system/fsv: Fix building with the newer autotools.

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>

system/fsv/fsv.SlackBuild

@@ -71,7 +71,9 @@ sed -i \
   -e 's/netscape -no-.* > /firefox %s > /' \
   src/dialog.c
 
-autoreconf -if
+# thanks AUR!
+sed -i 's/@DATADIRNAME@/share/' po/Makefile.in.in
+./autogen.sh
 
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \