fanquake 5567754087
depends: build libevent with -D_GNU_SOURCE
Currently, builds of libevent in depends, using CMake, fail on some
systems, like Alpine, with the following:
```bash
/bitcoin/depends/work/build/aarch64-unknown-linux-musl/libevent/2.1.12-stable-1516ed47ea8/evmap.c: In function 'evmap_signal_add_':
/bitcoin/depends/work/build/aarch64-unknown-linux-musl/libevent/2.1.12-stable-1516ed47ea8/evmap.c:456:31: error: 'NSIG' undeclared (first use in this function)
  456 |         if (sig < 0 || sig >= NSIG)
```

From what I can tell the `_GNU_SOURCE` "detection" in libevents CMake build
system, never? really worked, and it's not clear what a nice fix is.

For now, always use `_GNU_SOURCE` when building libevent in depends.
2024-09-03 10:16:52 +01:00
..
2024-06-03 09:49:34 +01:00
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2024-08-16 21:19:11 +01:00
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2024-04-19 13:01:09 +01:00