(jm_PREREQ_ADDEXT): New macro. Parts moved here from fileutils' configure.in.

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 122d69e0572677577d559e3730b9299fc5373708..4c8ac938448b980627dab08b929eea2755693415 100644 (file)
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -1,10 +1,11 @@
-#serial 4
+#serial 5
 
 dnl These are the prerequisite macros for files in the lib/
 dnl directories of the fileutils, sh-utils, and textutils packages.
 
 AC_DEFUN(jm_PREREQ,
 [
+  jm_PREREQ_ADDEXT
   jm_PREREQ_CANON_HOST
   jm_PREREQ_ERROR
   jm_PREREQ_QUOTEARG
@@ -12,6 +13,14 @@ AC_DEFUN(jm_PREREQ,
   jm_PREREQ_REGEX
 ])
 
+AC_DEFUN(jm_PREREQ_ADDEXT,
+[
+  dnl For addext.c.
+  AC_SYS_LONG_FILE_NAMES
+  AC_CHECK_FUNC(pathconf)
+  AC_CHECK_HEADERS(limits.h string.h unistd.h)
+])
+
 AC_DEFUN(jm_PREREQ_CANON_HOST,
 [
   dnl Add any libraries as early as possible.