X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?p=subdirmk.git;a=blobdiff_plain;f=generate;h=bcbbf79dde7d86b5ad1b3ff5ba3b30b1ca2359d8;hp=486bdc54e1c888b7be9cee539918296651cc8010;hb=b0bdaa30dd60890b5494fab1f3e7f5d70a8ceb8e;hpb=25a516a59e7811b8626b5fe40b49c5ef942db697

diff --git a/generate b/generate
index 486bdc5..bcbbf79 100755
--- a/generate
+++ b/generate
@@ -3,14 +3,15 @@
 # subdirmk - &-filter (makefile generation program)
 #  Copyright 2019 Ian Jackson
 # SPDX-License-Identifier: LGPL-2.0-or-later
+# There is NO WARRANTY.
 #
 # $(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
+#     Dir.mk.tmp
+#     Makefile
+# and in toplevel
+#     main.mk.tmp
 
 use strict;
 use POSIX;
@@ -19,21 +20,40 @@ print "$0 @ARGV\n" or die $!;
 
 our $srcdir='.';
 
+# error handling methods:
+#
+# Error in input file, while $err_file and $. set, eg in most of
+# process_input_mk:
+#         err "message";
+#
+# Other input or usage errors:
+#         die "subdirmk: $file:$lno: problem\n";
+#         die "subdirmk: some problem not locatable in that way\n";
+#
+# Usage error:
+#         die "subdirmk $0: explanation of problem\n";
+#
+# System call error (not ENOENT) accessing input/output files:
+#         die "description of problem eg maybe erbing noun: $!\n";
+#
+# Bug detedcted in `generate':
+#         die "internal error (some information)?"; # or similar
+
 while (@ARGV && $ARGV[0] =~ m/^-/) {
     $_ = shift @ARGV;
     last if $_ eq '--';
     if (s/^--srcdir=//) {
 	$srcdir=$';
     } else {
-	die "$0: unknown option \`$_'\n";
+	die "subdirmk $0: unknown option \`$_'\n";
     }
 }
 our @subdirs = @ARGV;
 
 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) {
@@ -47,6 +67,7 @@ sub build_tree () {
 	    }
 	    $node = $c;
 	}
+	$node->[2] = 1;
     }
 }
 
@@ -59,6 +80,7 @@ our $writing_output;
 our $buffering_output;
 our %output_files;
 our %input_files;
+our @output_makefiles;
 
 sub close_any_output_file() {
     return unless defined $writing_output;
@@ -67,22 +89,41 @@ sub close_any_output_file() {
     $writing_output = undef;
 }
 
-sub o {
+sub oraw {
+    die 'internal error' unless defined $writing_output;
+    print O @_ or die "error writing $writing_output.tmp: $!\n";
+}
+
+sub oud { # undoubled
     if (defined $buffering_output) {
 	$buffering_output .= $_ foreach @_;
 	return;
     }
-    die unless defined $writing_output;
-    print O @_ or die "error writing $writing_output.tmp: $!\n";
+    oraw @_;
+}
+
+our $ddbl;
+
+sub od { # maybe $-doubled
+    if (!$ddbl) {
+	oud @_;
+	return;
+    }
+    foreach (@_) {
+	my $e = $_;
+	$e =~ s{\$}{\$\$}g;
+	oud $e;
+    }
 }
 
 sub start_output_file ($) {
     close_any_output_file();
     ($writing_output) = @_;
-    die "$writing_output ?" if $output_files{$writing_output}++;
+    die "internal error ($writing_output?)"
+	if $output_files{$writing_output}++;
     my $tmp = "$writing_output.tmp";
     open O, ">", $tmp or die "create $tmp: $!\n";
-    o "# autogenerated - do not edit\n";
+    oraw "# autogenerated - do not edit\n";
 }
 
 sub install_output_files () {
@@ -97,22 +138,85 @@ sub write_makefile ($$) {
     #print STDERR "write_makefile @_\n";
     start_output_file("${dir_prefix}Makefile");
     my $cd = $depth ? join('/', ('..',) x $depth) : '.';
-    o <<END;
+    my $suppress_templates=
+	'$(if $(filter-out clean real-clean, $(subdirmk_targets)),,'.
+	' MAKEFILE_TEMPLATES=)';
+    oraw <<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
 }
 
