Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/61_all_gcc43-pr24170.patch
http://gcc.gnu.org/PR24170

2008-02-20  Tom Tromey  <tromey@redhat.com>

	PR libgcj/24170:
	* java/io/natFilePosix.cc (File::performList): Don't use
	readdir_r.
	* configure, include/config.h.in: Rebuilt.
	* configure.ac: Don't check for readdir_r.

diff -durN gcc-4.3.1.orig/libjava/configure.ac gcc-4.3.1/libjava/configure.ac
--- gcc-4.3.1.orig/libjava/configure.ac	2008-06-10 14:57:42.000000000 +0200
+++ gcc-4.3.1/libjava/configure.ac	2008-06-10 14:58:13.000000000 +0200
@@ -1030,7 +1030,7 @@
    PLATFORMNET=NoNet
 else
    AC_CHECK_FUNCS([strerror_r select fstat open fsync sleep opendir \
-                   localtime_r readdir_r getpwuid_r getcwd \
+                   localtime_r getpwuid_r getcwd \
 		   access stat lstat mkdir rename rmdir unlink utime chmod readlink \
 		   nl_langinfo setlocale \
 		   inet_pton uname inet_ntoa \
diff -durN gcc-4.3.1.orig/libjava/include/config.h.in gcc-4.3.1/libjava/include/config.h.in
--- gcc-4.3.1.orig/libjava/include/config.h.in	2007-07-31 18:17:21.000000000 +0200
+++ gcc-4.3.1/libjava/include/config.h.in	2008-06-10 14:58:13.000000000 +0200
@@ -214,9 +214,6 @@
 /* Define to 1 if you have the <pwd.h> header file. */
 #undef HAVE_PWD_H
 
-/* Define to 1 if you have the `readdir_r' function. */
-#undef HAVE_READDIR_R
-
 /* Define to 1 if you have the `readlink' function. */
 #undef HAVE_READLINK
 
diff -durN gcc-4.3.1.orig/libjava/java/io/natFilePosix.cc gcc-4.3.1/libjava/java/io/natFilePosix.cc
--- gcc-4.3.1.orig/libjava/java/io/natFilePosix.cc	2007-08-04 23:50:01.000000000 +0200
+++ gcc-4.3.1/libjava/java/io/natFilePosix.cc	2008-06-10 14:58:13.000000000 +0200
@@ -1,6 +1,6 @@
 // natFile.cc - Native part of File class for POSIX.
 
-/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2006
+/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2008
    Free Software Foundation
 
    This file is part of libgcj.
@@ -292,13 +292,7 @@
 
   java::util::ArrayList *list = new java::util::ArrayList ();
   struct dirent *d;
-#if defined(HAVE_READDIR_R) && defined(_POSIX_PTHREAD_SEMANTICS)
-  int name_max = pathconf (buf, _PC_NAME_MAX);
-  char dbuf[sizeof (struct dirent) + name_max + 1];
-  while (readdir_r (dir, (struct dirent *) dbuf, &d) == 0 && d != NULL)
-#else /* HAVE_READDIR_R */
   while ((d = readdir (dir)) != NULL)
-#endif /* HAVE_READDIR_R */
     {
       // Omit "." and "..".
       if (d->d_name[0] == '.'