When libpng is installed, the error zlib no installed is returned.

Recently, I was playing Linux and found the specified directory. After zlib is compiled and installed, I installed libpng again. The error zlib no installed will be reported.

I checked a lot onlineArticleYou cannot specify a directory. Otherwise, an error is returned. However

Http://man.chinaunix.net/linux/lfs/LFS-6.1.1/chapter06/zlib.html

You can specify the directory by yourself.

Later, we found that we only need to point the compiled libz. so.1.2.x to/lib/libz. So. The command is as follows:

Ln-S/usr/local/zlib/lib/libz. so.1.2.7/lib/libz. So

For compilation purposes, the header file must be soft-linked to/usr/include. Why is it directly connected here? Because I have read the original centos, the default zlib header file is here.

Ln-S/usr/local/zlib/include/*/usr/include