config/:

* warnings.m4 (ACX_PROG_CC_WARNING_OPTS): Avoid leading dash in
	expr call.
libdecnumber/:
	* configure: Regenerate.
libiberty/:
	* configure: Regenerate.

config/ChangeLog

@@ -1,3 +1,8 @@
+2011-12-20  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* warnings.m4 (ACX_PROG_CC_WARNING_OPTS): Avoid leading dash in
+	expr call.
+
 2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* warnings.m4 (ACX_PROG_CC_WARNING_OPTS)

config/warnings.m4

@@ -32,7 +32,7 @@ for real_option in $1; do
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
   case $real_option in
-    -Wno-*) option=-W`expr $real_option : '-Wno-\(.*\)'` ;;
+    -Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
     *) option=$real_option ;;
   esac
   AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option])

libdecnumber/ChangeLog

@@ -1,3 +1,7 @@
+2011-12-20  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* configure: Regenerate.
+
 2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* configure: Regenerate.

libdecnumber/configure

@@ -3254,7 +3254,7 @@ for real_option in -W -Wall -Wwrite-strings -Wstrict-prototypes \
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
   case $real_option in
-    -Wno-*) option=-W`expr $real_option : '-Wno-\(.*\)'` ;;
+    -Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
     *) option=$real_option ;;
   esac
   as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`

libiberty/ChangeLog

@@ -1,3 +1,7 @@
+2011-12-20  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* configure: Regenerate.
+
 2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* configure: Regenerate.

libiberty/configure

@@ -3925,7 +3925,7 @@ for real_option in -W -Wall -Wwrite-strings -Wc++-compat \
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
   case $real_option in
-    -Wno-*) option=-W`expr $real_option : '-Wno-\(.*\)'` ;;
+    -Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
     *) option=$real_option ;;
   esac
   as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`