[PATCHv2 5/6] gdb/configure: use AC_MSG_NOTICE not a direct echo call

[Andrew Burgess <aburgess@redhat.com>]

After the recent commits, I noticed that GDB's configure script would
still emit two lines even when run in silent mode.  If you touch
gdb/Makefile.in and then run 'make all' in the gdb/ build directory
you'll see this:

    GEN    config.status
  enable_sim = no
  enableval = no

Obviously the 'no' might be 'yes' depending on how you actually
configured GDB.

This is caused by two direct invocations of 'echo' in GDB's
configure.ac script.

In this commit I replace these calls with use of AC_MSG_NOTICE
instead.  Now when configure is run with the --silent command line
option these lines will not be printed.

There should be no changes in the built GDB after this commit.
---
 gdb/configure    | 6 ++++--
 gdb/configure.ac | 4 ++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/gdb/configure b/gdb/configure
index d0fd1760b88..ffbc14493e2 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -32848,8 +32848,10 @@ fi
 #
 # Check whether --enable-sim was given.
 if test "${enable_sim+set}" = set; then :
-  enableval=$enable_sim; echo "enable_sim = $enable_sim";
- echo "enableval = ${enableval}";
+  enableval=$enable_sim; { $as_echo "$as_me:${as_lineno-$LINENO}: enable_sim = $enable_sim" >&5
+$as_echo "$as_me: enable_sim = $enable_sim" >&6;};
+ { $as_echo "$as_me:${as_lineno-$LINENO}: enableval = ${enableval}" >&5
+$as_echo "$as_me: enableval = ${enableval}" >&6;};
  case "${enableval}" in
   yes) ignore_sim=false ;;
   no)  ignore_sim=true ;;
diff --git a/gdb/configure.ac b/gdb/configure.ac
index aa91bfb3a17..28e750b6b43 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -2032,8 +2032,8 @@ AC_PATH_X
 #
 AC_ARG_ENABLE(sim,
 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
-[echo "enable_sim = $enable_sim";
- echo "enableval = ${enableval}";
+[AC_MSG_NOTICE([enable_sim = $enable_sim]);
+ AC_MSG_NOTICE([enableval = ${enableval}]);
  case "${enableval}" in
   yes) ignore_sim=false ;;
   no)  ignore_sim=true ;;
-- 
2.25.4