(datarootdir): Define.

Makefile.in

@@ -110,6 +110,10 @@ exec_prefix=@exec_prefix@
 # run directly (like etags).
 bindir=@bindir@
 
+# The root of the directory tree for read-only architecture-independent
+# data files.  ${datadir}, ${infodir} and ${mandir} are based on this.
+datarootdir=@datarootdir@
+
 # Where to install architecture-independent data files.	 ${lispdir}
 # and ${etcdir} are subdirectories of this.
 datadir=@datadir@

leim/Makefile.in

@@ -29,6 +29,7 @@ SHELL = /bin/sh
 # Here are the things that we expect ../configure to edit.
 version=@version@
 prefix=@prefix@
+datarootdir=@datarootdir@
 datadir=@datadir@
 srcdir=@srcdir@