problems installing XEmacs

Goodevening! I'm having problems installing XEmacs. I already tried many thing, but I can't solve the problem. I'm installing XEmacs in Ubuntu Linux. It don't seems to have any problem in the configure step. But when I do the make instrution I have the follow error: ... /joao/xemacs-21.4.19/src -DHAVE_CONFIG_H /home/joao/xemacs-21.4.19/lib-src/make-dump-id.c -ldb -lncurses -lm -lutil -o make-dump-id make[1]: Leaving directory `/home/joao/xemacs-21.4.19/lib-src' cd ./lwlib && make all make[1]: Entering directory `/home/joao/xemacs-21.4.19/lwlib' gcc -c -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -fno-strict-aliasing -Wshadow -I. -DHAVE_CONFIG_H -I/usr/X11R6/include lwlib.c gcc -c -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -fno-strict-aliasing -Wshadow -I. -DHAVE_CONFIG_H -I/usr/X11R6/include lwlib-utils.c gcc -c -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -fno-strict-aliasing -Wshadow -I. -DHAVE_CONFIG_H -I/usr/X11R6/include lwlib-config.c gcc -c -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -fno-strict-aliasing -Wshadow -I. -DHAVE_CONFIG_H -I/usr/X11R6/include xlwmenu.c xlwmenu.c:39:28: error: X11/bitmaps/gray: No such file or directory xlwmenu.c: In function 'XlwMenuInitialize': xlwmenu.c:3015: error: 'gray_bits' undeclared (first use in this function) xlwmenu.c:3015: error: (Each undeclared identifier is reported only once xlwmenu.c:3015: error: for each function it appears in.) xlwmenu.c:3016: error: 'gray_width' undeclared (first use in this function) xlwmenu.c:3016: error: 'gray_height' undeclared (first use in this function) make[1]: *** [xlwmenu.o] Error 1 make[1]: Leaving directory `/home/joao/xemacs-21.4.19/lwlib' make: ** [lwlib] Erro 2 Can you help? Thank you for your attention. João Gomes