error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
交叉编译平台 ubuntu12.04 x64
交叉编译工具链：Hi3516 arm-hisiv300
配置交叉环境时出现：
arm-hisiv300-linux-gcc: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
原因：缺少32位库，由于ubuntu12.04我使用的是64位的
解决：sudo apt-get install lib32stdc++6*
另外在安装一条：sudo apt-get install lib32z1*
否则出现还会如下错误：
/opt/hisi-linux/x86-arm/arm-hisiv300-linux/bin/../lib/gcc/arm-hisiv300-linux-uclibcgnueabi/4.8.3/../../../../arm-hisiv300-linux-uclibcgnueabi/bin/as: error while loading shared libraries: libz.so.1: cannot open shared object file: No such file or directory
错误2：交叉编译esp-6.2.1出现如下错误
src/sqlite/sqlite3.c:23331:42: error: ‘posix_fallocate’ undeclared here (not in a function)
{ "fallocate", (sqlite3_syscall_ptr)posix_fallocate, 0 },
解决方法：在sqlite3.c中，将# define HAVE_POSIX_FALLOCATE 1屏蔽即可
