diff --git a/hacking b/hacking
index 1114e56..86c03ba 160000
--- a/hacking
+++ b/hacking
@@ -1 +1 @@
-Subproject commit 1114e56fb6975e26fecd0466494105cbe42d8b85
+Subproject commit 86c03ba7e6b1fab1bbccd6aad1e72e1bf0a94317
diff --git a/sys/include/libc.h b/sys/include/libc.h
index c824d23..40851a3 100644
--- a/sys/include/libc.h
+++ b/sys/include/libc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2015-2017 Giacomo Tesio <giacomo@tesio.it>
+ * Copyright (C) 2015-2020 Giacomo Tesio <giacomo@tesio.it>
  *
  * This file is part of the UCB release of Plan 9. It is subject to the license
  * terms in the LICENSE file found in the top-level directory of this
@@ -9,8 +9,8 @@
  * in the LICENSE file.
  */
 
-#pragma	lib	"libc.a"
-#pragma	src	"/sys/src/lib/c"
+#pragma	lib	"libjehanne.a"
+#pragma	src	"/sys/src/lib/jehanne"
 
 #define JEHANNE_LIBC	/* only for native code */
 
@@ -614,8 +614,8 @@ extern	Waitmsg*	jehanne_wait(void);
 extern	int	jehanne_waitpid(void);
 extern	int	jehanne_wstat(const char*, uint8_t*, int);
 
-extern	int32_t	jehanne_read(int, void*, int32_t);
-extern	int32_t	jehanne_write(int, const void*, int32_t);
+extern	long	jehanne_read(int, void*, int32_t);
+extern	long	jehanne_write(int, const void*, int32_t);
 
 extern	Dir*	jehanne_dirstat(const char*);
 extern	Dir*	jehanne_dirfstat(int);
diff --git a/sys/src/cmd/cmd.json b/sys/src/cmd/cmd.json
index c710773..564c768 100644
--- a/sys/src/cmd/cmd.json
+++ b/sys/src/cmd/cmd.json
@@ -34,7 +34,7 @@
 			"-lthread",
 			"-lbio",
 			"-l9p2000",
-			"-lc"
+			"-ljehanne"
 		],
 		"Post": [
 			"rm -f *.o"
diff --git a/sys/src/cmd/cmds.json b/sys/src/cmd/cmds.json
index 9742f04..fa65347 100644
--- a/sys/src/cmd/cmds.json
+++ b/sys/src/cmd/cmds.json
@@ -83,7 +83,7 @@
 		"Install": "/arch/$ARCH/cmd/",
 		"Program": "mpc",
 		"SourceFiles": [
-			"/sys/src/lib/c/lib9.c",
+			"/sys/src/lib/jehanne/lib9.c",
 			"mpc.c"
 		]
 	},
diff --git a/sys/src/cmd/disk/prep/fdisk.json b/sys/src/cmd/disk/prep/fdisk.json
index 02c00f0..7cfdb88 100644
--- a/sys/src/cmd/disk/prep/fdisk.json
+++ b/sys/src/cmd/disk/prep/fdisk.json
@@ -12,7 +12,7 @@
 		],
 		"Program": "fdisk",
 		"SourceFiles": [
-			"/sys/src/lib/c/lib9.c",
+			"/sys/src/lib/jehanne/lib9.c",
 			"fdisk.c",
 			"edit.c",
 			"y.tab.c"
diff --git a/sys/src/cmd/disk/prep/prep.json b/sys/src/cmd/disk/prep/prep.json
index 1409ebc..3d0f56a 100644
--- a/sys/src/cmd/disk/prep/prep.json
+++ b/sys/src/cmd/disk/prep/prep.json
@@ -12,7 +12,7 @@
 		],
 		"Program": "prep",
 		"SourceFiles": [
-			"/sys/src/lib/c/lib9.c",
+			"/sys/src/lib/jehanne/lib9.c",
 			"prep.c",
 			"edit.c",
 			"y.tab.c"
diff --git a/sys/src/cmd/ed.c b/sys/src/cmd/ed.c
index 139e764..86be702 100644
--- a/sys/src/cmd/ed.c
+++ b/sys/src/cmd/ed.c
@@ -133,9 +133,6 @@ void	substitute(int);
 static Rune la;
 static Rune lr;
 
-#undef read
-extern int jehanne_read(int, void*, int);
-
 void
 main(int argc, char *argv[])
 {
diff --git a/sys/src/cmd/grep/build.json b/sys/src/cmd/grep/build.json
index 018c2f6..b573572 100644
--- a/sys/src/cmd/grep/build.json
+++ b/sys/src/cmd/grep/build.json
@@ -12,7 +12,7 @@
 		],
 		"Program": "grep",
 		"SourceFiles": [
-			"/sys/src/lib/c/lib9.c",
+			"/sys/src/lib/jehanne/lib9.c",
 			"comp.c",
 			"main.c",
 			"sub.c",
diff --git a/sys/src/cmd/hmi/console/comconsole.json b/sys/src/cmd/hmi/console/comconsole.json
index 7696ec9..17fa846 100644
--- a/sys/src/cmd/hmi/console/comconsole.json
+++ b/sys/src/cmd/hmi/console/comconsole.json
@@ -7,7 +7,7 @@
 		"Oflags": [
 			"-static",
 			"-l9p2000",
-			"-lc"
+			"-ljehanne"
 		],
 		"Program": "comconsole",
 		"SourceFiles": [
diff --git a/sys/src/cmd/hmi/console/pipeconsole.json b/sys/src/cmd/hmi/console/pipeconsole.json
index 385f97b..c7bb478 100644
--- a/sys/src/cmd/hmi/console/pipeconsole.json
+++ b/sys/src/cmd/hmi/console/pipeconsole.json
@@ -7,7 +7,7 @@
 		"Oflags": [
 			"-static",
 			"-l9p2000",
-			"-lc"
+			"-ljehanne"
 		],
 		"Program": "pipeconsole",
 		"SourceFiles": [
diff --git a/sys/src/cmd/hmi/console/screenconsole.json b/sys/src/cmd/hmi/console/screenconsole.json
index 37d1982..3b566df 100644
--- a/sys/src/cmd/hmi/console/screenconsole.json
+++ b/sys/src/cmd/hmi/console/screenconsole.json
@@ -7,7 +7,7 @@
 		"Oflags": [
 			"-static",
 			"-l9p2000",
-			"-lc"
+			"-ljehanne"
 		],
 		"Program": "screenconsole",
 		"SourceFiles": [
diff --git a/sys/src/cmd/hoc/build.json b/sys/src/cmd/hoc/build.json
index d743343..09d83a7 100644
--- a/sys/src/cmd/hoc/build.json
+++ b/sys/src/cmd/hoc/build.json
@@ -12,7 +12,7 @@
 		],
