buildroot

Use the official _BSD_SOURCE feature test macro instead of the meaningless

HAVE_STRSEP macro in order to detect the availability of strsep().

​

This allows toolchains supporting strsep() to use it instead of the custom

implementation from dhcpdump, which also avoids the following error with some

toolchains:

​

    In file included from dhcpdump.c:30:0:

    dhcpdump.c: At top level:

    strsep.c:65:23: error: register name not specified for ‘delim’

      register const char *delim;

                           ^

​

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>

​

diff -Nrdup dhcpdump-1.8.orig/dhcpdump.c dhcpdump-1.8/dhcpdump.c

--- dhcpdump-1.8.orig/dhcpdump.c    2008-06-24 05:26:52.000000000 +0200

+++ dhcpdump-1.8/dhcpdump.c 2011-05-31 19:22:15.987388498 +0200

@@ -26,7 +26,7 @@

 #include <regex.h>

 #include "dhcp_options.h"

-#ifndef HAVE_STRSEP

+#ifndef _BSD_SOURCE

 #include "strsep.c"

 #endif