Translations are compiled, but I can't get app to come up in Spanish

I ran lupdate on my code and made two translation files, bezitopo_en.ts and bezitopo_es.ts . I compiled the program, getting .qm files, and tried to run the program in Spanish. It came up in English. What's wrong?

Here's my main program:

Code:

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int main(int argc, char *argv[])
{
  QApplication app(argc, argv);
  QTranslator translator;
  if (translator.load(QLocale(),QLatin1String("bezitopo"),QLatin1String("_"),QLatin1String(":")))
    app.installTranslator(&translator);
  TinWindow window;
  window.show();
  return app.exec();
}

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Here's the relevant part of CMakeLists.txt:

Code:

---

find_package(Qt5Core)
find_package(Qt5Widgets)
find_package(Qt5Gui)
find_package(Qt5LinguistTools)
qt5_add_resources(lib_resources viewtin.qrc)
qt5_add_translation(qm_files bezitopo_en.ts bezitopo_es.ts)
 
add_executable(viewtin angle.cpp arc.cpp bezier.cpp bezier3d.cpp binio.cpp breakline.cpp
               cidialog.cpp circle.cpp cogo.cpp color.cpp
               contour.cpp csv.cpp document.cpp drawobj.cpp ellipsoid.cpp
               geoid.cpp geoidboundary.cpp halton.cpp kml.cpp
               latlong.cpp ldecimal.cpp linetype.cpp
               manysum.cpp measure.cpp measurebutton.cpp penwidth.cpp
               pnezd.cpp point.cpp pointlist.cpp polyline.cpp projection.cpp
               ps.cpp qindex.cpp quaternion.cpp random.cpp relprime.cpp rendercache.cpp
               rootfind.cpp segment.cpp spiral.cpp spolygon.cpp test.cpp tin.cpp
               tinwindow.cpp vball.cpp vcurve.cpp viewtin.cpp zoom.cpp zoombutton.cpp
               ${lib_resources} ${qm_files})

---

And here are the commands I tried:

Code:

---

~/build/bezitopo/dbg$ LANGUAGE=es_ES ./viewtin &
~/build/bezitopo/dbg$ LANGUAGE=es ./viewtin &
~/build/bezitopo/dbg$ LANG=es_ES.utf8 ./viewtin &
~/build/bezitopo/dbg$ LANG=es ./viewtin &
~/build/bezitopo/dbg$ LANG=es_CO ./viewtin &
~/build/bezitopo/dbg$ LANG=es_ES ./viewtin &

---

I brought the binary up in Okteta and looked for one of the strings in UTF-16, but didn't find it. What am I doing wrong? The resources (icons) work just fine.

I tried adding the .qm files to the .qrc file, but it didn't compile. The .qm files are in the build directory; the icons are in the source directory.

I ended up installing the .qm files.
CMakeLists.txt:

Code:

---

set(SHARE_DIR ${CMAKE_INSTALL_PREFIX}/share/bezitopo)
install(FILES ${qm_files} DESTINATION share/bezitopo)

---

config.h.in:

Code:

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#define SHARE_DIR "@SHARE_DIR@"

---

Main program:

Code:

---

int main(int argc, char *argv[])
{
  QApplication app(argc, argv);
  QTranslator translator;
  if (translator.load(QLocale(),QLatin1String("bezitopo"),
                      QLatin1String("_"),QLatin1String(".")))
  {
    //cout<<"Translations found in current directory"<<endl;
    app.installTranslator(&translator);
  }
  else if (translator.load(QLocale(),QLatin1String("bezitopo"),
                      QLatin1String("_"),QLatin1String(SHARE_DIR)))
  {
    //cout<<"Translations found in share directory"<<endl;
    app.installTranslator(&translator);
  }
  TinWindow window;
  window.show();
  return app.exec();
}

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