编译linux-2.6.21的问题-‘PATH_MAX’ undeclared

编译linux-2.6.21的问题：

cripts/mod/sumversion.c: In function ‘get_src_version’: 
scripts/mod/sumversion.c:384: error: ‘PATH_MAX’ undeclared (first use 
in this function) 
scripts/mod/sumversion.c:384: error: (Each undeclared identifier is 
reported only once 
scripts/mod/sumversion.c:384: error: for each function it appears in.) 
scripts/mod/sumversion.c:384: warning: unused variable ‘filelist’ 
make[3]: *** [scripts/mod/sumversion.o] Error 1 
make[2]: *** [scripts/mod] Error 2 
make[1]: *** [scripts] Error 2 
make[1]: Leaving directory `/home/nios2/uClinux-dist/linux-2.6.x' 
make: *** [linux] Error 1

解决方法：

# vi scripts/mod/sumversion.c

头文件包含中查看是否有limits.h，若没有，包含进去即可

#inlcude

转自：http://blog.csdn.net/linwhwylb/archive/2010/09/05/5864163.aspx