m4/have_type.m4

   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 ])