[Gambas-user] Please... which is the problem in my compilation? Mandrake 10.1

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Please... which is the problem in my compilation?

Mandrake 10.1 - Gambas 2-1.9.12

In file included from gdraw.cpp:28:

widgets.h:490: warning: `class gControl' has virtual functions but 
non-virtual destructor

widgets.h:620: warning: `class gPlugin' has virtual functions but 
non-virtual destructor

widgets.h:640: warning: `class gProgressBar' has virtual functions but 
non-virtual destructor

widgets.h:657: warning: `class gLabel' has virtual functions but non-virtual 
destructor

widgets.h:674: warning: `class gTextLabel' has virtual functions but 
non-virtual destructor

widgets.h:683: warning: `class gButton' has virtual functions but 
non-virtual destructor

widgets.h:726: warning: `class gMovieBox' has virtual functions but 
non-virtual destructor

widgets.h:754: warning: `class gPictureBox' has virtual functions but 
non-virtual destructor

widgets.h:780: warning: `class gColumnView' has virtual functions but 
non-virtual destructor

widgets.h:823: warning: `class gListView' has virtual functions but 
non-virtual destructor

widgets.h:859: warning: `class gListBox' has virtual functions but 
non-virtual destructor

widgets.h:898: warning: `class gSpinBox' has virtual functions but 
non-virtual destructor

widgets.h:925: warning: `class gComboBox' has virtual functions but 
non-virtual destructor

widgets.h:961: warning: `class gTextBox' has virtual functions but 
non-virtual destructor

widgets.h:1003: warning: `class gTextArea' has virtual functions but 
non-virtual destructor

widgets.h:1052: warning: `class gSlider' has virtual functions but 
non-virtual destructor

widgets.h:1088: warning: `class gScrollBar' has virtual functions but 
non-virtual destructor

widgets.h:1098: warning: `class gContainer' has virtual functions but 
non-virtual destructor

widgets.h:1134: warning: `class gScrollView' has virtual functions but 
non-virtual destructor

widgets.h:1170: warning: `class gDrawingArea' has virtual functions but 
non-virtual destructor

widgets.h:1196: warning: `class gTabStrip' has virtual functions but 
non-virtual destructor

widgets.h:1220: warning: `class gFrame' has virtual functions but 
non-virtual destructor

widgets.h:1288: warning: `class gMainWindow' has virtual functions but 
non-virtual destructor

gdraw.cpp: In member function `bool gDraw::clipEnabled()':

gdraw.cpp:520: warning: unused variable 'val'

gdraw.cpp: In member function `void gDraw::text(char*, long int, long int, 
long int, long int, long int)':

gdraw.cpp:804: error: `PangoMatrix' undeclared (first use this function)

gdraw.cpp:804: error: (Each undeclared identifier is reported only once for 
each function it appears in.)

gdraw.cpp:804: error: expected `;' before "matrix"

gdraw.cpp:1035:2: warning: multi-line comment

make[4]: ** [gdraw.lo] Erro 1

make[4]: Leaving directory `/gambas2-1.9.12/gb.gtk/src'

make[3]: ** [all-recursive] Erro 1

make[3]: Leaving directory `/gambas2-1.9.12/gb.gtk'

make[2]: ** [all] Erro 2

make[2]: Leaving directory `/gambas2-1.9.12/gb.gtk'

make[1]: ** [all-recursive] Erro 1

make[1]: Leaving directory `/gambas2-1.9.12'

make: ** [all] Erro 2