diff --git a/src/byteptr.h b/src/byteptr.h
index 410d7c004..364e6520c 100644
--- a/src/byteptr.h
+++ b/src/byteptr.h
@@ -15,7 +15,9 @@
 #define DEALIGNED
 #endif
 
-#ifndef _BIG_ENDIAN
+#include "endian.h"
+
+#ifndef SRB2_BIG_ENDIAN
 //
 // Little-endian machines
 //
@@ -75,7 +77,7 @@
 #define READANGLE(p)        *((angle_t *)p)++
 #endif
 
-#else //_BIG_ENDIAN
+#else //SRB2_BIG_ENDIAN
 //
 // definitions for big-endian machines with alignment constraints.
 //
@@ -144,7 +146,7 @@ FUNCINLINE static ATTRINLINE UINT32 readulong(void *ptr)
 #define READCHAR(p)         ({    char *p_tmp = (   char *)p;    char b =        *p_tmp; p_tmp++; p = (void *)p_tmp; b; })
 #define READFIXED(p)        ({ fixed_t *p_tmp = (fixed_t *)p; fixed_t b =   readlong(p); p_tmp++; p = (void *)p_tmp; b; })
 #define READANGLE(p)        ({ angle_t *p_tmp = (angle_t *)p; angle_t b =  readulong(p); p_tmp++; p = (void *)p_tmp; b; })
-#endif //_BIG_ENDIAN
+#endif //SRB2_BIG_ENDIAN
 
 #undef DEALIGNED
 
diff --git a/src/command.c b/src/command.c
index 62431b664..10af3a576 100644
--- a/src/command.c
+++ b/src/command.c
@@ -63,6 +63,7 @@ CV_PossibleValue_t CV_Unsigned[] = {{0, "MIN"}, {999999999, "MAX"}, {0, NULL}};
 CV_PossibleValue_t CV_Natural[] = {{1, "MIN"}, {999999999, "MAX"}, {0, NULL}};
 
 #define COM_BUF_SIZE 8192 // command buffer size
+#define MAX_ALIAS_RECURSION 100 // max recursion allowed for aliases
 
 static INT32 com_wait; // one command per frame (for cmd sequences)
 
@@ -485,6 +486,7 @@ static void COM_ExecuteString(char *ptext)
 {
 	xcommand_t *cmd;
 	cmdalias_t *a;
+	static INT32 recursion = 0; // detects recursion and stops it if it goes too far
 
 	COM_TokenizeString(ptext);
 
@@ -497,6 +499,7 @@ static void COM_ExecuteString(char *ptext)
 	{
 		if (!stricmp(com_argv[0], cmd->name)) //case insensitive now that we have lower and uppercase!
 		{
+			recursion = 0;
 			cmd->function();
 			return;
 		}
@@ -507,11 +510,20 @@ static void COM_ExecuteString(char *ptext)
 	{
 		if (!stricmp(com_argv[0], a->name))
 		{
+			if (recursion > MAX_ALIAS_RECURSION)
+			{
+				CONS_Alert(CONS_WARNING, M_GetText("Alias recursion cycle detected!\n"));
+				recursion = 0;
+				return;
+			}
+			recursion++;
 			COM_BufInsertText(a->value);
 			return;
 		}
 	}
 
+	recursion = 0;
+
 	// check cvars
 	// Hurdler: added at Ebola's request ;)
 	// (don't flood the console in software mode with bad gr_xxx command)
diff --git a/src/d_main.c b/src/d_main.c
index 6cd6aaba6..605c3a677 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -151,7 +151,7 @@ void D_PostEvent(const event_t *ev)
 	eventhead = (eventhead+1) & (MAXEVENTS-1);
 }
 // just for lock this function
-#ifndef DOXYGEN
+#if defined (PC_DOS) && !defined (DOXYGEN)
 void D_PostEvent_end(void) {};
 #endif
 
