fix compiling error.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1339 bbd45198-f89e-11dd-88c7-29a3b14d5316

libcpu/arm/lpc24xx/interrupt.c

@@ -78,7 +78,10 @@ void rt_hw_interrupt_install(int vector, rt_isr_handler_t new_handler, rt_isr_ha
 	{
 		/* find first un-assigned VIC address for the handler */
 		vect_addr = (rt_uint32_t *)(VIC_BASE_ADDR + 0x100 + vector*4);
-		if (old_handler != RT_NULL) *old_handler = *vect_addr; /* get old handler */
+
+		/* get old handler */
+		if (old_handler != RT_NULL) *old_handler = (rt_isr_handler_t)*vect_addr; 
+
 		*vect_addr = (rt_uint32_t)new_handler;	/* set interrupt vector */
 	}
 }

libcpu/arm/lpc24xx/start_gcc.S

@@ -13,7 +13,6 @@
  * 2011-03-17     Bernard      update to 0.4.x
  */
 
-#define CONFIG_STACKSIZE        512
 #define WDMOD          (0xE0000000 + 0x00)
 #define VICIntEnClr    (0xFFFFF000 + 0x014)
 #define VICVectAddr    (0xFFFFF000 + 0xF00)