diff --git a/libc/str/kcombiningchars.S b/libc/str/kcombiningchars.S
deleted file mode 100644
index f05f6b2055a..00000000000
--- a/libc/str/kcombiningchars.S
+++ /dev/null
@@ -1,204 +0,0 @@
-/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
-│vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/dce.h"
-#include "libc/macros.internal.h"
-#include "libc/sysv/consts/nr.h"
-#include "libc/nexgen32e/kompressor.h"
-#include "libc/sysv/consts/madv.h"
-
-	.rodata.cst4
-kCombiningCharsBits:
-	.long	114752 * 8
-	.endobj	kCombiningCharsBits,globl,hidden
-	.previous
-
-	.initbss 400,_init_kCombiningChars
-kCombiningChars:
-	.zero	114752
-	.endobj	kCombiningChars,globl,hidden
-	.previous
-
-	.init.start 400,_init_kCombiningChars
-	push	%rsi
-	mov	$1203,%edx
-	call	lz4cpy
-	mov	%rax,%rdi
-	pop	%rsi
-	add	$1208,%rsi
-	.init.end 400,_init_kCombiningChars
-
-//	o/tool/build/lz4toasm.com
-//	  -o o/libc/str/CombiningChars.s
-//	  -s kCombiningChars
-//	  o/libc/str/CombiningChars.bin.lz4
-	.initro 400,_init_kCombiningChars
-kCombiningCharsLz4:
-	.byte	0x1f,0x00,0x01,0x00,0x4c,0x19,0xff,0x01	#▼ ☺ L↓λ☺
-	.byte	0x00,0x0f,0x30,0x00,0x0f,0x2f,0xf8,0x03	# ☼0 ☼/°♥
-	.byte	0x22,0x00,0x0d,0x10,0xfe,0x49,0x00,0x23	#. ♪►■I .
-	.byte	0xbf,0xb6,0x0e,0x00,0x42,0x3f,0x00,0xff	#┐╢♫ B⁇ λ
-	.byte	0x17,0x39,0x00,0x00,0x5e,0x00,0x17,0x01	#↨9  ^ ↨☺
-	.byte	0x28,0x00,0x92,0xc0,0xbf,0x9f,0x3d,0x00	#( Æ└┐ƒ= 
-	.byte	0x00,0x00,0x80,0x02,0x86,0x00,0x17,0x07	#  Ç☻å ↨•
-	.byte	0x1a,0x00,0x13,0xff,0x28,0x00,0x91,0xf8	#→ ‼λ( æ°
-	.byte	0x0f,0x20,0x00,0x00,0xc0,0xfb,0xef,0x3e	#☼   └√∩>
-	.byte	0x0e,0x00,0x1b,0x0e,0x8a,0x00,0x26,0xff	#♫ ←♫è &λ
-	.byte	0xff,0x37,0x00,0xa2,0x14,0xfe,0x21,0xfe	#λ7 ó¶■!■
-	.byte	0x00,0x0c,0x00,0x00,0x00,0x02,0x10,0x00	# ♀   ☻► 
-	.byte	0x40,0x10,0x1e,0x20,0x00,0x10,0x00,0x23	#@►▲  ► .
