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rsync 3.1.2

    1: dnl AC_HAVE_TYPE(TYPE,INCLUDES)
    2: AC_DEFUN([AC_HAVE_TYPE], [
    3: AC_REQUIRE([AC_HEADER_STDC])
    4: cv=`echo "$1" | sed 'y%./+- %__p__%'`
    5: AC_MSG_CHECKING(for $1)
    6: AC_CACHE_VAL([ac_cv_type_$cv],
    7: AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
    8: AC_INCLUDES_DEFAULT
    9: $2]],
   10: [[$1 foo;]])],
   11: [eval "ac_cv_type_$cv=yes"],
   12: [eval "ac_cv_type_$cv=no"]))dnl
   13: ac_foo=`eval echo \\$ac_cv_type_$cv`
   14: AC_MSG_RESULT($ac_foo)
   15: if test "$ac_foo" = yes; then
   16:   ac_tr_hdr=HAVE_`echo $1 | sed 'y%abcdefghijklmnopqrstuvwxyz./- %ABCDEFGHIJKLMNOPQRSTUVWXYZ____%'`
   17: if false; then
   18: 	AC_CHECK_TYPES($1)
   19: fi
   20:   AC_DEFINE_UNQUOTED($ac_tr_hdr, 1, [Define if you have type `$1'])
   21: fi
   22: ])