diff --git a/src/emu/cpu/h6280/h6280ops.h b/src/emu/cpu/h6280/h6280ops.h
index 8994af578ba..9969907a268 100644
--- a/src/emu/cpu/h6280/h6280ops.h
+++ b/src/emu/cpu/h6280/h6280ops.h
@@ -1080,6 +1080,9 @@ INLINE void WRMEM(offs_t addr, UINT8 data) {
 /* 6280 ********************************************************
  *  SEC Set carry flag
  ***************************************************************/
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC 													\
 	CLEAR_T;													\
 	P |= _fC
diff --git a/src/emu/cpu/hd6309/hd6309.c b/src/emu/cpu/hd6309/hd6309.c
index b8d9c4237d1..fc2812f8e8f 100644
--- a/src/emu/cpu/hd6309/hd6309.c
+++ b/src/emu/cpu/hd6309/hd6309.c
@@ -297,6 +297,9 @@ static UINT8 const *index_cycle;
 #define EXTENDED IMMWORD(ea)
 
 /* macros to set status flags */
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC CC|=CC_C
 #define CLC CC&=~CC_C
 #define SEZ CC|=CC_Z
diff --git a/src/emu/cpu/konami/konami.c b/src/emu/cpu/konami/konami.c
index 7642ac07152..1cc2a0c06fb 100644
--- a/src/emu/cpu/konami/konami.c
+++ b/src/emu/cpu/konami/konami.c
@@ -262,6 +262,9 @@ CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N
 #define EXTENDED IMMWORD(ea)
 
 /* macros to set status flags */
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC CC|=CC_C
 #define CLC CC&=~CC_C
 #define SEZ CC|=CC_Z
diff --git a/src/emu/cpu/lh5801/5801dasm.c b/src/emu/cpu/lh5801/5801dasm.c
index 8771f43925f..7295417f6c6 100644
--- a/src/emu/cpu/lh5801/5801dasm.c
+++ b/src/emu/cpu/lh5801/5801dasm.c
@@ -58,6 +58,10 @@ static const char *const RegNames[]= {
 	0, "A", "XL", "XH", "X", "YL", "YH", "Y", "UL", "UH", "U", "P", "S"
 };
 
+#if defined(SEC)
+#undef SEC
+#endif
+
 typedef enum {
 	ILL, ILL2, PREFD, NOP,
 
diff --git a/src/emu/cpu/m6502/ops02.h b/src/emu/cpu/m6502/ops02.h
index 09bcf866e0f..39dad716b8c 100644
--- a/src/emu/cpu/m6502/ops02.h
+++ b/src/emu/cpu/m6502/ops02.h
@@ -728,6 +728,9 @@
 /* 6502 ********************************************************
  *  SEC Set carry flag
  ***************************************************************/
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC 													\
 	P |= F_C
 
diff --git a/src/emu/cpu/m6502/opsce02.h b/src/emu/cpu/m6502/opsce02.h
index 0974a4fbbbf..29690d2b0d8 100644
--- a/src/emu/cpu/m6502/opsce02.h
+++ b/src/emu/cpu/m6502/opsce02.h
@@ -832,6 +832,9 @@
 /* 65ce02 ******************************************************
  *  SEC Set carry flag
  ***************************************************************/
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC										\
 	P |= F_C
 
diff --git a/src/emu/cpu/m6800/m6800.c b/src/emu/cpu/m6800/m6800.c
index 2eaf4ce1579..f70f0781a93 100644
--- a/src/emu/cpu/m6800/m6800.c
+++ b/src/emu/cpu/m6800/m6800.c
@@ -367,6 +367,9 @@ static const UINT8 flags8d[256]= /* decrement */
 #define INDEXED {EA=X+(UINT8)M_RDOP_ARG(PCD);PC++;}
 
 /* macros to set status flags */
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC CC|=0x01
 #define CLC CC&=0xfe
 #define SEZ CC|=0x04
diff --git a/src/emu/cpu/m6805/m6805.c b/src/emu/cpu/m6805/m6805.c
index 0a69b51e288..f928d7f557e 100644
--- a/src/emu/cpu/m6805/m6805.c
+++ b/src/emu/cpu/m6805/m6805.c
@@ -178,6 +178,9 @@ static const UINT8 flags8d[256]= /* decrement */
 #define INDEXED2 {IMMWORD(ea); EA+=X;}
 
 /* macros to set status flags */
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC CC|=CFLAG
 #define CLC CC&=~CFLAG
 #define SEZ CC|=ZFLAG
diff --git a/src/emu/cpu/m6809/m6809.c b/src/emu/cpu/m6809/m6809.c
index 0024874b0ba..4dfc0f4f2e7 100644
--- a/src/emu/cpu/m6809/m6809.c
+++ b/src/emu/cpu/m6809/m6809.c
@@ -309,6 +309,9 @@ CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N,CC_N
 #define EXTENDED IMMWORD(ea)
 
 /* macros to set status flags */
+#if defined(SEC)
+#undef SEC
+#endif
 #define SEC CC|=CC_C
 #define CLC CC&=~CC_C
 #define SEZ CC|=CC_Z
diff --git a/src/mame/video/model2.c b/src/mame/video/model2.c
index 44eda28c690..3b70ab7cb56 100644
--- a/src/mame/video/model2.c
+++ b/src/mame/video/model2.c
@@ -144,7 +144,7 @@ typedef struct
 	UINT16				z;
 	UINT16				texheader[4];
 	UINT8				luma;
-} quad;
+} _quad;
 
 typedef struct _poly_extra_data poly_extra_data;
 struct _poly_extra_data
@@ -368,7 +368,7 @@ void model2_3d_set_zclip( UINT8 clip )
 
 static void model2_3d_process_quad( UINT32 attr )
 {
-	quad		object;
+	_quad		object;
 	UINT16		*th, *tp;
 	INT32		tho;
 	UINT32		cull, i;