Fixed build with MinGW (#8)

* Fixed build with MinGW

* improved typedef check for MinGW

* added include dir to enet lib

CMakeLists.txt

@@ -19,6 +19,10 @@ check_struct_has_member("struct msghdr" "msg_flags" "sys/types.h;sys/socket.h" H
 set(CMAKE_EXTRA_INCLUDE_FILES "sys/types.h" "sys/socket.h")
 check_type_size("socklen_t" HAS_SOCKLEN_T BUILTIN_TYPES_ONLY)
 unset(CMAKE_EXTRA_INCLUDE_FILES)
+set(CMAKE_EXTRA_INCLUDE_FILES "qos2.h")
+check_type_size("QOS_FLOWID" HAS_QOS_FLOWID BUILTIN_TYPES_ONLY)
+check_type_size("PQOS_FLOWID" HAS_PQOS_FLOWID BUILTIN_TYPES_ONLY)
+unset(CMAKE_EXTRA_INCLUDE_FILES)
 if(MSVC)
 	add_definitions(-W3)
 else()
@@ -58,6 +62,12 @@ endif()
 if(HAS_SOCKLEN_T)
     add_definitions(-DHAS_SOCKLEN_T=1)
 endif()
+if(HAS_QOS_FLOWID)
+    add_definitions(-DHAS_QOS_FLOWID=1)
+endif()
+if(HAS_PQOS_FLOWID)
+    add_definitions(-DHAS_PQOS_FLOWID=1)
+endif()
 
 include_directories(${PROJECT_SOURCE_DIR}/include)
 
@@ -92,6 +102,7 @@ add_library(enet STATIC
     ${INCLUDE_FILES}
     ${SOURCE_FILES}
 )
+target_include_directories(enet SYSTEM PUBLIC include)
 
 if (MINGW)
     target_link_libraries(enet winmm ws2_32)

win32.c

@@ -7,8 +7,17 @@
 #define ENET_BUILDING_LIB 1
 #include "enet/enet.h"
 #include <windows.h>
+#ifndef HAS_QOS_FLOWID
+typedef UINT32 QOS_FLOWID;
+#endif
+#ifndef HAS_PQOS_FLOWID
+typedef UINT32 *PQOS_FLOWID;
+#endif
 #include <mmsystem.h>
 #include <qos2.h>
+#ifndef QOS_NON_ADAPTIVE_FLOW
+#define QOS_NON_ADAPTIVE_FLOW 0x00000002
+#endif
 
 static enet_uint32 timeBase = 0;
 static HANDLE qosHandle = INVALID_HANDLE_VALUE;