@@ -766,10 +766,6 @@ static inline void D_CleanFile(void)
 	}
 }
 
-#ifndef _MAX_PATH
-#define _MAX_PATH MAX_WADPATH
-#endif
-
 // ==========================================================================
 // Identify the SRB2 version, and IWAD file to use.
 // ==========================================================================
diff --git a/src/d_main.h b/src/d_main.h
index d73b19d1f..4c9c99ea5 100644
--- a/src/d_main.h
+++ b/src/d_main.h
@@ -40,8 +40,8 @@ void D_SRB2Main(void);
 
 // Called by IO functions when input is detected.
 void D_PostEvent(const event_t *ev);
-#ifndef DOXYGEN
-FUNCMATH void D_PostEvent_end(void);    // delimiter for locking memory
+#if defined (PC_DOS) && !defined (DOXYGEN)
+void D_PostEvent_end(void);    // delimiter for locking memory
 #endif
 
 void D_ProcessEvents(void);
diff --git a/src/dehacked.c b/src/dehacked.c
index 2cbd833f7..729e96311 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -8307,7 +8307,7 @@ fixed_t get_number(const char *word)
 #endif
 }
 
-void FUNCMATH DEH_Check(void)
+void DEH_Check(void)
 {
 #if defined(_DEBUG) || defined(PARANOIA)
 	const size_t dehstates = sizeof(STATE_LIST)/sizeof(const char*);
diff --git a/src/doomdef.h b/src/doomdef.h
index b09aaa415..169fd713e 100644
--- a/src/doomdef.h
+++ b/src/doomdef.h
@@ -571,4 +571,11 @@ extern const char *compdate, *comptime, *comprevision, *compbranch;
 /// \note   Required for proper collision with moving sloped surfaces that have sector specials on them.
 #define SECTORSPECIALSAFTERTHINK
 
+/// FINALLY some real clipping that doesn't make walls dissappear AND speeds the game up
+/// (that was the original comment from SRB2CB, sadly it is a lie and actually slows game down)
+/// on the bright side it fixes some weird issues with translucent walls
+/// \note	SRB2CB port.
+///      	SRB2CB itself ported this from PrBoom+
+#define NEWCLIP
+
 #endif // __DOOMDEF__
diff --git a/src/doomtype.h b/src/doomtype.h
index b0623de9a..741b68c21 100644
--- a/src/doomtype.h
+++ b/src/doomtype.h
@@ -40,12 +40,13 @@
 typedef long ssize_t;
 
 /* Older Visual C++ headers don't have the Win64-compatible typedefs... */
-#if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR)))
-#define DWORD_PTR DWORD
-#endif
-
-#if ((_MSC_VER <= 1200) && (!defined(PDWORD_PTR)))
-#define PDWORD_PTR PDWORD
+#if (_MSC_VER <= 1200)
+	#ifndef DWORD_PTR
+		#define DWORD_PTR DWORD
+	#endif
+	#ifndef PDWORD_PTR
+		#define PDWORD_PTR PDWORD
+	#endif
 #endif
 #elif defined (__DJGPP__)
 #define UINT8 unsigned char
@@ -80,11 +81,13 @@ typedef long ssize_t;
 #define NOIPX
 #endif
 
+/* Strings and some misc platform specific stuff */
+
 #ifdef _MSC_VER
 	// Microsoft VisualC++
 #if (_MSC_VER <= 1800) // MSVC 2013 and back
 	#define snprintf                _snprintf
-#if (_MSC_VER <= 1200) // MSVC 2012 and back
+#if (_MSC_VER <= 1200) // MSVC 6.0 and back
 	#define vsnprintf               _vsnprintf
 #endif
 #endif
@@ -148,6 +151,8 @@ size_t strlcpy(char *dst, const char *src, size_t siz);
 // not the number of bytes in the buffer.
 #define STRBUFCPY(dst,src) strlcpy(dst, src, sizeof dst)
 
+/* Boolean type definition */
+
 // \note __BYTEBOOL__ used to be set above if "macintosh" was defined,
 // if macintosh's version of boolean type isn't needed anymore, then isn't this macro pointless now?
 #ifndef __BYTEBOOL__
@@ -155,7 +160,7 @@ size_t strlcpy(char *dst, const char *src, size_t siz);
 
