新裝好的redhat7.3，在安裝qt的時候，有時會出現
Basic XLib functionality test failed!
You might need to modify the include and library search paths by editing
QMAKE_INCDIR_X11 and QMAKE_LIBDIR_X11 in /home/zhu/Qt/qt-x11-opensource-src-4.5.2/mkspecs/Linux-g++
解決這個問題只需要幾個庫就可以了，實際上只要安裝兩個庫：
sudo yum install libXau-devel
sudo yum install ibX11-devel （打印信息顯示，該package已經安裝）
sudo yum install libXext-devel
但苦於自己的電腦沒有網絡，只能手動安裝，在安裝的過程中，經常產生這樣的警告：conflicts with file from package
[root@test1 softwares]# rpm -ivh lib64ev4-4.24-1.mga6.x86_64.rpm
warning: lib64ev4-4.24-1.mga6.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID 80420f66: NOKEY
Preparing... ################################# [100%]
package lib64ev4-1:4.24-1.mga6.x86_64 is already installed
[root@test1 softwares]# rpm -ivh lib64ev4-4.24-1.mga6.x86_64.rpm
warning: lib64ev4-4.24-1.mga6.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID 80420f66: NOKEY
Preparing... ################################# [100%]
package lib64ev4-1:4.24-1.mga6.x86_64 is already installed
[root@test1 softwares]# rpm -ivh perl-base-5.16.3-1.mga3.x86_64.rpm
warning: perl-base-5.16.3-1.mga3.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID 80420f66: NOKEY
Preparing... ################################# [100%]
file /usr/bin/perl from install of perl-base-2:5.16.3-1.mga3.x86_64 conflicts with file from package perl-4:5.16.3-283.el7.x86_64
file /usr/bin/perl5.16.3 from install of perl-base-2:5.16.3-1.mga3.x86_64 conflicts with file from package perl-4:5.16.3-283.el7.x86_64
解決辦法：
rpm -ivh perl-base-5.16.3-1.mga3.x86_64.rpm
--replacefiles
這樣就可完成XLib庫的安裝。