[newlib-cygwin] respect datarootdir

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=3bc912c02b3cd6692313e7e3cdd8acd0685483d1

commit 3bc912c02b3cd6692313e7e3cdd8acd0685483d1
Author: Peter Foley <pefoley2@pefoley.com>
Date:   Sat Mar 19 13:45:57 2016 -0400

    respect datarootdir
    
    Recent versions of autoconf define datadir/infodir in terms of
    datarootdir. Add it.
    
    winsup/ChangeLog
    * Makefile.in: define datarootdir
    
    Signed-off-by: Peter Foley <pefoley2@pefoley.com>

Diff:
---
 winsup/Makefile.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/winsup/Makefile.in b/winsup/Makefile.in
index 29ef22a..1fdf93a 100644
--- a/winsup/Makefile.in
+++ b/winsup/Makefile.in
@@ -33,6 +33,7 @@ endif
 else
 tooldir:=$(exec_prefix)/$(target_alias)
 endif
+datarootdir:=@datarootdir@
 datadir:=@datadir@
 infodir:=@infodir@
 includedir:=@includedir@