Make configure print EMACSDATA/DOC.

* configure.in (EMACSDATA, EMACSDOC): If set, print, since they can
have confusing effects on the build.

ChangeLog

 2011-11-22  Glenn Morris  <rgm@gnu.org>
 
+	* configure.in (EMACSDATA, EMACSDOC): If set, print, since they can
+	have confusing effects on the build.  (Bug#6401)
+
 	* Makefile.in (install-arch-dep): Tweak previous change.
 
 2011-11-22  Yavor Doganov  <yavor@gnu.org>

configure.in

@@ -2586,6 +2586,8 @@ if test "${HAVE_NS}" = "yes"; then
     AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
     # See also .m.o rule in Makefile.in */
     # FIXME: are all these flags really needed?  Document here why.  */
+    dnl FIXME this should be renamed to GNUSTEP_CFLAGS, and only
+    dnl used in src/Makefile.in.
     C_SWITCH_X_SYSTEM="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
     ## Extra CFLAGS applied to src/*.m files.
     GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
@@ -3730,6 +3732,13 @@ echo "  Does Emacs use -lxft?                                   ${HAVE_XFT}"
 echo "  Does Emacs use toolkit scroll bars?                     ${USE_TOOLKIT_SCROLL_BARS}"
 echo
 
+if test -n "${EMACSDATA}"; then
+   echo "  Environment variable EMACSDATA set to:                  $EMACSDATA"
+fi
+if test -n "${EMACSDOC}"; then
+   echo "  Environment variable EMACSDOC set to:                   $EMACSDOC"
+fi
+
 if test $USE_XASSERTS = yes; then
    echo "  Compiling with asserts turned on."
    CPPFLAGS="$CPPFLAGS -DXASSERTS=1"