Patch #439995 (slightly modified from the uploaded version):
Work around Linux's nonstandard nice() systemcall, which does not return the
new priority.
This closes SF bug #439990.
diff --git a/config.h.in b/config.h.in
index 4dab4e0..a3b7e9e 100644
--- a/config.h.in
+++ b/config.h.in
@@ -1,4 +1,4 @@
-/* config.h.in. Generated automatically from configure.in by autoheader. */
+/* config.h.in. Generated automatically from configure.in by autoheader 2.13. */
/* Define if on AIX 3.
System headers sometimes define this.
@@ -299,6 +299,9 @@
/* The number of bytes in a wchar_t. */
#undef SIZEOF_WCHAR_T
+/* Define if you have the _getpty function. */
+#undef HAVE__GETPTY
+
/* Define if you have the alarm function. */
#undef HAVE_ALARM
@@ -392,8 +395,8 @@
/* Define if you have the getpid function. */
#undef HAVE_GETPID
-/* Define if you have the _getpty function. */
-#undef HAVE__GETPTY
+/* Define if you have the getpriority function. */
+#undef HAVE_GETPRIORITY
/* Define if you have the getpwent function. */
#undef HAVE_GETPWENT
@@ -557,14 +560,14 @@
/* Define if you have the waitpid function. */
#undef HAVE_WAITPID
-/* Define if you have the <db_185.h> header file. */
-#undef HAVE_DB_185_H
+/* Define if you have the <db.h> header file. */
+#undef HAVE_DB_H
/* Define if you have the <db1/ndbm.h> header file. */
#undef HAVE_DB1_NDBM_H
-/* Define if you have the <db.h> header file. */
-#undef HAVE_DB_H
+/* Define if you have the <db_185.h> header file. */
+#undef HAVE_DB_185_H
/* Define if you have the <dirent.h> header file. */
#undef HAVE_DIRENT_H