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* configure.in: Check for SIGTSTP and SIGCONT signals. Disable

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subshell if this test fails.
This commit is contained in:
Pavel Roskin 2002-08-04 06:49:03 +00:00
parent bd07726f90
commit 23e56a01e1
2 changed files with 25 additions and 6 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2002-08-04 Pavel Roskin <proski@gnu.org>
* configure.in: Check for SIGTSTP and SIGCONT signals. Disable
subshell if this test fails.
2002-08-03 Pavel Roskin <proski@gnu.org>
* syntax/mail.syntax: Colors changed to be more readable.

26
configure.in
View File

@ -466,6 +466,19 @@ filel=$ac_cv_filel
AC_MSG_RESULT([$filel])
fi
AC_CACHE_CHECK([for SIGTSTP and SIGCONT signals],
[mc_cv_have_sigtstp],
[AC_TRY_LINK(
[#include <signal.h>
],
[kill(1, SIGTSTP);
kill(1, SIGCONT);
],
[mc_cv_have_sigtstp=yes],
[mc_cv_have_sigtstp=no])])
AC_MSG_CHECKING([for subshell support])
AC_ARG_WITH(subshell,
[--with-subshell=optional To disable concurrent shell by default
@ -475,26 +488,27 @@ AC_ARG_WITH(subshell,
then
AC_DEFINE(SUBSHELL_OPTIONAL, 1,
[Define to make subshell support optional])
AC_DEFINE(HAVE_SUBSHELL_SUPPORT, 1,
[Define to enable subshell support])
result="optional"
fi
if test x$withval = xyes
then
AC_DEFINE(HAVE_SUBSHELL_SUPPORT)
result="yes"
fi],
[dnl Default: provide the subshell support on non-ultrix machines
case $host_os in
ultrix*)
result=no
result="no"
;;
*)
AC_DEFINE(HAVE_SUBSHELL_SUPPORT)
result=yes
dnl If SIGTSTP is missing, then no subshell
result="$mc_cv_have_sigtstp"
;;
esac
])
if test "x$result" != xno; then
AC_DEFINE(HAVE_SUBSHELL_SUPPORT, 1,
[Define to enable subshell support])
fi
AC_MSG_RESULT([$result])
subshell="$result"