[LWIP]

* Introduce a PCH suitable for use without altering the 3rd party code.
* Prepare the CMake scripts for PCH.
CORE-7716

svn path=/trunk/; revision=62122

reactos/lib/drivers/lwip/CMakeLists.txt

@@ -54,10 +54,12 @@ list(APPEND SOURCE
     src/core/snmp/mib_structs.c
     src/core/snmp/mib2.c
     src/core/snmp/msg_in.c
-    src/core/snmp/msg_out.c)
+    src/core/snmp/msg_out.c
+    precomp.h)
 
 add_library(lwip ${SOURCE})
 add_dependencies(lwip bugcodes)
+add_pch(lwip precomp.h SOURCE)
 if(NOT MSVC)
     allow_warnings(lwip)
     if(LTCG)

reactos/lib/drivers/lwip/precomp.h

@@ -0,0 +1,6 @@
+#ifndef _LWIP_PCH_
+#define _LWIP_PCH_
+
+#include "src/include/lwip/opt.h"
+
+#endif /* _LWIP_PCH_ */