#
# $(srcdir)/subdirmk/generate [--srcdir=SRCDIR] [--] SUBDIR...
#
-# generates in each subdirectory from in each subdirectory
-# Subdir.mk.tmp Subdir.sd.mk
-# Makefile and included files
-# and in toplevel and in toplevel
-# main.mk.tmp Perdir.sd.mk
+# generates in each subdirectory
+# Subdir.mk.tmp
+# Makefile
+# and in toplevel
+# main.mk.tmp
use strict;
use POSIX;
END
}
-sub process_input_mk ($$$$$$$$$);
-sub process_input_mk ($$$$$$$$$) {
- my ($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets,
- $f, $esclitr, $enoent_ok) = @_;
+our ($dir_prefix, $dir_suffix, $dir_name,
+ $var_prefix, $var_prefix_name);
+
+sub dir_prefix ($) {
+ my ($path) = @_;
+ join '', map { "$_/" } @$path;
+}
+
+sub set_dir_vars ($) {
+ my ($path) = @_;
+ $dir_prefix = dir_prefix($path);
+ $dir_suffix = join '', map { "/$_" } @$path;
+ $dir_name = join '/', @$path ? @$path : '.';
+ $var_prefix_name = join '_', @$path ? @$path : qw(TOP);
+ $var_prefix = "${var_prefix_name}_";
+}
+
+sub process_input_mk ($$$$);
+sub process_input_mk ($$$$) {
+ my ($targets, $f, $esclitr, $enoent_ok) = @_;
my $caps_re = qr{[A-Z]};
my $lc_re = qr{[a-z]};
$pfxmap{$_} = $srcdirmap{$_}.'/' foreach keys %srcdirmap;
while (<$input>) {
- if (s#^\s*$esc\:##) {
+ if (s#^\s*$esc\:changequote\s+(\S+)\s+$##) {
+ $$esclitr = $1;
+ $set_esc->();
+ next;
+ } elsif (s#^\s*$esc\:(?=(-?)include)##) {
$buffering_output='';
+ } elsif (m#^\s*$esc\:([a-z][-0-9a-z_]*)#) {
+ die "unknown directive $1";
+ } elsif (s{^\s*${esc}TARGETS(?:_([0-9a-zA-Z_]+))?(?=\W)}{}) {
+ my $t = $1 // 'all';
+ o target_varname($var_prefix, $t);
+ $targets->{$t} //= [ ];
}
for (;;) {
unless (s{^(.*?)$esc}{}) { o $_; last; }
o $1;
if (s{^\\$esc}{}) { o "$$esclitr" }
elsif (s{^\\\$}{}) { o '$' }
+ elsif (s{^\\\s+$}{}) { }
elsif (s{^$esc}{}) { o "$$esclitr$$esclitr" }
- elsif (s{^TARGETS(?:_([0-9a-zA-Z_]+))?(?=\W)}{}) {
- my $t = $1 // 'all';
- o target_varname($var_prefix, $t);
- $targets->{$t} //= [ ];
- }
elsif (m{^(?=$caps_re)}) { o $var_prefix }
+ elsif (s{^\$([A-Za-z]\w+)}{}) { o "\$(${var_prefix}$1)" }
elsif (s{^([~^]?)(?=$lc_re)}{}) { o $pfxmap{$1} }
elsif (s{^_}{}) { o $var_prefix }
elsif (s{^=}{}) { o $var_prefix_name }
$buffering_output=undef;
if (m#^(-?)include\s+(\S+)\s+$#) {
my $subf = "$srcdir/$2";
- process_input_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets,
- $subf, $esclitr, $1);
+ process_input_mk($targets, $subf, $esclitr, $1);
o "\n";
- } elsif (m#^changequote\s+(\S+)\s+$#) {
- $$esclitr = $1;
- $set_esc->();
} else {
- die "unknown directive $_ ";
+ die "internal error buffering directive $_ ";
}
}
}
close $input or die "close $f: $!\n";
}
-sub filter_subdir_mk ($$$$$$) {
- my ($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets) = @_;
+sub filter_subdir_mk ($) {
+ my ($targets) = @_;
#use Data::Dumper;
#print STDERR "filter @_\n";
my $pi = sub {
my ($f, $enoentok) = @_;
- process_input_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets,
- "${srcdir}/$f", \$esclit, $enoentok);
+ process_input_mk($targets, "${srcdir}/$f", \$esclit, $enoentok);
};
+ $pi->("Prefix.sd.mk", 1);
$pi->("${dir_prefix}Subdir.sd.mk", 0);
- $pi->("Perdir.sd.mk", 1);
+ $pi->("Suffix.sd.mk", 1);
}
sub process_subtree ($$);
sub process_subtree ($$) {
- # => list of descendants (in form SUBDIR/)
+ # => list of targets (in form SUBDIR/)
# recursive, children first
my ($node, $path) = @_;
#use Data::Dumper;
#print STDERR Dumper(\@_);
- my $dir_prefix = join '', map { "$_/" } @$path;
- my $dir_suffix = join '', map { "/$_" } @$path;
- my $dir_name = join '/', @$path ? @$path : '.';
- my $var_prefix_name = join '_', @$path ? @$path : qw(TOP);
- my $var_prefix = "${var_prefix_name}_";
+ my $dir_prefix = dir_prefix($path);
+ # ^ this is the only var which we need before we come back from
+ # the recursion.
push @output_makefiles, "${dir_prefix}Subdir.mk";
write_makefile($dir_prefix, scalar @$path);
push @{ $targets{$_} }, $child_subdir foreach
process_subtree($child, \@childpath);
}
+
+ set_dir_vars($path);
start_output_file("${dir_prefix}Subdir.mk.tmp");
if ($node->[2]) {
- filter_subdir_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, \%targets);
+ filter_subdir_mk(\%targets);
} else {
my $sdmk = "${dir_prefix}Subdir.sd.mk";
if (stat $sdmk) {
return @targets;
}
+sub process_final ($) {
+ my ($otargets) = @_;
+ set_dir_vars([]);
+ push @output_makefiles, "Final.mk";
+ start_output_file("Final.mk.tmp");
+ my %ntargets;
+ my $esclit='&';
+ process_input_mk(\%ntargets, "${srcdir}/Final.sd.mk", \$esclit, 1);
+ delete $ntargets{$_} foreach @$otargets;
+ my @ntargets = sort keys %ntargets;
+ die "late new targets @ntargets" if @ntargets;
+}
+
sub process_tree() {
- process_subtree($root, [ ]);
+ my @targets = process_subtree($root, [ ]);
+ process_final(\@targets);
start_output_file("main.mk.tmp");
foreach my $v (qw(top_srcdir abs_top_srcdir)) {
o "$v=\@$v@\n";