 		"Program": "hoc",
 		"SourceFiles": [
-			"/sys/src/lib/c/lib9.c",
+			"/sys/src/lib/jehanne/lib9.c",
 			"code.c",
 			"init.c",
 			"math.c",
diff --git a/sys/src/cmd/kernel.json b/sys/src/cmd/kernel.json
index 85afe4d..d936257 100644
--- a/sys/src/cmd/kernel.json
+++ b/sys/src/cmd/kernel.json
@@ -19,7 +19,7 @@
 			"/arch/$ARCH/lib/libauth.a",
 			"/arch/$ARCH/lib/libbio.a",
 			"/arch/$ARCH/lib/libip.a",
-			"/arch/$ARCH/lib/libc.a"
+			"/arch/$ARCH/lib/libjehanne.a"
 		],
 		"Oflags": [
 			"-static"
diff --git a/sys/src/cmd/rc/build.json b/sys/src/cmd/rc/build.json
index 3d99741..d0cff4f 100644
--- a/sys/src/cmd/rc/build.json
+++ b/sys/src/cmd/rc/build.json
@@ -13,7 +13,7 @@
 		"Install": "/arch/$ARCH/cmd/",
 		"Program": "rc",
 		"SourceFiles": [
-			"/sys/src/lib/c/lib9.c",
+			"/sys/src/lib/jehanne/lib9.c",
 			"code.c",
 			"exec.c",
 			"getflags.c",
diff --git a/sys/src/cmd/sys/build.json b/sys/src/cmd/sys/build.json
index 2dfb038..5c5d847 100644
--- a/sys/src/cmd/sys/build.json
+++ b/sys/src/cmd/sys/build.json
@@ -6,7 +6,7 @@
 		"Install": "/arch/$ARCH/cmd/sys/",
 		"Oflags": [
 			"-static",
-			"-lc"
+			"-ljehanne"
 		],
 		"Projects": [
 			"call/"
diff --git a/sys/src/kern/amd64/build.json b/sys/src/kern/amd64/build.json
index 3072e0b..192406e 100644
--- a/sys/src/kern/amd64/build.json
+++ b/sys/src/kern/amd64/build.json
@@ -78,7 +78,7 @@
 			"Ramfiles": {
 				"rofs": "/arch/$ARCH/cmd/disk/rofs"
 			},
-			"Systab": "/sys/src/lib/c/9syscall/sys.h"
+			"Systab": "/sys/src/lib/jehanne/9syscall/sys.h"
 		},
 		"Program": "jehanne",
 		"Install": "/arch/$ARCH/kern/",
diff --git a/sys/src/kern/amd64/core.json b/sys/src/kern/amd64/core.json
index 147b036..158789e 100644
--- a/sys/src/kern/amd64/core.json
+++ b/sys/src/kern/amd64/core.json
@@ -8,7 +8,7 @@
 			"-DKERNDATE=1433623937",
 			"-c",
 			"-I.",
-			"-I$JEHANNE/sys/src/lib/c",
+			"-I$JEHANNE/sys/src/lib/jehanne",
 			"-mcmodel=kernel",
 			"-O0",
 			"-static",
diff --git a/sys/src/kern/amd64/inith.json b/sys/src/kern/amd64/inith.json
index eb5e657..cc5cd4e 100644
--- a/sys/src/kern/amd64/inith.json
+++ b/sys/src/kern/amd64/inith.json
@@ -15,7 +15,7 @@
 			"-mcmodel=small"
 		],
 		"Libs": [
-			"/arch/$ARCH/lib/libc.a"
+			"/arch/$ARCH/lib/libjehanne.a"
 		],
 		"Post": [
 			"export TOOL=strip && $TOOLPREFIX$TOOL init",
diff --git a/sys/src/kern/amd64/laptop.json b/sys/src/kern/amd64/laptop.json
index de4dac5..c16218e 100644
--- a/sys/src/kern/amd64/laptop.json
+++ b/sys/src/kern/amd64/laptop.json
@@ -73,7 +73,7 @@
 			"Ramfiles": {
 				"rofs": "/arch/$ARCH/cmd/disk/rofs"
 			},
-			"Systab": "/sys/src/lib/c/9syscall/sys.h"
+			"Systab": "/sys/src/lib/jehanne/9syscall/sys.h"
 		},
 		"Post": [
 			"#strip $JEHANNE/arch/$ARCH/kern/jehanne"
diff --git a/sys/src/kern/amd64/workhorse.json b/sys/src/kern/amd64/workhorse.json
index 032a078..42693c3 100644
--- a/sys/src/kern/amd64/workhorse.json
+++ b/sys/src/kern/amd64/workhorse.json
@@ -92,7 +92,7 @@
 				"comconsole": "/arch/$ARCH/cmd/hmi/comconsole",
 				"srv": "/arch/$ARCH/cmd/srv"
 			},
-			"Systab": "/sys/src/lib/c/9syscall/sys.h"
+			"Systab": "/sys/src/lib/jehanne/9syscall/sys.h"
 		},
 		"Post": [
 			"OBJCOPY=objcopy; $TOOLPREFIX$OBJCOPY -I elf64-x86-64 -O elf32-i386 workhorse $JEHANNE/hacking/bin/workhorse.32bit",
diff --git a/sys/src/kern/boot/build.json b/sys/src/kern/boot/build.json
index 70bc5de..f42f270 100644
--- a/sys/src/kern/boot/build.json
+++ b/sys/src/kern/boot/build.json
@@ -45,7 +45,7 @@
 			"./libboot.a",
 			"/arch/$ARCH/lib/libip.a",
 			"/arch/$ARCH/lib/libauth.a",
-			"/arch/$ARCH/lib/libc.a"
+			"/arch/$ARCH/lib/libjehanne.a"
 		],
 		"Oflags": [
 			"-static"
diff --git a/sys/src/lib/c/.gitignore b/sys/src/lib/jehanne/.gitignore
similarity index 100%
rename from sys/src/lib/c/.gitignore
rename to sys/src/lib/jehanne/.gitignore
diff --git a/sys/src/lib/c/9sys/access.c b/sys/src/lib/jehanne/9sys/access.c
similarity index 100%
rename from sys/src/lib/c/9sys/access.c
rename to sys/src/lib/jehanne/9sys/access.c
diff --git a/sys/src/lib/c/9sys/announce.c b/sys/src/lib/jehanne/9sys/announce.c
similarity index 100%
rename from sys/src/lib/c/9sys/announce.c
rename to sys/src/lib/jehanne/9sys/announce.c
diff --git a/sys/src/lib/c/9sys/awakened.c b/sys/src/lib/jehanne/9sys/awakened.c
similarity index 100%
rename from sys/src/lib/c/9sys/awakened.c
rename to sys/src/lib/jehanne/9sys/awakened.c
diff --git a/sys/src/lib/c/9sys/chdir.c b/sys/src/lib/jehanne/9sys/chdir.c
similarity index 100%
rename from sys/src/lib/c/9sys/chdir.c
