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require "mkmf"
def have_type(type, header=nil)
printf "checking for %s... ", type
STDOUT.flush
src = <<"SRC"
#include <ruby.h>
SRC
unless header.nil?
src << <<"SRC"
#include <#{header}>
SRC
end
r = try_link(src + <<"SRC")
int main() { return 0; }
int t() { #{type} a; return 0; }
SRC
unless r
print "no\n"
return false
end
$defs.push(format("-DHAVE_%s", type.upcase))
print "yes\n"
return true
end
if have_header("sys/types.h")
header = "sys/types.h"
else
header = nil
end
have_type("int32_t", header)
create_makefile("numru/multibitnums")
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