--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/ksh93/patches/240-22461939.patch	Wed Mar 16 03:43:00 2016 -0700
@@ -0,0 +1,48 @@
+This fix has been developed inhouse. Patch has been submitted upstream but 
+has not been accepted yet. The details can be found at
+https://github.com/att/ast/issues/6
+--- INIT.2012-08-01.old/src/cmd/ksh93/edit/emacs.c	2016-01-18 03:52:58.380801240 -0800
++++ INIT.2012-08-01/src/cmd/ksh93/edit/emacs.c	2016-02-05 01:39:08.350312914 -0800
+@@ -90,6 +90,7 @@
+     static int	print(int);
+     static int	_isword(int);
+ #   define  isword(c)	_isword(out[c])
++#   define digit(c)	((c&~STRIP)==0 && isdigit(c))
+ 
+ #else
+ #   define gencpy(a,b)	strcpy((char*)(a),(char*)(b))
+@@ -97,6 +98,7 @@
+ #   define genlen(str)	strlen(str)
+ #   define print(c)	isprint(c)
+ #   define isword(c)	(isalnum(out[c]) || (out[c]=='_'))
++#   define digit(c)	isdigit(c)
+ #endif /*SHOPT_MULTIBYTE */
+ 
+ typedef struct _emacs_
+@@ -317,7 +319,7 @@
+ 			count = 1;
+ 		adjust = -1;
+ 		i = cur;
+-		if(c!='\t' && c!=ESC && !isdigit(c))
++		if(c!='\t' && c!=ESC && !digit(c))
+ 			ep->ed->e_tabcount = 0;
+ 		switch(c)
+ 		{
+@@ -775,7 +777,7 @@
+ 	int digit,ch;
+ 	digit = 0;
+ 	value = 0;
+-	while ((i=ed_getchar(ep->ed,0)),isdigit(i))
++	while ((i=ed_getchar(ep->ed,0)),digit(i))
+ 	{
+ 		value *= 10;
+ 		value += (i - '0');
+@@ -1013,7 +1015,7 @@
+ 				{
+ 					i=ed_getchar(ep->ed,0);
+ 					ed_ungetchar(ep->ed,i);
+-					if(isdigit(i))
++					if(digit(i))
+ 						ed_ungetchar(ep->ed,ESC);
+ 				}
+ 			}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/ksh93/patches/245-22550551.patch	Wed Mar 16 03:43:00 2016 -0700
@@ -0,0 +1,120 @@
+This issue has been fixed upstream in the 2016-01-10-beta version.
+--- INIT.2012-08-01.old/src/cmd/ksh93/sh/jobs.c	2015-10-30 05:05:17.556367591 -0700
++++ INIT.2012-08-01.new/src/cmd/ksh93/sh/jobs.c	2016-02-23 04:23:52.229101513 -0800
+@@ -58,6 +58,7 @@
+ 	struct jobsave	*next;
+ 	pid_t		pid;
+ 	unsigned short	exitval;
++	unsigned short	env;
+ };
+ 
+ static struct jobsave *job_savelist;
+@@ -133,7 +134,7 @@
+ #define P_BG		01000
+ #endif /* SHOPT_BGX */
+ 
+-static int		job_chksave(pid_t);
++static int		job_chksave(pid_t,long);
+ static struct process	*job_bypid(pid_t);
+ static struct process	*job_byjid(int);
+ static char		*job_sigmsg(int);
+@@ -233,9 +234,9 @@
+ static struct jobsave *jobsave_create(pid_t pid)
+ {
+ 	register struct jobsave *jp = job_savelist;
+-	job_chksave(pid);
++	job_chksave(pid,-1);
+ 	if(++bck.count > shgd->lim.child_max)
+-		job_chksave(0);
++		job_chksave(0,-1);
+ 	if(jp)
+ 	{
+ 		njob_savelist--;
+@@ -425,7 +426,7 @@
+ 		if(pid<=0)
+ 			break;
+ 		if(wstat==0)
+-			job_chksave(pid);
++			job_chksave(pid,-1);
+ 		flags |= WNOHANG;
+ 		job.waitsafe++;
+ 		jp = 0;
+@@ -1393,7 +1394,7 @@
+ 	else
+ 		pw->p_name = -1;
+ #endif /* JOBS */
+-	if ((val = job_chksave(pid))>=0 && !jobfork)
++	if ((val = job_chksave(pid,pw->p_env))>=0 && !jobfork)
+ 	{
+ 		pw->p_exit = val;
+ 		if(pw->p_exit==SH_STOPSIG)
+@@ -1515,7 +1516,7 @@
+ 		if(!(pw=job_bypid(pid)))
+ 		{
+ 			/* check to see whether job status has been saved */
+-			if((shp->exitval = job_chksave(pid)) < 0)
++			if((shp->exitval = job_chksave(pid,shp->curenv)) < 0)
+ 				shp->exitval = ERROR_NOENT;
+ 			exitset();
+ 			job_unlock();
+@@ -1937,7 +1938,7 @@
+  * if pid==0, then oldest saved process is deleted
+  * If pid is not found a -1 is returned.