rename to sys/src/lib/jehanne/9sys/chdir.c
diff --git a/sys/src/lib/c/9sys/convD2M.c b/sys/src/lib/jehanne/9sys/convD2M.c
similarity index 100%
rename from sys/src/lib/c/9sys/convD2M.c
rename to sys/src/lib/jehanne/9sys/convD2M.c
diff --git a/sys/src/lib/c/9sys/convM2D.c b/sys/src/lib/jehanne/9sys/convM2D.c
similarity index 100%
rename from sys/src/lib/c/9sys/convM2D.c
rename to sys/src/lib/jehanne/9sys/convM2D.c
diff --git a/sys/src/lib/c/9sys/cputime.c b/sys/src/lib/jehanne/9sys/cputime.c
similarity index 100%
rename from sys/src/lib/c/9sys/cputime.c
rename to sys/src/lib/jehanne/9sys/cputime.c
diff --git a/sys/src/lib/c/9sys/ctime.c b/sys/src/lib/jehanne/9sys/ctime.c
similarity index 100%
rename from sys/src/lib/c/9sys/ctime.c
rename to sys/src/lib/jehanne/9sys/ctime.c
diff --git a/sys/src/lib/c/9sys/dial.c b/sys/src/lib/jehanne/9sys/dial.c
similarity index 100%
rename from sys/src/lib/c/9sys/dial.c
rename to sys/src/lib/jehanne/9sys/dial.c
diff --git a/sys/src/lib/c/9sys/dirfstat.c b/sys/src/lib/jehanne/9sys/dirfstat.c
similarity index 100%
rename from sys/src/lib/c/9sys/dirfstat.c
rename to sys/src/lib/jehanne/9sys/dirfstat.c
diff --git a/sys/src/lib/c/9sys/dirfwstat.c b/sys/src/lib/jehanne/9sys/dirfwstat.c
similarity index 100%
rename from sys/src/lib/c/9sys/dirfwstat.c
rename to sys/src/lib/jehanne/9sys/dirfwstat.c
diff --git a/sys/src/lib/c/9sys/dirmodefmt.c b/sys/src/lib/jehanne/9sys/dirmodefmt.c
similarity index 100%
rename from sys/src/lib/c/9sys/dirmodefmt.c
rename to sys/src/lib/jehanne/9sys/dirmodefmt.c
diff --git a/sys/src/lib/c/9sys/dirread.c b/sys/src/lib/jehanne/9sys/dirread.c
similarity index 100%
rename from sys/src/lib/c/9sys/dirread.c
rename to sys/src/lib/jehanne/9sys/dirread.c
diff --git a/sys/src/lib/c/9sys/dirstat.c b/sys/src/lib/jehanne/9sys/dirstat.c
similarity index 100%
rename from sys/src/lib/c/9sys/dirstat.c
rename to sys/src/lib/jehanne/9sys/dirstat.c
diff --git a/sys/src/lib/c/9sys/dirwstat.c b/sys/src/lib/jehanne/9sys/dirwstat.c
similarity index 100%
rename from sys/src/lib/c/9sys/dirwstat.c
rename to sys/src/lib/jehanne/9sys/dirwstat.c
diff --git a/sys/src/lib/c/9sys/dup.c b/sys/src/lib/jehanne/9sys/dup.c
similarity index 100%
rename from sys/src/lib/c/9sys/dup.c
rename to sys/src/lib/jehanne/9sys/dup.c
diff --git a/sys/src/lib/c/9sys/fork.c b/sys/src/lib/jehanne/9sys/fork.c
similarity index 100%
rename from sys/src/lib/c/9sys/fork.c
rename to sys/src/lib/jehanne/9sys/fork.c
diff --git a/sys/src/lib/c/9sys/getenv.c b/sys/src/lib/jehanne/9sys/getenv.c
similarity index 100%
rename from sys/src/lib/c/9sys/getenv.c
rename to sys/src/lib/jehanne/9sys/getenv.c
diff --git a/sys/src/lib/c/9sys/getmainpid.c b/sys/src/lib/jehanne/9sys/getmainpid.c
similarity index 100%
rename from sys/src/lib/c/9sys/getmainpid.c
rename to sys/src/lib/jehanne/9sys/getmainpid.c
diff --git a/sys/src/lib/c/9sys/getnetconninfo.c b/sys/src/lib/jehanne/9sys/getnetconninfo.c
similarity index 100%
rename from sys/src/lib/c/9sys/getnetconninfo.c
rename to sys/src/lib/jehanne/9sys/getnetconninfo.c
diff --git a/sys/src/lib/c/9sys/getpid.c b/sys/src/lib/jehanne/9sys/getpid.c
similarity index 100%
rename from sys/src/lib/c/9sys/getpid.c
rename to sys/src/lib/jehanne/9sys/getpid.c
diff --git a/sys/src/lib/c/9sys/getppid.c b/sys/src/lib/jehanne/9sys/getppid.c
similarity index 100%
rename from sys/src/lib/c/9sys/getppid.c
rename to sys/src/lib/jehanne/9sys/getppid.c
diff --git a/sys/src/lib/c/9sys/getwd.c b/sys/src/lib/jehanne/9sys/getwd.c
similarity index 100%
rename from sys/src/lib/c/9sys/getwd.c
rename to sys/src/lib/jehanne/9sys/getwd.c
diff --git a/sys/src/lib/c/9sys/iounit.c b/sys/src/lib/jehanne/9sys/iounit.c
similarity index 100%
rename from sys/src/lib/c/9sys/iounit.c
rename to sys/src/lib/jehanne/9sys/iounit.c
diff --git a/sys/src/lib/c/9sys/nsec.c b/sys/src/lib/jehanne/9sys/nsec.c
similarity index 100%
rename from sys/src/lib/c/9sys/nsec.c
rename to sys/src/lib/jehanne/9sys/nsec.c
diff --git a/sys/src/lib/c/9sys/nulldir.c b/sys/src/lib/jehanne/9sys/nulldir.c
similarity index 100%
rename from sys/src/lib/c/9sys/nulldir.c
rename to sys/src/lib/jehanne/9sys/nulldir.c
diff --git a/sys/src/lib/c/9sys/ocreate.c b/sys/src/lib/jehanne/9sys/ocreate.c
similarity index 93%
rename from sys/src/lib/c/9sys/ocreate.c
rename to sys/src/lib/jehanne/9sys/ocreate.c
index e153827..c13ebd3 100644
--- a/sys/src/lib/c/9sys/ocreate.c
+++ b/sys/src/lib/jehanne/9sys/ocreate.c
@@ -19,8 +19,8 @@
 #include <u.h>
 #include <libc.h>
 
-/* osys_create works like the Plan 9 create(2) syscall, but with different races.
