Fix dynarec x64 crash with mingw64.

Get rid of CDI warning pop up dialog

core/hw/sh4/dyna/driver.cpp

@@ -425,6 +425,7 @@ void recSh4_Init()
 	}
 	
 #if defined(_WIN64)
+#ifdef _MSVC_VER
 	for (int i = 10; i < 1300; i++) {
 
 
@@ -436,6 +437,10 @@ void recSh4_Init()
 		if (CodeCache)
 			break;
 	}
+#else
+	CodeCache = (u8*)VirtualAlloc(NULL, CODE_SIZE, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+#endif
+	verify(CodeCache != NULL);
 #else
 	CodeCache = (u8*)(((unat)SH4_TCB+4095)& ~4095);
 #endif

core/imgread/common.cpp

@@ -138,11 +138,8 @@ Disc* OpenDisc(const wchar* fn)
 
 		if (rv && cdi_parse == drivers[i]) {
 			const wchar warn_str[] = "Warning: CDI Image Loaded!\n  Many CDI images are known to be defective, GDI or CHD format is preferred. Please only file bug reports when using images known to be good (GDI or CHD).";
-#ifdef _ANDROID
 			printf(warn_str);
-#else
-			msgboxf(warn_str, MBX_ICONASTERISK);// if (OS_DlgYes!=os_Dialog(OS_DialogYesNo, cdiWarn_S)) rv=0;
-#endif
+
 			break;
 		}
 	}