wctype-h: Add support for Minix.

[gnulib.git] / m4 / isapipe.m4

diff --git a/m4/isapipe.m4 b/m4/isapipe.m4
index 76402ff..3f6ff91 100644 (file)
--- a/m4/isapipe.m4
+++ b/m4/isapipe.m4
@@ -11,9 +11,11 @@ dnl Written by Paul Eggert.
 AC_DEFUN([gl_ISAPIPE],
 [
   # OpenVMS has isapipe already, so check for it.
-  AC_REPLACE_FUNCS([isapipe])
-  if test $ac_cv_func_isapipe = no; then
-    gl_PREREQ_ISAPIPE
+  AC_CHECK_FUNCS([isapipe])
+  if test $ac_cv_func_isapipe = yes; then
+    HAVE_ISAPIPE=1
+  else
+    HAVE_ISAPIPE=0
   fi
 ])