-sub process_input_mk ($$$$$$$$);
-sub process_input_mk ($$$$$$$$) {
-    my ($dir_prefix, $dir_suffix, $dir_name,
-	$var_prefix, $targets,
-	$f, $esclitr, $enoent_ok) = @_;
+our %varref;
+our %varref_exp;
+
+our ($dir_prefix, $dir_suffix, $dir_name,
+     $var_prefix, $var_prefix_name);
+
+sub dir_prefix ($) {
+    my ($path) = @_;
+    join '', map { "$_/" } @$path;
+}
+
+sub set_dir_vars ($) {
+    my ($path) = @_;
+    $dir_prefix = dir_prefix($path);
+    $dir_suffix = join '', map { "/$_" } @$path;
+    $dir_name = join '/', @$path ? @$path : '.';
+    $var_prefix_name = join '_', @$path ? @$path : qw(TOP);
+    $var_prefix = "${var_prefix_name}_";
+}
+
+our $err_file;
+
+our @warn_ena_dfl = map { $_ => 1 } qw(
+    local+global
+    single-char-var
+    unknown-warning
+    broken-var-ref
+);
+our %warn_ena = @warn_ena_dfl;
+
+our $warned;
+our %warn_unk;
+
+sub err ($) {
+    my ($m) = @_;
+    die defined $err_file
+	? "subdirmk: ${err_file}:$.: $m\n"
+	: "subdirmk: $m\n";
+}
+
+sub wrncore ($$) {
+    my ($wk,$m) = @_;
+    return 0 unless $warn_ena{$wk} // warn "internal error $wk ?";
+    $warned++;
+    print STDERR "subdirmk: warning ($wk): $m\n";
+    return 1;
+}
+
+sub wrn ($$) {
+    my ($wk,$m) = @_;
+    our %warn_dedupe;
+    return 0 if $warn_dedupe{$err_file,$.,$wk,$m}++;
+    wrncore($wk, "${err_file}:$.: $m");
+}
+
+sub ddbl_only ($) {
+    my ($e) = @_;
+    return if $ddbl;
+    err "escape &$e is valid only during \$-doubling";
+}
+
+sub process_input_mk ($$$$);
+sub process_input_mk ($$$$) {
+    my ($targets, $f, $esclitr, $enoent_ok) = @_;
 
     my $caps_re = qr{[A-Z]};
     my $lc_re = qr{[a-z]};
@@ -126,55 +230,168 @@ sub process_input_mk ($$$$$$$$) {
 
     my $input = new IO::File $f, '<';
     if (!$input) {
-	die "open $f: $!\n" unless $!==ENOENT && $enoent_ok;
+	err "open $f: $!" unless $!==ENOENT && $enoent_ok;
 	return;
     }
     $input_files{$f}++;
 
