diff options
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 52 |
1 files changed, 49 insertions, 3 deletions
@@ -1541,7 +1541,14 @@ AC_DEFUN(BASH_CHECK_DEV_FD, [AC_MSG_CHECKING(whether /dev/fd is available) AC_CACHE_VAL(bash_cv_dev_fd, [if test -d /dev/fd && test -r /dev/fd/0 < /dev/null; then - bash_cv_dev_fd=standard +# check for systems like FreeBSD 5 that only provide /dev/fd/[012] + exec 3<&0 + if test -r /dev/fd/3; then + bash_cv_dev_fd=standard + else + bash_cv_dev_fd=absent + fi + exec 3<&- elif test -d /proc/self/fd && test -r /proc/self/fd/0 < /dev/null; then bash_cv_dev_fd=whacky else @@ -1733,12 +1740,18 @@ AC_CACHE_VAL(ac_cv_rl_version, #include <stdio.h> #include <readline/readline.h> +extern int rl_gnu_readline_p; + main() { FILE *fp; fp = fopen("conftest.rlv", "w"); - if (fp == 0) exit(1); - fprintf(fp, "%s\n", rl_library_version ? rl_library_version : "0.0"); + if (fp == 0) + exit(1); + if (rl_gnu_readline_p != 1) + fprintf(fp, "0.0\n"); + else + fprintf(fp, "%s\n", rl_library_version ? rl_library_version : "0.0"); fclose(fp); exit(0); } @@ -1852,6 +1865,39 @@ AC_DEFINE(CTYPE_NON_ASCII) fi ]) +AC_DEFUN(BASH_CHECK_WCONTINUED, +[ +AC_MSG_CHECKING(whether WCONTINUED flag to waitpid is unavailable or available but broken) +AC_CACHE_VAL(bash_cv_wcontinued_broken, +[AC_TRY_RUN([ +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> +#include <errno.h> + +#ifndef errno +extern int errno; +#endif +main() +{ + int x; + + x = waitpid(-1, (int *)0, WNOHANG|WCONTINUED); + if (x == -1 && errno == EINVAL) + exit (1); + else + exit (0); +} +], bash_cv_wcontinued_broken=no,bash_cv_wcontinued_broken=yes, + [AC_MSG_WARN(cannot check WCONTINUED if cross compiling -- defaulting to no) + bash_cv_wcontinued_broken=no] +)]) +AC_MSG_RESULT($bash_cv_wcontinued_broken) +if test $bash_cv_wcontinued_broken = yes; then +AC_DEFINE(WCONTINUED_BROKEN) +fi +]) + dnl dnl tests added for bashdb dnl |