--- Makefile.am.bak	2021-02-14 04:57:24.000000000 +1100
+++ Makefile.am	2021-07-10 10:01:08.729872000 +1000
@@ -430,6 +430,17 @@
 test_run_tests_LDFLAGS += -lutil
 endif
 
+if BSDSUNIX
+uvinclude_HEADERS += include/uv/bsd.h
+libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
+                    src/unix/bsd-proctitle.c \
+                    src/unix/bsdsunix.c \
+                    src/unix/kqueue.c \
+                    src/unix/posix-hrtime.c \
+                    src/unix/random-getrandom.c
+test_run_tests_LDFLAGS += -lutil
+endif
+
 if FREEBSD
 uvinclude_HEADERS += include/uv/bsd.h
 libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \