diff --git a/pandoc.gauche.scm b/pandoc.gauche.scm
new file mode 100644
index 0000000..e354c70
--- /dev/null
+++ b/pandoc.gauche.scm
@@ -0,0 +1,7 @@
+(define (run-read-write args input-port read-output)
+  (call-with-process-io
+   args
+   (lambda (from-sub to-sub)
+     (copy-port input-port to-sub)
+     (close-output-port to-sub)
+     (read-output from-sub))))
diff --git a/pandoc.sld b/pandoc.sld
new file mode 100644
index 0000000..100940a
--- /dev/null
+++ b/pandoc.sld
@@ -0,0 +1,20 @@
+(define-library (pandoc)
+  (export pandoc-command-line
+          pandoc-port->json
+          pandoc-port->sxml
+          pandoc-file->json
+          pandoc-file->sxml)
+  (import (scheme base)
+          (scheme file)
+          (scheme write))
+  (cond-expand
+   (gauche (import (only (srfi 180) json-read)
+                   (only (gauche base) copy-port)
+                   (only (gauche process) call-with-process-io))))
+  (begin
+    (define pandoc-command-line (make-parameter (list "pandoc")))
+    (define (call-with-binary-input-file filename proc)
+      (call-with-port (open-binary-input-file filename) proc)))
+  (cond-expand
+   (gauche (include "pandoc.gauche.scm")))
+  (include "pandoc.r5rs.scm"))
diff --git a/test.gauche.scm b/test.gauche.scm
new file mode 100644
index 0000000..2cb0431
--- /dev/null
+++ b/test.gauche.scm
@@ -0,0 +1,12 @@
+(import (scheme base) (scheme write))
+(import (rename (only (gauche base) pprint) (pprint pretty-print))
+        (rename (only (sxml serializer) srl:sxml->html) (srl:sxml->html sxml->html))
+        (pandoc))
+
+(display (sxml->html (pandoc-file->sxml 'gfm "test/CharEq.md")))
+(newline)
+(newline)
+(display (sxml->html (pandoc-file->sxml 'gfm "test/VoidValue.md")))
+(newline)
+(newline)
+(pretty-print (pandoc-file->json 'gfm "test/VoidValue.md"))