tlbuild: Build iteration
4.1 Build iteration
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Running the top-level 'configure' script configures the top level and
the subdirectories 'libs', 'utils', and 'texk'. Running 'make' at the
top level first iterates over the TeX-specific libraries, and then runs
'make' in 'libs', 'utils', and 'texk' to iterate over the generic
libraries, utility programs, and TeX-specific programs, respectively.
These iterations consist of two steps:
1. For each library or program module not yet configured, run
'configure', adding the configure option '--disable-build' if the
module need not be built, otherwise running 'make all'.
2. For each library or program module that must be built, run 'make'
for the selected target(s): 'default' or 'all' to (re-)build,
'check' to run tests, 'install', etc.
Running the top-level 'make' a second time iterates again over all
the library and program modules, and finds (should find) nothing to be
done.