s{/+$}{} foreach @subdirs;
-our $root = [ '.', [ ] ];
-# each node is [ 'relative subdir name', \@children ]
+our $root = [ '.', [ ], 1 ];
+# each node is [ 'relative subdir name', \@children, $mentioned ]
sub build_tree () {
foreach my $subdir (@subdirs) {
}
$node = $c;
}
+ $node->[2] = 1;
}
}
#print STDERR "write_makefile @_\n";
start_output_file("${dir_prefix}Makefile");
my $cd = $depth ? join('/', ('..',) x $depth) : '.';
+ my $suppress_templates=
+ '$(if $(filter-out clean real-clean, $(subdirmk_targets)),,'.
+ ' MAKEFILE_TEMPLATES=)';
o <<END;
default: all
-%: FORCE-ALWAYS-RUN
+\$(filter-out all,\$(MAKECMDGOALS)) all: run-main.mk
\@:
-Makefile FORCE-ALWAYS-RUN:
- \$(MAKE) -C $cd -f main.mk \$(addprefix ${dir_prefix},\$(or \$(MAKECMDGOALS),all))
+subdirmk_targets:=\$(or \$(MAKECMDGOALS),all)
+Makefile run-main.mk:
+ \$(MAKE) -C $cd -f main.mk \$(addprefix ${dir_prefix},\$(subdirmk_targets))$suppress_templates
.SUFFIXES:
-.PHONY: FORCE-ALWAYS-RUN
+.PHONY: run-main.mk
END
}
}
start_output_file("${dir_prefix}Subdir.mk.tmp");
- filter_subdir_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, \%targets);
+ if ($node->[2]) {
+ filter_subdir_mk($dir_prefix, $dir_suffix, $dir_name,
+ $var_prefix, \%targets);
+ } else {
+ my $sdmk = "${dir_prefix}Subdir.sd.mk";
+ if (stat $sdmk) {
+ die "$sdmk unexpectedly exists (${dir_prefix} not mentioned)";
+ } elsif ($!==ENOENT) {
+ } else {
+ die "stat $sdmk: $!";
+ }
+ }
o "\n";
}
print O "\n";
}
+ if (@targets) {
+ print O ".PHONY:";
+ print O " ${dir_prefix}${_}" foreach @targets;
+ print O "\n";
+ }
return @targets;
}
foreach my $input (sort keys %input_files) {
o "MAKEFILE_TEMPLATES += $input\n";
}
- o "include \$(SUBDIRMK_MAKEFILES)";
+ o "include \$(SUBDIRMK_MAKEFILES)\n";
}
build_tree();