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-rw-r--r--src/3rdparty/forkfd/forkfd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/3rdparty/forkfd/forkfd.c b/src/3rdparty/forkfd/forkfd.c
index e55ef47683..3bf7fc3deb 100644
--- a/src/3rdparty/forkfd/forkfd.c
+++ b/src/3rdparty/forkfd/forkfd.c
@@ -61,6 +61,9 @@
#if _POSIX_VERSION-0 >= 200809L || _XOPEN_VERSION-0 >= 500
# define HAVE_WAITID 1
#endif
+#if !defined(WEXITED) || !defined(WNOWAIT)
+# undef HAVE_WAITID
+#endif
#if defined(__FreeBSD__)
# define HAVE_PIPE2 1