How To Install Qt 5.6.3 In Centos 6

Centos 6 Install Qt 5.6.3

How To Install Qt 5.6.3 In Centos 6

Why choose Qt 5.6

Qt 5.6 is a relatively compromised version. Many new features of Qt 5 are already available (such as QWebEngine). Too high versions require manual compilation of GCC, Glibc, Xorg and many other related environments on Centos 6, which is very cumbersome.

Download Qt 5.6

The official download link for Qt5.6 has been removed, and now only long-term support and recent versions can be downloaded from the official.

Centos 6 Install Qt 5.6.3

File Parameters Parameter Values
File name
File Size 680MB
File Format Qt Linux Installer
Download Github
Download Tools No special designation
Download link

Install Qt 5.6

  1. Give file executable permissions

    # chmod 755
  2. Run the file to complete the installation

    # ./
  3. Adding environment variables

    • create a new file:
      # vim /etc/profile.d/
    • Add the following:
      export PATH="/opt/Qt5.6.3/5.6.3/gcc_64/bin:$PATH"
      export PATH="/opt/Qt5.6.3/Tools/QtCreator/bin:$PATH"
    • :wq save and exit
    • Make it effective:
      # source /etc/profile
    • Check if the settings take effect
      # which qmake

Upgrade GCC

  1. Why need to upgrade GCC?
    Official support documentation from Qt 5.6
    It can be seen that Qt 5.6 requires at least GCC 4.9.1 support (many new features cannot be used without upgrading, and some Qt Demo also failed to compile), I choose to install GCC8 here.
    Centos 6 Install Qt 5.6.3

  2. Install GCC8 with SCL Repo

    # yum -y install centos-release-scl
    # yum -y install devtoolset-8-gcc devtoolset-8-gcc-c++ devtoolset-8-binutils
    # scl enable devtoolset-8 bash  #启动gcc8
    # echo "source /opt/rh/devtoolset-8/enable" >>/etc/profile
    # source /etc/profile
  3. Verify the installation

    # gcc -v
    Using built-in specs.
    Target: x86_64-redhat-linux
    Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-8/root/usr --mandir=/opt/rh/devtoolset-8/root/usr/share/man --infodir=/opt/rh/devtoolset-8/root/usr/share/info --with-bugurl= --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --with-linker-hash-style=gnu --with-default-libstdcxx-abi=gcc4-compatible --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-8.3.1-20190311/obj-x86_64-redhat-linux/isl-install --disable-libmpx --with-mpc=/builddir/build/BUILD/gcc-8.3.1-20190311/obj-x86_64-redhat-linux/mpc-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
    Thread model: posix
    gcc version 8.3.1 20190311 (Red Hat 8.3.1-3) (GCC)

Configure qtcreator

  1. Tools -> Options -> Build & Run -> Compilers -> Add -> GCC, Compiler path points to the g++ path in the Qt installation directory
    Centos 6 Install Qt 5.6.3

  2. Kits -> Add, Select the Compiler we just created
    Centos 6 Install Qt 5.6.3

Tested on Qt 5.6.3

I chose the QWebEngine demo demobrowser, and we can see that everything compiles and runs properly!
Centos 6 Install Qt 5.6.3

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