patch 9.0.1544: recent glibc marks sigset() as a deprecated
Problem: Recent glibc marks sigset() as a deprecated.
Solution: Use sigaction() in mch_signal() if possible. (Ozaki Kiichi,
closes #12373)
diff --git a/src/main.c b/src/main.c
index 72af241..476d869 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1557,7 +1557,7 @@
// Ignore SIGHUP, because a dropped connection causes a read error, which
// makes Vim exit and then handling SIGHUP causes various reentrance
// problems.
- signal(SIGHUP, SIG_IGN);
+ mch_signal(SIGHUP, SIG_IGN);
# endif
ml_close_notmod(); // close all not-modified buffers