qt: fix native mingw build * src/qt.mk: fix typo in native mingw -I freetype2 option. Use PKG_INSTALL_ROOT option to provide install root definition. Add sqlite as a PKG_CONFIGURE_DATABASE_OPTION instead of harcoded to configure. Install qmake to build tools if native.

#include <iostream>
#include <cpp/poppler-version.h>

int main(int argc, char *argv[])
{
    (void)argc;
    (void)argv;

    std::cout << "Poppler version: " << poppler::version_string() << std::endl;

    return 0;
}