1 files changed, 4 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index f85adbf..9b507f4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
 PW_SHA256 := 7361c87eb5e55240a3afbf7f41bc2a08f93e392414103075d3929b5fd53e021c
+DARWIN = $(findstring Darwin,$(shell uname))
 NEEDED_CFLAGS := -std=c99 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__
+NEEDED_CFLAGS += $(if $(DARWIN),-D_DARWIN_C_SOURCE)
 ifeq ($(shell sha256sum pw.c),$(PW_SHA256)  pw.c)
 PW_VERSION := 3
 else
@@ -11,8 +13,8 @@ override CFLAGS += $(NEEDED_CFLAGS) -DCONFIG_PW_VER=\"$(PW_VERSION)\"
 DESTDIR ?= /usr/local
 .PHONY: all fixver
 all: pw fixver
-pw:
-clean:; rm -f pw
+pw: $(if $(DARWIN),macpoll.o)
+clean:; rm -f pw macpoll.o
 install:; install pw $(DESTDIR)/bin/pw; \
           install -D pw.1 $(DESTDIR)/share/man/man1/pw.1; \
           install -D pw-relnotes.5 $(DESTDIR)/share/man/man5/pw-relnotes.5