[PATCH] Fix compilation with FreeRdp 1.1 and master v2

[Hardening]

The API to use remoteFx encoding has changed between master and stable 1.1
branch. This patch should fix compilation for both.
This new version adds checks for the freerdp/version.h file
---
 configure.ac         |  5 +++++
 src/compositor-rdp.c | 12 ++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/configure.ac b/configure.ac
index 571bf60..d66dbec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -204,6 +204,11 @@ AM_CONDITIONAL([ENABLE_RDP_COMPOSITOR],
 if test x$enable_rdp_compositor = xyes; then
   AC_DEFINE([BUILD_RDP_COMPOSITOR], [1], [Build the RDP compositor])
   PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0])
+
+  SAVED_CPPFLAGS="$CPPFLAGS"
+  CPPFLAGS="$CPPFLAGS $RDP_COMPOSITOR_CFLAGS"
+  AC_CHECK_HEADERS([freerdp/version.h])
+  CPPFLAGS="$SAVED_CPPFLAGS"
 fi
 
 AC_ARG_WITH(cairo,
diff --git a/src/compositor-rdp.c b/src/compositor-rdp.c
index b9c36cf..7f6ce28 100644
--- a/src/compositor-rdp.c
+++ b/src/compositor-rdp.c
@@ -27,6 +27,14 @@
 #include <errno.h>
 #include <linux/input.h>
 
+#if HAVE_FREERDP_VERSION_H
+#include <freerdp/version.h>
+#else
+// assume it's a early 1.1 version
+#define FREERDP_MAJOR 1
+#define FREERDP_MINOR 1
+#endif
+
 #include <freerdp/freerdp.h>
 #include <freerdp/listener.h>
 #include <freerdp/update.h>
@@ -571,7 +579,11 @@ rdp_peer_context_new(freerdp_peer* client, RdpPeerContext* context)
 	context->item.peer = client;
 	context->item.flags = RDP_PEER_OUTPUT_ENABLED;
 
+#if FREERDP_VERSION_MAJOR == 1 && FREERDP_VERSION_MINOR == 1
 	context->rfx_context = rfx_context_new();
+#else
+	context->rfx_context = rfx_context_new(TRUE);
+#endif
 	context->rfx_context->mode = RLGR3;
 	context->rfx_context->width = client->settings->DesktopWidth;
 	context->rfx_context->height = client->settings->DesktopHeight;
-- 
1.8.1.2