diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 2e7c3442cf1..b2d9121c150 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,10 @@
+2000-10-09  Richard Henderson  <rth@cygnus.com>
+
+	* libsupc++/pure.cc: New file.
+	* libsupc++/Makefile.am (INCLUDES): Add top_builddir.
+	(sources): Add pure.cc.
+	* libsupc++/Makefile.in: Regenerate.
+
 2000-10-09  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>
 
 	* docs/configopts.html: Edit.
diff --git a/libstdc++-v3/libsupc++/Makefile.am b/libstdc++-v3/libsupc++/Makefile.am
index 87693567137..fe6ecea62a8 100644
--- a/libstdc++-v3/libsupc++/Makefile.am
+++ b/libstdc++-v3/libsupc++/Makefile.am
@@ -47,7 +47,7 @@ LIBSUPCXX_INCLUDES = -I$(top_srcdir)/libsupc++/include
 INCLUDES = \
 	-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include \
 	$(LIBSUPCXX_INCLUDES) -I$(GLIBCPP_INCLUDES) \
-	$(CONFIG_INCLUDES)
+	$(CONFIG_INCLUDES) -I$(top_builddir)
 
 headers = \
 	include/cxxabi.h \
@@ -67,6 +67,7 @@ sources = \
 	new_opnt.cc \
 	new_opv.cc \
 	new_opvnt.cc \
+	pure.cc \
 	tinfo.cc \
 	tinfo2.cc \
 	vec.cc
diff --git a/libstdc++-v3/libsupc++/Makefile.in b/libstdc++-v3/libsupc++/Makefile.in
index 526843b1bec..4a71cdb20e4 100644
--- a/libstdc++-v3/libsupc++/Makefile.in
+++ b/libstdc++-v3/libsupc++/Makefile.in
@@ -115,13 +115,13 @@ noinst_LTLIBRARIES = libsupc++convenience.la
 
 LIBSUPCXX_INCLUDES = -I$(top_srcdir)/libsupc++/include
 
-INCLUDES =  	-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include 	$(LIBSUPCXX_INCLUDES) -I$(GLIBCPP_INCLUDES) 	$(CONFIG_INCLUDES)
+INCLUDES =  	-I$(top_srcdir)/../gcc -I$(top_srcdir)/../include 	$(LIBSUPCXX_INCLUDES) -I$(GLIBCPP_INCLUDES) 	$(CONFIG_INCLUDES)	-I$(top_builddir)
 
 
 headers =  	include/cxxabi.h 	include/exception 	include/new 	include/new.h 	include/typeinfo
 
 
-sources =  	del_op.cc 	del_opnt.cc 	del_opv.cc 	del_opvnt.cc 	exception.cc 	new_handler.cc 	new_op.cc 	new_opnt.cc 	new_opv.cc 	new_opvnt.cc 	tinfo.cc 	tinfo2.cc 	vec.cc
+sources =  	del_op.cc 	del_opnt.cc 	del_opv.cc 	del_opvnt.cc 	exception.cc 	new_handler.cc 	new_op.cc 	new_opnt.cc 	new_opv.cc 	new_opvnt.cc 	pure.cc 	tinfo.cc 	tinfo2.cc 	vec.cc
 
 
 libsupc___la_SOURCES = $(sources)
@@ -169,12 +169,12 @@ libsupc__convenience_la_LDFLAGS =
 libsupc__convenience_la_LIBADD = 
 libsupc__convenience_la_OBJECTS =  del_op.lo del_opnt.lo del_opv.lo \
 del_opvnt.lo exception.lo new_handler.lo new_op.lo new_opnt.lo \
-new_opv.lo new_opvnt.lo tinfo.lo tinfo2.lo vec.lo
+new_opv.lo new_opvnt.lo pure.lo tinfo.lo tinfo2.lo vec.lo
 libsupc___la_LDFLAGS = 
 libsupc___la_LIBADD = 
 libsupc___la_OBJECTS =  del_op.lo del_opnt.lo del_opv.lo del_opvnt.lo \
 exception.lo new_handler.lo new_op.lo new_opnt.lo new_opv.lo \
-new_opvnt.lo tinfo.lo tinfo2.lo vec.lo
+new_opvnt.lo pure.lo tinfo.lo tinfo2.lo vec.lo
 CXXFLAGS = @CXXFLAGS@
 CXXLD = $(CXX)
 DIST_COMMON =  Makefile.am Makefile.in configure configure.in
diff --git a/libstdc++-v3/libsupc++/pure.cc b/libstdc++-v3/libsupc++/pure.cc
new file mode 100644
index 00000000000..56e2f06da8c
--- /dev/null
+++ b/libstdc++-v3/libsupc++/pure.cc
@@ -0,0 +1,27 @@
+#include <bits/c++config.h>
+
+#ifdef _GLIBCPP_HAVE_UNISTD_H
+#include <unistd.h>
+#define writestr(str)	write(2, str, sizeof(str) - 1)
+#ifdef __GNU_LIBRARY__
+  /* Avoid forcing the library's meaning of `write' on the user program
+     by using the "internal" name (for use within the library).  */
+#define write(fd, buf, n)	__write((fd), (buf), (n))
+#endif
+#else
+#include <stdio.h>
+#define writestr(str)	fputs(str, stderr)
+#endif
+
+extern "C" {
+
+extern void __terminate(void) __attribute__ ((__noreturn__));
+
+void
+__pure_virtual (void)
+{
+  writestr ("pure virtual method called\n");
+  __terminate ();
+}
+
+}