CHICKEN
(c) 2008-2016, The CHICKEN Team
(c) 2000-2007, Felix L. Winkelmann
Version 4.11.0 (rev ce980c4)
linux-unix-gnu-x86-64 [ 64bit manyargs dload ptables ]
compiled 2016-05-28 on yves.more-magic.net (Linux)

; loading /nix/store/aw6zc3li00f808x48y01w7b0wnwrb76x-chicken-readline-4.1.3/lib/chicken/8//readline.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//chicken.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//foreign.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//ports.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//data-structures.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//posix.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//irregex.import.so ...
; loading /nix/store/aw6zc3li00f808x48y01w7b0wnwrb76x-chicken-readline-4.1.3/lib/chicken/8//readline.so ...
; loading dla.s ...
; loading /nix/store/1k3igssh1lmzsxc6s4mlvrh1hm9w00jy-chicken-traversal-1.6/lib/chicken/8//traversal.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//srfi-1.import.so ...
; loading /nix/store/6jx77y749dxlcl2c109dibxxrr6804x0-chicken-vector-lib-1.2.2/lib/chicken/8//vector-lib.import.so ...

Note: re-importing already imported identifier: sort

Note: re-importing already imported identifier: merge
; loading /nix/store/1k3igssh1lmzsxc6s4mlvrh1hm9w00jy-chicken-traversal-1.6/lib/chicken/8//traversal.so ...
; loading /nix/store/6jx77y749dxlcl2c109dibxxrr6804x0-chicken-vector-lib-1.2.2/lib/chicken/8//vector-lib.so ...
; loading /nix/store/2sfsirc99q7w4pnfj6ikwbsnkq6nqx37-chicken-number-limits-2.0.1/lib/chicken/8//int-limits.import.so ...
; loading /nix/store/2sfsirc99q7w4pnfj6ikwbsnkq6nqx37-chicken-number-limits-2.0.1/lib/chicken/8//int-limits.so ...
; loading /nix/store/gngb4j4q6ddaqkgqi97b03341mi6jkid-chicken-qt-light-0.991/lib/chicken/8//qt-light.import.so ...

Warning: excluded identifier doesn't exist in module foreign: foreign-declare
; loading /nix/store/3jfyy693a3yp7yr2c5xn1wx1ihbykf5f-chicken-easyffi-1.99.7/lib/chicken/8//easyffi.import.so ...

Warning: excluded identifier doesn't exist in module foreign: foreign-declare
; loading /nix/store/4j74zbv0f5mv734il8cwkkhkcbi6zxw4-chicken-miscmacros-2.96/lib/chicken/8//miscmacros.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//srfi-4.import.so ...
; loading /nix/store/52sk3zldxalgvdnwd64xdynz27iznvsk-chicken-protobj-0.4/lib/chicken/8//protobj.import.so ...
; loading /nix/store/j3naswwpdaf74lmmzq6bm1d61nkzsaz8-chicken-matchable-3.7/lib/chicken/8//matchable.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//lolevel.import.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//extras.import.so ...
; loading /nix/store/gngb4j4q6ddaqkgqi97b03341mi6jkid-chicken-qt-light-0.991/lib/chicken/8//qt-light.so ...
; loading /nix/store/52sk3zldxalgvdnwd64xdynz27iznvsk-chicken-protobj-0.4/lib/chicken/8//protobj.so ...
; loading /nix/store/j3naswwpdaf74lmmzq6bm1d61nkzsaz8-chicken-matchable-3.7/lib/chicken/8//matchable.so ...
; loading /nix/store/n4iknhhzn3hckrsb9d64nxx12549sdia-chicken-4.11.0/var/lib/chicken/8//utils.import.so ...
; loading library utils ...
; loading /nix/store/p0y8gkia41531whkrib3j3jqrzlpqza6-chicken-opengl-1.20/lib/chicken/8//gl.import.so ...

Warning: excluded identifier doesn't exist in module foreign: foreign-declare
; loading /nix/store/p0y8gkia41531whkrib3j3jqrzlpqza6-chicken-opengl-1.20/lib/chicken/8//gl.so ...

Error: bad argument count - received 0 but expected 1: #<procedure (? value)>

        Call history:

        <eval>    (qt:update gl)
        <eval>    [paint] (gl:Clear (bitwise-ior gl:COLOR_BUFFER_BIT gl:DEPTH_BUFFER_BIT))
        <eval>    [paint] (bitwise-ior gl:COLOR_BUFFER_BIT gl:DEPTH_BUFFER_BIT)
        <eval>    [paint] (gl:MatrixMode gl:MODELVIEW)
        <eval>    [paint] (gl:LoadIdentity)
        <eval>    [paint] (gl:Rotatef a b c 1)
        <eval>    [paint] (gl:Begin gl:POLYGON)
        <eval>    [paint] (gl:Vertex2f -0.5 -0.5)
        <eval>    [paint] (gl:Vertex2f -0.5 0.5)
        <eval>    [paint] (gl:Vertex2f 0.5 0.5)
        <eval>    [paint] (gl:Vertex2f 0.5 -0.5)
        <eval>    [paint] (gl:End)
        <eval>    (+ a av)
        <eval>    (+ b bv)
        <eval>    (+ c cv)
        <eval>    (qt:update gl)        <--