Meson is designed for high productivity. It tries to do as many things automatically as it possibly can.
Ccache is a cache system designed to make compiling faster. When you run Meson for the first time for a given project, it checks if Ccache is installed. If it is, Meson will use it automatically.
If you do not wish to use Ccache for some reason, just specify your
compiler with environment variables
CXX when first
running Meson (remember that once specified the compiler can not be
changed). Meson will then use the specified compiler without Ccache.
When doing a code coverage build, Meson will check for existence of
genhtml. If version 3.3 or higher
of the first is found, targets called coverage-text, coverage-xml
and coverage-html are generated. Alternatively, if the latter two
are found, only the target coverage-html is generated. Coverage
reports can then be produced simply by calling e.g.
ninja coverage-xml. As a convenience, a high-level coverage target is
also generated which will produce all 3 coverage report types, if
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