New upstream version 1.1upstream/1.1upstream

1 files changed, 12 insertions, 27 deletions

diff --git a/gnulib-m4/nanosleep.m4 b/gnulib-m4/nanosleep.m4
index 6a51f28..dfe21f5 100644
--- a/gnulib-m4/nanosleep.m4
+++ b/gnulib-m4/nanosleep.m4
@@ -1,4 +1,4 @@
-# serial 40
+# serial 42
 
 dnl From Jim Meyering.
 dnl Check for the nanosleep function.
@@ -19,9 +19,6 @@ AC_DEFUN([gl_FUNC_NANOSLEEP],
  dnl Persuade glibc and Solaris <time.h> to declare nanosleep.
  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
 
- AC_CHECK_HEADERS_ONCE([sys/time.h])
- AC_REQUIRE([gl_FUNC_SELECT])
-
  AC_CHECK_DECLS_ONCE([alarm])
 
  nanosleep_save_libs=$LIBS
@@ -53,9 +50,6 @@ AC_DEFUN([gl_FUNC_NANOSLEEP],
           #include <errno.h>
           #include <limits.h>
           #include <signal.h>
-          #if HAVE_SYS_TIME_H
-           #include <sys/time.h>
-          #endif
           #include <time.h>
           #include <unistd.h>
           #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
@@ -106,15 +100,22 @@ AC_DEFUN([gl_FUNC_NANOSLEEP],
             #else /* A simpler test for native Windows.  */
             if (nanosleep (&ts_sleep, &ts_remaining) < 0)
               return 3;
+            /* Test for 32-bit mingw bug: negative nanosecond values do not
+               cause failure.  */
+            ts_sleep.tv_sec = 1;
+            ts_sleep.tv_nsec = -1;
+            if (nanosleep (&ts_sleep, &ts_remaining) != -1)
+              return 7;
             #endif
             return 0;
           }]])],
        [gl_cv_func_nanosleep=yes],
-       [case $? in dnl (
-        4|5|6) gl_cv_func_nanosleep='no (mishandles large arguments)';; dnl (
-        *)   gl_cv_func_nanosleep=no;;
+       [case $? in
+        4|5|6) gl_cv_func_nanosleep='no (mishandles large arguments)' ;;
+        7)     gl_cv_func_nanosleep='no (mishandles negative tv_nsec)' ;;
+        *)     gl_cv_func_nanosleep=no ;;
         esac],
-       [case "$host_os" in dnl ((
+       [case "$host_os" in
           linux*) # Guess it halfway works when the kernel is Linux.
             gl_cv_func_nanosleep='guessing no (mishandles large arguments)' ;;
           mingw*) # Guess no on native Windows.
@@ -135,15 +136,6 @@ AC_DEFUN([gl_FUNC_NANOSLEEP],
            AC_DEFINE([HAVE_BUG_BIG_NANOSLEEP], [1],
              [Define to 1 if nanosleep mishandles large arguments.])
            ;;
-         *)
-           # The replacement uses select(). Add $LIBSOCKET to $LIB_NANOSLEEP.
-           for ac_lib in $LIBSOCKET; do
-             case " $LIB_NANOSLEEP " in
-               *" $ac_lib "*) ;;
-               *) LIB_NANOSLEEP="$LIB_NANOSLEEP $ac_lib";;
-             esac
-           done
-           ;;
        esac
        ;;
    esac
@@ -152,10 +144,3 @@ AC_DEFUN([gl_FUNC_NANOSLEEP],
  fi
  LIBS=$nanosleep_save_libs
 ])
-
-# Prerequisites of lib/nanosleep.c.
-AC_DEFUN([gl_PREREQ_NANOSLEEP],
-[
-  AC_CHECK_HEADERS_ONCE([sys/select.h])
-  gl_PREREQ_SIG_HANDLER_H
-])