**** Build of configuration Debug for project test001 **** make all Building target: test001.elf Invoking: ARM Windows GCC C Linker arm-elf-gcc -nodefaultlibs -Wl,-Map,test001.map -mcpu=arm7tdmi -g3 -gdwarf-2 -o"test001.elf" ./main.o c:/program files/winarm/bin/../lib/gcc/arm-elf/4.1.1/../../../../arm-elf/lib/crt0.o: In function `start': c:/winarms/newlib-1.14.0/libgloss/arm/crt0.S:138: undefined reference to `memset' c:/winarms/newlib-1.14.0/libgloss/arm/crt0.S:281: undefined reference to `atexit' c:/winarms/newlib-1.14.0/libgloss/arm/crt0.S:282: undefined reference to `__libc_init_array' c:/winarms/newlib-1.14.0/libgloss/arm/crt0.S:286: undefined reference to `main' c:/winarms/newlib-1.14.0/libgloss/arm/crt0.S:288: undefined reference to `exit' c:/winarms/newlib-1.14.0/libgloss/arm/crt0.S:288: undefined reference to `__libc_fini_array' collect2: ld returned 1 exit status make: *** [test001.elf] Error 1