build system: build Qt translation files on MingW

.gitignore

@@ -44,6 +44,7 @@
 /lib/saxon-he
 /po/*.mo
 /po/mkvtoolnix.pot
+/po/qt/*.qm
 /rake.d/dependency.d
 /share/icons/*/*.h
 /src/common/common.h.gch

Rakefile

@@ -173,6 +173,9 @@ def define_default_task
   # The GUI help
   targets << "translations:guides" if c?(:USE_WXWIDGETS)
 
+  # The Qt translation files: only for Windows
+  targets << "translations:qt" if c?(:MINGW) && !c(:LCONVERT).blank?
+
   task :default => targets do
     puts "Done. Enjoy :)"
   end
@@ -251,6 +254,12 @@ rule '.mo' => '.po' do |t|
   runq "  MSGFMT #{t.source}", "msgfmt -c -o #{t.name} #{t.sources.join(" ")}"
 end
 
+if !c(:LCONVERT).blank?
+  rule '.qm' => '.ts' do |t|
+    runq "LCONVERT #{t.source}", "#{c(:LCONVERT)} -o #{t.name} -i #{t.sources.join(" ")}"
+  end
+end
+
 # HTML help book stuff
 rule '.hhk' => '.hhc' do |t|
   runq "    GREP #{t.source}", "#{c(:GREP)} -v 'name=\"ID\"' #{t.sources.join(" ")} > #{t.name}"
@@ -401,6 +410,8 @@ EOT
 
   [ :applications, :manpages, :guides ].each { |type| task type => $translations[type] }
 
+  task :qt => FileList[ "#{$top_srcdir }/po/qt/*.ts" ].collect { |file| file.ext 'qm' }
+
   $available_languages[:manpages].each do |language|
     $manpages.each do |manpage|
       name = manpage.gsub(/man\//, "man/#{language}/")
@@ -643,7 +654,7 @@ task :clean do
     share/icons/*x*/*.h
     src/info/ui/*.h src/mkvtoolnix-gui/forms/**/*.h src/**/*.moc src/**/*.moco src/mkvtoolnix-gui/qt_resources.cpp
     tests/unit/**/*.o tests/unit/**/*.a tests/unit/all
-    po/*.mo doc/guide/**/*.hhk
+    po/*.mo po/qt/*.qm doc/guide/**/*.hhk
   }
   patterns += $applications + $tools.collect { |name| "src/tools/#{name}" }
 

ac/qt5.m4

@@ -228,6 +228,8 @@ return 0;
     BUILD_MKVTOOLNIX_GUI=no
   fi
 
+  AC_PATH_PROG(LCONVERT, lconvert)
+
 else
   echo '*** Not checking for Qt: disabled by user request'
 fi

build-config.in

@@ -55,6 +55,7 @@ INSTALL_SCRIPT = @INSTALL_SCRIPT@
 install_sh_DATA = $(install_sh) -c -m 644
 install_sh_PROGRAM = $(install_sh) -c
 install_sh_SCRIPT = $(install_sh) -c
+LCONVERT = @LCONVERT@
 LD = @LD@
 MOC = @MOC@
 OBJEXT = @OBJEXT@