The following program

(include "univ-lib/lib.scm")
(declare (not constant-fold))
(+ 1 1)

crash with the error

SyntaxError: Unexpected token ILLEGAL
    gambit_r1 = new Gambit_Flonum(1.val + 1.val);
                                  ^^
SyntaxError: Unexpected token ILLEGAL

when compiled with gsc -c -target js program-name.scm

The same problem arises with -target equals to python and php. I could not assess if ruby is also victim of this bug (it crashed on what seemed to be another bug).

The error seems to be that + gets inlined, which generate a test case for when its operands are flonums. This generate an attribute access which is not allowed on fixnums by the syntax of the target languages (Ruby might be immune to this bug because "everything is an object").

Note: The code should work when both -repr-flonumand -repr-fixnum are set to class (I didn't tested it though)

Both funcitons (##make-condvar and #make-mutex) require a name as argument.

In lib/io.scm there are calls to those functions that don't provide one.

• ##make-condvar: on line 142 and 277
• ##make-mutex: on line 141 and 276

Passing #!void seems to fix it, but better names might be good.