diff --git a/eval.c b/eval.c
index 5bb1e465..ed4859c3 100644
--- a/eval.c
+++ b/eval.c
@@ -1073,11 +1073,15 @@ sexp sexp_close_port_op (sexp ctx, sexp self, sexp_sint_t n, sexp port) {
 }
 
 #if SEXP_USE_STATIC_LIBS
+#ifndef PLAN9
 #include "clibs.c"
-static sexp_library_entry_t *sexp_find_static_library(const char *file)
+#else
+struct sexp_library_entry_t sexp_static_libraries[];
+#endif
+static struct sexp_library_entry_t *sexp_find_static_library(const char *file)
 {
   size_t base_len;
-  sexp_library_entry_t *entry;
+  struct sexp_library_entry_t *entry;
 
   if (file[0] == '.' && file[1] == '/')
     file += 2;
@@ -1090,7 +1094,7 @@ static sexp_library_entry_t *sexp_find_static_library(const char *file)
   return NULL;
 }
 static sexp sexp_load_dl (sexp ctx, sexp file, sexp env) {
-  sexp_library_entry_t *entry = sexp_find_static_library(sexp_string_data(file));
+  struct sexp_library_entry_t *entry = sexp_find_static_library(sexp_string_data(file));
   if (! entry)
     return sexp_compile_error(ctx, "couldn't find builtin library", file);
   return entry->init(ctx, NULL, 3, env, sexp_version, SEXP_ABI_IDENTIFIER);
diff --git a/include/chibi/sexp.h b/include/chibi/sexp.h
index 929bab38..b10c5fcf 100755
--- a/include/chibi/sexp.h
+++ b/include/chibi/sexp.h
@@ -255,6 +255,11 @@ struct sexp_gc_var_t {
   struct sexp_gc_var_t *next;
 };
 
+struct sexp_library_entry_t {   /* for static builds */
+  const char *name;
+  sexp_init_proc init;
+};
+
 struct sexp_type_struct {
   sexp_tag_t tag;
   short field_base, field_eq_len_base, field_len_base, field_len_off;
diff --git a/lib/chibi/time.stub b/lib/chibi/time.stub
index 7746ee6c..1da56217 100644
--- a/lib/chibi/time.stub
+++ b/lib/chibi/time.stub
@@ -1,6 +1,9 @@
 
-(c-system-include "time.h")
-(c-system-include "sys/time.h")
+(cond-expand
+ (plan9)
+ (else
+  (c-system-include "time.h")
+  (c-system-include "sys/time.h")))
 
 (define-c-struct tm
   predicate: tm?
diff --git a/lib/scheme/time.c b/lib/scheme/time.c
index d2e13db5..13e56145 100644
--- a/lib/scheme/time.c
+++ b/lib/scheme/time.c
@@ -2,9 +2,14 @@
 /* Copyright (c) 2011-2012 Alex Shinn.  All rights reserved. */
 /* BSD-style license: http://synthcode.com/license.txt       */
 
-#include <time.h>
 #include <chibi/eval.h>
 
+#ifndef PLAN9
+#include <time.h>
+#else
+typedef long time_t;
+#endif
+
 /* TODO: Check a leap second table file at appropriate intervals. */
 static time_t leap_seconds_since_epoch = 24;
 
diff --git a/lib/srfi/33/bit.c b/lib/srfi/33/bit.c
index e69199ef..8b0e37b8 100644
--- a/lib/srfi/33/bit.c
+++ b/lib/srfi/33/bit.c
@@ -1,9 +1,14 @@
 /*  bit.c -- bitwise operators                                */
-/*  Copyright (c) 2009-2011 Alex Shinn.  All rights reserved. */
+/*  Copyright (c) 2009-2012 Alex Shinn.  All rights reserved. */
 /*  BSD-style license: http://synthcode.com/license.txt       */
 
 #include <chibi/eval.h>
+
+#ifndef PLAN9
 #include <limits.h>
+#else
+#define CHAR_BIT 8
+#endif
 
 #if SEXP_USE_BIGNUMS
 #include <chibi/bignum.h>
diff --git a/lib/srfi/98/env.c b/lib/srfi/98/env.c
index 904006b4..29cfba25 100644
--- a/lib/srfi/98/env.c
+++ b/lib/srfi/98/env.c
@@ -1,13 +1,15 @@
-/*  env.c -- SRFI-98 environment interface                    */
-/*  Copyright (c) 2009-2011 Alex Shinn.  All rights reserved. */
-/*  BSD-style license: http://synthcode.com/license.txt       */
+/* env.c -- SRFI-98 environment interface                    */
+/* Copyright (c) 2009-2012 Alex Shinn.  All rights reserved. */
+/* BSD-style license: http://synthcode.com/license.txt       */
 
 #ifdef __APPLE__
 #include <crt_externs.h>
 #define environ (*_NSGetEnviron())
 #else
+#ifndef PLAN9
 extern char **environ;
 #endif
+#endif
 
 #include <chibi/eval.h>
 
@@ -25,6 +27,7 @@ sexp sexp_get_environment_variables (sexp ctx, sexp self, sexp_sint_t n) {
   sexp_gc_var3(res, name, val);
   sexp_gc_preserve3(ctx, res, name, val);
   res = SEXP_NULL;
+#ifndef PLAN9
   env = environ;
   for (i=0; env[i]; i++) {
     cname = env[i];
@@ -36,6 +39,7 @@ sexp sexp_get_environment_variables (sexp ctx, sexp self, sexp_sint_t n) {
       res = sexp_cons(ctx, val, res);
     }
   }
+#endif
   sexp_gc_release3(ctx);
   return res;
 }
diff --git a/mkfile b/mkfile
index 1e3f77b8..0cabf51c 100644
--- a/mkfile
+++ b/mkfile
@@ -4,14 +4,52 @@ BIN=/$objtype/bin
 TARG=chibi-scheme
 MODDIR=/sys/lib/chibi-scheme
 
