diff '--color=auto' -r -U3 maxima-5.48.1.orig/src/init-cl.lisp maxima-5.48.1/src/init-cl.lisp
--- maxima-5.48.1.orig/src/init-cl.lisp	2025-08-03 12:30:20.000000000 +0700
+++ maxima-5.48.1/src/init-cl.lisp	2025-10-10 23:25:15.816941666 +0700
@@ -587,8 +587,13 @@
 			 (delete-file file)))))
 	   *temp-files-list*))
 
+#+sbcl
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (require 'sb-gmp))
+
 (defun cl-user::run ()
   "Run Maxima in its own package."
+  #+sbcl (sb-gmp:install-gmp-funs)
   (in-package :maxima)
   (initialize-runtime-globals)
   (let ((input-stream *standard-input*)