使用arm-linux-gcc可以顺利编译，但是使用gcc编译是会出现以下错误：
gcc-3.4 -I/armrfid/app2.4.18/minigui_lib/include -Wall -Wstrict-prototypes -pipe -D_REENTRANT -L/armrfid/app2.4.18/minigui_lib/lib -o helloworld helloworld.o -lminigui -lm -lpthread -lc -ljpeg -lttf
/usr/bin/ld: skipping incompatible /armrfid/app2.4.18/minigui_lib/lib/libminigui.a when searching for -lminigui
/usr/bin/ld: cannot find -lminigui
collect2: ld returned 1 exit status
make: *** [helloworld] 错误 1
不兼容是什么 意思。如何解决呢/

it seems that "/armrfid/app2.4.18/minigui_lib/lib/libminigui.a" is the lib for ARM platform
but when you use GCC to compile the code, will generate the binary/runnable file for the X86 platform,
so if you want compile OK, you should find a libminigui.a of X86 version .