sub target_varname ($$) {
my ($var_prefix, $target) = @_;
- return $vprefix.'TARGETS'.($target eq 'all' ? '' : "_$target");
+ return $var_prefix.'TARGETS'.($target eq 'all' ? '' : "_$target");
+}
+
+our $writing_output;
+our %output_files;
+
+sub close_any_output_file() {
+ return unless defined $writing_output;
+ O->error and die "error writing $writing_output.tmp: $! (?)\n";
+ close O or die "error closing $writing_output.tmp: $!\n";
+ $writing_output = undef;
+}
+
+sub start_output_file ($) {
+ close_any_output_file();
+ ($writing_output) = @_;
+ die if $output_files{$writing_output}++;
+ my $tmp = "$writing_output.tmp";
+ open O, ">", $tmp or die "create $tmp: $!\n";
+}
+
+sub o {
+ die unless defined $writing_output;
+ print O @_ or die "error writing $writing_output.tmp: $!\n";
}
sub write_makefile ($$) {
my ($dir_prefix,$depth) = @_;
start_output_file("${dir_prefix}Makefile");
my $cd = $depth ? join('/', ('..',) x $depth) : '.';
- o <<END;
+ o sprintf <<'END', $cd, $dir_prefix;
default: all
-%:
- \$(MAKE) -C $cd ${dir_prefix}$@
+%%:
+ $(MAKE) -C %s %s$@
END
}
$var_prefix, $targets) = @_;
my $in = "${srcdir}/${dir_prefix}Subdir.mk.in";
- open I, '<' $in or die "open $in: $!\n";
+ open I, '<', $in or die "open $in: $!\n";
my $caps_re = qr{[A-Z][0-9_A-Z]*(?=\W)};
my $lc_e = qr{[a-z][-+,0-9_a-z]*(?=\W)};
my $esclit = '&';