 	//faB: clean that up !!
 	#if defined( _MSC_VER)  && (_MSC_VER >= 1800) // MSVC 2013 and forward
-	#include "stdbool.h"
+		#include "stdbool.h"
 	#elif defined (_WIN32)
 		#define false   FALSE           // use windows types
 		#define true    TRUE
@@ -205,89 +210,65 @@ size_t strlcpy(char *dst, const char *src, size_t siz);
 #define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */
 #endif
 
-union FColorRGBA
-{
-	UINT32 rgba;
-	struct
-	{
-		UINT8 red;
-		UINT8 green;
-		UINT8 blue;
-		UINT8 alpha;
-	} s;
-} ATTRPACK;
-typedef union FColorRGBA RGBA_t;
-
-typedef enum
-{
-	postimg_none,
-	postimg_water,
-	postimg_motion,
-	postimg_flip,
-	postimg_heat
-} postimg_t;
-
-typedef UINT32 lumpnum_t; // 16 : 16 unsigned long (wad num: lump num)
-#define LUMPERROR UINT32_MAX
-
-typedef UINT32 tic_t;
-#define INFTICS UINT32_MAX
-
-#ifdef _BIG_ENDIAN
-#define UINT2RGBA(a) a
-#else
-#define UINT2RGBA(a) (UINT32)((a&0xff)<<24)|((a&0xff00)<<8)|((a&0xff0000)>>8)|(((UINT32)a&0xff000000)>>24)
-#endif
+/* Compiler-specific attributes and other macros */
 
