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-rw-r--r--src/sysdeps/tryppoll.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/sysdeps/tryppoll.c b/src/sysdeps/tryppoll.c
index 1502f2c..18f7615 100644
--- a/src/sysdeps/tryppoll.c
+++ b/src/sysdeps/tryppoll.c
@@ -1,9 +1,20 @@
 /* ISC license. */
 
+#undef _POSIX_C_SOURCE
+#undef _XOPEN_SOURCE
+
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE
+#endif
+
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE
 #endif
 
+#ifndef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE
+#endif
+
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <time.h>