(jm_PREREQ_READUTMP): New macro.

(jm_PREREQ): Use it.

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 664d5ef20a9913ed03752ddfe48557c57ae4c197..d07d57b962256eab20f2d2674edc3a4d39ada364 100644 (file)
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -8,6 +8,7 @@ AC_DEFUN(jm_PREREQ,
   jm_PREREQ_CANON_HOST
   jm_PREREQ_ERROR
   jm_PREREQ_QUOTEARG
+  jm_PREREQ_READUTMP
   jm_PREREQ_REGEX
 ])
 
@@ -35,6 +36,14 @@ AC_DEFUN(jm_PREREQ_QUOTEARG,
   AM_C_PROTOTYPES
 ])
 
+AC_DEFUN(jm_PREREQ_READUTMP,
+[
+  AC_HEADER_STDC
+  AC_CHECK_HEADERS(string.h utmpx.h sys/param.h)
+  AC_CHECK_FUNCS(utmpname)
+  AM_C_PROTOTYPES
+])
+
 AC_DEFUN(jm_PREREQ_REGEX,
 [
   dnl FIXME: Maybe provide a btowc replacement someday: solaris-2.5.1 lacks it.