After updating to SBCL 1.2.2, the Maxima 1.33.0 build fails. A complete build log is available at http://hydra.nixos.org/build/13073061/nixlog/1/raw.
The error message from SBCL:
; - Compiling source file
; compiling file "/tmp/nix-build-maxima-5.33.0.drv-0/maxima-5.33.0/src/csimp2.lisp" (written 27 FEB 2014 07:31:50 PM):
; compiling (IN-PACKAGE :MAXIMA)
; compiling (MACSYMA-MODULE CSIMP2)
; compiling (LOAD-MACSYMA-MACROS RZMAC)
; compiling (DECLARE-TOP (SPECIAL VAR ...))
; compiling (DEFMVAR $GAMMALIM ...)
; compiling (DEFUN GAMMAC ...)
; compiling (DEFUN GAMMA-LANCZOS ...)
; compiling (DEFUN GAMMAFLOAT ...)fatal error encountered in SBCL pid 1276(tid 46912496274304):
no transport function for object 0x097f000f (widetag 0x43)
looks to me like an internal error in SBCL, since it doesn't say anything about a problem in the Maxima code. Can you please report this bug to the SBCL developers? I am going to close this report now, assuming that it is an error in SBCL. If it turns out that's not the case, you can re-open this report.