 #ifdef __GNUC__ // __attribute__ ((X))
-#define FUNCNORETURN __attribute__ ((noreturn))
-#if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) && defined (__MINGW32__)
-#include "inttypes.h"
-#if 0 //defined  (__USE_MINGW_ANSI_STDIO) && __USE_MINGW_ANSI_STDIO > 0
-#define FUNCPRINTF __attribute__ ((format(gnu_printf, 1, 2)))
-#define FUNCDEBUG  __attribute__ ((format(gnu_printf, 2, 3)))
-#define FUNCIERROR __attribute__ ((format(gnu_printf, 1, 2),noreturn))
-#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
-#define FUNCPRINTF __attribute__ ((format(ms_printf, 1, 2)))
-#define FUNCDEBUG  __attribute__ ((format(ms_printf, 2, 3)))
-#define FUNCIERROR __attribute__ ((format(ms_printf, 1, 2),noreturn))
-#else
-#define FUNCPRINTF __attribute__ ((format(printf, 1, 2)))
-#define FUNCDEBUG  __attribute__ ((format(printf, 2, 3)))
-#define FUNCIERROR __attribute__ ((format(printf, 1, 2),noreturn))
-#endif
-#else
-#define FUNCPRINTF __attribute__ ((format(printf, 1, 2)))
-#define FUNCDEBUG  __attribute__ ((format(printf, 2, 3)))
-#define FUNCIERROR __attribute__ ((format(printf, 1, 2),noreturn))
-#endif
-#ifndef FUNCIERROR
-#define FUNCIERROR __attribute__ ((noreturn))
-#endif
-#define FUNCMATH __attribute__((const))
-#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
-#define FUNCDEAD __attribute__ ((deprecated))
-#define FUNCINLINE __attribute__((always_inline))
-#define FUNCNONNULL __attribute__((nonnull))
-#endif
-#define FUNCNOINLINE __attribute__((noinline))
-#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
-#ifdef __i386__ // i386 only
-#define FUNCTARGET(X)  __attribute__ ((__target__ (X)))
-#endif
-#endif
-#if defined (__MINGW32__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-#define ATTRPACK __attribute__((packed, gcc_struct))
-#else
-#define ATTRPACK __attribute__((packed))
-#endif
-#define ATTRUNUSED __attribute__((unused))
+	#define FUNCNORETURN __attribute__ ((noreturn))
+
+	#if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) && defined (__MINGW32__) // MinGW, >= GCC 4.1
+		#include "inttypes.h"
+		#if 0 //defined  (__USE_MINGW_ANSI_STDIO) && __USE_MINGW_ANSI_STDIO > 0
+			#define FUNCPRINTF __attribute__ ((format(gnu_printf, 1, 2)))
+			#define FUNCDEBUG  __attribute__ ((format(gnu_printf, 2, 3)))
+			#define FUNCIERROR __attribute__ ((format(gnu_printf, 1, 2),noreturn))
+		#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) // >= GCC 4.4
+			#define FUNCPRINTF __attribute__ ((format(ms_printf, 1, 2)))
+			#define FUNCDEBUG  __attribute__ ((format(ms_printf, 2, 3)))
+			#define FUNCIERROR __attribute__ ((format(ms_printf, 1, 2),noreturn))
+		#else
+			#define FUNCPRINTF __attribute__ ((format(printf, 1, 2)))
+			#define FUNCDEBUG  __attribute__ ((format(printf, 2, 3)))
+			#define FUNCIERROR __attribute__ ((format(printf, 1, 2),noreturn))
+		#endif
+	#else
+		#define FUNCPRINTF __attribute__ ((format(printf, 1, 2)))
+		#define FUNCDEBUG  __attribute__ ((format(printf, 2, 3)))
+		#define FUNCIERROR __attribute__ ((format(printf, 1, 2),noreturn))
+	#endif
+
+	#ifndef FUNCIERROR
+		#define FUNCIERROR __attribute__ ((noreturn))
+	#endif
+
+	#define FUNCMATH __attribute__((const))
+
+	#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) // >= GCC 3.1
+		#define FUNCDEAD __attribute__ ((deprecated))
+		#define FUNCINLINE __attribute__((always_inline))
+		#define FUNCNONNULL __attribute__((nonnull))
+	#endif
+
+	#define FUNCNOINLINE __attribute__((noinline))
+
+	#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) // >= GCC 4.4
+		#ifdef __i386__ // i386 only
+			#define FUNCTARGET(X)  __attribute__ ((__target__ (X)))
+		#endif
+	#endif
+
+	#if defined (__MINGW32__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) // MinGW, >= GCC 3.4
+		#define ATTRPACK __attribute__((packed, gcc_struct))
+	#else
+		#define ATTRPACK __attribute__((packed))
+	#endif
+
+	#define ATTRUNUSED __attribute__((unused))
 #elif defined (_MSC_VER)
-#define ATTRNORETURN __declspec(noreturn)
-#define ATTRINLINE __forceinline
-#if _MSC_VER > 1200
-#define ATTRNOINLINE __declspec(noinline)
-#endif
+	#define ATTRNORETURN __declspec(noreturn)
+	#define ATTRINLINE __forceinline
+	#if _MSC_VER > 1200 // >= MSVC 6.0
+		#define ATTRNOINLINE __declspec(noinline)
+	#endif
 #endif
 
 #ifndef FUNCPRINTF
@@ -335,4 +316,43 @@ typedef UINT32 tic_t;
 #ifndef ATTRNOINLINE
 #define ATTRNOINLINE
 #endif
+
+/* Miscellaneous types that don't fit anywhere else (Can this be changed?) */
+
+union FColorRGBA
+{
+	UINT32 rgba;
+	struct
+	{
+		UINT8 red;
+		UINT8 green;
+		UINT8 blue;
+		UINT8 alpha;
+	} s;
+} ATTRPACK;
+typedef union FColorRGBA RGBA_t;
+
+typedef enum
+{
+	postimg_none,
+	postimg_water,
+	postimg_motion,
+	postimg_flip,
+	postimg_heat
+} postimg_t;
+
+typedef UINT32 lumpnum_t; // 16 : 16 unsigned long (wad num: lump num)
+#define LUMPERROR UINT32_MAX
+
+typedef UINT32 tic_t;
+#define INFTICS UINT32_MAX
+
+#include "endian.h" // This is needed to make sure the below macro acts correctly in big endian builds
+
+#ifdef SRB2_BIG_ENDIAN
+#define UINT2RGBA(a) a
+#else
+#define UINT2RGBA(a) (UINT32)((a&0xff)<<24)|((a&0xff00)<<8)|((a&0xff0000)>>8)|(((UINT32)a&0xff000000)>>24)
+#endif
+
 #endif //__DOOMTYPE__
diff --git a/src/f_finale.c b/src/f_finale.c
index 151889c4c..810a91c83 100644
--- a/src/f_finale.c
+++ b/src/f_finale.c
@@ -1414,6 +1414,7 @@ void F_StartGameEnd(void)
 //
 void F_GameEndDrawer(void)
 {
+	// this function does nothing
 }
 
