Fix PR 35942: remove -lstdc++ from libtool postdeps for CXX.

libstdc++-v3/ChangeLog:
2010-01-04  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	PR libstdc++/35942
	* configure.ac: Remove -lstdc++ from libtool's postdeps_CXX.
	* configure: Regenerate.


Index: gcc-4.3.3/libstdc++-v3/configure
===================================================================
--- gcc-4.3.3.orig/libstdc++-v3/configure	2010-03-26 17:57:51.000000000 +0000
+++ gcc-4.3.3/libstdc++-v3/configure	2010-03-26 17:57:58.000000000 +0000
@@ -13759,6 +13759,9 @@
 
 
 
+# Eliminate -lstdc++ addition to postdeps for cross compiles.
+postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'`
+
 # Possibly disable most of the library.
 ## TODO: Consider skipping unncessary tests altogether in this case, rather
 ## than just ignoring the results.  Faster /and/ more correct, win win.
Index: gcc-4.3.3/libstdc++-v3/configure.ac
===================================================================
--- gcc-4.3.3.orig/libstdc++-v3/configure.ac	2010-03-26 17:57:54.000000000 +0000
+++ gcc-4.3.3/libstdc++-v3/configure.ac	2010-03-26 17:57:58.000000000 +0000
@@ -89,6 +89,9 @@
 AC_SUBST(enable_shared)
 AC_SUBST(enable_static)
 
+# Eliminate -lstdc++ addition to postdeps for cross compiles.
+postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'`
+
 # Possibly disable most of the library.
 ## TODO: Consider skipping unncessary tests altogether in this case, rather
 ## than just ignoring the results.  Faster /and/ more correct, win win.