Fix OpenFlow compilation with modern GCC/glibc and improve install.sh -fw support

util/openflow-patches/gcc-glibc.patch

@@ -0,0 +1,88 @@
+diff --git a/lib/backtrace.c b/lib/backtrace.c
+index 5b61ffe..f77e489 100644
+--- a/lib/backtrace.c
++++ b/lib/backtrace.c
+@@ -123,6 +123,6 @@ backtrace_capture(struct backtrace *bt)
+     }
+     bt->n_frames = n;
+ #else
+-    bt->n_frames = backtrace(bt->frames, BACKTRACE_MAX_FRAMES);
++    bt->n_frames = backtrace((void **)bt->frames, BACKTRACE_MAX_FRAMES);
+ #endif
+ }
+diff --git a/lib/flow.c b/lib/flow.c
+index 523eff0..4a1bf7b 100644
+--- a/lib/flow.c
++++ b/lib/flow.c
+@@ -44,11 +44,10 @@
+ #include "vlog.h"
+ #define THIS_MODULE VLM_flow
+ 
+-static struct arp_header *
++static struct arp_eth_header *
+ pull_arp(struct ofpbuf *packet)
+ {
+     if (packet->size >= ARP_ETH_HEADER_LEN) {
+-        struct arp_eth_header *arp = packet->data;
+         return ofpbuf_pull(packet, ARP_ETH_HEADER_LEN);
+     }
+     return NULL;
+diff --git a/lib/socket-util.c b/lib/socket-util.c
+index c7b5d6d..5b3d602 100644
+--- a/lib/socket-util.c
++++ b/lib/socket-util.c
+@@ -42,6 +42,7 @@
+ #include <stdio.h>
+ #include <string.h>
+ #include <sys/resource.h>
++#include <sys/stat.h>
+ #include <sys/un.h>
+ #include <unistd.h>
+ #include "fatal-signal.h"
+diff --git a/lib/stp.c b/lib/stp.c
+index b638311..b81ae53 100644
+--- a/lib/stp.c
++++ b/lib/stp.c
+@@ -34,6 +34,7 @@
+ /* Based on sample implementation in 802.1D-1998.  Above copyright and license
+  * applies to all modifications. */
+ 
++#include <config.h>
+ #include "stp.h"
+ #include <arpa/inet.h>
+ #include <assert.h>
+diff --git a/lib/util.c b/lib/util.c
+index 21cc28d..1f341b1 100644
+--- a/lib/util.c
++++ b/lib/util.c
+@@ -138,6 +138,7 @@ xasprintf(const char *format, ...)
+     return s;
+ }
+ 
++#ifndef HAVE_STRLCPY
+ void
+ strlcpy(char *dst, const char *src, size_t size)
+ {
+@@ -148,6 +149,7 @@ strlcpy(char *dst, const char *src, size_t size)
+         dst[n_copy] = '\0';
+     }
+ }
++#endif
+ 
+ void
+ ofp_fatal(int err_no, const char *format, ...)
+diff --git a/lib/util.h b/lib/util.h
+index fde681f..dc4e71f 100644
+--- a/lib/util.h
++++ b/lib/util.h
+@@ -34,6 +34,10 @@
+ #ifndef UTIL_H
+ #define UTIL_H 1
+ 
++#if HAVE_CONFIG_H
++#include <config.h>
++#endif
++
+ #include <stdarg.h>
+ #include <stdbool.h>
+ #include <stddef.h>