 //
diff --git a/src/f_finale.h b/src/f_finale.h
index aadc64ad0..424c93023 100644
--- a/src/f_finale.h
+++ b/src/f_finale.h
@@ -35,7 +35,7 @@ void F_CutsceneTicker(void);
 void F_TitleDemoTicker(void);
 
 // Called by main loop.
-FUNCMATH void F_GameEndDrawer(void);
+void F_GameEndDrawer(void);
 void F_IntroDrawer(void);
 void F_TitleScreenDrawer(void);
 
diff --git a/src/hardware/hw_clip.c b/src/hardware/hw_clip.c
index fd6ba13f3..6d120efe7 100644
--- a/src/hardware/hw_clip.c
+++ b/src/hardware/hw_clip.c
@@ -338,7 +338,7 @@ angle_t gld_FrustumAngle(void)
 	}
 
 	// If the pitch is larger than this you can look all around at a FOV of 90
-	if (aimingangle > (ANGLE_45+ANG1) && (ANGLE_315-ANG1) > aimingangle)
+	if (abs((signed)aimingangle) > 46 * ANG1)
 		return 0xffffffff;
 
 	// ok, this is a gross hack that barely works...
diff --git a/src/hu_stuff.h b/src/hu_stuff.h
index 9e67e49b5..46906dd73 100644
--- a/src/hu_stuff.h
+++ b/src/hu_stuff.h
@@ -86,7 +86,7 @@ void HU_Init(void);
 void HU_LoadGraphics(void);
 
 // reset heads up when consoleplayer respawns.
-FUNCMATH void HU_Start(void);
+void HU_Start(void);
 
 boolean HU_Responder(event_t *ev);
 
diff --git a/src/p_mobj.h b/src/p_mobj.h
index 5c0408e1b..dd4da765d 100644
--- a/src/p_mobj.h
+++ b/src/p_mobj.h
@@ -453,7 +453,7 @@ boolean P_SupermanLook4Players(mobj_t *actor);
 void P_DestroyRobots(void);
 void P_SnowThinker(precipmobj_t *mobj);
 void P_RainThinker(precipmobj_t *mobj);
-FUNCMATH void P_NullPrecipThinker(precipmobj_t *mobj);
+void P_NullPrecipThinker(precipmobj_t *mobj);
 void P_RemovePrecipMobj(precipmobj_t *mobj);
 void P_SetScale(mobj_t *mobj, fixed_t newscale);
 void P_XYMovement(mobj_t *mo);
diff --git a/src/r_plane.h b/src/r_plane.h
index 16c8c12a4..dff58669a 100644
--- a/src/r_plane.h
+++ b/src/r_plane.h
@@ -87,7 +87,7 @@ extern lighttable_t **planezlight;
 extern fixed_t *yslope;
 extern fixed_t distscale[MAXVIDWIDTH];
 
-FUNCMATH void R_InitPlanes(void);
+void R_InitPlanes(void);
 void R_PortalStoreClipValues(INT32 start, INT32 end, INT16 *ceil, INT16 *floor, fixed_t *scale);
 void R_PortalRestoreClipValues(INT32 start, INT32 end, INT16 *ceil, INT16 *floor, fixed_t *scale);
 void R_ClearPlanes(void);
diff --git a/src/r_splats.h b/src/r_splats.h
index c0ba6881c..349d8fa7a 100644
--- a/src/r_splats.h
+++ b/src/r_splats.h
@@ -63,11 +63,7 @@ typedef struct floorsplat_s
 fixed_t P_SegLength(seg_t *seg);
 
 // call at P_SetupLevel()
-#if !(defined (WALLSPLATS) || defined (FLOORSPLATS))
-FUNCMATH void R_ClearLevelSplats(void);
-#else
 void R_ClearLevelSplats(void);
-#endif
 
