From 46000e498262feded366290aa16746218b013370 Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Tue, 26 Aug 2014 14:50:53 +0200
Subject: [PATCH] start of a windows compatibility layer

---
 compat/windows/include/arpa/inet.h  |  1 +
 compat/windows/include/net/if.h     |  1 +
 compat/windows/include/netinet/in.h |  1 +
 compat/windows/include/sys/ioctl.h  |  1 +
 compat/windows/include/sys/poll.h   |  1 +
 compat/windows/include/sys/select.h |  1 +
 compat/windows/include/sys/socket.h |  1 +
 compat/windows/wincompat.h          | 12 ++++++++++++
 configure.ac                        |  4 ++++
 src/Makefile.am                     |  4 ++++
 10 files changed, 27 insertions(+)
 create mode 100644 compat/windows/include/arpa/inet.h
 create mode 100644 compat/windows/include/net/if.h
 create mode 100644 compat/windows/include/netinet/in.h
 create mode 100644 compat/windows/include/sys/ioctl.h
 create mode 100644 compat/windows/include/sys/poll.h
 create mode 100644 compat/windows/include/sys/select.h
 create mode 100644 compat/windows/include/sys/socket.h
 create mode 100644 compat/windows/wincompat.h

diff --git a/compat/windows/include/arpa/inet.h b/compat/windows/include/arpa/inet.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/arpa/inet.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/include/net/if.h b/compat/windows/include/net/if.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/net/if.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/include/netinet/in.h b/compat/windows/include/netinet/in.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/netinet/in.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/include/sys/ioctl.h b/compat/windows/include/sys/ioctl.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/sys/ioctl.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/include/sys/poll.h b/compat/windows/include/sys/poll.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/sys/poll.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/include/sys/select.h b/compat/windows/include/sys/select.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/sys/select.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/include/sys/socket.h b/compat/windows/include/sys/socket.h
new file mode 100644
index 0000000..cc77ee8
--- /dev/null
+++ b/compat/windows/include/sys/socket.h
@@ -0,0 +1 @@
+#include "../../wincompat.h"
diff --git a/compat/windows/wincompat.h b/compat/windows/wincompat.h
new file mode 100644
index 0000000..37ba883
--- /dev/null
+++ b/compat/windows/wincompat.h
@@ -0,0 +1,12 @@
+#ifndef foowincompatfoo
+#define foowincompatfoo
+
+#undef WINVER
+#undef _WIN32_WINNT
+
+#define WINVER 0x0600       // Vista
+#define _WIN32_WINNT WINVER
+
+#include <winsock2.h>
+
+#endif
diff --git a/configure.ac b/configure.ac
index 5925560..7a7dc40 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,6 +55,10 @@ if test x"$ac_cv_prog_cc_c99" = x"no"; then
     AC_MSG_ERROR([C99 support is required])
 fi
 
+# Windows stuff
+AC_CHECK_DECL(_WIN32)
+AM_CONDITIONAL([WINDOWS], [ test "x$ac_cv_have_decl__WIN32" = "xyes" ])
+
 # -fstack-protector
 AC_ARG_ENABLE([stack-protector],
     [AS_HELP_STRING([--disable-stack-protector],
diff --git a/src/Makefile.am b/src/Makefile.am
index 236f951..ebc34c1 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -17,6 +17,10 @@
 
 AM_CFLAGS=-I$(top_srcdir)/include
 
+if WINDOWS
+AM_CFLAGS += -I$(top_srcdir)/compat/windows/include
+endif
+
 # This cool debug trap works on i386/gcc only
 AM_CFLAGS+='-DDEBUG_TRAP=__asm__("int $$3")'
 
-- 
2.39.2