changes to target/linux/generic-* should not trigger a kernel-headers rebuild

[openwrt.git] / scripts / gen_deps.pl

diff --git a/scripts/gen_deps.pl b/scripts/gen_deps.pl
index 70c07b7..0fc80aa 100755 (executable)
--- a/scripts/gen_deps.pl
+++ b/scripts/gen_deps.pl
@@ -13,6 +13,7 @@ my $src;
 my $makefile;
 my %conf;
 my %pkg;
+my %prereq;
 my %dep;
 my %options;
 my $opt;
@@ -27,12 +28,23 @@ while ($line = <>) {
        $line =~ /^Source-Makefile: \s*(.+\/([^\/]+)\/Makefile)\s*$/ and do {
                $makefile = $1;
                $src = $2;
+               defined $pkg{$src} or $pkg{$src} = {};
+               $pkg{$src}->{src} = $src;
        };
        $line =~ /^Package: \s*(.+)\s*$/ and do {
                $name = $1;
                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 {
+               $pkg{$name}->{prereq} = 1;
+       };
        $line =~ /^(Build-)?Depends: \s*(.+)\s*$/ and do {
                $pkg{$name}->{depends} ||= [];
                foreach my $v (split /\s+/, $2) {
@@ -46,17 +58,27 @@ while ($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}) {