diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 747672a43..eaa3433f5 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,15 @@
+2009-11-12  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>
+	    Corinna Vinschen  <corinna@vinschen.de>
+
+	* sysconf.cc (get_nprocs): New function.
+	(get_nprocs_conf): Ditto.
+	(get_avphys_pages): Ditto.
+	(get_phys_pages): Ditto.
+	* cygwin.din: Export them.
+	* include/sys/sysinfo.h: New header, decalre above new functions.
+	* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
+	* posix.sgml: Mention them as GNU extensions.
+
 2009-11-11  Corinna Vinschen  <corinna@vinschen.de>
 
 	* fhandler.h (class fhandler_mailslot): Declare new private method
diff --git a/winsup/cygwin/cygwin.din b/winsup/cygwin/cygwin.din
index a10d18ca0..74c487946 100644
--- a/winsup/cygwin/cygwin.din
+++ b/winsup/cygwin/cygwin.din
@@ -598,8 +598,12 @@ gcvt SIGFE
 _gcvt = gcvt SIGFE
 gcvtf SIGFE
 _gcvtf = gcvtf SIGFE
+get_avphys_pages SIGFE
+get_nprocs SIGFE
+get_nprocs_conf SIGFE
 get_osfhandle SIGFE
 _get_osfhandle = get_osfhandle SIGFE
+get_phys_pages SIGFE
 getaddrinfo = cygwin_getaddrinfo SIGFE
 getc SIGFE
 _getc = getc SIGFE
diff --git a/winsup/cygwin/include/cygwin/version.h b/winsup/cygwin/include/cygwin/version.h
index e88bb9d9a..763a26c7c 100644
--- a/winsup/cygwin/include/cygwin/version.h
+++ b/winsup/cygwin/include/cygwin/version.h
@@ -371,12 +371,13 @@ details. */
       215: CW_EXIT_PROCESS added.
       216: CW_SET_EXTERNAL_TOKEN added.
       217: CW_GET_INSTKEY added.
+      218: Export get_nprocs, get_nprocs_conf, get_phys_pages, get_avphys_pages.
      */
 
      /* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 217
+#define CYGWIN_VERSION_API_MINOR 218
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible
diff --git a/winsup/cygwin/include/sys/sysinfo.h b/winsup/cygwin/include/sys/sysinfo.h
new file mode 100644
index 000000000..1e24c860a
--- /dev/null
+++ b/winsup/cygwin/include/sys/sysinfo.h
@@ -0,0 +1,27 @@
+/* sys/sysinfo.h
+
+   Copyright 2009 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+/* sys/sysinfo.h header file for Cygwin.  */
+
+#ifndef _SYS_SYSINFO_H
+#define _SYS_SYSINFO_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+extern int get_nprocs_conf (void);
+extern int get_nprocs (void);
+extern long get_phys_pages (void);
+extern long get_avphys_pages (void);
+
+__END_DECLS
+
+#endif /* _SYS_SYSINFO_H */
diff --git a/winsup/cygwin/posix.sgml b/winsup/cygwin/posix.sgml
index 06e49d20a..8c88417da 100644
--- a/winsup/cygwin/posix.sgml
+++ b/winsup/cygwin/posix.sgml
@@ -1026,6 +1026,10 @@ also IEEE Std 1003.1-2008 (POSIX.1-2008).</para>
     fopencookie
     fremovexattr
     fsetxattr
+    get_avphys_pages
+    get_phys_pages
+    get_nprocs
+    get_nprocs_conf
     getopt_long
     getopt_long_only
     getxattr
diff --git a/winsup/cygwin/sysconf.cc b/winsup/cygwin/sysconf.cc
index cf403fb77..84aced16a 100644
--- a/winsup/cygwin/sysconf.cc
+++ b/winsup/cygwin/sysconf.cc
@@ -1,7 +1,7 @@
 /* sysconf.cc
 
    Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-   2006, 2007 Red Hat, Inc.
+   2006, 2007, 2009 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -11,6 +11,7 @@ details. */
 
 #include "winsup.h"
 #include <unistd.h>
+#include <sys/sysinfo.h>
 #include "cygerrno.h"
 #include "security.h"
 #include "path.h"
@@ -292,3 +293,27 @@ confstr (int in, char *buf, size_t len)
   set_errno (EINVAL);
   return 0;
 }
+
+extern "C" int
+get_nprocs_conf (void)
+{
+  return get_nproc_values (_SC_NPROCESSORS_CONF);
+}
+
+extern "C" int
+get_nprocs (void)
+{
+  return get_nproc_values (_SC_NPROCESSORS_ONLN);
+}
+
+extern "C" long
+get_phys_pages (void)
+{
+  return get_nproc_values (_SC_PHYS_PAGES);
+}
+
+extern "C" long
+get_avphys_pages (void)
+{
+  return get_avphys (_SC_AVPHYS_PAGES);
+}