diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 0fae5ca..91364ec 100644 --- a/configure.ac +++ b/configure.ac @@ -196,8 +196,9 @@ esac AM_CONDITIONAL(N_H_B, test "$ac_cv_sys_interpreter" = no) -dnl What do we do for command arguments? We want /dev/fd, Linux's -dnl /proc/self/fd, or failing that, FIFOs. +dnl What do we do for command arguments? We want /dev/fd or Linux's +dnl /proc/self/fd. Failing that, we'll try for POSIX mkfifo(), or a +dnl mknod() that makes FIFOs. AC_CACHE_CHECK(for /dev/fd, rc_cv_sys_dev_fd, if test -d /dev/fd && test -r /dev/fd/0; then rc_cv_sys_dev_fd=yes @@ -210,7 +211,12 @@ AC_CACHE_CHECK(for /dev/fd, rc_cv_sys_dev_fd, case "$rc_cv_sys_dev_fd" in yes) AC_DEFINE(HAVE_DEV_FD) ;; odd) AC_DEFINE(HAVE_PROC_SELF_FD) ;; -no) AC_CACHE_CHECK(for named pipes, rc_cv_sys_fifo, +no) AC_CHECK_FUNCS(mkfifo) ;; +esac + +case "$ac_cv_func_mkfifo" in +yes) AC_DEFINE(HAVE_FIFO) ;; +no) AC_CACHE_CHECK(for mknod FIFOs, rc_cv_sys_fifo, AC_TRY_RUN([ #include <sys/types.h> #include <sys/stat.h> |