--- libev/libev.m4	2011/02/20 02:56:23	1.15
+++ libev/libev.m4	2013/10/28 12:36:44	1.16
@@ -1,12 +1,12 @@
 dnl this file is part of libev, do not make local modifications
 dnl http://software.schmorp.de/pkg/libev
 
-dnl libev support 
-AC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h) 
+dnl libev support
+AC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h)
  
 AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd)
  
-AC_CHECK_FUNCS(clock_gettime, [], [ 
+AC_CHECK_FUNCS(clock_gettime, [], [
    dnl on linux, try syscall wrapper first
    if test $(uname) = Linux; then
       AC_MSG_CHECKING(for clock_gettime syscall)
@@ -21,15 +21,15 @@
                      [AC_MSG_RESULT(no)])
    fi
    if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
-      AC_CHECK_LIB(rt, clock_gettime) 
+      AC_CHECK_LIB(rt, clock_gettime)
       unset ac_cv_func_clock_gettime
       AC_CHECK_FUNCS(clock_gettime)
    fi
 ])
 
-AC_CHECK_FUNCS(nanosleep, [], [ 
+AC_CHECK_FUNCS(nanosleep, [], [
    if test -z "$LIBEV_M4_AVOID_LIBRT"; then
-      AC_CHECK_LIB(rt, nanosleep) 
+      AC_CHECK_LIB(rt, nanosleep)
       unset ac_cv_func_nanosleep
       AC_CHECK_FUNCS(nanosleep)
    fi