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authortgoodwin <tgoodwin>1998-02-24 12:00:28 +0000
committerToby Goodwin <toby@paccrat.org>2015-05-16 21:23:05 +0100
commita8c039e14eafd7933776e8616715955d52320600 (patch)
tree5e4ba86b11610c5ca9370b7e9df801730cc5f075 /configure.ac
parenta3d14284af40b0d4d9bf33cf33f640c3ea6102ad (diff)
try for mkfifo()
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac12
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>