22124201 TCSH Latest Patch 126630-03 changes the behavior of Exit . You cannot exit .
--- tcsh-6.18.01/Makefile.in.orig Tue Apr 14 13:38:25 2015
+++ tcsh-6.18.01/Makefile.in Tue Apr 14 13:39:03 2015
@@ -761,6 +761,16 @@
check: atconfig $(srcdir)/tests/testsuite
$(SHELL) $(srcdir)/tests/testsuite
+sys-atconfig: atconfig
+ @gsed -e "s,AUTOTEST_PATH='.'",AUTOTEST_PATH='/usr/gnu/bin:/usr/bin', < \
+ atconfig > sys-atconfig
+
+system-test: sys-atconfig $(srcdir)/tests/testsuite
+ @mv atconfig atconfig.orig
+ @cp sys-atconfig atconfig
+ $(SHELL) $(srcdir)/tests/testsuite
+ @mv atconfig.orig atconfig
+
#
# Dependencies
#