## -*- Autoconf -*-
-# Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+# Copyright (C) 2009-2012 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
-# serial 2
-
# AM_SILENT_RULES([DEFAULT])
# --------------------------
# Enable less verbose build rules; with the default set to DEFAULT
-# (`yes' being less verbose, `no' or empty being verbose).
+# ("yes" being less verbose, "no" or empty being verbose).
AC_DEFUN([AM_SILENT_RULES],
-[AC_ARG_ENABLE([silent-rules],
-[ --enable-silent-rules less verbose build output (undo: `make V=1')
- --disable-silent-rules verbose build output (undo: `make V=0')])
-case $enable_silent_rules in
-yes) AM_DEFAULT_VERBOSITY=0;;
-no) AM_DEFAULT_VERBOSITY=1;;
-*) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+ [--enable-silent-rules],
+ [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
+ [--disable-silent-rules],
+ [verbose build output (undo: "make V=0")])dnl
+])
+case $enable_silent_rules in @%:@ (((
+ yes) AM_DEFAULT_VERBOSITY=0;;
+ no) AM_DEFAULT_VERBOSITY=1;;
+ *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
esac
dnl
-dnl A few `make' implementations (e.g., NonStop OS and NextStep)
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
dnl do not support nested variable expansions.
dnl See automake bug#9928 and bug#10237.
am_make=${MAKE-make}
am_cv_make_support_nested_variables=no
fi])
if test $am_cv_make_support_nested_variables = yes; then
- dnl Using `$V' instead of `$(V)' breaks IRIX make.
+ dnl Using '$V' instead of '$(V)' breaks IRIX make.
AM_V='$(V)'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
else