1e94a2bcbc5ff8ae61eed9f31317ea534649116d depends: Add --sysroot option to mac os native compile flags (Russell Yanofsky)
Pull request description:
Catalina SDK clang stopped automatically searching the SDK include paths when invoked without `--sysroot`:
- https://github.com/bitcoin/bitcoin/pull/16367#issuecomment-594600985
- https://github.com/Homebrew/homebrew-core/issues/45061
This hasn't been a problem for current native depends packages because are passing their own `--sysroot` values, and hasn't been a problem for current host packages because they use `darwin_` commands instead of `build_darwin_` commands. But the current `build_darwin_CC` and `build_darwin_CXX` commands are still unnecessarily fragile, and incompatible with new native depends packages added in https://github.com/bitcoin/bitcoin/pull/18677.
Cory Fields (theuni) suggested in https://github.com/bitcoin/bitcoin/pull/16367#issuecomment-595393546 switching compiler from SDK clang to native clang (from $PATH) to avoid this problem. This is easy and makes a certain amount of sense for building native packages, as opposed to host packages. But Michael (fanquake) pointed out in https://github.com/bitcoin/bitcoin/pull/18677#discussion_r409934309 that it would be inconsistent to switch to non-SDK compilers while still using other SDK tools like `ranlib` and `install_name_tool`. So simplest, minimal fix seems to be just adding the missing `--sysroot` option.
ACKs for top commit:
ryanofsky:
> ACK [1e94a2b](1e94a2bcbc) - I think this change is ok, and I prefer it to the previous patch.
fanquake:
ACK 1e94a2bcbc5ff8ae61eed9f31317ea534649116d - I think this change is ok, and I prefer it to the previous patch. Thanks for the summary in the PR description. I played around with Xcode and the CLT; I think previously I didn't fully grok the slight differences between the two.
Tree-SHA512: 4d4bbb7f49acb76d934a872a15b4e14f36290b508cb9e728815f959767ec174bcfb6d2ca7dcd995cc550d86980d64d4247ea5ecfca2301f0953006e50744fdb4
63c74d2d3abcb685c773c3ad1414da6ad062a55d build: Remove illegal spacing in darwin.mk (Jon Layton)
Pull request description:
MacOS 10.13.6, `make -v` = `GNU Make 4.2.1 Built for x86_64-apple-darwin17.7.0`
```
cd depends
make HOST=x86_64-apple-darwin17.7.0
```
Results in error:
```
builders/darwin.mk:1: *** empty variable name. Stop.
```
This seems to fix it.
Tree-SHA512: 3481b9418571186c123942dc95b12bcaf47acbe2099ddd4524f5bb9dfe203175d7252bb7a1aa8ca5fec82578beeacfa06299472cb9d0d627c61f09486d74756c
a0daea459cf4812fbdda9a7ead131a73f5856c09 [build] depends macOS: point --sysroot to SDK (Sjors Provoost)
Pull request description:
Fixes errors like `fatal error: 'unistd.h' file not found` when building depends on macOS.
Replaces #14352 (which doesn't work on Catalina).
ACKs for top commit:
jonasschnelli:
utACK a0daea459cf4812fbdda9a7ead131a73f5856c09
Tree-SHA512: 995b1e1e84e635b32d1d4038bc63730c94a7c318b7240f6d62825977e5c97fe52c5aa5a0f39070beb0df8271dd294b36d6b5cf7f09ad07494fb15d5bd4d77f68
* Retry downloading of depends sources 3 times
* Manually invoke apt-get update and install instead of using addon
This allows us to use travis_retry on these operations.
* Add exception for depends/Makefile in .gitignore
* Remove --retry from curl call
This avoids future confusion as we don't rely on curl anymore to properly
retry downloads. curls does only retry on transient errors, while Travis
might cause all kinds of errors which circumvent the retry logic of curl.
