gdb/configure: use AC_MSG_NOTICE not a direct echo call

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.

Approved-By: Simon Marchi <simon.marchi@efficios.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/gdb/configure b/gdb/configure
index d0fd176..ffbc144 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 ;;