- * In Plan 9 tjere os a race due to the different behaviour between the
+/* ocreate works like the Plan 9 create(2) syscall, but with different races.
+ * In Plan 9 there is a race due to the different behaviour between the
  * create syscall and the Tcreate message in 9P2000 when the file already exists:
  * see https://github.com/brho/plan9/blob/master/sys/src/9/port/chan.c#L1564-L1603
  * for details.
diff --git a/sys/src/lib/c/9sys/pexec.c b/sys/src/lib/jehanne/9sys/pexec.c
similarity index 100%
rename from sys/src/lib/c/9sys/pexec.c
rename to sys/src/lib/jehanne/9sys/pexec.c
diff --git a/sys/src/lib/c/9sys/pipe.c b/sys/src/lib/jehanne/9sys/pipe.c
similarity index 100%
rename from sys/src/lib/c/9sys/pipe.c
rename to sys/src/lib/jehanne/9sys/pipe.c
diff --git a/sys/src/lib/c/9sys/postnote.c b/sys/src/lib/jehanne/9sys/postnote.c
similarity index 100%
rename from sys/src/lib/c/9sys/postnote.c
rename to sys/src/lib/jehanne/9sys/postnote.c
diff --git a/sys/src/lib/c/9sys/privalloc.c b/sys/src/lib/jehanne/9sys/privalloc.c
similarity index 100%
rename from sys/src/lib/c/9sys/privalloc.c
rename to sys/src/lib/jehanne/9sys/privalloc.c
diff --git a/sys/src/lib/c/9sys/pushssl.c b/sys/src/lib/jehanne/9sys/pushssl.c
similarity index 100%
rename from sys/src/lib/c/9sys/pushssl.c
rename to sys/src/lib/jehanne/9sys/pushssl.c
diff --git a/sys/src/lib/c/9sys/putenv.c b/sys/src/lib/jehanne/9sys/putenv.c
similarity index 100%
rename from sys/src/lib/c/9sys/putenv.c
rename to sys/src/lib/jehanne/9sys/putenv.c
diff --git a/sys/src/lib/c/9sys/qlock.c b/sys/src/lib/jehanne/9sys/qlock.c
similarity index 100%
rename from sys/src/lib/c/9sys/qlock.c
rename to sys/src/lib/jehanne/9sys/qlock.c
diff --git a/sys/src/lib/c/9sys/read.c b/sys/src/lib/jehanne/9sys/read.c
similarity index 92%
rename from sys/src/lib/c/9sys/read.c
rename to sys/src/lib/jehanne/9sys/read.c
index ff70b11..cf84a78 100644
--- a/sys/src/lib/c/9sys/read.c
+++ b/sys/src/lib/jehanne/9sys/read.c
@@ -1,7 +1,7 @@
 /*
  * This file is part of Jehanne.
  *
- * Copyright (C) 2015-2019 Giacomo Tesio <giacomo@tesio.it>
+ * Copyright (C) 2015-2020 Giacomo Tesio <giacomo@tesio.it>
  *
  * Jehanne is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@
 #include <u.h>
 #include <libc.h>
 
-int
+long
 jehanne_read(int fd, void* buf, int nbytes)
 {
 	return sys_pread(fd, buf, nbytes, ~0LL);
diff --git a/sys/src/lib/c/9sys/rerrstr.c b/sys/src/lib/jehanne/9sys/rerrstr.c
similarity index 100%
rename from sys/src/lib/c/9sys/rerrstr.c
rename to sys/src/lib/jehanne/9sys/rerrstr.c
diff --git a/sys/src/lib/c/9sys/segattach.c b/sys/src/lib/jehanne/9sys/segattach.c
similarity index 100%
rename from sys/src/lib/c/9sys/segattach.c
rename to sys/src/lib/jehanne/9sys/segattach.c
diff --git a/sys/src/lib/c/9sys/segbrk.c b/sys/src/lib/jehanne/9sys/segbrk.c
similarity index 100%
rename from sys/src/lib/c/9sys/segbrk.c
rename to sys/src/lib/jehanne/9sys/segbrk.c
diff --git a/sys/src/lib/c/9sys/setnetmtpt.c b/sys/src/lib/jehanne/9sys/setnetmtpt.c
similarity index 100%
rename from sys/src/lib/c/9sys/setnetmtpt.c
rename to sys/src/lib/jehanne/9sys/setnetmtpt.c
diff --git a/sys/src/lib/c/9sys/sleep.c b/sys/src/lib/jehanne/9sys/sleep.c
similarity index 100%
rename from sys/src/lib/c/9sys/sleep.c
rename to sys/src/lib/jehanne/9sys/sleep.c
diff --git a/sys/src/lib/c/9sys/stat.c b/sys/src/lib/jehanne/9sys/stat.c
similarity index 100%
rename from sys/src/lib/c/9sys/stat.c
rename to sys/src/lib/jehanne/9sys/stat.c
diff --git a/sys/src/lib/c/9sys/sysfatal.c b/sys/src/lib/jehanne/9sys/sysfatal.c
similarity index 100%
rename from sys/src/lib/c/9sys/sysfatal.c
rename to sys/src/lib/jehanne/9sys/sysfatal.c
diff --git a/sys/src/lib/c/9sys/syslog.c b/sys/src/lib/jehanne/9sys/syslog.c
similarity index 100%
rename from sys/src/lib/c/9sys/syslog.c
rename to sys/src/lib/jehanne/9sys/syslog.c
diff --git a/sys/src/lib/c/9sys/sysname.c b/sys/src/lib/jehanne/9sys/sysname.c
similarity index 100%
rename from sys/src/lib/c/9sys/sysname.c
rename to sys/src/lib/jehanne/9sys/sysname.c
diff --git a/sys/src/lib/c/9sys/time.c b/sys/src/lib/jehanne/9sys/time.c
similarity index 100%
rename from sys/src/lib/c/9sys/time.c
rename to sys/src/lib/jehanne/9sys/time.c
diff --git a/sys/src/lib/c/9sys/times.c b/sys/src/lib/jehanne/9sys/times.c
similarity index 100%
rename from sys/src/lib/c/9sys/times.c
rename to sys/src/lib/jehanne/9sys/times.c
diff --git a/sys/src/lib/c/9sys/tm2sec.c b/sys/src/lib/jehanne/9sys/tm2sec.c
similarity index 100%
rename from sys/src/lib/c/9sys/tm2sec.c
rename to sys/src/lib/jehanne/9sys/tm2sec.c
diff --git a/sys/src/lib/c/9sys/truerand.c b/sys/src/lib/jehanne/9sys/truerand.c
