QtWebEngine-5.15.0

Installation of qtwebengine

First, ensure that the local headers are available when not building as part of the complete Qt-5.15.0:

find -type f -name "*.pr[io]" |
  xargs sed -i -e 's|INCLUDEPATH += |&$$QTWEBENGINE_ROOT/include |'

Next, apply a patch that fixes issues when using gcc-10 and current bison and also enables using system ICU version 67.1 or greater.

patch -Np1 -i ../qtwebengine-everywhere-src-5.15.0-consolidated_fixes-3.patch

Next, allow the pulseaudio library to be linked at build time, instead of run time. This also prevents an issue with newer pulseaudio:

sed -e '/link_pulseaudio/s/false/true/' \
    -i src/3rdparty/chromium/media/media_options.gni

Finally, fix a change in the build system which allows its developers to pass e.g. -j20 to make (for quick tests of some areas) but breaks the build with LFS's use of the NINJAJOBS environment variable:

sed -i 's/NINJAJOBS/NINJA_JOBS/' src/core/gn_run.pro

If an older version of the package's main library has been installed, when the package is built separately it will link to that in preference to its own not-yet-installed version, and fail because of missing symbols. Prevent that by, as the root user, moving the symlink out of the way:

if [ -e ${QT5DIR}/lib/libQt5WebEngineCore.so ]; then
  mv -v ${QT5DIR}/lib/libQt5WebEngineCore.so{,.old}
fi

Install qtwebengine by running the following commands:

mkdir build &&
cd    build &&

qmake .. -- -system-ffmpeg -webengine-icu &&
make

This package does not come with a test suite.

Now, as the root user:

make install

Remove references to the build directory from installed library dependency (prl) files by running the following commands as the root user:

find $QT5DIR/ -name \*.prl \
   -exec sed -i -e '/^QMAKE_PRL_BUILD_DIR/d' {} \;