Unlike the other tests the iconv const check is just looking for the actual...

Unlike the other tests the iconv const check is just looking for the actual function signature it doesn't use it, we don't need to initialise anything..

Originally committed to SVN as r4451.

aegisub/configure.in

@@ -480,11 +480,7 @@ if test "$agi_cv_with_iconv" = "yes"; then
   AC_AGI_COMPILE([iconv (const)], [iconv_const], [$ICONV_CFLAGS], [$ICONV_LDFLAGS],[
 #include <iconv.h>
 int main(void) {
-  iconv_t cd = iconv_open("UTF-16", "UTF-8");
-  const char *in = "in";
-  char *out = new char();
-  size_t res, inbytesleft, outbytesleft;
-  res = iconv(cd, &in, &inbytesleft, &out, &outbytesleft);
+  size_t iconv (iconv_t cd, const char** in, size_t *inbytesleft, char** out, size_t *outbytesleft);
   return 0;
 } ])