diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 47 |
1 files changed, 38 insertions, 9 deletions
diff --git a/configure.ac b/configure.ac index ba2b99e0c..5003018bd 100644 --- a/configure.ac +++ b/configure.ac @@ -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 ----------- |