 #ifdef WALLSPLATS
 void R_AddWallSplat(line_t *wallline, INT16 sectorside, const char *patchname, fixed_t top,
diff --git a/src/screen.c b/src/screen.c
index 9bbcb995c..b3e94091f 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -69,11 +69,7 @@ consvar_t cv_scr_height = {"scr_height", "800", CV_SAVE, CV_Unsigned, NULL, 0, N
 consvar_t cv_scr_depth = {"scr_depth", "16 bits", CV_SAVE, scr_depth_cons_t, NULL, 0, NULL, NULL, 0, 0, NULL};
 consvar_t cv_renderview = {"renderview", "On", 0, CV_OnOff, NULL, 0, NULL, NULL, 0, 0, NULL};
 
-#ifdef DIRECTFULLSCREEN
-static FUNCMATH void SCR_ChangeFullscreen (void);
-#else
 static void SCR_ChangeFullscreen (void);
-#endif
 
 consvar_t cv_fullscreen = {"fullscreen", "Yes", CV_SAVE|CV_CALL, CV_YesNo, SCR_ChangeFullscreen, 0, NULL, NULL, 0, 0, NULL};
 
diff --git a/src/sdl/i_cdmus.c b/src/sdl/i_cdmus.c
index 3105f5122..5d086e73a 100644
--- a/src/sdl/i_cdmus.c
+++ b/src/sdl/i_cdmus.c
@@ -12,19 +12,19 @@ consvar_t cd_volume = {"cd_volume","31",CV_SAVE,soundvolume_cons_t, NULL, 0, NUL
 consvar_t cdUpdate  = {"cd_update","1",CV_SAVE, NULL, NULL, 0, NULL, NULL, 0, 0, NULL};
 
 
-FUNCMATH void I_InitCD(void){}
+void I_InitCD(void){}
 
-FUNCMATH void I_StopCD(void){}
+void I_StopCD(void){}
 
-FUNCMATH void I_PauseCD(void){}
+void I_PauseCD(void){}
 
-FUNCMATH void I_ResumeCD(void){}
+void I_ResumeCD(void){}
 
-FUNCMATH void I_ShutdownCD(void){}
+void I_ShutdownCD(void){}
 
-FUNCMATH void I_UpdateCD(void){}
+void I_UpdateCD(void){}
 
-FUNCMATH void I_PlayCD(UINT8 track, UINT8 looping)
+void I_PlayCD(UINT8 track, UINT8 looping)
 {
 	(void)track;
 	(void)looping;
diff --git a/src/sdl/i_system.c b/src/sdl/i_system.c
index e917515f5..0963cc288 100644
--- a/src/sdl/i_system.c
+++ b/src/sdl/i_system.c
@@ -1929,14 +1929,14 @@ void I_StartupMouse2(void)
 //
 // I_Tactile
 //
-FUNCMATH void I_Tactile(FFType pFFType, const JoyFF_t *FFEffect)
+void I_Tactile(FFType pFFType, const JoyFF_t *FFEffect)
 {
 	// UNUSED.
 	(void)pFFType;
 	(void)FFEffect;
 }
 
-FUNCMATH void I_Tactile2(FFType pFFType, const JoyFF_t *FFEffect)
+void I_Tactile2(FFType pFFType, const JoyFF_t *FFEffect)
 {
 	// UNUSED.
 	(void)pFFType;
@@ -1947,7 +1947,7 @@ FUNCMATH void I_Tactile2(FFType pFFType, const JoyFF_t *FFEffect)
 */
 static ticcmd_t emptycmd;
 
-FUNCMATH ticcmd_t *I_BaseTiccmd(void)
+ticcmd_t *I_BaseTiccmd(void)
 {
 	return &emptycmd;
 }
@@ -1956,7 +1956,7 @@ FUNCMATH ticcmd_t *I_BaseTiccmd(void)
 */
 static ticcmd_t emptycmd2;
 
