Added manifest, started fixing docker tests

Makefile

@@ -95,8 +95,8 @@ test-gerbil:
 	${GERBIL} test.scm
 
 GUILE=guile --r7rs --fresh-auto-compile -L .
-test-guile-podman-amd64: libtest.so
-	podman run --arch=amd64 -it -v ${PWD}:/workdir docker.io/schemers/guile bash -c "cd /workdir && ${GUILE} test.scm"
+test-guile-docker: libtest.so
+	${DOCKER} schemers/guile:head bash -c "cd /workdir && ${GUILE} test.scm"
 
 test-guile: libtest.so
 	${GUILE} test.scm

manifest.scm

@@ -2,8 +2,4 @@
 ;; You can store it in a file that you may then pass to any 'guix' command
 ;; that accepts a '--manifest' (or '-m') option.
 
-(concatenate-manifests
-  (list (specifications->manifest
-          (list "chibi-scheme" "libffi"))
-        (package->development-manifest
-          (specification->package "chibi-scheme"))))
+(specifications->manifest (list "gcc-toolchain"))

retropikzel/r7rs-pffi/guile.scm

@@ -70,7 +70,7 @@
     (pointer->string pointer)))
 
 (define pffi-shared-object-load
-  (lambda (header path)
+  (lambda (header path . options)
     (load-foreign-library path)))
 
 (define pffi-pointer-free