+    local $err_file=$f;
+
+    my %srcdirmap = (
+		  '^' => "\${top_srcdir}${dir_suffix}",
+		  '~' => "\${top_srcdir}",
+		    );
+    my %pfxmap = (
+		  ''  => $dir_prefix,
+		 );
+    $pfxmap{$_} = $srcdirmap{$_}.'/' foreach keys %srcdirmap;
+
+    local $ddbl;
+    my @nest = (['']);
+    my $evalcall_brackets;
+
+    my $push_nest = sub {
+	my ($nk, $nndbl, $what) = @_;
+	unshift @nest, [ $nk, $ddbl, $what, $. ];
+	$ddbl = $nndbl;
+    };
+    my $pop_nest = sub {
+	my ($nk) = @_;
+	err "unexpectedly closed $nk in middle of $nest[0][0] ($nest[0][2])"
+	    unless $nest[0][0] eq $nk;
+	$ddbl = (shift @nest)[1];
+    };
+
+    # Our detection of variable settings does not have to be completely
+    # accurate, since it is only going to be used for advice to the user.
+    my $note_varref = sub {
+	my ($vn,$amp) = @_;
+	my $exp = !!$varref_exp{$vn}{$amp};
+	$varref{$vn}{$exp}{$amp}{"$f:$."} = 1;
+    };
+
     while (<$input>) {
-	if (s#^\s*$esc\:##) {
+	if (m#^\s*($esc)?(\w+)\s*(?:=|\+=|\?=|:=)# ||
+	    m#^\s*(?:$esc\:macro|define)\s+($esc)?(\S+)\s#) {
+	    $note_varref->($2,!!$1);
+	}
+	if (s#^\s*$esc\:changequote\s+(\S+)\s+$##) {
+	    $$esclitr = $1;
+	    $set_esc->();
+	    next;
+	} elsif (s#^\s*$esc\:endm\s+$##) {
+	    $pop_nest->('macro');
+	    od "endef\n";
+	    next;
+	} elsif (s#^\s*$esc\:warn\s+(\S.*)$##) {
+	    foreach my $wk (split /\s+/, $1) {
+		my $yes = $wk !~ s{^!}{};
+		if (defined $warn_ena{$wk}) {
+		    $warn_ena{$wk} = $yes;
+		    next;
+		} elsif ($yes) {
+		    wrn 'unknown-warning',
+			"unknown warning $wk requested";
+		} else {
+		    $warn_unk{$wk} //= "$f:$.";
+		}
+	    }
+	    next;
+	} elsif (s#^\s*$esc\:local\+global\s+(\S.*)$##) {
+	    foreach my $vn (split /\s+/, $1) {
+		my $pos = !($vn =~ s{^!}{});
+		my $amp = $vn =~ s{^$esc}{};
+		$varref_exp{$vn}{!!$amp} = $pos;
+	    }
+	    next;
+	} elsif (s#^\s*$esc\:(?=(-?)include|macro)##) {
 	    $buffering_output='';
+	} elsif (m#^\s*$esc\:([a-z][-+0-9a-z_]*)#) {
+	    err "unknown directive &:$1 or bad argumnt syntax";
+	} elsif (s{^\s*${esc}TARGETS(?:_([0-9a-zA-Z_]+))?(?=\W)}{}) {
+	    my $t = $1 // 'all';
+	    my $vn = target_varname($var_prefix, $t);
+	    $note_varref->($vn,1);
+	    od $vn;
+	    $targets->{$t} //= [ ];
 	}
 	for (;;) {
-	    unless (s{^(.*?)(\\)?(?=$esc)}{}) { o $_; last; }
-	    o $1;
-	    if ($2) { o $$esclitr; next; }
-	    s{^$esc}{} or die "$_ ?";
-	    if (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} //= [ ];
+	    err 'cannot $-double &-processed RHS of directive'
+		if $ddbl && defined $buffering_output;
+	    unless ($nest[0][0] eq 'eval'
+		    ? s{^(.*?)($esc|\$|[{}])}{}
+		    : s{^(.*?)($esc|\$)}{}) { od $_; last; }
+	    od $1;
+	    if ($2 eq '{') {
+		od $2;
+		$evalcall_brackets++;
+		next;
+	    } elsif ($2 eq '}') {
+		od $2;
+		next if --$evalcall_brackets;
+		$pop_nest->('eval');
+		od '}';
+		next;
+	    } elsif ($2 eq '$') {
+		od $2;
+		if (s{^\$}{}) { od $&; }
+		elsif (m{^[a-zA-Z]\w}) {
+		    wrn 'single-char-var',
+		    'possibly confusing unbracketed single-char $-expansion';
+		}
+		elsif (m{^$esc}) {
+		    wrn 'broken-var-ref',
+		    'broken $&... expansion; you probably meant &$';
+		}
+		elsif (m{^\(($esc)?([^()\$]+)\)} ||
+		       m{^\{($esc)?([^{}\$]+)\}}) {
+		    $note_varref->($2,!!$1);
+	        }
+		next;
+	    }
+	    if (s{^\\$esc}{}) { od "$$esclitr" }
+	    elsif (s{^\\\$}{}) { oud '$' }
+	    elsif (s{^\\\s+$}{}) { }
+	    elsif (s{^$esc}{}) { od "$$esclitr$$esclitr" }
+	    elsif (m{^(?=$caps_re)}) { od $var_prefix }
+	    elsif (s{^\$([A-Za-z]\w+)}{}) {
+		$note_varref->($1,1);
+		od "\${${var_prefix}$1}";
 	    }
-	    elsif (m{^(?=$caps_re)}) { o $var_prefix }
-	    elsif (m{^(?=$lc_re)}) { o $dir_prefix }
-	    elsif (s{^_}{}) { o $var_prefix }
-	    elsif (s{^/}{}) { o $dir_prefix }
-	    elsif (s{^=_}{}) { o $var_prefix }
-	    elsif (s{^=/}{}) { o $dir_name }
-	    elsif (s{^\^}{}) { o "\$(top_srcdir)${dir_suffix}" }
-	    elsif (s{^\}}{}) { o "\$(abs_top_srcdir)${dir_suffix}" }
-	    elsif (s{^(?:[ \t]+([~^]))?(?=[ \t])}{}) {
-		my $prefix =
-		    !$1       ? $dir_prefix                     :
-		    $1 eq '~' ? '$(abs_top_srcdir)'.$dir_suffix :
-		    $1 eq '~' ? '$(abs_top_srcdir)'.$dir_suffix :
-		    die;
+	    elsif (s{^([~^]?)(?=$lc_re)}{}) { od $pfxmap{$1} }
+	    elsif (s{^_}{}) { od $var_prefix }
+	    elsif (s{^=}{}) { od $var_prefix_name }
+	    elsif (s{^([~^]?)/}{}) { od $pfxmap{$1} }
+	    elsif (s{^\.}{}) { od $dir_name }
+	    elsif (s{^([~^])\.}{}) { od $srcdirmap{$1} }
+	    elsif (s{^\$\-}{}) { $ddbl=undef; }
+	    elsif (s{^\$\+}{}) { $ddbl=1; }
+	    elsif (s{^\$\(}{}) {
+		ddbl_only($&); oud "\${";
+		$note_varref->($2,!!$1) if m{^($esc)?([^()\$]+\))};
+	    }
+	    elsif (s{^\$(\d+)}{}) { ddbl_only($&); oud "\${$1}"; }
+	    elsif (s{^\$\{}{}) {
+		err 'macro invocation cannot be re-$-doubled' if $ddbl;
+		od '${eval ${call ';
+		$evalcall_brackets = 1;
+		$push_nest->('eval',1, '&${...}');
+		$note_varref->($2,!!$1) if m{^\s*($esc)?([^,{}\$]+)};
+	    } elsif (s{^([~^]?)(?=[ \t])}{}) {
+		my $prefix = $pfxmap{$1} // die "internal error ($1?)";
 		my $after='';
 		if (m{([ \t])$esc}) { ($_,$after) = ($`, $1.$'); }
 		s{(?<=[ \t])(?=\S)(?!\\\s*$)}{$prefix}g;
-		o $_;
+		od $_;
 		$_ = $after;
 	    } elsif (s{^\#}{}) {
 		$_ = '';
 	    } elsif (s{^![ \t]+}{}) {
-		o $_;
+		od $_;
 		$_ = '';
-	    } elsif (s{^!(\S+)(?:[ \t]+|$)}{}) {
-		$$esclitr = $1;
-		$set_esc->();
 	    } else {
-		die "bad escape $$esclitr$_ ";
+		m{^.{0,5}};
+		err "bad &-escape \`$$esclitr$&'";
 	    }
 	}
 	if (defined $buffering_output) {
@@ -182,22 +399,24 @@ sub process_input_mk ($$$$$$$$) {
 	    $buffering_output=undef;
 	    if (m#^(-?)include\s+(\S+)\s+$#) {
 		my $subf = "$srcdir/$2";
-		process_input_mk($dir_prefix, $dir_suffix, $dir_name,
-				 $var_prefix, $targets,
-				 $subf, $esclitr, $1);
-		o "\n";
+		process_input_mk($targets, $subf, $esclitr, $1);
+		od "\n";
+	    } elsif (m#^macro\s+(\S+)\s+$#) {
+		od "define $1\n";
+		$push_nest->('macro', 1, '&:macro');
 	    } else {
-		die "unknown directive $_ ";
+		err "bad directive argument syntax";
 	    }
 	}
     }
+    die "subdirmk: $f:$nest[0][3]: unclosed $nest[0][0] ($nest[0][2])\n"
+	if $nest[0][0];
     $input->error and die "read $f: $!\n";
     close $input or die "close $f: $!\n";
 }
 