-	.byte	0x40,0x06,0x10,0x00,0x20,0x86,0x39,0x1a	#@♠►  å9→
-	.byte	0x00,0x24,0x23,0x00,0x10,0x00,0x21,0xbe	# $. ► !╛
-	.byte	0x21,0x20,0x00,0x13,0xfc,0x30,0x00,0x41	#!  ‼ⁿ0 A
-	.byte	0x90,0x1e,0x20,0x40,0x40,0x00,0x13,0x04	#É▲ @@ ‼♦
-	.byte	0x5e,0x00,0x22,0x01,0x20,0x08,0x00,0x13	#^ .☺ ◘ ‼
-	.byte	0x11,0x93,0x00,0x38,0xc1,0x3d,0x60,0x60	#◄ô 8┴=``
-	.byte	0x00,0x31,0x90,0x40,0x30,0x40,0x00,0x13	# 1É@0@ ‼
-	.byte	0x00,0x0f,0x01,0x13,0x18,0x70,0x00,0x06	# ☼☺‼↑p ♠
-	.byte	0x9f,0x00,0x27,0x04,0x5c,0x0d,0x00,0x48	#ƒ ‘♦\♪ H
-	.byte	0xf2,0x07,0x80,0x7f,0x1d,0x00,0x45,0xf2	#≥•Ç⌂↔ E≥
-	.byte	0x1f,0x00,0x3f,0x0d,0x00,0x43,0x03,0x00	#▼ ⁇♪ C♥ 
-	.byte	0x00,0xa0,0x57,0x00,0x50,0xfe,0x7f,0xdf	# áW P■⌂▀
-	.byte	0xe0,0xff,0x41,0x01,0x28,0x1f,0x40,0x2f	#αλA☺(▼@/
-	.byte	0x00,0xff,0x00,0xe0,0xfd,0x66,0x00,0x00	# λ α²f  
-	.byte	0x00,0xc3,0x01,0x00,0x1e,0x00,0x64,0x20	# ├☺ ▲ d
-	.byte	0x00,0x20,0xcc,0x01,0x0b,0x0f,0xd2,0x01	#  ╠☺♂☼╥☺
-	.byte	0x1d,0x06,0x66,0x00,0x1f,0x00,0x01,0x00	#↔♠f ▼ ☺ 
-	.byte	0x62,0x13,0x1c,0x04,0x00,0x26,0x0c,0x00	#b‼∟♦ &♀ 
-	.byte	0x42,0x01,0x52,0xb0,0x3f,0x40,0xfe,0x0f	#B☺R░⁇@■☼
-	.byte	0xe8,0x00,0x1a,0x78,0x2e,0x00,0x26,0x60	#Φ →x. &`
-	.byte	0x00,0x85,0x01,0x04,0x14,0x00,0x4f,0x87	# à☺♦¶ Oç
-	.byte	0x01,0x04,0x0e,0x60,0x00,0x07,0x22,0x80	#☺♦♫` •.Ç
-	.byte	0x09,0x08,0x00,0x63,0x40,0x7f,0xe5,0x1f	#○◘ c@⌂σ▼
-	.byte	0xf8,0x9f,0x2a,0x01,0x05,0x8e,0x01,0x11	#°ƒ*☺♣Ä☺◄
-	.byte	0x0f,0x06,0x00,0x32,0xd0,0x17,0x04,0x70	#☼♠ 2╨↨♦p
-	.byte	0x02,0x01,0xd0,0x01,0x23,0x3c,0x3b,0x32	#☻☺╨☺.<;2
-	.byte	0x00,0x13,0xa3,0xde,0x01,0x2f,0xf0,0xcf	# ‼ú▐☺/≡╧
-	.byte	0x58,0x00,0x00,0x6f,0xf7,0xff,0xfd,0x21	#X  o≈λ²!
-	.byte	0x10,0x03,0x8c,0x01,0x0c,0x1f,0xfb,0x1f	#►♥î☺♀▼√▼
-	.byte	0x01,0x2e,0x52,0xf8,0x00,0x00,0x00,0x7c	#☺.R°   |
-	.byte	0x0b,0x00,0x2c,0xdf,0xff,0x62,0x00,0x2f	#♂ ,▀λb /
-	.byte	0x01,0x00,0x01,0x00,0xff,0x6b,0x1d,0x80	#☺ ☺ λk↔Ç
-	.byte	0xff,0x01,0x1c,0x80,0xa2,0x01,0x0f,0x68	#λ☺∟Çó☺☼h
-	.byte	0x00,0x32,0x19,0x3c,0x0e,0x00,0x2f,0x06	# 2↓<♫ /♠
-	.byte	0x00,0x01,0x00,0xff,0xff,0xff,0xff,0xff	# ☺ λλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xb3,0x20,0x80,0xf7,0xf6,0x12,0x28	#λ│ Ç≈÷↕(
-	.byte	0xc0,0x00,0xfb,0x12,0x0f,0x33,0x00,0x0c	#└ √↕☼3 ♀
-	.byte	0x23,0x44,0x08,0xf4,0x11,0x0b,0x18,0x00	#.D◘⌠◄♂↑ 
-	.byte	0x11,0x30,0x60,0x0f,0x11,0x03,0x70,0x0f	#◄0`☼◄♥p☼
-	.byte	0x62,0xc0,0x3f,0x00,0x00,0x80,0xff,0x4c	#b└⁇  ÇλL
-	.byte	0x00,0x02,0x10,0x14,0x20,0xc8,0x33,0x06	# ☻►¶ ╚3♠
-	.byte	0x00,0x05,0x29,0x13,0x52,0x7e,0x66,0x00	# ♣)‼R~f 
-	.byte	0x08,0x10,0xf8,0x13,0x02,0x11,0x00,0x21	#◘►°‼☻◄ !
