Add a tool to scan for dependencies on Windows

Similar to ldd on Linux.

Signed-off-by: Thiago Macieira <thiago@macieira.org>

scripts/win-ldd.pl

@@ -0,0 +1,69 @@
+#!perl
+use strict;
+my %deploy;
+my $objdump = $ENV{objdump} ? $ENV{objdump} : "i686-w64-mingw32-objdump";
+my @searchdirs;
+
+sub addDependenciesFor($) {
+    open OBJDUMP, "-|", $objdump, "-p", $_[0] or die;
+    while (<OBJDUMP>) {
+        last if /^The Import Tables/;
+    }
+    while (<OBJDUMP>) {
+        next unless /DLL Name: (.*)/;
+        $deploy{$1} = 0 unless defined($deploy{$1});
+        last if /^\w/;
+    }
+    close OBJDUMP;
+}
+
+sub findMissingDependencies {
+    for my $name (keys %deploy) {
+        next if $deploy{$name};
+        my $path;
+        for my $dir (@searchdirs) {
+            my $fpath = "$dir/$name";
+            my $lcfpath = "$dir/" . lc($name);
+            if (-e $fpath) {
+                $path = $fpath;
+            } elsif (-e $lcfpath) {
+                $path = $lcfpath;
+            } else {
+                next;
+            }
+            addDependenciesFor($path);
+            last;
+        }
+
+        $path = "/missing/file" unless $path;
+        $deploy{$name} = $path;
+    }
+}
+
+for (@ARGV) {
+    s/^-L//;
+    next if /^-/;
+    if (-d $_) {
+        push @searchdirs, $_;
+    } elsif (-f $_) {
+        $deploy{$_} = $_;
+        addDependenciesFor($_);
+    }
+}
+
+while (1) {
+    findMissingDependencies();
+
+    my $i = 0;
+    while (my ($name, $path) = each(%deploy)) {
+        next if $path;
+        ++$i;
+        last;
+    }
+    last if $i == 0;
+}
+
+for (sort values %deploy) {
+    next if $_ eq "/missing/file";
+    print "$_\n";
+}

subsurface-install.pri

@@ -39,11 +39,6 @@ mac {
     WINDOWSSTAGING = packaging/windows
 
     deploy.path = $$WINDOWSSTAGING
-    for(qtlib, $$list(QtCore QtGui QtNetwork QtWebKit QtSvg QtXml QtDeclarative)) {
-        CONFIG(debug, debug|release): deploy.files += $$[QT_INSTALL_BINS]/$${qtlib}d4.dll
-        else: deploy.files += $$[QT_INSTALL_BINS]/$${qtlib}4.dll
-    }
-
     deploy.files += $$marbledir.files $$xslt.files $$doc.files
     target.path = $$WINDOWSSTAGING
     INSTALLS += deploy target
@@ -53,6 +48,16 @@ mac {
     qt_conf.commands += $${nltab}echo \'Plugins=plugins\' >> $@
     qt_conf.target = $$PWD/packaging/windows/qt.conf
     install.depends += qt_conf
+
+    !win32-msvc* {
+        !equals($$QMAKE_HOST.os, "Windows"): dlls.commands += OBJDUMP=`$(CC) -dumpmachine`-objdump
+        dlls.commands += perl $$PWD/scripts/win-ldd.pl $(DESTDIR_TARGET)
+        dlls.commands += `$(CC) -print-search-dirs | $(SED) -n \'/^libraries: =/{s///;s/:/\\n/g;p;q;}\' | $(SED) -E \'s,/lib/?\\\$\$,/bin,\'`
+        dlls.commands += $$LIBS
+        dlls.commands += | while read name; do $(INSTALL_FILE) \$\$name $$PWD/$$WINDOWSSTAGING; done
+        dlls.depends = $(DESTDIR_TARGET)
+        install.depends += dlls
+    }
 } else {
     # Linux install rules
     # On Linux, we can count on packagers doing the right thing