Replaced _BSD_SOURCE, _SVID_SOURCE with _DEFAULT_SOURCE. Removed AC_CHECK_GNU_EXTENSIONS.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

tdeio/tdeio/configure.in.in

@@ -64,8 +64,6 @@ AC_ARG_ENABLE(dnotify,
 AC_HELP_STRING([--enable-dnotify],[enable use of Linux directory notifications]),
 [ kde_enable_dnotify=$enableval ], [])dnl
 
-AC_CHECK_GNU_EXTENSIONS
-
 if test "x$kde_enable_dnotify" = "xyes"; then
   AC_MSG_CHECKING([for Linux Directory Notification])
   AC_CACHE_VAL(kde_cv_have_dnotify,
@@ -110,8 +108,6 @@ AC_ARG_ENABLE(inotify,
 AC_HELP_STRING([--disable-inotify],[enable use of Linux inode notifications]),
 [ kde_enable_inotify=$enableval ], [kde_enable_inotify=yes])dnl
 
-AC_CHECK_GNU_EXTENSIONS
-
 if test "x$kde_enable_inotify" = "xyes"; then
   AC_MSG_CHECKING([for Linux Inotify Notification])
   AC_CACHE_VAL(kde_cv_have_inotify,