is low overhead, and time-wise irrelevant in terms of the overall build.
ACKs for top commit:
laanwj:
Code review ACK a6a1b106dc
Tree-SHA512: 34c916ae6f69fed0d5845690b39111a8bee37208fd727176f375cf5eb4860f512abe12bde2680d697c859b4d50a3bc5688ddca7c2f28f9968fcf358753cf3f6d
95990b9f32 guix: Update conservative space requirements (Carl Dong)
5e6df11326 guix: Add support for powerpc64{,le} (Carl Dong)
Pull request description:
```
The new time-machine commit contains a few small changes that make the
powerpc cross-toolchain work.
```
See this compare to review my custom patches to Guix: 7d6bd44da5...6c9d16db96
ACKs for top commit:
fanquake:
ACK 95990b9f32
Tree-SHA512: 464b0fb93d65962d8c27499293edb618d13d18f40d44e3eed96935e86d430666dfb1c5b8a30f99ffdfd17b44514ad88e358977390b689a2e3831d521f6f7b86a
If a user is only interested in building for Linux, this saves
downloading the macOS compiler and additional dependencies.
This will result in a few additional `make` invocations, for the Linux
hosts, however this is quite low overhead.
Co-authored-by: Carl Dong <contact@carldong.me>
