I don't know why it worked before, do you?
--- /dev/null
+diff --git a/pwdx.c b/pwdx.c
+index cb96a52..29ebce2 100644
+--- a/pwdx.c
++++ b/pwdx.c
+@@ -13,7 +13,7 @@
+ #include <stdlib.h>
+ #include <sys/types.h>
+ #include <regex.h>
+-#include <limits.h>
++#include <linux/limits.h>
+ #include <unistd.h>
+ #include <errno.h>
+
PR = "r5"
SRC_URI += "file://procmodule.patch;patch=1 \
- file://psmodule.patch;patch=1"
+ file://psmodule.patch;patch=1 \
+ file://linux-limits.patch;patch=1"
FILES = "${bindir}/top.${PN} ${base_bindir}/ps.${PN} ${bindir}/uptime.${PN} ${base_bindir}/kill.${PN} \
${bindir}/free.${PN} ${bindir}/w ${bindir}/watch ${bindir}/pgrep ${bindir}/pmap ${bindir}/pwdx \