diff --git a/ChangeLog b/ChangeLog
index b2a174628ec..6c21ce7dbbd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2000-08-14  Zack Weinberg  <zack@wolery.cumb.org>
 
+	* configure.in (libstdcxx_flags): Remove -isystem $$s/libio/stdio.
+
 	* configure: Make enable_threads and enable_shared defaults  
 	explicit.  Substitute enable_threads into generated Makefiles.
 	* configure.in: Accept *-*-linux* not just *-*-linux-gnu*.
diff --git a/configure.in b/configure.in
index 4ad311d83ed..3e192f17e09 100644
--- a/configure.in
+++ b/configure.in
@@ -54,7 +54,7 @@ if [ "${enable_libstdcxx_v3}" = "yes" ] && test -d $srcdir/libstdc++-v3; then
 	libstdcxx_flags='`case $$dir in libstdc++-v3) ;; *) test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/mkcheck && $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/mkcheck 2 $$r/$(TARGET_SUBDIR)/libstdc++-v3 $$s/libstdc++-v3 | sed -e '"'s/-I/-isystem /g'"' ;; esac` -L$$r/$(TARGET_SUBDIR)/libstd++-v3/src -L$$r/$(TARGET_SUBDIR)/libstd++-v3/src/.libs'
 else
         libstdcxx_version="target-libio target-libstdc++"
-        libstdcxx_flags='-isystem $$s/libstdc++ -isystem $$s/libstdc++/std -isystem $$s/libstdc++/stl -isystem $$s/libio/ -isystem $$s/libio/stdio -L$$r/$(TARGET_SUBDIR)/libstdc++'
+        libstdcxx_flags='-isystem $$s/libstdc++ -isystem $$s/libstdc++/std -isystem $$s/libstdc++/stl -isystem $$s/libio -L$$r/$(TARGET_SUBDIR)/libstdc++'
 fi
 
 # these tools are built for the host environment