[PATCH] Fix --verbose option and add new --no-silent option

[Charles Wilson]

* libltdl/config/ltmain.m4sh (usage): Document
new --no-silent/--no-quiet options. Spacing changes.
(func_enable_tag): Handle --no-silent/--no-quiet options.
Modified --verbose to actually activate opt_verbose.
New behavior: --silent disables both "normal" output and
func_verbose output.  --verbose enables both "normal"
output and func_verbose output. --no-silent enables
"normal" output, but does not affect func_verbose output.
---
The first of several smaller patches broken out of my 
original "[PATCH] [cygwin|mingw] fix dlpreopen with --disable-static" one:
http://lists.gnu.org/archive/html/libtool-patches/2008-11/msg00019.html

Test suite results (cygwin):
Fails old test demo-exec after demo-shared (this is the failure my
larger patch in the referenced message fixed).
In the new testsuite, fails 25, 74 (which is not a regression on cygwin).

Okay to push?


 libltdl/config/ltmain.m4sh |   30 +++++++++++++++++++-----------
 1 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/libltdl/config/ltmain.m4sh b/libltdl/config/ltmain.m4sh
index db0ea67..3b8f05b 100644
--- a/libltdl/config/ltmain.m4sh
+++ b/libltdl/config/ltmain.m4sh
@@ -33,17 +33,18 @@ m4_divert_push([SCRIPT])# @configure_input@
 #
 # Provide generalized library-building support services.
 #
-#       --config             show all configuration variables
-#       --debug              enable verbose shell tracing
-#   -n, --dry-run            display commands without modifying any files
-#       --features           display basic configuration information and exit
-#       --mode=MODE          use operation mode MODE
-#       --preserve-dup-deps  don't remove duplicate dependency libraries
-#       --quiet, --silent    don't print informational messages
-#       --tag=TAG            use configuration variables from tag TAG
-#   -v, --verbose            print informational messages (default)
-#       --version            print version information
-#   -h, --help, --help-all   print short, long, or detailed help message
+#       --config                 show all configuration variables
+#       --debug                  enable verbose shell tracing
+#   -n, --dry-run                display commands without modifying any files
+#       --features               display basic configuration information, exit
+#       --mode=MODE              use operation mode MODE
+#       --preserve-dup-deps      don't remove duplicate dependency libraries
+#       --quiet, --silent        don't print informational messages
+#       --no-quiet, --no-silent  print informational messages (default)
+#       --tag=TAG                use configuration variables from tag TAG
+#   -v, --verbose                print more informational messages than default
+#       --version                print version information
+#   -h, --help, --help-all       print short, long, or detailed help message
 #
 # MODE must be one of the following:
 #
@@ -319,10 +320,17 @@ func_enable_tag ()
 
       --quiet|--silent)        preserve_args="$preserve_args $opt"
                        opt_silent=:
+                       opt_verbose=false
+                       ;;
+
+      --no-quiet|--no-silent)
+                       preserve_args="$preserve_args $opt"
+                       opt_silent=false
                        ;;
 
       --verbose| -v)   preserve_args="$preserve_args $opt"
                        opt_silent=false
+                       opt_verbose=:
                        ;;
 
       --tag)           test "$#" -eq 0 && func_missing_arg "$opt" && break
-- 
1.6.0.2