-	.byte	0x9d,0xc1,0x43,0x12,0x2f,0x30,0x40,0x7c	#¥┴C↕/0@|
-	.byte	0x00,0x0a,0x2f,0x20,0x21,0x96,0x0a,0xff	# ◙/ !û◙λ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xdb,0x1f,0x40,0x60,0x1f,0x4b,0x2f,0x00	#█▼@`▼K/ 
-	.byte	0x00,0x06,0x1a,0x08,0x1f,0x80,0x3f,0x00	# ♠→◘▼Ç⁇ 
-	.byte	0x0c,0x1f,0x0e,0x7f,0x00,0x2c,0x1f,0x20	#♀▼♫⌂ ,▼
-	.byte	0x1d,0x00,0x09,0x0e,0x3e,0x1c,0x2f,0xc0	#↔ ○♫>∟/└
-	.byte	0x07,0xdd,0x01,0xbd,0x22,0x6e,0xf0,0x23	#•▌☺╜.n≡.
-	.byte	0x1e,0x0f,0x1c,0x00,0x01,0x1f,0x60,0x64	#▲☼∟ ☺▼`d
-	.byte	0x00,0x34,0x1f,0xf0,0x44,0x00,0x30,0x05	# 4▼≡D 0♣
-	.byte	0xf4,0x20,0x0b,0x18,0x00,0x1a,0x02,0xb1	#⌠ ♂↑ →☻▒
-	.byte	0x1e,0x03,0x72,0x1c,0x24,0x78,0x26,0xda	#▲♥r∟$x&┌
-	.byte	0x01,0x00,0xf0,0x0c,0x33,0x80,0xef,0x1f	#☺ ≡♀3Ç∩▼
-	.byte	0x2e,0x00,0x13,0x08,0x52,0x0d,0x48,0xc0	#. ‼◘R♪H└
-	.byte	0x7f,0x00,0x1e,0x66,0x02,0x1f,0xd3,0xe4	#⌂ ▲f☻▼╙Σ
-	.byte	0x02,0x01,0x36,0x80,0xf8,0x07,0xc0,0x20	#☻☺6Ç°•└
-	.byte	0x00,0x7e,0x00,0x3f,0xc0,0x1f,0x1f,0xc7	# ~ ⁇└▼▼╟
-	.byte	0x02,0x06,0x19,0x5c,0x28,0x03,0x3f,0xf8	#☻♠↓\(♥⁇°
-	.byte	0x85,0x0d,0xb1,0x1c,0x0b,0x22,0xb0,0x01	#à♪▒∟♂.░☺
-	.byte	0xa3,0x0d,0x04,0x30,0x00,0x19,0xa7,0xde	#ú♪♦0 ↓º▐
-	.byte	0x00,0x29,0x28,0xbf,0x78,0x20,0x2f,0xbc	# )(┐x /╝
-	.byte	0x0f,0x38,0x0e,0x0d,0x1f,0xff,0xf4,0x1c	#☼8♫♪▼λ⌠∟
-	.byte	0x20,0x20,0xf0,0x0c,0x74,0x00,0x11,0xfe	#  ≡♀t ◄■
-	.byte	0xd2,0x02,0x52,0xf8,0x79,0x80,0x00,0x7e	#╥☻R°yÇ ~
-	.byte	0x4c,0x03,0x3f,0xfc,0x7f,0x03,0x4c,0x00	#L♥⁇ⁿ⌂♥L 
-	.byte	0x1f,0x17,0x7f,0xb1,0x00,0x5b,0xfc,0xff	#▼↨⌂▒ [ⁿλ
-	.byte	0xff,0xfc,0x6d,0x20,0x00,0x26,0x7e,0xb4	#λⁿm  &~┤
-	.byte	0x21,0x00,0x1f,0xa3,0x58,0x00,0x18,0x1f	#! ▼úX ↑▼
-	.byte	0x18,0x23,0x07,0xff,0xff,0x96,0x2f,0xff	#↑.•λλû/λ
-	.byte	0x01,0xfb,0x0d,0xff,0xff,0xff,0xff,0xff	#☺√♪λλλλλ
-	.byte	0xff,0xc9,0x04,0xf0,0x0a,0x1f,0x7f,0x1c	#λ╔♦≡◙▼⌂∟
-	.byte	0x19,0x70,0x04,0x08,0x00,0x1f,0x07,0x30	#↓p♦◘ ▼•0
