[arm-embedded] Backport mainline 171225

[Joey Ye]

Committed

        Backport r171225 from mainline
        2011-03-21  Rainer Orth  <r...@cebitec.uni-bielefeld.de>

        PR bootstrap/48120:
        * configure.ac (pwllib): Use LIBS instead of LDFLAGS.
        Add -lstdc++ -lm to LIBS.
        * configure: Regenerate.

Index: configure
===================================================================
--- configure   (revision 171224)
+++ configure   (revision 171225)
@@ -5725,8 +5725,8 @@
 
 if test "x$with_ppl" != xno; then
   if test "x$pwllib" = x; then
-    saved_LDFLAGS="$LDFLAGS"
-    LDFLAGS="$LDFLAGS $ppllibs"
+    saved_LIBS="$LIBS"
+    LIBS="$LIBS $ppllibs -lstdc++ -lm"
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for
PWL_handle_timeout in -lpwl" >&5
 $as_echo_n "checking for PWL_handle_timeout in -lpwl... " >&6; }
 if test "${ac_cv_lib_pwl_PWL_handle_timeout+set}" = set; then :
@@ -5767,7 +5767,7 @@
   pwllib="-lpwl"
 fi
 
-    LDFLAGS="$saved_LDFLAGS"
+    LIBS="$saved_LIBS"
   fi
 
   ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
Index: configure.ac
===================================================================
--- configure.ac        (revision 171224)
+++ configure.ac        (revision 171225)
@@ -1677,10 +1677,10 @@
 
 if test "x$with_ppl" != xno; then
   if test "x$pwllib" = x; then
-    saved_LDFLAGS="$LDFLAGS"
-    LDFLAGS="$LDFLAGS $ppllibs"
-    AC_CHECK_LIB(pwl,PWL_handle_timeout,[pwllib="-lpwl"])
-    LDFLAGS="$saved_LDFLAGS"
+    saved_LIBS="$LIBS"
+    LIBS="$LIBS $ppllibs -lstdc++ -lm"
+    AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
+    LIBS="$saved_LIBS"
   fi
 
   ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"