-sub filter_subdir_mk ($$$$$) {
-    my ($dir_prefix, $dir_suffix, $dir_name,
-	$var_prefix, $targets) = @_;
+sub filter_subdir_mk ($) {
+    my ($targets) = @_;
 
     #use Data::Dumper;
     #print STDERR "filter @_\n";
@@ -206,74 +425,141 @@ sub filter_subdir_mk ($$$$$) {
 
     my $pi = sub {
 	my ($f, $enoentok) = @_;
-	process_input_mk($dir_prefix, $dir_suffix, $dir_name,
-			 $var_prefix, $targets,
-			 "${srcdir}/$f", \$esclit, $enoentok);
+	process_input_mk($targets, "${srcdir}/$f", \$esclit, $enoentok);
     };
-    $pi->("${dir_prefix}Subdir.sd.mk", 0);
-    $pi->("Perdir.sd.mk",              1);
+    $pi->("Prefix.sd.mk",           1);
+    $pi->("${dir_prefix}Dir.sd.mk", 0);
+    $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 $var_prefix = join '', map { "${_}_" } @$path ? @$path : qw(TOP);
+    local %varref_exp;
+
+    my $dir_prefix = dir_prefix($path);
+    # ^ this is the only var which we need before we come back from
+    #   the recursion.
 
