diff --git a/ksh.changes b/ksh.changes
index 4009ae2..360c472 100644
--- a/ksh.changes
+++ b/ksh.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Thu Dec 20 12:48:02 UTC 2012 - werner@suse.de
+
+- Add ksh93-dttree-crash.dif - Allow empty strings in (dt)trees
+  (bnc#795324)
+- Modify ksh93-jobs.dif - make sure that tty is closed even if an
+  interrupt has been happen at close and also be aware that the
+  return value of tcgetpgrp() is greater than `1' that does not
+  match the process group ID of any existing process group (bnc#790315)
+
 -------------------------------------------------------------------
 Fri Oct 26 15:05:09 UTC 2012 - coolo@suse.com
 
diff --git a/ksh.spec b/ksh.spec
index d4027a9..cafae45 100644
--- a/ksh.spec
+++ b/ksh.spec
@@ -114,6 +114,7 @@ Patch27:        astksh_builtin_poll20120806_001.diff
 Patch28:        ksh93-env.dif
 Patch29:        ksh93-zerofill.dif
 Patch30:        ksh93-pathtemp.dif
+Patch31:        ksh93-dttree-crash.dif
 Patch42:        ksh-locale.patch
 
 %description
@@ -200,6 +201,7 @@ fi
 %patch28
 %patch29
 %patch30
+%patch31
 
 %build
   #
diff --git a/ksh93-dttree-crash.dif b/ksh93-dttree-crash.dif
new file mode 100644
index 0000000..7bb8c52
--- /dev/null
+++ b/ksh93-dttree-crash.dif
@@ -0,0 +1,11 @@
+--- src/lib/libast/include/cdt.h
++++ src/lib/libast/include/cdt.h	2012-12-20 11:37:28.641452879 +0000
+@@ -313,7 +313,7 @@ _END_EXTERNS_
+ #define _DTCMP(dt,k1,k2,dc) \
+ 			((dc)->comparf  ? (*(dc)->comparf)((dt), (k1), (k2), (dc)) : \
+ 			 (dc)->size > 0 ? memcmp((Void_t*)(k1), ((Void_t*)k2), (dc)->size) : \
+-					  strcmp((char*)(k1), ((char*)k2)) )
++					  strcmp((char*)(k1), ((char*)(k2 ? k2 : ""))) )
+ 
+ #define _DTHSH(dt,ky,dc) ((dc)->hashf   ? (*(dc)->hashf)((dt), (ky), (dc)) : \
+ 					  dtstrhash(0, (ky), (dc)->size) )
diff --git a/ksh93-jobs.dif b/ksh93-jobs.dif
index 81f677f..5c19f6b 100644
--- a/ksh93-jobs.dif
+++ b/ksh93-jobs.dif
@@ -1,6 +1,42 @@
 --- src/cmd/ksh93/sh/jobs.c
-+++ src/cmd/ksh93/sh/jobs.c	2011-08-15 18:43:23.005726321 +0200
-@@ -1103,7 +1103,7 @@ static struct process *job_bystring(regi
++++ src/cmd/ksh93/sh/jobs.c	2012-12-20 13:33:27.885452491 +0000
+@@ -638,12 +638,14 @@ void job_init(Shell_t *shp, int lflag)
+ 		/* This should have already been done by rlogin */
+                 register int fd;
+                 register char *ttynam;
++		int err = errno;
+ #ifndef SIGTSTP
+                 setpgid(0,shp->gd->pid);
+ #endif /*SIGTSTP */
+                 if(job.mypgid<0 || !(ttynam=ttyname(JOBTTY)))
+                         return;
+-                close(JOBTTY);
++		while(close(JOBTTY)<0 && errno==EINTR)
++			errno = err;
+                 if((fd = open(ttynam,O_RDWR)) <0)
+                         return;
+                 if(fd!=JOBTTY)
+@@ -660,7 +662,7 @@ void job_init(Shell_t *shp, int lflag)
+ 		/* wait until we are in the foreground */
+ 		while((job.mytgid=tcgetpgrp(JOBTTY)) != job.mypgid)
+ 		{
+-			if(job.mytgid == -1)
++			if(job.mytgid <= 0)
+ 				return;
+ 			/* Stop this shell until continued */
+ 			signal(SIGTTIN,SIG_DFL);
+@@ -833,7 +835,9 @@ static void job_set(register struct proc
+ 	if((pw->p_flag&P_STOPPED) || tcgetpgrp(job.fd) == shp->gd->pid)
+ 		tcsetpgrp(job.fd,pw->p_fgrp);
+ 	/* if job is stopped, resume it in the background */
+-	job_unstop(pw);
++	if(!shp->forked)
++		job_unstop(pw);
++	shp->forked = 0;
+ #endif	/* SIGTSTP */
+ }
+ 
+@@ -1104,7 +1110,7 @@ static struct process *job_bystring(regi
  
  int job_kill(register struct process *pw,register int sig)
  {
@@ -9,7 +45,7 @@
  	register pid_t pid;
  	register int r;
  	const char *msg;
-@@ -1116,6 +1116,7 @@ int job_kill(register struct process *pw
+@@ -1117,6 +1123,7 @@ int job_kill(register struct process *pw
  	errno = ECHILD;
  	if(pw==0)
  		goto error;
@@ -17,3 +53,11 @@
  	pid = pw->p_pid;
  #if SHOPT_COSHELL
  	if(pw->p_cojob)
+@@ -2043,6 +2050,7 @@ void job_fork(pid_t parent)
+ 		job.in_critical = 0;
+ 		break;
+ 	default:
++		job_chksave(parent);
+ 		jobfork=0;
+ 		job_unlock();
+ 		break;