diff -urN gcc-4.0.0-100/libstdc++-v3/fragment.am gcc-4.0.0/libstdc++-v3/fragment.am
--- gcc-4.0.0-100/libstdc++-v3/fragment.am	2004-10-25 15:32:40.000000000 -0500
+++ gcc-4.0.0/libstdc++-v3/fragment.am	2005-04-28 21:48:43.000000000 -0500
@@ -18,5 +18,5 @@
 	$(WARN_FLAGS) $(WERROR) -fdiagnostics-show-location=once
 
 # -I/-D flags to pass when compiling.
-AM_CPPFLAGS = $(GLIBCXX_INCLUDES)
+AM_CPPFLAGS = $(GLIBCXX_INCLUDES) -I$(toplevel_srcdir)/include
 
diff -urN gcc-4.0.0-100/libstdc++-v3/libmath/Makefile.am gcc-4.0.0/libstdc++-v3/libmath/Makefile.am
--- gcc-4.0.0-100/libstdc++-v3/libmath/Makefile.am	2003-08-27 16:29:42.000000000 -0500
+++ gcc-4.0.0/libstdc++-v3/libmath/Makefile.am	2005-04-28 21:48:43.000000000 -0500
@@ -32,7 +32,7 @@
 
 libmath_la_SOURCES = stubs.c
 
-AM_CPPFLAGS = $(CANADIAN_INCLUDES)
+AM_CPPFLAGS = $(CANADIAN_INCLUDES) -I$(toplevel_srcdir)/include
 
 # Only compiling "C" sources in this directory.
 LIBTOOL = @LIBTOOL@ --tag CC
