error: ‘PATH_MAX’ undeclared (first use in this function)

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Ubuntu下 make menuconfig使用必须安装一个库

apt-get install libncurses5-dev

否则提示错误。

>> Unable to find the Ncurseslibraries.
>>
>> You must install ncurses-devel inorder
>> to use 'make menuconfig'

make[2]: *** [scripts/lxdialog/ncurses] 错误1
make[1]: *** [menuconfig] 错误 2
make: *** [menuconfig] 错误 2

Ubuntu 11.10环境下，编译PowerPC系统内核出错

内核2.6.19交叉编译问题，描述如下：

scripts/mod/sumversion.c: In function‘get_src_version’:
scripts/mod/sumversion.c:384: error: ‘PATH_MAX’ undeclared (firstuse
in this function)
scripts/mod/sumversion.c:384: error: (Each undeclared identifieris
reported only once
scripts/mod/sumversion.c:384: error: for each function it appearsin.)
scripts/mod/sumversion.c:384: warning: unused variable‘filelist’
make[3]: *** [scripts/mod/sumversion.o] Error1
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

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