From c87979a7db37d6f002e1dc3ad47ce25728ed00e9 Mon Sep 17 00:00:00 2001
From: Gerhard Rieger <gerhard@dest-unreach.org>
Date: Wed, 1 Apr 2015 15:48:28 +0200
Subject: [PATCH] Corrected some configure --disable

---
 CHANGES  | 4 ++++
 compat.h | 4 +++-
 hostan.c | 4 ++--
 xio.h    | 8 +++++---
 4 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/CHANGES b/CHANGES
index 154ed14..17d853a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -181,6 +181,10 @@ corrections:
 	to a random port instead of terminating with error.
 	Test: TCP4_NOPORT
 
+	configure with some combination of disable options produced config
+	files that failed to compile due to missing IPPROTO_TCP.
+	Thanks to Thierry Fournier for report and patch.
+
 porting:
 	Red Hat issue 1020203: configure checks fail with some compilers.
 	Use case: clang
diff --git a/compat.h b/compat.h
index 6051450..6eb17a1 100644
--- a/compat.h
+++ b/compat.h
@@ -76,7 +76,9 @@ typedef int sig_atomic_t;
 
 /* SOL_TCP: AIX 4.3.3 */
 #ifndef SOL_TCP
-#  define SOL_TCP IPPROTO_TCP
+#  ifdef IPPROTO_TCP
+#     define SOL_TCP IPPROTO_TCP
+#  endif
 #endif
 
 /* POSIX.1 doesn't seem to know sockets */
diff --git a/hostan.c b/hostan.c
index 5391fcb..9487ef0 100644
--- a/hostan.c
+++ b/hostan.c
@@ -37,14 +37,14 @@ int hostan(FILE *outfile) {
    fprintf(outfile, "((struct diag_dgram *)0)->now-((struct diag_dgram *)0)     = %u\n", (unsigned int)((char *)(&((struct diag_dgram *)0)->now)-(char *)((struct diag_dgram *)0)));
    fprintf(outfile, "((struct diag_dgram *)0)->exitcode-((struct diag_dgram *)0)     = %u\n", (unsigned int)((char *)(&((struct diag_dgram *)0)->exitcode)-(char *)((struct diag_dgram *)0)));
    fprintf(outfile, "((struct diag_dgram *)0)->text-((struct diag_dgram *)0)     = %u\n", (unsigned int)((((struct diag_dgram *)0)->text)-(char *)((struct diag_dgram *)0)));
-#if _WITH_SOCKET
+#if _WITH_SOCKET && (_WITH_IP4 || _WITH_IP6)
    fprintf(outfile, "\nIP INTERFACES\n");
    iffan(outfile);
 #endif
    return 0;
 }
 
-#if _WITH_SOCKET
+#if _WITH_SOCKET && (_WITH_IP4 || _WITH_IP6)
 static int iffan(FILE *outfile) {
    /* Linux: man 7 netdevice */
    /* FreeBSD, NetBSD: man 4 networking */
diff --git a/xio.h b/xio.h
index 56caf95..187010d 100644
--- a/xio.h
+++ b/xio.h
@@ -1,5 +1,5 @@
 /* source: xio.h */
-/* Copyright Gerhard Rieger 2001-2012 */
+/* Copyright Gerhard Rieger */
 /* Published under the GNU General Public License V.2, see file COPYING */
 
 #ifndef __xio_h_included
@@ -394,10 +394,12 @@ typedef struct single {
 	    char    *hosts_deny_table;
 #endif
 	 } ip;
-	 struct {
+#endif /* _WITH_IP4 || _WITH_IP6 */
+#if WITH_UNIX
+ 	 struct {
 	    bool     tight;
 	 } un;
-#endif /* _WITH_IP4 || _WITH_IP6 */
+#endif /* WITH_UNIX */
       } socket;
 #endif /* _WITH_SOCKET */
       struct {