X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fnanosleep.m4;h=5ed4c472752034965978951f38b154bcef282228;hb=26dec442ee2a74795222566b0888ccb0fe592108;hp=37e7f5a8af4302717f1682db5e60263477404f4f;hpb=9a4a47046794ea88d4bef6038da0c5afaef01f46;p=gnulib.git

diff --git a/m4/nanosleep.m4 b/m4/nanosleep.m4
index 37e7f5a8a..5ed4c4727 100644
--- a/m4/nanosleep.m4
+++ b/m4/nanosleep.m4
@@ -1,15 +1,34 @@
-#serial 1
+#serial 6
 
 dnl From Jim Meyering.
-dnl FIXME
+dnl Check for the nanosleep function.
+dnl If not found, use the supplied replacement.
 dnl
 
 AC_DEFUN(jm_FUNC_NANOSLEEP,
 [
+ nanosleep_save_libs=$LIBS
+
+ # Solaris 2.5.1 needs -lposix4 to get the nanosleep function.
+ # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
+ AC_SEARCH_LIBS(nanosleep, [rt posix4], [LIB_NANOSLEEP=$ac_cv_search_nanosleep])
+ AC_SUBST(LIB_NANOSLEEP)
+
  AC_CACHE_CHECK([whether nanosleep works],
   jm_cv_func_nanosleep_works,
-  [AC_TRY_RUN([
-#   include <time.h>
+  [
+   AC_REQUIRE([AC_HEADER_TIME])
+   AC_TRY_RUN([
+#   if TIME_WITH_SYS_TIME
+#    include <sys/time.h>
+#    include <time.h>
+#   else
+#    if HAVE_SYS_TIME_H
+#     include <sys/time.h>
+#    else
+#     include <time.h>
+#    endif
+#   endif
 
     int
     main ()
@@ -23,12 +42,14 @@ AC_DEFUN(jm_FUNC_NANOSLEEP,
 	 jm_cv_func_nanosleep_works=yes,
 	 jm_cv_func_nanosleep_works=no,
 	 dnl When crosscompiling, assume the worst.
-	 jm_cv_func_nanosleep_works=yes)
+	 jm_cv_func_nanosleep_works=no)
   ])
   if test $jm_cv_func_nanosleep_works = no; then
     AC_SUBST(LIBOBJS)
     LIBOBJS="$LIBOBJS nanosleep.$ac_objext"
-    AC_DEFINE_UNQUOTED(nanosleep, gnu_nanosleep,
-      [Define to gnu_nanosleep if the replacement function should be used.])
+    AC_DEFINE_UNQUOTED(nanosleep, rpl_nanosleep,
+      [Define to rpl_nanosleep if the replacement function should be used.])
   fi
+
+ LIBS=$nanosleep_save_libs
 ])