-CPPFLAGS= -Iinclude -DPLAN9 -DSEXP_USE_STRING_STREAMS=0 -DSEXP_USE_GREEN_THREADS=0
-CFLAGS= -p $CPPFLAGS
+CHIBI=./$O.out
+GENSTATIC=./tools/chibi-genstatic
 
-OFILES=sexp.$O eval.$O main.$O
+CPPFLAGS= -Iinclude -DPLAN9 -DSEXP_USE_GREEN_THREADS=0
+CFLAGS= -p $CPPFLAGS
+CFLAGS_STATIC=$CFLAGS -DSEXP_USE_STATIC_LIBS
+
+OFILES=sexp.$O eval.$O main.$O $STATIC
 HFILES=include/chibi/sexp.h include/chibi/eval.h include/chibi/features.h include/chibi/install.h
+CLEANFILES=tests/basic/*.out tests/basic/*.err
+
+EXCLUDE=srfi.18 srfi.27 chibi.filesystem chibi.io \
+	chibi.net chibi.process chibi.stty chibi.system \
+	chibi.time
+
+CHIBI_LIBS = lib/chibi/filesystem.c lib/chibi/process.c \
+	lib/chibi/time.c lib/chibi/system.c lib/chibi/stty.c \
+	lib/chibi/weak.c lib/chibi/heap-stats.c lib/chibi/disasm.c \
+	lib/chibi/net.c
+CHIBI_IO_COMPILED_LIBS = lib/chibi/io/io.c
+CHIBI_OPT_COMPILED_LIBS = lib/chibi/optimize/rest.c \
+	lib/chibi/optimize/profile.c
+COMPILED_LIBS = $CHIBI_COMPILED_LIBS $CHIBI_IO_COMPILED_LIBS \
+	$CHIBI_OPT_COMPILED_LIBS \
+	lib/srfi/33/bit.c lib/srfi/39/param.c \
+	lib/srfi/69/hash.c lib/srfi/95/qsort.c lib/srfi/98/env.c \
+	lib/scheme/time.c
 
 </sys/src/cmd/mkone
 
+clean:
+	rm -f $CLEANFILES
+
+clibs.$O: clibs.c
+
+$TARG: $O.out
+	rm $OFILES
+	mk 'CFLAGS=$CFLAGS_STATIC' clibs.$O $OFILES
+	mk 'CFLAGS=$CFLAGS_STATIC' 'STATIC=clibs.$O' default
+
+target: $O.out
+	mv $O.out $TARG
+
+%.c:   %.stub
+	$CHIBI ./tools/chibi-ffi $stem.stub
+
 include/chibi/install.h: mkfile
 	echo '#define sexp_default_module_path "'$MODDIR'"' > include/chibi/install.h
 	echo '#define sexp_so_extension ".no-such-file"' >> include/chibi/install.h
@@ -19,10 +57,21 @@ include/chibi/install.h: mkfile
 	echo '#define sexp_version "'`{cat VERSION}'"' >> include/chibi/install.h
 	echo '#define sexp_release_name "'`{cat RELEASE}'"' >> include/chibi/install.h
 
+dist-clean: clean
+	rm -f include/chibi/install.h clibs.c
+
 install:V: $BIN/$TARG
 	test -d $MODDIR || mkdir -p $MODDIR
 	{cd lib; tar c .} | {cd $MODDIR ; tar x }
 
+clibs.c:V: $GENSTATIC $CHIBI $COMPILED_LIBS
+	du -a lib | sed 's/^[0-9]*[ 	]*//' | grep '\.sld$' | \
+	$CHIBI $GENSTATIC \
+	-x srfi.27 -x srfi.18 -x chibi.filesystem -x chibi.io \
+	-x chibi.net -x chibi.process -x chibi.stty -x chibi.system \
+	-x chibi.time \
+	> ,clibs.c && mv ,clibs.c clibs.c
+
 test:V:
 	./$O.out -xscheme tests/r5rs-tests.scm
 
diff --git a/tools/chibi-genstatic b/tools/chibi-genstatic
index ef941126..434d7442 100755
--- a/tools/chibi-genstatic
+++ b/tools/chibi-genstatic
@@ -214,12 +214,12 @@
     (newline)
     (for-each include-c-lib c-libs)
     (newline)
-    (display "typedef struct {\n")
-    (display "  const char *name;\n")
-    (display "  sexp_init_proc init;\n")
-    (display "} sexp_library_entry_t;\n")
-    (newline)
-    (display "static sexp_library_entry_t sexp_static_libraries[] = {\n")
+    ;; (display "typedef struct {\n")
+    ;; (display "  const char *name;\n")
+    ;; (display "  sexp_init_proc init;\n")
+    ;; (display "} sexp_library_entry_t;\n")
+    ;; (newline)
+    (display "struct sexp_library_entry_t sexp_static_libraries[] = {\n")
     (for-each init-c-lib c-libs)
     (display "  { NULL, NULL }\n")
     (display "};\n\n")))