Index: /trunk/Ohana/src/imregister/imreg/SetSignals.c
===================================================================
--- /trunk/Ohana/src/imregister/imreg/SetSignals.c	(revision 79)
+++ /trunk/Ohana/src/imregister/imreg/SetSignals.c	(revision 80)
@@ -17,5 +17,4 @@
   signal (SIGCONT,   SIG_DFL);    
   signal (SIGSTOP,   SIG_DFL);    
-  signal (SIGUNUSED, SIG_DFL);  
 
   /* exit on these signals */
@@ -50,4 +49,7 @@
 
   /* signals which are not always defined */
+# ifdef SIGUNUSED
+  signal (SIGUNUSED, SIG_DFL);  
+# endif
 # ifdef SIGSYS
   signal (SIGSYS,    SIG_DIE);