Estimated hours taken: 6
Add Mmake support for nested sub-modules.
compiler/mercury_compile.m:
compiler/modules.m:
compiler/intermod.m:
Pass down the source file name to various places.
Store the source file name in the module_imports data structure.
In various places, use this source file name instead of assuming
that the source file name can be obtained from the module name.
compiler/modules.m:
Change the generated .d and .dep files to use the source file names.
Add hard-coded rules in the .d files if the source file name does not
match the form expected by the pattern rules in scripts/Mmake.rules.
XXX unfortunately the rules don't work right for parallel makes of
nested modules
scripts/Mmake.rules:
Add a comment saying that any changes here might need to
be duplicated in compiler/modules.m.
tests/hard_coded/Mmakefile:
tests/hard_coded/nested.m:
tests/hard_coded/nested2.m:
tests/hard_coded/nested.exp:
tests/hard_coded/nested2.exp:
Add a couple of test cases for nested modules (XXX not enabled,
due to the above-mentioned problem with parallel makes).
doc/reference_manual.texi:
Update the "implementation bugs and limitations" section.
NEWS:
Update the news about nested modules.
