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-rw-r--r--src/s/freebsd.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/s/freebsd.h b/src/s/freebsd.h
index b25e0f85d6f..e0bde6f1d24 100644
--- a/src/s/freebsd.h
+++ b/src/s/freebsd.h
@@ -194,3 +194,8 @@
buffer text. This overrides REL_ALLOC. */
#define USE_MMAP_FOR_BUFFERS 1
+
+/* Use sigprocmask(2) and friends instead of sigblock(2); the man page
+ of sigblock says it is obsolete. */
+
+#define POSIX_SIGNALS 1