More preprocessor controls.

bochs/iodev/eth.h

@@ -72,6 +72,9 @@ private:
 
 // Define the known pktmover modules
 #define ETH_NULL  1
+#ifdef BX_USE_ETH_ARPBACK
+#  define ETH_ARPBACK 1
+#endif
 #if defined(__FreeBSD__) || defined(__OpenBSD__)
 #define ETH_FBSD  1
 #endif

bochs/iodev/eth_arpback.cc

@@ -28,6 +28,9 @@
 // rfc0903: rarp
 
 #include "bochs.h"
+
+#ifdef ETH_ARPBACK
+
 #include "crc32.h"
 #include "eth_packetmaker.h"
 #define LOG_THIS bx_ne2k.
@@ -198,3 +201,5 @@ void bx_arpback_pktmover_c::rx_timer (void)
   }
 }
 
+#endif
+

bochs/iodev/eth_packetmaker.cc

@@ -1,6 +1,9 @@
-#include "eth_packetmaker.h"
 #include "bochs.h"
 
+#ifdef ETH_ARPBACK
+
+#include "eth_packetmaker.h"
+
 
 Boolean sendable(const eth_packet& outpacket) {
   //FINISH ME!
@@ -169,5 +172,5 @@ eth_ARPmaker::sendpacket(const eth_packet& outpacket) {
   }
 }
 
-
+#endif
 

bochs/iodev/eth_packetmaker.h

@@ -4,6 +4,8 @@
 
 #include "../config.h"
 
+#ifdef ETH_ARPBACK
+
 #define PACKET_BUF_SIZE 2048
 static const Bit8u internal_mac[]={0xB0, 0xC4, 0x20, 0x20, 0x00, 0x00, 0x00};
 static const Bit8u external_mac[]={0xB0, 0xC4, 0x20, 0x20, 0x00, 0x00, 0x00};
@@ -124,5 +126,6 @@ private:
 };
 
 
+#endif // ETH_ARPBACK
 #endif // _ETH_PACKETMAKER_H_