- Where run-time error checks enabling compiler option /GZ was used it is now

replaced with equivalent /RTCsu for Visual Studio 2003 and newer versions.

- Compiler option /GX is now replaced with equivalent /EHsc for all versions.

Makefile.msvc

@@ -222,13 +222,19 @@ PDBTYPE_CONSOLIDATE = /pdbtype:consolidate
 !UNDEF PDBTYPE_CONSOLIDATE
 !ENDIF
 
+!IF $(CC_VERS_NUM) <= 70
+RT_ERROR_CHECKING = /GZ
+!ELSE
+RT_ERROR_CHECKING = /RTCsu
+!ENDIF
+
 # ----------------------------
 # Assorted commands and flags
 # ----------------------------
 
 CC_CMD_REL = cl.exe /nologo $(RTLIB) /DNDEBUG /O2
-CC_CMD_DBG = cl.exe /nologo $(RTLIBD) /D_DEBUG /Od /Zi /GZ
-CC_CFLAGS  = $(CFLAGS) /I. /W3 /GX /FD
+CC_CMD_DBG = cl.exe /nologo $(RTLIBD) /D_DEBUG /Od /Zi $(RT_ERROR_CHECKING)
+CC_CFLAGS  = $(CFLAGS) /I. /W3 /EHsc /FD
 
 RC_CMD_REL = rc.exe /l 0x409 /d "NDEBUG"
 RC_CMD_DBG = rc.exe /l 0x409 /d "_DEBUG"