+  */
+-static int job_chksave(register pid_t pid)
++static int job_chksave(register pid_t pid, long env)
+ {
+ 	register struct jobsave *jp = bck.list, *jpold=0;
+ 	register int r= -1;
+@@ -1957,9 +1958,10 @@
+ 	{
+ 		count = bp->count;
+ 		jp = bp->list;
++		jpold = 0;
+ 		goto again;
+ 	}
+-	if(jp)
++	if(jp && (env<0 || jp->env==env))
+ 	{
+ 		r = 0;
+ 		if(pid)
+@@ -1996,15 +1998,18 @@
+ 
+ void job_subrestore(void* ptr)
+ {
+-	register struct jobsave *jp;
++	register struct jobsave *jp,*jpnext;
+ 	register struct back_save *bp = (struct back_save*)ptr;
+ 	register struct process *pw, *px, *pwnext;
+ 	struct jobsave *end=NULL;
++	int i=0;
+ 	job_lock();
+-	for(jp=bck.list; jp; jp=jp->next)
++	for(jp=bck.list; jp; jp=jpnext,i++)
+ 	{
+-		if (!jp->next)
++		if (!(jpnext=jp->next) || jp==jpnext)
+ 			end = jp;
++		if(i>=shgd->lim.child_max)
++			break;
+ 	}
+ 	if(end)
+ 		end->next = bp->list;
+@@ -2013,7 +2018,7 @@
+ 	bck.count += bp->count;
+ 	bck.prev = bp->prev;
+ 	while(bck.count > shgd->lim.child_max)
+-		job_chksave(0);
++		job_chksave(0,-1);
+ 	for(pw=job.pwlist; pw; pw=pwnext)
+ 	{
+ 		pwnext = pw->p_nxtjob;
+@@ -2051,7 +2056,7 @@
+ 		job.in_critical = 0;
+ 		break;
+ 	default:
+-		job_chksave(parent);
++		job_chksave(parent,-1);
+ 		jobfork=0;
+ 		job_unlock();
+ 		break;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/ksh93/patches/250-22561374.patch	Wed Mar 16 03:43:00 2016 -0700
@@ -0,0 +1,15 @@
+This fix has been developed inhouse. Patch has been submitted upstream but 
+has not been accepted yet. The details can be found at
+https://github.com/att/ast/issues/7
+--- INIT.2012-08-01.old/src/cmd/ksh93/sh/subshell.c	2016-03-01 04:01:06.513890578 -0800
++++ INIT.2012-08-01/src/cmd/ksh93/shsubshell.c	2016-03-01 04:02:43.617872391 -0800
+@@ -260,9 +260,6 @@
+ 	shp = sp->shp;
+ 	dp = shp->var_tree;
+ 
+-	/* don't bother to save if in newer scope */
+-	if(sp->var!=shp->var_tree && sp->var!=shp->var_base && shp->last_root==shp->var_tree)
+-		return(np);
+ 	if((ap=nv_arrayptr(np)) && (mp=nv_opensub(np)))
+ 	{
+ 		shp->last_root = ap->table;