Gnu Emacs and OpenWindows

[Dr. A.Bykat]

The other day I decided to install Gnu 18.57 under OpenWindows. Tried both
build-install and make, but without success. It seems that OpenWindows
does not have the X11/X10.h file which is needed by XMenuInt.h:

    XMenuInt.h: 21: Can't find include file X11/X10.h

Has any body compiled successfully Gnu Emacs 18.57 under OpenWindows?
Could you send me the missing file(s)?

AB

PS.Yes, I know, leaving #define HAVE_X_MENU commented out and faking the
X10.h will work. But then there is no menu support in emacs, etc.