similarity index 100%
rename from sys/src/lib/c/9sys/truerand.c
rename to sys/src/lib/jehanne/9sys/truerand.c
diff --git a/sys/src/lib/c/9sys/tsemacquire.c b/sys/src/lib/jehanne/9sys/tsemacquire.c
similarity index 100%
rename from sys/src/lib/c/9sys/tsemacquire.c
rename to sys/src/lib/jehanne/9sys/tsemacquire.c
diff --git a/sys/src/lib/c/9sys/wait.c b/sys/src/lib/jehanne/9sys/wait.c
similarity index 100%
rename from sys/src/lib/c/9sys/wait.c
rename to sys/src/lib/jehanne/9sys/wait.c
diff --git a/sys/src/lib/c/9sys/waitpid.c b/sys/src/lib/jehanne/9sys/waitpid.c
similarity index 100%
rename from sys/src/lib/c/9sys/waitpid.c
rename to sys/src/lib/jehanne/9sys/waitpid.c
diff --git a/sys/src/lib/c/9sys/werrstr.c b/sys/src/lib/jehanne/9sys/werrstr.c
similarity index 100%
rename from sys/src/lib/c/9sys/werrstr.c
rename to sys/src/lib/jehanne/9sys/werrstr.c
diff --git a/sys/src/lib/c/9sys/write.c b/sys/src/lib/jehanne/9sys/write.c
similarity index 99%
rename from sys/src/lib/c/9sys/write.c
rename to sys/src/lib/jehanne/9sys/write.c
index 2611695..f0479b5 100644
--- a/sys/src/lib/c/9sys/write.c
+++ b/sys/src/lib/jehanne/9sys/write.c
@@ -18,7 +18,7 @@
 #include <u.h>
 #include <libc.h>
 
-int
+long
 jehanne_write(int fd, const void* buf, int nbytes)
 {
 	return sys_pwrite(fd, buf, nbytes, ~0LL);
diff --git a/sys/src/lib/c/amd64/argv0.c b/sys/src/lib/jehanne/amd64/argv0.c
similarity index 100%
rename from sys/src/lib/c/amd64/argv0.c
rename to sys/src/lib/jehanne/amd64/argv0.c
diff --git a/sys/src/lib/c/amd64/atom.s b/sys/src/lib/jehanne/amd64/atom.s
similarity index 100%
rename from sys/src/lib/c/amd64/atom.s
rename to sys/src/lib/jehanne/amd64/atom.s
diff --git a/sys/src/lib/c/amd64/crt0.s b/sys/src/lib/jehanne/amd64/crt0.s
similarity index 100%
rename from sys/src/lib/c/amd64/crt0.s
rename to sys/src/lib/jehanne/amd64/crt0.s
diff --git a/sys/src/lib/c/amd64/crti.s b/sys/src/lib/jehanne/amd64/crti.s
similarity index 100%
rename from sys/src/lib/c/amd64/crti.s
rename to sys/src/lib/jehanne/amd64/crti.s
diff --git a/sys/src/lib/c/amd64/crtn.s b/sys/src/lib/jehanne/amd64/crtn.s
similarity index 100%
rename from sys/src/lib/c/amd64/crtn.s
rename to sys/src/lib/jehanne/amd64/crtn.s
diff --git a/sys/src/lib/c/amd64/cycles.c b/sys/src/lib/jehanne/amd64/cycles.c
similarity index 100%
rename from sys/src/lib/c/amd64/cycles.c
rename to sys/src/lib/jehanne/amd64/cycles.c
diff --git a/sys/src/lib/c/amd64/getfcr.s b/sys/src/lib/jehanne/amd64/getfcr.s
similarity index 100%
rename from sys/src/lib/c/amd64/getfcr.s
rename to sys/src/lib/jehanne/amd64/getfcr.s
diff --git a/sys/src/lib/c/amd64/initlib.c b/sys/src/lib/jehanne/amd64/initlib.c
similarity index 100%
rename from sys/src/lib/c/amd64/initlib.c
rename to sys/src/lib/jehanne/amd64/initlib.c
diff --git a/sys/src/lib/c/amd64/notejmp.c b/sys/src/lib/jehanne/amd64/notejmp.c
similarity index 100%
rename from sys/src/lib/c/amd64/notejmp.c
rename to sys/src/lib/jehanne/amd64/notejmp.c
diff --git a/sys/src/lib/c/amd64/rdpmc.c b/sys/src/lib/jehanne/amd64/rdpmc.c
similarity index 100%
rename from sys/src/lib/c/amd64/rdpmc.c
rename to sys/src/lib/jehanne/amd64/rdpmc.c
diff --git a/sys/src/lib/c/amd64/setjmp.s b/sys/src/lib/jehanne/amd64/setjmp.s
similarity index 100%
rename from sys/src/lib/c/amd64/setjmp.s
rename to sys/src/lib/jehanne/amd64/setjmp.s
diff --git a/sys/src/lib/c/amd64/sqrt.s b/sys/src/lib/jehanne/amd64/sqrt.s
similarity index 100%
rename from sys/src/lib/c/amd64/sqrt.s
rename to sys/src/lib/jehanne/amd64/sqrt.s
diff --git a/sys/src/lib/c/amd64/stackchk.c b/sys/src/lib/jehanne/amd64/stackchk.c
similarity index 100%
rename from sys/src/lib/c/amd64/stackchk.c
rename to sys/src/lib/jehanne/amd64/stackchk.c
diff --git a/sys/src/lib/c/amd64/tas.s b/sys/src/lib/jehanne/amd64/tas.s
similarity index 100%
rename from sys/src/lib/c/amd64/tas.s
rename to sys/src/lib/jehanne/amd64/tas.s
diff --git a/sys/src/lib/c/apw/abort.c b/sys/src/lib/jehanne/apw/abort.c
similarity index 100%
rename from sys/src/lib/c/apw/abort.c
rename to sys/src/lib/jehanne/apw/abort.c
diff --git a/sys/src/lib/c/apw/div.c b/sys/src/lib/jehanne/apw/div.c
similarity index 100%
rename from sys/src/lib/c/apw/div.c
rename to sys/src/lib/jehanne/apw/div.c
diff --git a/sys/src/lib/c/apw/eprintf.c b/sys/src/lib/jehanne/apw/eprintf.c
similarity index 100%
rename from sys/src/lib/c/apw/eprintf.c
rename to sys/src/lib/jehanne/apw/eprintf.c
diff --git a/sys/src/lib/c/apw/exit.c b/sys/src/lib/jehanne/apw/exit.c
similarity index 100%
rename from sys/src/lib/c/apw/exit.c
rename to sys/src/lib/jehanne/apw/exit.c
diff --git a/sys/src/lib/c/apw/system.c b/sys/src/lib/jehanne/apw/system.c