+    push @output_makefiles, "${dir_prefix}Dir.mk";
     write_makefile($dir_prefix, scalar @$path);
 
     my %targets = (all => []);
     foreach my $child (@{ $node->[1] }) {
 	my @childpath = (@$path, $child->[0]);
 	my $child_subdir = join '/', @childpath;
-	mkdir $child_subdir or $!==EEXIST or die "mkdir $child_subdir: $!";
+	mkdir $child_subdir or $!==EEXIST or die "mkdir $child_subdir: $!\n";
+	local %warn_ena = @warn_ena_dfl;
 	push @{ $targets{$_} }, $child_subdir foreach
 	    process_subtree($child, \@childpath);
     }
-    start_output_file("${dir_prefix}Subdir.mk.tmp");
 
-    filter_subdir_mk($dir_prefix, $dir_suffix, $dir_name,
-		     $var_prefix, \%targets);
+    set_dir_vars($path);
+    start_output_file("${dir_prefix}Dir.mk.tmp");
 
-    o "\n";
+    if ($node->[2]) {
+	filter_subdir_mk(\%targets);
+    } else {
+	my $sdmk = "${dir_prefix}Dir.sd.mk";
+	if (stat $sdmk) {
+	    die
+ "subdirmk: $sdmk unexpectedly exists (${dir_prefix} not mentioned on subdirmk/generate command line, maybe directory is missing from SUBDIRMK_SUBDIRS)";
+	} elsif ($!==ENOENT) {
+	} else {
+	    die "stat $sdmk: $!\n";
+	}
+    }
+
+    oraw "\n";
 
     my @targets = sort keys %targets;
     foreach my $target (@targets) {
 	my $target_varname = target_varname($var_prefix, $target);
-	print O "${dir_prefix}${target}:: \$($target_varname)";
+	oraw "${dir_prefix}${target}:: \$($target_varname)";
 	foreach my $child_subdir (@{ $targets{$target} }) {
-	    print O " $child_subdir/$target";
+	    oraw " $child_subdir/$target";
 	}
-	print O "\n";
+	oraw "\n";
+    }
+    if (@targets) {
+	oraw ".PHONY:";
+	oraw " ${dir_prefix}${_}" foreach @targets;
+	oraw "\n";
     }
 
     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 @$otargets;
+    my @ntargets = sort keys %ntargets;
+    die "subdirmk: Final.sd.mk may not introduce new top-level targets".
+	" (@ntargets)\n" if @ntargets;
+}
+
 sub process_tree() {
-    process_subtree($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=\@$v@\n";
+	oraw "$v=\@$v@\n";
     }
-    o "MAKEFILES += Subdir.mk\n";
-    foreach my $subdir (@subdirs) {
-	o "MAKEFILES += $subdir/Subdir.mk\n";
+    oraw "SUBDIRMK_MAKEFILES :=\n";
+    oraw "MAKEFILE_TEMPLATES :=\n";
+    foreach my $mf (@output_makefiles) {
+	oraw "SUBDIRMK_MAKEFILES += $mf\n";
     }
     foreach my $input (sort keys %input_files) {
-	o "MAKEFILE_TEMPLATES += $input\n";
+	oraw "MAKEFILE_TEMPLATES += $input\n";
+    }
+    oraw "include \$(SUBDIRMK_MAKEFILES)\n";
+}
+
+sub flmap ($) { local ($_) = @_; s{:(\d+)$}{ sprintf ":%10d", $1 }e; $_; }
+
+sub print_varref_warnings () {
+    foreach my $vn (sort keys %varref) {
+	my $vv = $varref{$vn};
+	next unless $vv->{''}{''} && $vv->{''}{1};
+	wrncore 'local+global', "saw both $vn and &$vn" or return;
+	foreach my $exp ('', 1) {
+	foreach my $amp ('', 1) {
+	    printf STDERR
+		($exp
+		 ? " expectedly saw %s%s at %s\n"
+		 : " saw %s%s at %s\n"),
+		($amp ? '&' : ''), $vn, $_
+		foreach
+		sort { flmap($a) cmp flmap($b) }
+		keys %{ $vv->{$exp}{$amp} };
+	}
+        }
+    }
+}
+
+sub print_warning_warnings () {
+    return unless $warned;
+    foreach my $wk (sort keys %warn_unk) {
+	wrncore 'unknown-warning',
+	    "$warn_unk{$wk}: attempt to suppress unknown warning(s) \`$wk'";
     }
-    o "include \$(MAKEFILES)";
 }
 
 build_tree();
 process_tree();
+print_varref_warnings();
+print_warning_warnings();
 install_output_files();