/bin/grep: warning: stray \ before -
VSDXTheme.cpp: In member function ‘void libvisio::VSDXTheme::readFillStyleLst(xmlTextReaderPtr)’:
VSDXTheme.cpp:573:131: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body]
  573 |           VSD_DEBUG_MSG(("VSDXTheme::readFillStyleLst Error: Unable to add colour #%02x%02x%02x\n", colour.r, colour.g, colour.b));
      |                                                                                                                                   ^
libtool: warning: remember to run 'libtool --finish /usr/lib'
libtool: warning: '../../lib/libvisio-0.1.la' has not been installed in '/usr/lib'
libtool: warning: '../../lib/libvisio-0.1.la' has not been installed in '/usr/lib'
libtool: warning: '../../lib/libvisio-0.1.la' has not been installed in '/usr/lib'
libtool: warning: '../../lib/libvisio-0.1.la' has not been installed in '/usr/lib'
libtool: warning: '../../lib/libvisio-0.1.la' has not been installed in '/usr/lib'
libtool: warning: '../../lib/libvisio-0.1.la' has not been installed in '/usr/lib'