| 18 Jul 2025 |
 emily | yes, it just means we're always setting a "useless" thing | 20:47:13 |
| emily | like the PKG_CONFIG_[buildPlatform] var is never useful | 20:47:24 |
| emily | it might also mean we need to set PKG_CONFIG | 20:47:46 |
 dramforever | i don't think it's cleaner to leave that out? | 20:47:48 |
| emily | or HOST_PKG_CONFIG or whatever | 20:47:49 |
| dramforever | so, whatever | 20:47:51 |
| emily | because it looks for a relevant var when doing cross | 20:47:57 |
| emily | but the logic is kind of tangled | 20:48:02 |
| emily | let kind = if host == target { "HOST" } else { "TARGET" };
it's wonderful that it does this for no apparent reason
| 20:48:18 |
| emily | I guess to handle the build script deps case | 20:48:26 |
| dramforever | what uses HOST_PKG_CONFIG | 20:48:29 |
| emily | so actually setting both should be fine… | 20:48:34 |
| dramforever | does build script dep even look like cross | 20:48:44 |
| emily | no, which is why ^ triggers | 20:48:53 |
| emily | here's the relevant pieces of code https://docs.rs/pkg-config/0.3.32/src/pkg_config/lib.rs.html#638-659, https://docs.rs/pkg-config/0.3.32/src/pkg_config/lib.rs.html#606-630, https://docs.rs/pkg-config/0.3.32/src/pkg_config/lib.rs.html#672-679 | 20:49:06 |
| emily | is it a sign of maturity in my cross-compilation journey that my typical reaction has gone from "I'm confused" to "the people who wrote this build logic are confused" | 20:49:48 |
| dramforever | to confuse your enemies you must first confuse yourself | 20:50:16 |
| dramforever | so is this for everything? or just for rust? | 20:50:44 |
| emily | we're just doing Rust here | 20:52:21 |
| emily | but we're setting it in the pkg-config hook to accommodate the Rust thing | 20:52:28 |
| emily | which uses variables nobody else does, for fun | 20:52:36 |
| emily | and I think assigns different semantics to them than others, for fun | 20:52:44 |
| dramforever | okay so HOST_PKG_CONFIG is just doing nothing...? | 20:52:49 |
| emily | well it's doing the same thing as PKG_CONFIG in non-cross builds | 20:53:03 |
| emily | for cross builds it's never used, I guess. | 20:53:11 |
| emily | or well | 20:53:21 |
| dramforever | ah | 20:53:22 |
| emily | it's used in the build scripts | 20:53:23 |
| emily | or, uh | 20:53:27 |
| emily | I mean, it's used when targeting … augh | 20:53:35 |
