diff --git a/common.mk b/common.mk
index 05b10611..ce41f287 100644
--- a/common.mk
+++ b/common.mk
@@ -71,7 +71,11 @@ LIBS += $(call ldflags_for_lib, x11, X11)
 LIBS += $(call ldflags_for_lib, yajl, yajl)
 LIBS += $(call ldflags_for_lib, libev, ev)
 
+# Please test if -Wl,--as-needed works on your platform and send me a patch.
+# it is known not to work on Darwin (Mac OS X)
+ifneq (,$(filter Linux GNU GNU/%, $(UNAME)))
 LDFLAGS += -Wl,--as-needed
+endif
 
 ifeq ($(UNAME),NetBSD)
 # We need -idirafter instead of -I to prefer the system’s iconv over GNU libiconv
diff --git a/i3bar/doc/Makefile b/i3bar/doc/Makefile
index a8144cd8..69566750 100644
--- a/i3bar/doc/Makefile
+++ b/i3bar/doc/Makefile
@@ -2,7 +2,7 @@ all: i3bar.1
 
 i3bar.1: i3bar.man
 	echo "A2X i3bar"
-	a2x -f manpage i3bar.man
+	a2x --no-xmllint -f manpage i3bar.man
 clean:
 	rm -f i3bar.xml i3bar.1 i3bar.html
 
diff --git a/i3bar/src/ipc.c b/i3bar/src/ipc.c
index 85cd234f..7769fdb1 100644
--- a/i3bar/src/ipc.c
+++ b/i3bar/src/ipc.c
@@ -12,6 +12,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <stdint.h>
+#include <string.h>
 #include <errno.h>
 #include <sys/socket.h>
 #include <sys/un.h>
diff --git a/i3bar/src/xcb.c b/i3bar/src/xcb.c
index 62160f40..b8ab5ed2 100644
--- a/i3bar/src/xcb.c
+++ b/i3bar/src/xcb.c
@@ -27,6 +27,30 @@
 
 #include "common.h"
 
+#if defined(__APPLE__)
+
+/*
+ * Taken from FreeBSD
+ * Returns a pointer to a new string which is a duplicate of the
+ * string, but only copies at most n characters.
+ *
+ */
+char *strndup(const char *str, size_t n) {
+    size_t len;
+    char *copy;
+
+    for (len = 0; len < n && str[len]; len++)
+        continue;
+
+    if ((copy = malloc(len + 1)) == NULL)
+        return (NULL);
+    memcpy(copy, str, len);
+    copy[len] = '\0';
+    return (copy);
+}
+
+#endif
+
 /* We save the Atoms in an easy to access array, indexed by an enum */
 enum {
     #define ATOM_DO(name) name,