similarity index 100%
rename from sys/src/lib/c/apw/system.c
rename to sys/src/lib/jehanne/apw/system.c
diff --git a/sys/src/lib/c/build.json b/sys/src/lib/jehanne/build.json
similarity index 98%
rename from sys/src/lib/c/build.json
rename to sys/src/lib/jehanne/build.json
index 9a92f91..98d9267 100644
--- a/sys/src/lib/c/build.json
+++ b/sys/src/lib/jehanne/build.json
@@ -15,7 +15,7 @@
 			"$ARCH/crtn.s"
 		]
 	},
-	"Libc": {
+	"LibJehanne": {
 		"Cflags": [
 			"-fasm"
 		],
@@ -23,10 +23,10 @@
 			"../lib.json"
 		],
 		"Install": "/arch/$ARCH/lib/",
-		"Library": "libc.a",
+		"Library": "libjehanne.a",
 		"Pre": [
 			"usyscalls header $JEHANNE/sys/src/sysconf.json > $JEHANNE/arch/amd64/include/syscalls.h",
-			"usyscalls code $JEHANNE/sys/src/sysconf.json > $JEHANNE/sys/src/lib/c/amd64/syscalls.c"
+			"usyscalls code $JEHANNE/sys/src/sysconf.json > $JEHANNE/sys/src/lib/jehanne/amd64/syscalls.c"
 		],
 		"Post": [
 			"TOOL=ar; $TOOLPREFIX$TOOL rcs $JEHANNE/arch/$ARCH/lib/libssp.a",
diff --git a/sys/src/lib/c/fmt/dofmt.c b/sys/src/lib/jehanne/fmt/dofmt.c
similarity index 100%
rename from sys/src/lib/c/fmt/dofmt.c
rename to sys/src/lib/jehanne/fmt/dofmt.c
diff --git a/sys/src/lib/c/fmt/dorfmt.c b/sys/src/lib/jehanne/fmt/dorfmt.c
similarity index 100%
rename from sys/src/lib/c/fmt/dorfmt.c
rename to sys/src/lib/jehanne/fmt/dorfmt.c
diff --git a/sys/src/lib/c/fmt/errfmt.c b/sys/src/lib/jehanne/fmt/errfmt.c
similarity index 100%
rename from sys/src/lib/c/fmt/errfmt.c
rename to sys/src/lib/jehanne/fmt/errfmt.c
diff --git a/sys/src/lib/c/fmt/fltfmt.c b/sys/src/lib/jehanne/fmt/fltfmt.c
similarity index 100%
rename from sys/src/lib/c/fmt/fltfmt.c
rename to sys/src/lib/jehanne/fmt/fltfmt.c
diff --git a/sys/src/lib/c/fmt/fmt.c b/sys/src/lib/jehanne/fmt/fmt.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmt.c
rename to sys/src/lib/jehanne/fmt/fmt.c
diff --git a/sys/src/lib/c/fmt/fmtdef.h b/sys/src/lib/jehanne/fmt/fmtdef.h
similarity index 100%
rename from sys/src/lib/c/fmt/fmtdef.h
rename to sys/src/lib/jehanne/fmt/fmtdef.h
diff --git a/sys/src/lib/c/fmt/fmtfd.c b/sys/src/lib/jehanne/fmt/fmtfd.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtfd.c
rename to sys/src/lib/jehanne/fmt/fmtfd.c
diff --git a/sys/src/lib/c/fmt/fmtlock.c b/sys/src/lib/jehanne/fmt/fmtlock.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtlock.c
rename to sys/src/lib/jehanne/fmt/fmtlock.c
diff --git a/sys/src/lib/c/fmt/fmtprint.c b/sys/src/lib/jehanne/fmt/fmtprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtprint.c
rename to sys/src/lib/jehanne/fmt/fmtprint.c
diff --git a/sys/src/lib/c/fmt/fmtquote.c b/sys/src/lib/jehanne/fmt/fmtquote.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtquote.c
rename to sys/src/lib/jehanne/fmt/fmtquote.c
diff --git a/sys/src/lib/c/fmt/fmtrune.c b/sys/src/lib/jehanne/fmt/fmtrune.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtrune.c
rename to sys/src/lib/jehanne/fmt/fmtrune.c
diff --git a/sys/src/lib/c/fmt/fmtstr.c b/sys/src/lib/jehanne/fmt/fmtstr.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtstr.c
rename to sys/src/lib/jehanne/fmt/fmtstr.c
diff --git a/sys/src/lib/c/fmt/fmtvprint.c b/sys/src/lib/jehanne/fmt/fmtvprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/fmtvprint.c
rename to sys/src/lib/jehanne/fmt/fmtvprint.c
diff --git a/sys/src/lib/c/fmt/fprint.c b/sys/src/lib/jehanne/fmt/fprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/fprint.c
rename to sys/src/lib/jehanne/fmt/fprint.c
diff --git a/sys/src/lib/c/fmt/print.c b/sys/src/lib/jehanne/fmt/print.c
similarity index 100%
rename from sys/src/lib/c/fmt/print.c
rename to sys/src/lib/jehanne/fmt/print.c
diff --git a/sys/src/lib/c/fmt/runefmtstr.c b/sys/src/lib/jehanne/fmt/runefmtstr.c
similarity index 100%
rename from sys/src/lib/c/fmt/runefmtstr.c
rename to sys/src/lib/jehanne/fmt/runefmtstr.c
diff --git a/sys/src/lib/c/fmt/runeseprint.c b/sys/src/lib/jehanne/fmt/runeseprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runeseprint.c
rename to sys/src/lib/jehanne/fmt/runeseprint.c
diff --git a/sys/src/lib/c/fmt/runesmprint.c b/sys/src/lib/jehanne/fmt/runesmprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runesmprint.c
rename to sys/src/lib/jehanne/fmt/runesmprint.c
diff --git a/sys/src/lib/c/fmt/runesnprint.c b/sys/src/lib/jehanne/fmt/runesnprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runesnprint.c
rename to sys/src/lib/jehanne/fmt/runesnprint.c
diff --git a/sys/src/lib/c/fmt/runesprint.c b/sys/src/lib/jehanne/fmt/runesprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runesprint.c
rename to sys/src/lib/jehanne/fmt/runesprint.c
