--- a/PsxCounters.c
+++ b/PsxCounters.c
@@ -20,6 +20,9 @@
 
 #include "PsxCommon.h"
 
+psxCounter psxCounters[5];
+u32 psxNextCounter, psxNextsCounter;
+
 static int cnts = 4;
 static u32 last=0;
 
--- a/PsxCounters.h
+++ b/PsxCounters.h
@@ -24,9 +24,9 @@
 	u32 sCycle, Cycle, rate, interrupt;
 } psxCounter;
 
-psxCounter psxCounters[5];
+extern psxCounter psxCounters[5];
 
-u32 psxNextCounter, psxNextsCounter;
+extern u32 psxNextCounter, psxNextsCounter;
 
 void psxRcntInit();
 void psxRcntUpdate();
--- a/PsxMem.c
+++ b/PsxMem.c
@@ -21,6 +21,12 @@
 
 #include "PsxCommon.h"
 
+s8 *psxM;
+s8 *psxP;
+s8 *psxR;
+s8 *psxH;
+char **psxMemLUT;
+
 void LoadPSXMem(u32 address, s32 length, char *data)
 {
  //printf("%08x %08x\n",address,length);
--- a/PsxMem.h
+++ b/PsxMem.h
@@ -41,21 +41,21 @@
 }
 #endif
 
-s8 *psxM;
+extern s8 *psxM;
 #define psxMu32(mem)	(*(u32*)&psxM[(mem) & 0x1fffff])
 
-s8 *psxP;
-s8 *psxR;
+extern s8 *psxP;
+extern s8 *psxR;
 #define psxRu32(mem)	(*(u32*)&psxR[(mem) & 0x7ffff])
 
-s8 *psxH;
+extern s8 *psxH;
 
 #define psxHu8(mem)	(*(u8*) &psxH[(mem) & 0xffff])
 
 #define psxHu16(mem)   	(*(u16*)&psxH[(mem) & 0xffff])
 #define psxHu32(mem)   	(*(u32*)&psxH[(mem) & 0xffff])
 
-char **psxMemLUT;
+extern char **psxMemLUT;
 
 #define PSXM(mem)		(psxMemLUT[(mem) >> 16] == 0 ? NULL : (void*)(psxMemLUT[(mem) >> 16] + ((mem) & 0xffff)))
 
--- a/R3000A.c
+++ b/R3000A.c
@@ -22,6 +22,9 @@
 
 #include "PsxCommon.h"
 
+R3000Acpu *psxCpu;
+psxRegisters psxRegs;
+
 int psxInit() {
 
 	psxCpu = &psxInt;
--- a/R3000A.h
+++ b/R3000A.h
@@ -32,7 +32,7 @@
 	void (*Shutdown)();
 } R3000Acpu;
 
-R3000Acpu *psxCpu;
+extern R3000Acpu *psxCpu;
 extern R3000Acpu psxInt;
 
 typedef union {
@@ -68,7 +68,7 @@
 	u32 interrupt;
 } psxRegisters;
 
-psxRegisters psxRegs;
+extern psxRegisters psxRegs;
 
 #define _i32(x) (s32)x
 #define _u32(x) (u32)x