Merge branch 'fix-no-sdl-build' into 'next'

Fix build errors when building without SDL

See merge request STJr/SRB2!2062

src/Sourcefile

@@ -83,6 +83,7 @@ i_tcp.c
 lzf.c
 vid_copy.s
 b_bot.c
+u_list.c
 lua_script.c
 lua_baselib.c
 lua_mathlib.c

src/d_netcmd.c

@@ -49,7 +49,7 @@
 #include "m_anigif.h"
 #include "md5.h"
 #include "m_perfstats.h"
-#include "hardware/u_list.h" // TODO: this should be a standard utility class
+#include "u_list.h"
 
 #ifdef NETGAME_DEVMODE
 #define CV_RESTRICT CV_NETVAR

src/dummy/i_video.c

@@ -57,6 +57,8 @@ const char *VID_GetModeName(INT32 modenum)
 	return NULL;
 }
 
+UINT32 I_GetRefreshRate(void) { return 35; }
+
 void I_UpdateNoBlit(void){}
 
 void I_FinishUpdate(void){}

src/hardware/Sourcefile

@@ -8,6 +8,5 @@ hw_cache.c
 hw_md2load.c
 hw_md3load.c
 hw_model.c
-u_list.c
 hw_batching.c
 r_opengl/r_opengl.c

src/hardware/hw_model.c

@@ -15,7 +15,7 @@
 #include "hw_md2load.h"
 #include "hw_md3load.h"
 #include "hw_md2.h"
-#include "u_list.h"
+#include "../u_list.h"
 #include <string.h>
 
 static float PI = (3.1415926535897932384626433832795f);

src/sdl/Srb2SDL-vc10.vcxproj

@@ -259,7 +259,7 @@
     <ClInclude Include="..\hardware\hw_md2load.h" />
     <ClInclude Include="..\hardware\hw_md3load.h" />
     <ClInclude Include="..\hardware\hw_model.h" />
-    <ClInclude Include="..\hardware\u_list.h" />
+    <ClInclude Include="..\u_list.h" />
     <ClInclude Include="..\hu_stuff.h" />
     <ClInclude Include="..\info.h" />
     <ClInclude Include="..\i_addrinfo.h" />
@@ -424,7 +424,7 @@
     <ClCompile Include="..\hardware\hw_md3load.c" />
     <ClCompile Include="..\hardware\hw_model.c" />
     <ClCompile Include="..\hardware\r_opengl\r_opengl.c" />
-    <ClCompile Include="..\hardware\u_list.c" />
+    <ClCompile Include="..\u_list.c" />
     <ClCompile Include="..\hu_stuff.c" />
     <ClCompile Include="..\info.c" />
     <ClCompile Include="..\i_addrinfo.c">
@@ -556,4 +556,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

src/u_list.c

@@ -8,7 +8,7 @@
 */
 
 #include "u_list.h"
-#include "../z_zone.h"
+#include "z_zone.h"
 
 // Utility for managing
 // structures in a linked