diff --git a/sys/src/lib/c/fmt/runevseprint.c b/sys/src/lib/jehanne/fmt/runevseprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runevseprint.c
rename to sys/src/lib/jehanne/fmt/runevseprint.c
diff --git a/sys/src/lib/c/fmt/runevsmprint.c b/sys/src/lib/jehanne/fmt/runevsmprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runevsmprint.c
rename to sys/src/lib/jehanne/fmt/runevsmprint.c
diff --git a/sys/src/lib/c/fmt/runevsnprint.c b/sys/src/lib/jehanne/fmt/runevsnprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/runevsnprint.c
rename to sys/src/lib/jehanne/fmt/runevsnprint.c
diff --git a/sys/src/lib/c/fmt/seprint.c b/sys/src/lib/jehanne/fmt/seprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/seprint.c
rename to sys/src/lib/jehanne/fmt/seprint.c
diff --git a/sys/src/lib/c/fmt/smprint.c b/sys/src/lib/jehanne/fmt/smprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/smprint.c
rename to sys/src/lib/jehanne/fmt/smprint.c
diff --git a/sys/src/lib/c/fmt/snprint.c b/sys/src/lib/jehanne/fmt/snprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/snprint.c
rename to sys/src/lib/jehanne/fmt/snprint.c
diff --git a/sys/src/lib/c/fmt/sprint.c b/sys/src/lib/jehanne/fmt/sprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/sprint.c
rename to sys/src/lib/jehanne/fmt/sprint.c
diff --git a/sys/src/lib/c/fmt/vfprint.c b/sys/src/lib/jehanne/fmt/vfprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/vfprint.c
rename to sys/src/lib/jehanne/fmt/vfprint.c
diff --git a/sys/src/lib/c/fmt/vseprint.c b/sys/src/lib/jehanne/fmt/vseprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/vseprint.c
rename to sys/src/lib/jehanne/fmt/vseprint.c
diff --git a/sys/src/lib/c/fmt/vsmprint.c b/sys/src/lib/jehanne/fmt/vsmprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/vsmprint.c
rename to sys/src/lib/jehanne/fmt/vsmprint.c
diff --git a/sys/src/lib/c/fmt/vsnprint.c b/sys/src/lib/jehanne/fmt/vsnprint.c
similarity index 100%
rename from sys/src/lib/c/fmt/vsnprint.c
rename to sys/src/lib/jehanne/fmt/vsnprint.c
diff --git a/sys/src/lib/c/klibc.json b/sys/src/lib/jehanne/klibc.json
similarity index 98%
rename from sys/src/lib/c/klibc.json
rename to sys/src/lib/jehanne/klibc.json
index 5775b35..35a6853 100644
--- a/sys/src/lib/c/klibc.json
+++ b/sys/src/lib/jehanne/klibc.json
@@ -11,7 +11,7 @@
 		"Library": "klibc.a",
 		"Pre": [
 			"usyscalls header $JEHANNE/sys/src/sysconf.json > $JEHANNE/arch/amd64/include/syscalls.h",
-			"usyscalls code $JEHANNE/sys/src/sysconf.json > $JEHANNE/sys/src/lib/c/amd64/syscalls.c"
+			"usyscalls code $JEHANNE/sys/src/sysconf.json > $JEHANNE/sys/src/lib/jehanne/amd64/syscalls.c"
 		],
 		"SourceFiles": [
 			"9sys/convD2M.c",
diff --git a/sys/src/lib/c/lib9.c b/sys/src/lib/jehanne/lib9.c
similarity index 100%
rename from sys/src/lib/c/lib9.c
rename to sys/src/lib/jehanne/lib9.c
diff --git a/sys/src/lib/c/port/_assert.c b/sys/src/lib/jehanne/port/_assert.c
similarity index 100%
rename from sys/src/lib/c/port/_assert.c
rename to sys/src/lib/jehanne/port/_assert.c
diff --git a/sys/src/lib/c/port/abs.c b/sys/src/lib/jehanne/port/abs.c
similarity index 100%
rename from sys/src/lib/c/port/abs.c
rename to sys/src/lib/jehanne/port/abs.c
diff --git a/sys/src/lib/c/port/asin.c b/sys/src/lib/jehanne/port/asin.c
similarity index 100%
rename from sys/src/lib/c/port/asin.c
rename to sys/src/lib/jehanne/port/asin.c
diff --git a/sys/src/lib/c/port/atan.c b/sys/src/lib/jehanne/port/atan.c
similarity index 100%
rename from sys/src/lib/c/port/atan.c
rename to sys/src/lib/jehanne/port/atan.c
diff --git a/sys/src/lib/c/port/atan2.c b/sys/src/lib/jehanne/port/atan2.c
similarity index 100%
rename from sys/src/lib/c/port/atan2.c
rename to sys/src/lib/jehanne/port/atan2.c
diff --git a/sys/src/lib/c/port/atexit.c b/sys/src/lib/jehanne/port/atexit.c
similarity index 100%
rename from sys/src/lib/c/port/atexit.c
rename to sys/src/lib/jehanne/port/atexit.c
diff --git a/sys/src/lib/c/port/atnotify.c b/sys/src/lib/jehanne/port/atnotify.c
similarity index 100%
rename from sys/src/lib/c/port/atnotify.c
rename to sys/src/lib/jehanne/port/atnotify.c
diff --git a/sys/src/lib/c/port/atof.c b/sys/src/lib/jehanne/port/atof.c
similarity index 100%
rename from sys/src/lib/c/port/atof.c
rename to sys/src/lib/jehanne/port/atof.c
diff --git a/sys/src/lib/c/port/atol.c b/sys/src/lib/jehanne/port/atol.c
similarity index 100%
rename from sys/src/lib/c/port/atol.c
rename to sys/src/lib/jehanne/port/atol.c
diff --git a/sys/src/lib/c/port/atoll.c b/sys/src/lib/jehanne/port/atoll.c
similarity index 100%
rename from sys/src/lib/c/port/atoll.c
rename to sys/src/lib/jehanne/port/atoll.c
