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dnl -*- Autoconf -*-
dnl RUBY_DEFINT TYPENAME, SIZE, [UNSIGNED], [INCLUDES = DEFAULT-INCLUDES]
AC_DEFUN([RUBY_DEFINT], [dnl
AS_VAR_PUSHDEF([cond], [rb_defint_cond])dnl
AS_VAR_PUSHDEF([type], [rb_defint_type])dnl
AC_CACHE_CHECK([for $1], [rb_cv_type_$1],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])
typedef $1 t; int s = sizeof(t) == 42;])],
[rb_cv_type_$1=yes],
[AS_CASE([m4_bmatch([$2], [^[1-9][0-9]*$], $2, [$ac_cv_sizeof_]AS_TR_SH($2))],
["1"], [ rb_cv_type_$1="m4_if([$3], [], [signed ], [$3 ])char"],
["$ac_cv_sizeof_short"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])short"],
["$ac_cv_sizeof_int"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])int"],
["$ac_cv_sizeof_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long"],
["$ac_cv_sizeof_long_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long long"],
["${ac_cv_sizeof___int64@%:@*:}"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int64"],
["${ac_cv_sizeof___int128@%:@*:}"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int128"],
[ rb_cv_type_$1=no])])])
AS_IF([test "${rb_cv_type_$1}" != no], [
type="${rb_cv_type_$1@%:@@%:@unsigned }"
AS_IF([test "$type" != yes && eval 'test -n "${ac_cv_sizeof_'$type'+set}"'], [
eval cond='"${ac_cv_sizeof_'$type'}"'
AS_CASE([$cond], [*:*], [
cond=AS_TR_CPP($type)
echo "@%:@if defined SIZEOF_"$cond" && SIZEOF_"$cond" > 0" >> confdefs.h
], [cond=])
], [cond=])
AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)
AS_IF([test "${rb_cv_type_$1}" = yes], [
m4_bmatch([$2], [^[1-9][0-9]*$], [AC_CHECK_SIZEOF([$1], 0, [AC_INCLUDES_DEFAULT([$4])])],
[RUBY_CHECK_SIZEOF([$1], [$2], [], [AC_INCLUDES_DEFAULT([$4])])])
], [
AC_DEFINE_UNQUOTED($1, [$rb_cv_type_$1])
AC_DEFINE_UNQUOTED([SIZEOF_]AS_TR_CPP($1), [SIZEOF_]AS_TR_CPP([$type]))
])
test -n "$cond" && echo "@%:@endif /* $cond */" >> confdefs.h
])
AS_VAR_POPDEF([cond])dnl
AS_VAR_POPDEF([type])dnl
])dnl
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