--- mysql-dfsg-5.1-5.1.37/configure.in.orig	2009-12-28 23:18:40.513709610 +0100
+++ mysql-dfsg-5.1-5.1.37/configure.in	2009-12-28 23:06:32.445022108 +0100
@@ -1974,7 +1974,7 @@
     [AC_DEFINE([HAVE_VIS_H], [1],[Found vis.h and the strvis() function])])])
 
 AC_CHECK_FUNCS(strlcat strlcpy)
-AC_CHECK_FUNCS(issetugid)
+AC_CHECK_FUNCS(issetugid getuid geteuid getgid getegid)
 AC_CHECK_FUNCS(fgetln)
 AC_CHECK_FUNCS(getline flockfile)
 
--- mysql-dfsg-5.1-5.1.37/configure.orig	2009-12-28 23:18:50.324800051 +0100
+++ mysql-dfsg-5.1-5.1.37/configure	2009-12-28 23:06:21.014800251 +0100
@@ -32077,7 +32077,7 @@
 done
 
 
-for ac_func in issetugid
+for ac_func in issetugid getuid geteuid getgid getegid
 do
 as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 { $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
--- mysql-dfsg-5.1-5.1.37/cmd-line-utils/libedit/el.c.orig	2009-12-28 23:21:20.273570913 +0100
+++ mysql-dfsg-5.1-5.1.37/cmd-line-utils/libedit/el.c	2009-12-28 23:21:26.703705820 +0100
@@ -478,7 +478,8 @@
 
 	fp = NULL;
 	if (fname == NULL) {
-#ifdef HAVE_ISSETUGID
+#if defined(HAVE_ISSETUGID) || (defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
+	&& defined(HAVE_GETGID) && defined(HAVE_GETEGID))
 		static const char elpath[] = "/.editrc";
 /* XXXMYSQL: Portability fix (for which platforms?) */
 #ifdef MAXPATHLEN
@@ -487,8 +488,13 @@
 		char path[4096];
 #endif
 
+#ifdef HAVE_ISSETUGID
 		if (issetugid())
 			return (-1);
+#else
+		if (getuid() != geteuid() || getgid() != getegid())
+			return (-1);
+#endif 
 		if ((ptr = getenv("HOME")) == NULL)
 			return (-1);
 		if (strlcpy(path, ptr, sizeof(path)) >= sizeof(path))