diff --git a/sys/src/lib/c/port/bsearch.c b/sys/src/lib/jehanne/port/bsearch.c
similarity index 100%
rename from sys/src/lib/c/port/bsearch.c
rename to sys/src/lib/jehanne/port/bsearch.c
diff --git a/sys/src/lib/c/port/charstod.c b/sys/src/lib/jehanne/port/charstod.c
similarity index 100%
rename from sys/src/lib/c/port/charstod.c
rename to sys/src/lib/jehanne/port/charstod.c
diff --git a/sys/src/lib/c/port/cistrcmp.c b/sys/src/lib/jehanne/port/cistrcmp.c
similarity index 100%
rename from sys/src/lib/c/port/cistrcmp.c
rename to sys/src/lib/jehanne/port/cistrcmp.c
diff --git a/sys/src/lib/c/port/cistrncmp.c b/sys/src/lib/jehanne/port/cistrncmp.c
similarity index 100%
rename from sys/src/lib/c/port/cistrncmp.c
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diff --git a/sys/src/lib/c/port/muldiv.c b/sys/src/lib/jehanne/port/muldiv.c
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diff --git a/sys/src/lib/c/port/nan.c b/sys/src/lib/jehanne/port/nan.c
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diff --git a/sys/src/lib/c/port/nrand.c b/sys/src/lib/jehanne/port/nrand.c
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diff --git a/sys/src/lib/c/port/pool.c b/sys/src/lib/jehanne/port/pool.c
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diff --git a/sys/src/lib/c/port/pow.c b/sys/src/lib/jehanne/port/pow.c
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diff --git a/sys/src/lib/c/port/qsort.c b/sys/src/lib/jehanne/port/qsort.c
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diff --git a/sys/src/lib/c/port/quote.c b/sys/src/lib/jehanne/port/quote.c
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diff --git a/sys/src/lib/c/port/rune.c b/sys/src/lib/jehanne/port/rune.c
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diff --git a/sys/src/lib/c/port/runestrcat.c b/sys/src/lib/jehanne/port/runestrcat.c
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diff --git a/sys/src/lib/c/port/runetype.c b/sys/src/lib/jehanne/port/runetype.c
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diff --git a/sys/src/lib/c/port/runetypebody-6.2.0.h b/sys/src/lib/jehanne/port/runetypebody-6.2.0.h
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diff --git a/sys/src/lib/c/port/sinh.c b/sys/src/lib/jehanne/port/sinh.c
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rename from sys/src/lib/c/port/utflen.c
rename to sys/src/lib/jehanne/port/utflen.c
diff --git a/sys/src/lib/c/port/utfnlen.c b/sys/src/lib/jehanne/port/utfnlen.c
similarity index 100%
rename from sys/src/lib/c/port/utfnlen.c
rename to sys/src/lib/jehanne/port/utfnlen.c
diff --git a/sys/src/lib/c/port/utfrrune.c b/sys/src/lib/jehanne/port/utfrrune.c
similarity index 100%
rename from sys/src/lib/c/port/utfrrune.c
rename to sys/src/lib/jehanne/port/utfrrune.c
diff --git a/sys/src/lib/c/port/utfrune.c b/sys/src/lib/jehanne/port/utfrune.c
similarity index 100%
rename from sys/src/lib/c/port/utfrune.c
rename to sys/src/lib/jehanne/port/utfrune.c
diff --git a/sys/src/lib/c/port/utfutf.c b/sys/src/lib/jehanne/port/utfutf.c
similarity index 100%
rename from sys/src/lib/c/port/utfutf.c
rename to sys/src/lib/jehanne/port/utfutf.c
diff --git a/sys/src/lib/klibs.json b/sys/src/lib/klibs.json
index f433b5e..b6cf29a 100644
--- a/sys/src/lib/klibs.json
+++ b/sys/src/lib/klibs.json
@@ -1,7 +1,7 @@
 {
 	"klibs": {
 		"Projects": [
-			"/sys/src/lib/c/klibc.json",
+			"/sys/src/lib/jehanne/klibc.json",
 			"/sys/src/lib/9p2000/klib9p2000.json",
 			"/sys/src/lib/ip/klibip.json",
 			"/sys/src/lib/draw/klibdraw.json",
diff --git a/sys/src/lib/libs.json b/sys/src/lib/libs.json
index 12fe5de..2913b7d 100644
--- a/sys/src/lib/libs.json
+++ b/sys/src/lib/libs.json
@@ -1,7 +1,7 @@
 {
 	"libs.json": {
 		"Projects": [
-			"/sys/src/lib/c/",
+			"/sys/src/lib/jehanne/",
 			"/sys/src/lib/9p2000",
 			"/sys/src/lib/ip/",
 			"/sys/src/lib/draw/",
diff --git a/sys/src/lib/posix/build.json b/sys/src/lib/posix/build.json
index d53d6f1..3bb9c35 100644
--- a/sys/src/lib/posix/build.json
+++ b/sys/src/lib/posix/build.json
@@ -42,7 +42,7 @@
 			"-static",
 			"-lposix",
 			"-l9p2000",
-			"-lc"
+			"-ljehanne"
 		],
 		"SourceFilesCmd": [
 			"posixly.c"
diff --git a/sys/src/lib/posix/files.c b/sys/src/lib/posix/files.c
index b02c67e..5539b97 100644
--- a/sys/src/lib/posix/files.c
+++ b/sys/src/lib/posix/files.c
@@ -344,6 +344,9 @@ POSIX_open(int *errnop, const char *name, int flags, int mode)
 	}
 	if(cperm == 0){
 		f = sys_open(name, omode);
+	} else if ((cperm&DMEXCL) != 0) {
+		cperm &= ~DMEXCL;
+		f = sys_create(name, (unsigned int)omode, (unsigned int)cperm);
 	} else {
 		f = ocreate(name, (unsigned int)omode, (unsigned int)cperm);
 	}