APUE练习的时候
编译的时候老是报警，说是未定义 SA_INTERRUPT
jasonleaster@ubuntu:/Ad_Pro_in_Unix/chapter_10$ cc ./pro_10_22.c
./pro_10_22.c: In function ‘main’:./pro_10_22.c:30:21: note: each undeclared identifier is reported only once for each function it appears in
纠结了半天，发现是头文件的问题，不要用apue.h，并且一定要include <setjmp.h>
可能是冲突的原因。这里不要include <apue.h>
而是include <setjmp.h>
就可以了。编译正常
‘SA_INTERRUPT’ undeclared (first use in this function)的解决办法,布布扣,bubuko.com
‘SA_INTERRUPT’ undeclared (first use in this function)的解决办法
原文：http://blog.csdn.net/cinmyheart/article/details/22769093