Build error with Ubuntu 11.10

Hi there ...

trying to build em8300 0.18.0 for Ubuntu and getting this one:

Making all in overlay
make[2]: Entering directory `/build/buildd/em8300-0.18.0/overlay'
x86_64-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../include -I../include   -Wall -g 
-O2 -Wall -D_FILE_OFFSET_BITS=64 -pthread -I/usr/include/gtk-2.0 -
I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0 -
I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pango-1.0 -
I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-
gnu/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -
I/usr/include/libpng12   -Wall -g -O2 -MT autocal.o -MD -MP -MF 
.deps/autocal.Tpo -c -o autocal.o autocal.c
mv -f .deps/autocal.Tpo .deps/autocal.Po
x86_64-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../include -I../include   -Wall -g 
-O2 -Wall -D_FILE_OFFSET_BITS=64 -pthread -I/usr/include/gtk-2.0 -
I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0 -
I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pango-1.0 -
I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-
gnu/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -
I/usr/include/libpng12   -Wall -g -O2 -MT allblackbut.o -MD -MP -MF 
.deps/allblackbut.Tpo -c -o allblackbut.o allblackbut.c
mv -f .deps/allblackbut.Tpo .deps/allblackbut.Po
x86_64-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../include -I../include   -Wall -g 
-O2 -Wall -D_FILE_OFFSET_BITS=64 -pthread -I/usr/include/gtk-2.0 -
I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0 -
I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pango-1.0 -
I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-
gnu/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -
I/usr/include/libpng12   -Wall -g -O2 -MT overlay.o -MD -MP -MF 
.deps/overlay.Tpo -c -o overlay.o overlay.c
mv -f .deps/overlay.Tpo .deps/overlay.Po
x86_64-linux-gnu-gcc -Wall -g -O2 -Wall -D_FILE_OFFSET_BITS=64 -pthread -
I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -
I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -
I/usr/include/pango-1.0 -I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -
I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/pixman-1 -
I/usr/include/freetype2 -I/usr/include/libpng12   -Wall -g -O2 -pthread -lgtk-
x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lpangocairo-1.0 -
lgdk_pixbuf-2.0 -lcairo -lpango-1.0 -lfreetype -lfontconfig -lgobject-2.0 -
lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0   -Wl,-Bsymbolic-functions -o 
autocal autocal.o allblackbut.o overlay.o  
autocal.o: In function `main':
/build/buildd/em8300-0.18.0/overlay/autocal.c:47: undefined reference to 
`XOpenDisplay'
/build/buildd/em8300-0.18.0/overlay/autocal.c:61: undefined reference to 
`g_strerror'
/build/buildd/em8300-0.18.0/overlay/autocal.c:64: undefined reference to 
`gtk_init'
/build/buildd/em8300-0.18.0/overlay/autocal.c:65: undefined reference to 
`gtk_message_dialog_new'
/build/buildd/em8300-0.18.0/overlay/autocal.c:71: undefined reference to 
`gtk_window_get_type'
/build/buildd/em8300-0.18.0/overlay/autocal.c:71: undefined reference to 
`g_type_check_instance_cast'
/build/buildd/em8300-0.18.0/overlay/autocal.c:71: undefined reference to 
`gtk_window_set_title'
/build/buildd/em8300-0.18.0/overlay/autocal.c:73: undefined reference to 
`gtk_dialog_get_type'
/build/buildd/em8300-0.18.0/overlay/autocal.c:73: undefined reference to 
`g_type_check_instance_cast'
/build/buildd/em8300-0.18.0/overlay/autocal.c:73: undefined reference to 
`gtk_dialog_run'
/build/buildd/em8300-0.18.0/overlay/autocal.c:74: undefined reference to 
`gtk_widget_destroy'
allblackbut.o: In function `AllBlackButClose':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:73: undefined reference to 
`XSync'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:75: undefined reference to 
`XDestroyWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:77: undefined reference to 
`XUngrabPointer'
allblackbut.o: In function `AllBlackButInit':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:97: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:98: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:99: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:100: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:101: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:112: undefined reference to 
`XCreateWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:122: undefined reference to 
`XMapWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:123: undefined reference to 
`XRaiseWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:128: undefined reference to 
`XCreateGC'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:132: undefined reference to 
`XCreateBitmapFromData'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:133: undefined reference to 
`XCreateBitmapFromData'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:134: undefined reference to 
`XCreatePixmapCursor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:136: undefined reference to 
`XFreePixmap'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:137: undefined reference to 
`XFreePixmap'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:139: undefined reference to 
`XGrabPointer'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:142: undefined reference to 
`XGrabPointer'
allblackbut.o: In function `AllBlackButPattern':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:154: undefined reference to 
`XClearWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:155: undefined reference to 
`XSetForeground'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:156: undefined reference to 
`XFillRectangle'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:157: undefined reference to 
`XFlush'
allblackbut.o: In function `AllBlackButPatternRGB':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:168: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:171: undefined reference to 
`XClearWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:172: undefined reference to 
`XSetForeground'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:173: undefined reference to 
`XFillRectangle'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:174: undefined reference to 
`XFlush'
allblackbut.o: In function `AllDrawRectangle':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:185: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:186: undefined reference to 
`XAllocColor'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:189: undefined reference to 
`XClearWindow'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:190: undefined reference to 
`XSetForeground'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:191: undefined reference to 
`XFillRectangle'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:192: undefined reference to 
`XSetForeground'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:193: undefined reference to 
`XFillRectangle'
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:194: undefined reference to 
`XFlush'
allblackbut.o: In function `AllBlackButClose':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:78: undefined reference to 
`XFlush'
allblackbut.o: In function `AllBlackButPattern':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:158: undefined reference to 
`XSync'
allblackbut.o: In function `AllBlackButPatternRGB':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:175: undefined reference to 
`XSync'
allblackbut.o: In function `AllDrawRectangle':
/build/buildd/em8300-0.18.0/overlay/allblackbut.c:195: undefined reference to 
`XSync'
overlay.o: In function `col_interp':
/build/buildd/em8300-0.18.0/overlay/overlay.c:298: undefined reference to 
`rintf'
/build/buildd/em8300-0.18.0/overlay/overlay.c:298: undefined reference to 
`rintf'
collect2: ld returned 1 exit status
make[2]: *** [autocal] Error 1
make[2]: Leaving directory `/build/buildd/em8300-0.18.0/overlay'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/em8300-0.18.0'
make: *** [build-stamp] Error 2

What to do?

Regards Roman
-- 

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