Compile and Install GTK+ 2.4.1 on Linux Red Hat 9.0 failled!

make[4]: Entering directory
`/home/linuxembedded/Desktop/PedroRomao/GTK+-2.4.1/gtk+-2.4.1/gtk/stock-icons'
GDK_PIXBUF_MODULE_FILE=../../gdk-pixbuf/gdk-pixbuf.loaders
../../gdk-pixbuf/gdk-pixbuf-csource                \
   --raw --build-list stock_add_16              ./stock_add_16.png stock_add_24
                ./stock_add_24.png stock_align_center_16      
./stock_align_center_16.png stock_align_center_24      
./stock_align_center_24.png stock_align_justify_16    
./stock_align_justify_16.png stock_align_justify_24    
./stock_align_justify_24.png stock_align_left_16       ./stock_align_left_16.png
stock_align_left_24   ./stock_align_left_24.png stock_align_right_16
./stock_align_right_16.png stock_align_right_24 ./stock_align_right_24.png
stock_apply_20      ./stock_apply_20.png stock_cancel_20           
./stock_cancel_20.png stock_dnd_multiple_32     ./stock_dnd_multiple_32.png
stock_bottom_16            ./stock_bottom_16.png stock_bottom_24          
./stock_bottom_24.png stock_cdrom_16           ./stock_cdrom_16.png
stock_cdrom_24             ./stock_cdrom_24.png stock_clear_24  
./stock_clear_24.png stock_close_20              ./stock_close_20.png
stock_close_24             ./stock_close_24.png stock_colorselector_24   
./stock_colorselector_24.png stock_color_picker_25     
./stock_color_picker_25.png > gtkstockpixbufs.h ||     \
           ( rm -f gtkstockpixbufs.h && false )
failed to load "./stock_add_16.png": Couldn't recognize the image file format
for file './stock_add_16.png'
make[4]: *** [gtkstockpixbufs.h] Error 1
make[4]: Leaving directory
`/home/linuxembedded/Desktop/PedroRomao/GTK+-2.4.1/gtk+-2.4.1/gtk/stock-icons'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory
`/home/linuxembedded/Desktop/PedroRomao/GTK+-2.4.1/gtk+-2.4.1/gtk'
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/home/linuxembedded/Desktop/PedroRomao/GTK+-2.4.1/gtk+-2.4.1/gtk'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory
`/home/linuxembedded/Desktop/PedroRomao/GTK+-2.4.1/gtk+-2.4.1'
make: *** [all] Error 2