add PROVIDES option, currently only used for menuconfig

[openwrt.git] / scripts / gen_deps.pl

diff --git a/scripts/gen_deps.pl b/scripts/gen_deps.pl
index e7daf18..af206f0 100755 (executable)
--- a/scripts/gen_deps.pl
+++ b/scripts/gen_deps.pl
@@ -14,7 +14,6 @@ my $makefile;
 my %conf;
 my %pkg;
 my %prereq;
-my $prereq;
 my %dep;
 my %options;
 my $opt;
@@ -35,9 +34,14 @@ while ($line = <>) {
                defined $pkg{$name} or $pkg{$name} = {};
                $pkg{$name}->{src} = $src;
        };
+       $line =~ /^Provides: \s*(.+)\s*$/ and do {
+               foreach my $vpkg (split /\s+/, $1) {
+                       defined $pkg{$vpkg} or $pkg{$vpkg} = {};
+                       $pkg{$vpkg}->{virtual} = 1;
+               }
+       };
        $line =~ /^Prereq-Check:/ and !defined $prereq{$src} and do {
-               $prereq{$src} = 1;
-               $prereq .= "package-prereq += $src\n";
+               $pkg{$name}->{prereq} = 1;
        };
        $line =~ /^(Build-)?Depends: \s*(.+)\s*$/ and do {
                $pkg{$name}->{depends} ||= [];
@@ -52,17 +56,27 @@ while ($line = <>) {
 $line="";
 
 foreach $name (sort {uc($a) cmp uc($b)} keys %pkg) {
+       my $config;
+       
+       next if defined $pkg{$name}->{virtual};
        if ($options{SDK}) {
-               $conf{$pkg{$name}->{src}} or print "package-m += $pkg{$name}->{src}\n";
-               $conf{$pkg{$name}->{src}} = 1;
+               $conf{$pkg{$name}->{src}} or do {
+                       $config = 'm';
+                       $conf{$pkg{$name}->{src}} = 1;
+               };
        } else {
-               print "package-\$(CONFIG_PACKAGE_$name) += $pkg{$name}->{src}\n";
+               $config = "\$(CONFIG_PACKAGE_$name)"
+       }
+       if ($config) {
+               print "package-$config += $pkg{$name}->{src}\n";
+               $pkg{$name}->{prereq} and print "prereq-$config += $pkg{$name}->{src}\n";
        }
 
        my $hasdeps = 0;
        my $depline = "";
        foreach my $dep (@{$pkg{$name}->{depends}}) {
                my $idx;
+               next if defined $pkg{$dep}->{virtual};
                if (defined $pkg{$dep}->{src}) {
                        ($pkg{$name}->{src} ne $pkg{$dep}->{src}) and $idx = $pkg{$dep}->{src};
                } elsif (defined($pkg{$dep}) && !$options{SDK}) {
@@ -81,5 +95,5 @@ foreach $name (sort {uc($a) cmp uc($b)} keys %pkg) {
 }
 
 if ($line ne "") {
-       print "\n$line\n$prereq";
+       print "\n$line";
 }