Index: zshconfig.ac
===================================================================
RCS file: /cvsroot/zsh/zsh/zshconfig.ac,v
retrieving revision 1.41
diff -b -u -r1.41 zshconfig.ac
--- zshconfig.ac	15 Sep 2003 09:20:21 -0000	1.41
+++ zshconfig.ac	17 Oct 2003 16:47:40 -0000
@@ -1614,6 +1614,7 @@
 dnl for instance, BeOS R4.51 does not support it yet
 dnl -----------
 if test -t 0 && test $ac_cv_func_tcsetpgrp = yes; then
+    trap "" SIGTTOU
     AC_CACHE_CHECK(if tcsetpgrp() actually works,
     zsh_cv_sys_tcsetpgrp,
     [AC_TRY_RUN([
@@ -1631,6 +1632,7 @@
     if test $zsh_cv_sys_tcsetpgrp = no; then
       AC_DEFINE(BROKEN_TCSETPGRP)
     fi
+    trap - SIGTTOU
 fi
 
 dnl -----------