Regenerate.

[gnulib.git] / m4 / nanosleep.m4

diff --git a/m4/nanosleep.m4 b/m4/nanosleep.m4
index 441edc8..859b4f7 100644 (file)
--- a/m4/nanosleep.m4
+++ b/m4/nanosleep.m4
@@ -1,20 +1,38 @@
-#serial 3
+#serial 15

 
 dnl From Jim Meyering.
 dnl Check for the nanosleep function.
 dnl If not found, use the supplied replacement.
 dnl
 
 
 dnl From Jim Meyering.
 dnl Check for the nanosleep function.
 dnl If not found, use the supplied replacement.
 dnl
 

-AC_DEFUN(jm_FUNC_NANOSLEEP,
+# Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_NANOSLEEP],

 [
 [

+ AC_LIBSOURCES([nanosleep.c])
+
+ nanosleep_save_libs=$LIBS
+

  # Solaris 2.5.1 needs -lposix4 to get the nanosleep function.
  # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
  # Solaris 2.5.1 needs -lposix4 to get the nanosleep function.
  # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.

- AC_SEARCH_LIBS(nanosleep, [rt posix4])
+ AC_SEARCH_LIBS([nanosleep], [rt posix4],
+                [test "$ac_cv_search_nanosleep" = "none required" ||
+                LIB_NANOSLEEP=$ac_cv_search_nanosleep])
+ AC_SUBST([LIB_NANOSLEEP])

 
  AC_CACHE_CHECK([whether nanosleep works],
   jm_cv_func_nanosleep_works,
   [
 
  AC_CACHE_CHECK([whether nanosleep works],
   jm_cv_func_nanosleep_works,
   [

+   dnl Persuade glibc and Solaris <time.h> to declare nanosleep.
+   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+

    AC_REQUIRE([AC_HEADER_TIME])
    AC_REQUIRE([AC_HEADER_TIME])

+   AC_CHECK_HEADERS_ONCE(sys/time.h)

    AC_TRY_RUN([
 #   if TIME_WITH_SYS_TIME
 #    include <sys/time.h>
    AC_TRY_RUN([
 #   if TIME_WITH_SYS_TIME
 #    include <sys/time.h>


@@ -42,9 +60,17 @@ AC_DEFUN(jm_FUNC_NANOSLEEP,
         jm_cv_func_nanosleep_works=no)
   ])
   if test $jm_cv_func_nanosleep_works = no; then
         jm_cv_func_nanosleep_works=no)
   ])
   if test $jm_cv_func_nanosleep_works = no; then

-    AC_SUBST(LIBOBJS)
-    LIBOBJS="$LIBOBJS nanosleep.$ac_objext"
-    AC_DEFINE_UNQUOTED(nanosleep, gnu_nanosleep,
-      [Define to gnu_nanosleep if the replacement function should be used.])
+    AC_LIBOBJ(nanosleep)
+    AC_DEFINE(nanosleep, rpl_nanosleep,
+      [Define to rpl_nanosleep if the replacement function should be used.])
+    gl_PREREQ_NANOSLEEP

   fi
   fi

+
+ LIBS=$nanosleep_save_libs
+])
+
+# Prerequisites of lib/nanosleep.c.
+AC_DEFUN([gl_PREREQ_NANOSLEEP],
+[
+  AC_CHECK_FUNCS_ONCE(siginterrupt)

 ])
 ])