Fix linking errors on BSD

[user/henk/code/inspircd.git] / make / calcdep.pl

diff --git a/make/calcdep.pl b/make/calcdep.pl
index bcbb7cbd04f9c3a8374b56c575673333766efb8a..ad25875cfe782474c5dc37f35ff9c6915bfe84f2 100755 (executable)
--- a/make/calcdep.pl
+++ b/make/calcdep.pl
@@ -1,25 +1,163 @@
 #!/usr/bin/perl
 use strict;
-BEGIN { push @INC, '..'; }
-use make::configure;
+use warnings;
+use POSIX qw(getcwd);
 
-my $file = shift;
+sub find_output($);
+sub gendep($);
+sub dep_cpp($$);
+sub dep_dir($);
+sub run();
 
-$file =~ /(.*)\.cpp$/ or die "Cannot process $file";
-my $base = $1;
+my %f2dep;
 
-my $out = "$base.d";
+run;
+exit 0;
 
-open IN, '<', $file or die "Could not read $file: $!";
-open OUT, '>', $out or die "Could not write $out: $!";
+sub run() {
+       my $build = $ENV{BUILDPATH};
+       mkdir $build;
+       chdir $build or die "Could not open build directory: $!";
+       mkdir 'bin';
+       mkdir 'obj';
+       mkdir 'modules';
+       symlink "$ENV{SOURCEPATH}/include", 'include';
+       $build = getcwd();
+       open MAKE, '>real.mk' or die "Could not write real.mk: $!";
+       chdir "$ENV{SOURCEPATH}/src";
 
-my $cc_deps = qx($ENV{CC} $ENV{FLAGS} -MM $file);
-$cc_deps =~ s/.*?:\s*//;
+       print MAKE <<END;
+# DO NOT EDIT
+# Autogenerated by calcdep
+VPATH = \$(SOURCEPATH)/src
+
+all: bin/inspircd modules
+
+END
+       my @core_deps;
+       for my $file (<*.cpp>, <modes/*.cpp>, "socketengines/$ENV{SOCKETENGINE}.cpp", "threadengines/threadengine_pthread.cpp") {
+               my $out = find_output $file;
+               dep_cpp $file, $out;
+               push @core_deps, $out;
+       }
+       
+       my @modlist;
+       for my $file (<commands/*.cpp>) {
+               my $out = find_output $file;
+               dep_cpp $file, $out;
+               push @modlist, $out;
+       }
+
+       opendir my $moddir, 'modules';
+       for my $file (readdir $moddir) {
+               next if $file =~ /^\./;
+               if (-e "modules/extra/$file" && !-l "modules/$file") {
+                       # Incorrect symlink?
+                       print "Replacing symlink for $file found in modules/extra\n";
+                       rename "modules/$file", "modules/$file~";
+                       symlink "extra/$file", "modules/$file";
+               }
+               if ($file =~ /^m_/ && -d "modules/$file" && dep_dir "modules/$file") {
+                       mkdir "$build/obj/$file";
+                       push @modlist, "modules/$file.so";
+               }
+               if ($file =~ /^m_.*\.cpp$/) {
+                       my $out = find_output "modules/$file";
+                       dep_cpp "modules/$file", $out;
+                       push @modlist, $out;
+               }
+       }
+       
+       my $core_mk = join ' ', @core_deps;
+       my $mods = join ' ', @modlist;
+       print MAKE <<END;
+
+bin/inspircd: $core_mk
+       cd \$(BUILDPATH); \$(RUNCC) -o \$\@ \$(CORELDFLAGS) \$(LDLIBS) \$^ \$>
+
+inspircd: bin/inspircd
+modules: $mods
+
+.PHONY: inspircd modules
+
+END
+}
+
+sub find_output($) {
+       my $file = shift;
+       my($path,$base) = $file =~ m#^((?:.*/)?)([^/]+)\.cpp# or die "Bad file $file";
+       if ($path eq 'modules/' || $path eq 'commands/') {
+               return "modules/$base.so";
+       } elsif ($path eq '' || $path eq 'modes/' || $path =~ /^[a-z]+engines\/$/) {
+               return "obj/$base.o";
+       } elsif ($path =~ m#modules/(m_.*)/#) {
+               return "obj/$1/$base.o";
+       } else {
+               die "Can't determine output for $file";
+       }
+}
+
+sub gendep($) {
+       my $f = shift;
+       my $basedir = $f =~ m#(.*)/# ? $1 : '.';
+       return $f2dep{$f} if exists $f2dep{$f};
+       $f2dep{$f} = '';
+       my %dep;
+       my $link = readlink $f;
+       if (defined $link) {
+               $link = "$basedir/$link" unless $link =~ m#^/#;
+               $dep{$link}++;
+       }
+       open my $in, '<', $f or die "Could not read $f";
+       while (<$in>) {
+               if (/^\s*#\s*include\s*"([^"]+)"/) {
+                       my $inc = $1;
+                       next if $inc eq 'inspircd_version.h' && $f eq '../include/inspircd.h';
+                       my $found = 0;
+                       for my $loc ("$basedir/$inc", "../include/$inc") {
+                               next unless -e $loc;
+                               $found++;
+                               $dep{$_}++ for split / /, gendep $loc;
+                               $loc =~ s#^\.\./##;
+                               $dep{$loc}++;
+                       }
+                       if ($found == 0 && $inc ne 'inspircd_win32wrapper.h') {
+                               print STDERR "WARNING: could not find header $inc for $f\n";
+                       } elsif ($found > 1 && $basedir ne '../include') {
+                               print STDERR "WARNING: ambiguous include $inc in $f\n";
+                       }
+               }
+       }
+       close $in;
+       $f2dep{$f} = join ' ', sort keys %dep;
+       $f2dep{$f};
+}
+
+sub dep_cpp($$) {
+       my($file, $out) = @_;
+       gendep $file;
+
+       print MAKE "$out: $file $f2dep{$file}\n";
+       print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl \$(VERBOSE) \$\@ \$< \$>\n";
+}
+
+sub dep_dir($) {
+       my($dir) = @_;
+       my @ofiles;
+       opendir DIR, $dir;
+       for my $file (readdir DIR) {
+               next unless $file =~ /(.*)\.cpp$/;
+               my $ofile = find_output "$dir/$file";
+               dep_cpp "$dir/$file", $ofile;
+               push @ofiles, $ofile;
+       }
+       closedir DIR;
+       if (@ofiles) {
+               my $ofiles = join ' ', @ofiles;
+               print MAKE "$dir.so: $ofiles\n\tcd \$(BUILDPATH); \$(RUNCC) \$(PICLDFLAGS) -o \$\@ \$^ \$>\n";
+               return 1;
+       } else {
+               return 0;
+       }
+}
 
-my $ext = $file =~ m#(modules|commands)/[^/]+$# ? '.so' : '.o';
-print OUT "$base$ext: $cc_deps";
-print OUT "\t@../make/unit-cc.pl \$(VERBOSE) $file $base$ext\n";
-print OUT "$base.d: $cc_deps";
-print OUT "\t\@\$(VDEP_IN)\n";
-print OUT "\t../make/calcdep.pl $file\n";
-print OUT "\t\@\$(VDEP_OUT)\n";