diff --git a/ksh-20100309-compsubst.patch b/ksh-20100309-compsubst.patch
new file mode 100644
index 0000000..d2bed21
--- /dev/null
+++ b/ksh-20100309-compsubst.patch
@@ -0,0 +1,11 @@
+--- a/src/cmd/ksh93/sh/jobs.c	2010-03-10 23:57:41.000000000 +0530
++++ b/src/cmd/ksh93/sh/jobs.c	2010-04-20 18:12:15.000000000 +0530
+@@ -1341,7 +1341,7 @@ int	job_wait(register pid_t pid)
+ 		sfprintf(sfstderr,"ksh: job line %4d: wait pid=%d critical=%d flags=%o\n",__LINE__,getpid(),job.in_critical,pw->p_flag);
+ #endif /* DEBUG*/
+ 	errno = 0;
+-	if(sh.coutpipe>=0 && sh.cpid==lastpid)
++	if(sh.coutpipe>=0 && sh.cpid && sh.cpid==lastpid )
+ 	{
+ 		sh_close(sh.coutpipe);
+ 		sh_close(sh.cpipe[1]);
diff --git a/ksh-20100309-fixwhence.patch b/ksh-20100309-fixwhence.patch
new file mode 100644
index 0000000..5b3cbff
--- /dev/null
+++ b/ksh-20100309-fixwhence.patch
@@ -0,0 +1,14 @@
+diff -up ksh-20100309/src/cmd/ksh93/bltins/whence.c.fixwh ksh-20100309/src/cmd/ksh93/bltins/whence.c
+--- ksh-20100309/src/cmd/ksh93/bltins/whence.c.fixwh	2008-09-19 16:13:40.000000000 +0200
++++ ksh-20100309/src/cmd/ksh93/bltins/whence.c	2010-04-29 12:03:22.744013139 +0200
+@@ -234,7 +234,10 @@ static int whence(Shell_t *shp,char **ar
+ 				}
+ 			}
+ 			if(flags&Q_FLAG)
++			{
+ 				r |= !cp;
++				pp = 0;
++			}
+ 			else if(cp)
+ 			{
+ 				if(flags&V_FLAG)