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20025: --with-tcsetpgrp from Philippe Troin

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This commit is contained in:
Peter Stephenson 2004-06-08 13:34:11 +00:00
parent f7323823c3
commit 2173c12f2d
3 changed files with 47 additions and 9 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2004-06-08 Peter Stephenson <pws@csr.com>
* Philippe Troin, 19996, plus 20025: configure.ac, INSTALL: add
configure option --with-tcsetpgrp.
* 20024: Doc/Zsh/func.yo: Improve documentation for TRAPNAL
functions.

6
INSTALL
View File

@ -385,6 +385,12 @@ shell is running in some privileged mode. This is turned off by
default as on some systems non-standard headers (in particular AIX) are
required. A direct fix for that problem would be appreciated.
A test for the function tcsetpgrp is turned on by default. The test needs
to run the function to determine if the implementation is usable. However,
this can cause problems when configure is run without a terminal. To avoid
this, use --with-tcsetpgrp or --without-tcsetpgrp to tell configure whether
the function should be used.
Options For Configure
---------------------

47
configure.ac
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@ -1766,24 +1766,53 @@ dnl for instance, BeOS R4.51 does not support it yet
dnl -----------
AH_TEMPLATE([BROKEN_TCSETPGRP],
[Define to 1 if tcsetpgrp() doesn't work, ie BeOS R4.51.])
if test -t 0 && test $ac_cv_func_tcsetpgrp = yes; then
AC_ARG_WITH(tcsetpgrp,
[ --with-tcsetpgrp assumes that tcsetpgrp() exists and works correctly],[
case "x$withval" in
xyes) zsh_working_tcsetpgrp=yes;;
xno) zsh_working_tcsetpgrp=no;;
*) AC_ERROR([please use --with-tcsetpgrp=yes or --with-tcsetpgrp=no]);;
esac],[zsh_working_tcsetpgrp=check])
if test "x$ac_cv_func_tcsetpgrp" = xyes; then
case "x$zsh_working_tcsetpgrp" in
xcheck)
trap "" SIGTTOU > /dev/null 2>&1 || :
AC_CACHE_CHECK(if tcsetpgrp() actually works,
zsh_cv_sys_tcsetpgrp,
[AC_TRY_RUN([
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
main() {
int fd;
int ret;
ret=tcsetpgrp(0, tcgetpgrp(0));
exit(ret<0);
fd=open("/dev/tty", O_RDWR);
if (fd < 0) exit(2);
ret=tcsetpgrp(fd, tcgetpgrp(fd));
if (ret < 0) exit(1);
exit(0);
}
],
zsh_cv_sys_tcsetpgrp=yes,
zsh_cv_sys_tcsetpgrp=no,
zsh_cv_sys_tcsetpgrp=yes)])
if test $zsh_cv_sys_tcsetpgrp = no; then
AC_DEFINE(BROKEN_TCSETPGRP)
fi
zsh_cv_sys_tcsetpgrp=yes, [
case $? in
1) zsh_cv_sys_tcsetpgrp=no;;
2) zsh_cv_sys_tcsetpgrp=notty;;
*) zsh_cv_sys_tcsetpgrp=error;;
esac
], zsh_cv_sys_tcsetpgrp=yes)])
case "x$zsh_cv_sys_tcsetpgrp" in
xno) AC_DEFINE(BROKEN_TCSETPGRP);;
xyes) :;;
xnotty) AC_MSG_ERROR([no controlling tty
Try running configure with --with-tcsetpgrp or --without-tcsetpgrp]);;
*) AC_MSG_ERROR([unexpected return status]);;
esac
trap - SIGTTOU > /dev/null 2>&1 || :
;;
xyes) :;;
xno) AC_DEFINE(BROKEN_TCSETPGRP);;
*) AC_MSG_ERROR([unexpected value zsh_working_tcsetpgrp=$zsh_working_tcsetpgrp]);;
esac
fi
dnl -----------