Index: qemu/Makefile
@@ -16,6 +16,8 @@
 
 VPATH=$(SRC_PATH):$(SRC_PATH)/hw
 
+QEMU_CFLAGS+= -DSMBD_COMMAND=\"${LOCALBASE}/sbin/smbd\" -I${LOCALBASE}/include -DPREFIX=\"${PREFIX}\"
+
 LIBS+=-lz $(LIBS_TOOLS)
 
 ifdef BUILD_DOCS
Index: qemu/Makefile.target
@@ -6,6 +6,7 @@
 TARGET_PATH=$(SRC_PATH)/target-$(TARGET_BASE_ARCH)
 VPATH=$(SRC_PATH):$(TARGET_PATH):$(SRC_PATH)/hw
 QEMU_CFLAGS+= -I.. -I$(TARGET_PATH) -DNEED_CPU_H
+QEMU_CFLAGS+= -DSMBD_COMMAND=\"${LOCALBASE}/sbin/smbd\" -I${LOCALBASE}/include -DPREFIX=\"${PREFIX}\"
 
 ifdef CONFIG_USER_ONLY
 # user emulator name
Index: qemu/net.h
@@ -99,12 +99,14 @@
 int slirp_is_inited(void);
 void net_client_check(void);
 
-#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
-#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
+#define DEFAULT_NETWORK_SCRIPT PREFIX "/etc/qemu-ifup"
+#define DEFAULT_NETWORK_DOWN_SCRIPT PREFIX "/etc/qemu-ifdown"
+#ifndef SMBD_COMMAND 
 #ifdef __sun__
 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 #else
 #define SMBD_COMMAND "/usr/sbin/smbd"
 #endif
+#endif
 
 #endif
Index: qemu/net/tap.h
@@ -29,8 +29,8 @@
 #include "qemu-common.h"
 #include "qemu-option.h"
 
-#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
-#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
+#define DEFAULT_NETWORK_SCRIPT PREFIX "/etc/qemu-ifup"
+#define DEFAULT_NETWORK_DOWN_SCRIPT PREFIX "/etc/qemu-ifdown"
 
 int net_init_tap(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan);