X-Git-Url: https://git.distorted.org.uk/~mdw/sod/blobdiff_plain/e0808c472145fc81e52898bc9ac289e10c4f4f41..refs/heads/master:/src/parser/package.lisp

diff --git a/src/parser/package.lisp b/src/parser/package.lisp
index 811440c..1ce0cfa 100644
--- a/src/parser/package.lisp
+++ b/src/parser/package.lisp
@@ -23,16 +23,23 @@
 ;;; along with SOD; if not, write to the Free Software Foundation,
 ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-(cl:defpackage #:sod-parser
-  (:use #:common-lisp
-	#:sod-utilities
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (handler-bind ((warning #'muffle-warning))
+    (cl:defpackage #:sod-parser
+      (:use #:common-lisp
+	    #:sod-utilities
 
-	;; Try to find Gray streams support from somewhere.  ECL tucks them
-	;; somewhere unhelpful.
-	#+sbcl #:sb-gray
-	#+cmu #:extensions
-	#+ecl #.(if (find-package '#:gray) '#:gray '#:si)
-	#+clisp #:gray
-	#-(or sbcl cmu ecl clisp) ...))
+	    ;; Try to find Gray streams support from somewhere.  ECL tucks
+	    ;; them somewhere unhelpful.
+	    #.(or (car '(#+sbcl #:sb-gray
+			 #+cmu #:extensions
+			 #+ecl #.(if (find-package '#:gray) '#:gray '#:si)
+			 #+clisp #:gray))
+		  (error "Unsupported Lisp (can't find Gray streams)")))
+
+      ;; CMUCL's `extensions' package has lots of cruft.  Use our cruft
+      ;; instead.
+      #+cmu (:shadowing-import-from
+	     #:sod-utilities #:symbolicate #:once-only))))
 
 ;;;----- That's all, folks --------------------------------------------------