Optionally allow building the image with POIU

bootstrap/build0.lisp

@@ -36,6 +36,25 @@
 (let ((target-system (uiop:getenvp "KILN_TARGET_SYSTEM")))
   (if target-system
       (load-system target-system)
-      (kiln/image:load-all-script-systems)))
+      (progn
+        #+sbcl
+        (setf sb-ext:*on-package-variance* '(:warn t))
+        #+sbcl
+        (when (uiop:getenvp "KILN_POIU")
+          (handler-case
+              (progn
+                (sb-ext:unlock-package :sb-sys)
+                (let ((key (intern "DEFAULT_INTERRUPT" :sb-sys)))
+                  (unless (fboundp key)
+                    (export key :sb-sys)
+                    (eval
+                     `(defun ,key (signal)
+                        (sb-sys:enable-interrupt signal :default)))))
+                (sb-ext:lock-package :sb-sys)
+                (load-system "poiu"))
+            (error (e)
+              (format *error-output* "Could not load POIU: ~a"
+                      e))))
+        (kiln/image:load-all-script-systems))))
 (finish-output *error-output*)
 (uiop:quit)

flags.lisp

@@ -7,6 +7,7 @@
    :+kiln-no-print-version+
    :+kiln-stack-size+
    :+kiln-path-systems+
+   :+kiln-poiu+
    :+kiln-quicklisp+
    :+kiln-target-file+
    :+kiln-target-system+
@@ -32,6 +33,7 @@
 (def +kiln-no-print-version+ "KILN_NO_PRINT_VERSION")
 (def +kiln-stack-size+ "KILN_STACK_SIZE")
 (def +kiln-path-systems+ "KILN_PATH_SYSTEMS")
+(def +kiln-poiu+ "KILN_POIU")
 (def +kiln-quicklisp+ "KILN_QUICKLISP")
 (def +kiln-target-file+ "KILN_TARGET_FILE")
 (def +kiln-target-system+ "KILN_TARGET_SYSTEM")

scripts/rebuild.lisp

@@ -62,7 +62,14 @@
     :long-name "tolerant"
     :initial-value :false
     :env-vars (list +kiln-tolerant+)
-    :key :tolerant)))
+    :key :tolerant)
+   (cli:make-option
+    :flag
+    :description "Use POIU"
+    :long-name "poiu"
+    :initial-value :false
+    :env-vars (list +kiln-poiu+)
+    :key :poiu)))
 
 (def command
   (cli:make-command
@@ -98,6 +105,8 @@
                 (error "Quicklisp requested but not available"))))
     (when (cli:getopt opts :tolerant)
       (setf (getenv +kiln-tolerant+) "1"))
+    (when (cli:getopt opts :poiu)
+      (setf (getenv +kiln-poiu+) "1"))
     (let ((path (asdf:system-relative-pathname "kiln" "")))
       (uiop:chdir (namestring path))
       (exec "sh build.sh"))))