[PATCH] allows configure to run in the background

[Philippe Troin <phil@xxxxxxxx>]

The checking "if tcsetpgrp() actually works" configure test stops the
configure script if it is ran in the background. The enclose patch
prevents this from happening by ignoring SIGTTOU for the duration of
this test.

Phil.

Index: zshconfig.ac
===================================================================
RCS file: /cvsroot/zsh/zsh/zshconfig.ac,v
retrieving revision 1.42
diff -b -u -r1.42 zshconfig.ac
--- zshconfig.ac	13 Nov 2003 14:34:34 -0000	1.42
+++ zshconfig.ac	25 Nov 2003 03:38:29 -0000
@@ -1577,6 +1577,7 @@
 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 > /dev/null 2>&1 || :
     AC_CACHE_CHECK(if tcsetpgrp() actually works,
     zsh_cv_sys_tcsetpgrp,
     [AC_TRY_RUN([
@@ -1594,6 +1595,7 @@
     if test $zsh_cv_sys_tcsetpgrp = no; then
       AC_DEFINE(BROKEN_TCSETPGRP)
     fi
+    trap - SIGTTOU > /dev/null 2>&1 || :
 fi
 
 dnl -----------