Ryan Cumming 090a968fe7 Only link res_init() on GNU/*nix ...

To workaround a bug in glibc <= 2.26 lookup_host() calls res_init()
based on the glibc version detected at runtime. While this avoids
calling res_init() on platforms where it's not required we will still
end up linking against the symbol.

This causes an issue on macOS where res_init() is implemented in a
separate library (libresolv.9.dylib) from the main libc. While this is
harmless for standalone programs it becomes a problem if Rust code is
statically linked against another program. If the linked program doesn't
already specify -lresolv it will cause the link to fail. This is
captured in issue #46797

Fix this by hooking in to the glibc workaround in `cvt_gai` and only
activating it for the "gnu" environment on Unix This should include all
glibc platforms while excluding musl, windows-gnu, macOS, FreeBSD, etc.

This has the side benefit of removing the #[cfg] in sys_common; only
unix.rs has code related to the workaround now.

2018-01-16 06:30:44 +11:00

..

gnu

fix some errors in libstd

2017-12-22 12:40:39 -05:00

at_exit_imp.rs

std: Move sys_common to libstd/sys_common

2016-11-01 17:08:24 +00:00

backtrace.rs

Change name of lang_start_real to lang_start_internal

2017-12-26 12:26:39 +01:00

bytestring.rs

Add lossless debug implementation for unix OsStrs

2017-12-18 01:52:56 +00:00

condvar.rs

std: Move sys_common to libstd/sys_common

2016-11-01 17:08:24 +00:00

io.rs

Add Read::initializer.

2017-06-20 20:26:22 -07:00

mod.rs

Add shims for modules that we can't implement on CloudABI.

2018-01-11 11:26:13 +01:00

mutex.rs

std: Move sys_common to libstd/sys_common

2016-11-01 17:08:24 +00:00

net.rs

Only link res_init() on GNU/*nix

2018-01-16 06:30:44 +11:00

poison.rs

Update miri to rustc changes

2017-12-06 09:25:29 +01:00

process.rs

Capture environment at spawn

2017-12-24 14:24:31 +00:00

remutex.rs

Update miri to rustc changes

2017-12-06 09:25:29 +01:00

rwlock.rs

std: Move sys_common to libstd/sys_common

2016-11-01 17:08:24 +00:00

thread_info.rs

use field init shorthand EVERYWHERE

2017-08-15 15:29:17 -07:00

thread_local.rs

Update miri to rustc changes

2017-12-06 09:25:29 +01:00

thread.rs

Update miri to rustc changes

2017-12-06 09:25:29 +01:00

util.rs

Move default stack min size to thread implementations

2017-09-13 10:56:41 +02:00

wtf8.rs

Capture environment at spawn

2017-12-24 14:24:31 +00:00