62d7acc6 added arguments to Flex when regenerating
cmCommandArgumentLexer, but this was not reflected in
Utilities/Scripts/regenerate-lexers.bash. Update the script with
the proper arguments.
Introduce the function cmReadGccDepfile that parses a GCC-style depfile
and returns its content. The implementation uses a lexer that is
modeled after the re2c implementation in Ninja.
The sample files of the autotest have been created with gcc 8.3.0.
This depfile reader is to be used by the Autogen facility to make use
of the depfiles that are generated by Qt's meta object compiler.
note: this depends on
- a suitable flex version in PATH (currently 2.6.4)
- a suitable version of 'sed' in PATH (e.g. GNU sed)
Signed-off-by: Matthias Maennich <matthias@maennich.net>
