Ubuntu下编译Qt5.15源码

1.下载最新Qt代码

wget https://download.qt.io/official_releases/qt/5.15/5.15.12/single/qt-everywhere-opensource-src-5.15.12.tar.xz
# 解压
tar -xJf qt-everywhere-opensource-src-5.15.12.tar.xz

2.编译

./configure -opensource -confirm-license -verbose -release -mp -icu -qt-pcre -qt-zlib -openssl -opengl dynamic -qt-freetype -qt-harfbuzz -qt-libpng -qt-libjpeg -no-sql-mysql -qt-sqlite -qt-tiff -qt-webp -webengine-proprietary-codecs -nomake tests -nomake examples -skip qtdoc -skip qtquickcontrols -skip qtscript -skip qtxmlpatterns

2.1 第一个错误

报错信息：

ERROR: Feature 'icu' was enabled, but the pre-condition 'libs.icu' failed.

2.2 第二个错误

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

2.3 解决,调整configure 命令行

./configure -opensource -confirm-license -verbose -release -nomake tests -nomake examples

这里注意，QtWebEngine QtPdf 无法正确编译，将跳过
我这里先忽略，直接执行：

make -j8

3.后续研究QtWebEngine编译问题

Qt WebEngine Build Tools:
  Use System Ninja ....................... no
  Jumbo Build Merge Limit ................ 8
  Developer build ........................ no
  Sanitizer .............................. no
  QtWebEngine required system libraries:
    fontconfig ........................... no
    dbus ................................. no
    nss .................................. no
    khr .................................. yes
    glibc ................................ yes
  Optional system libraries used:
    re2 .................................. no
    icu .................................. no
    libwebp, libwebpmux and libwebpdemux . no
    opus ................................. no
    ffmpeg ............................... no
    libvpx ............................... no
    snappy ............................... no
    glib ................................. no
    zlib ................................. yes
    minizip .............................. no
    libevent ............................. no
    libxml2 and libxslt .................. no
    lcms2 ................................ no
    png .................................. no
    JPEG ................................. no
    harfbuzz ............................. no
    freetype ............................. no