-FUNCMATH ticcmd_t *I_BaseTiccmd2(void)
+ticcmd_t *I_BaseTiccmd2(void)
 {
 	return &emptycmd2;
 }
@@ -2050,7 +2050,7 @@ tic_t I_GetTime (void)
 //
 //I_StartupTimer
 //
-FUNCMATH void I_StartupTimer(void)
+void I_StartupTimer(void)
 {
 #ifdef _WIN32
 	// for win2k time bug
@@ -2149,11 +2149,11 @@ void I_WaitVBL(INT32 count)
 	SDL_Delay(count);
 }
 
-FUNCMATH void I_BeginRead(void)
+void I_BeginRead(void)
 {
 }
 
-FUNCMATH void I_EndRead(void)
+void I_EndRead(void)
 {
 }
 
@@ -2916,5 +2916,5 @@ const CPUInfoFlags *I_CPUInfo(void)
 }
 
 // note CPUAFFINITY code used to reside here
-FUNCMATH void I_RegisterSysCommands(void) {}
+void I_RegisterSysCommands(void) {}
 #endif
diff --git a/src/sdl/i_video.c b/src/sdl/i_video.c
index adffa5542..05ed527de 100644
--- a/src/sdl/i_video.c
+++ b/src/sdl/i_video.c
@@ -1059,7 +1059,7 @@ void I_SetPalette(RGBA_t *palette)
 }
 
 // return number of fullscreen + X11 modes
-FUNCMATH INT32 VID_NumModes(void)
+INT32 VID_NumModes(void)
 {
 	if (USE_FULLSCREEN && numVidModes != -1)
 		return numVidModes - firstEntry;
@@ -1067,7 +1067,7 @@ FUNCMATH INT32 VID_NumModes(void)
 		return MAXWINMODES;
 }
 
-FUNCMATH const char *VID_GetModeName(INT32 modeNum)
+const char *VID_GetModeName(INT32 modeNum)
 {
 #if 0
 	if (USE_FULLSCREEN && numVidModes != -1) // fullscreen modes
@@ -1097,7 +1097,7 @@ FUNCMATH const char *VID_GetModeName(INT32 modeNum)
 	return &vidModeName[modeNum][0];
 }
 
-FUNCMATH INT32 VID_GetModeForSize(INT32 w, INT32 h)
+INT32 VID_GetModeForSize(INT32 w, INT32 h)
 {
 	int i;
 	for (i = 0; i < MAXWINMODES; i++)
diff --git a/src/sdl/mixer_sound.c b/src/sdl/mixer_sound.c
index bbd1fcee4..52a351622 100644
--- a/src/sdl/mixer_sound.c
+++ b/src/sdl/mixer_sound.c
@@ -143,7 +143,7 @@ void I_ShutdownSound(void)
 #endif
 }
 
-FUNCMATH void I_UpdateSound(void)
+void I_UpdateSound(void)
 {
 }
 
@@ -512,7 +512,7 @@ static void mix_gme(void *udata, Uint8 *stream, int len)
 /// Music System
 /// ------------------------
 
-FUNCMATH void I_InitMusic(void)
+void I_InitMusic(void)
 {
 }
 
diff --git a/src/sdl/sdl_sound.c b/src/sdl/sdl_sound.c
index 477f798bd..ebd615de2 100644
--- a/src/sdl/sdl_sound.c
+++ b/src/sdl/sdl_sound.c
@@ -219,7 +219,7 @@ static void Snd_UnlockAudio(void) //Alam: Unlock audio data and reinstall audio
 #endif
 }
 
-FUNCMATH static inline Uint16 Snd_LowerRate(Uint16 sr)
+static inline Uint16 Snd_LowerRate(Uint16 sr)
 {
 	if (sr <= audio.freq) // already lowered rate?
 		return sr; // good then
diff --git a/src/st_stuff.h b/src/st_stuff.h
index df0adace3..3886d737c 100644
--- a/src/st_stuff.h
+++ b/src/st_stuff.h
@@ -24,7 +24,7 @@
 //
 
 // Called by main loop.
-FUNCMATH void ST_Ticker(void);
+void ST_Ticker(void);
 
 // Called by main loop.
 void ST_Drawer(void);