解决zlib.h:no such file or directory

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今天在linux装Qt库时，出现了
error： zlib.h:no such file or directory
去看了下出错的文件，里面这么一句#include
没这头文件？那就给它呗。
然后去搜索了下zlib.h，发现是属于zlib的。
去下个zlib。
zlib地址：http://www.zlib.net/

然后

zlib标准安装指导：

zlib library files are placed into /usr/local/lib and zlibheader files are placed into /usr/local/include, by default.

build static libraries
- .../zlib-1.2.1]# ./configure
- .../zlib-1.2.1]# make test
- .../zlib-1.2.1]# makeinstall
build shared libraries
- .../zlib-1.2.1]# make clean
- .../zlib-1.2.1]# ./configure--shared
- .../zlib-1.2.1]# make test
- .../zlib-1.2.1]# makeinstall
.../zlib-1.2.1]# cp zutil.h/usr/local/include
.../zlib-1.2.1]# cp zutil.c/usr/local/include
/usr/local/lib should now contain... libz.a libz.so -> libz.so.1.2.1 libz.so.1 -> libz.so.1.2.1 libz.so.1.2.1
/usr/local/include should now contain... zconf.h zlib.h zutil.h
可选择的zlib非标准安装指导：
- create the directory that willcontain zlib
  - .../zlib-1.2.1]#mkdir /usr/local/zlib
- follow the given procedureabove, except
  - .../zlib-1.2.1]#./configure --prefix=/usr/local/zlib

更新软连接：update the run-time linker

/etc/ld.so.cache will need to be updated with the new zlibshared lib: libz.so.1.2.1

for standard zlib installation...
- add /usr/local/lib to/etc/ld.so.conf, if specified path is not present
- /etc]# ldconfig
if zlib was installed with a prefix...
- add /usr/local/zlib/lib to/etc/ld.so.conf
- /etc]# ldconfig

再装，ok了。

来自：http://blog.sina.com.cn/s/blog_714dacd10102v6et.html

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