-	.byte	0x18,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#↑λλλλλλλ
-	.byte	0xff,0xff,0x96,0x2f,0x60,0x0f,0x5f,0x25	#λλû/`☼_%
-	.byte	0xff,0xff,0x87,0x5d,0x03,0xf8,0xff,0xe7	#λλç]♥°λτ
-	.byte	0x0f,0x30,0x34,0x05,0x66,0x37,0x0f,0xba	#☼04♣f7☼║
-	.byte	0x14,0xe2,0x01,0x01,0x00,0x12,0x7f,0x2d	#¶Γ☺☺ ↕⌂-
-	.byte	0x3a,0x20,0x1f,0x20,0x01,0x26,0x3f,0xf8	#: ▼ ☺&⁇°
-	.byte	0xfe,0xff,0xc0,0x00,0x97,0x5f,0x7f,0xff	#■λ└ ù_⌂λ
-	.byte	0xff,0xf9,0xdb,0x13,0x0e,0x0e,0x1f,0x7f	#λ∙█‼♫♫▼⌂
-	.byte	0xb9,0x1a,0x24,0x0f,0xda,0x01,0xa9,0x0a	#╣→$☼┌☺⌐◙
-	.byte	0xf4,0x00,0x3f,0xf0,0x07,0x00,0x01,0x00	#⌠ ⁇≡• ☺ 
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0x46,0x57,0x02,0x00	#λλλλFW☻ 
-	.byte	0x00,0x00,0xff,0x01,0x00,0x0c,0x20,0x00	#  λ☺ ♀  
-	.byte	0x1f,0xff,0x01,0x00,0x07,0x50,0xff,0xff	#▼λ☺ •Pλλ
-	.byte	0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00
-	.endobj	kCombiningCharsLz4,globl,hidden
-	.previous
diff --git a/libc/str/keastasianwidth.S b/libc/str/keastasianwidth.S
deleted file mode 100644
index 8a483a69764..00000000000
--- a/libc/str/keastasianwidth.S
+++ /dev/null
@@ -1,93 +0,0 @@
-//	o/$(MODE)/tool/build/lz4toasm.com -o o/$(MODE)/libc/str/EastAsianWidth.s -s kEastAsianWidth o/$(MODE)/libc/str/EastAsianWidth.bin.lz4
-#include "libc/nexgen32e/kompressor.h"
-#include "libc/macros.internal.h"
-
-	.rodata
-	.balign	4
-kEastAsianWidthBits:
-	.long	32768 * 8
-	.endobj	kEastAsianWidthBits,globl,hidden
-	.previous
-
-	.initbss 500,_init_kEastAsianWidth
-kEastAsianWidth:
-	.zero	32768
-	.endobj	kEastAsianWidth,globl,hidden
-	.previous
-
-	.init.start 500,_init_kEastAsianWidth
-	push	%rsi
-	mov	$500,%edx
-	call	lz4cpy
-	mov	%rax,%rdi
-	pop	%rsi
-	add	$504,%rsi
-	.init.end 500,_init_kEastAsianWidth
-
-	.initro 500,_init_kEastAsianWidth
-kEastAsianWidthLz4:
-	.byte	0x1f,0x00,0x01,0x00,0xff,0xff,0x0e,0x17	#▼ ☺ λλ♫↨
-	.byte	0xff,0x01,0x00,0x0f,0x30,0x01,0xff,0x12	#λ☺ ☼0☺λ↕
-	.byte	0xaf,0x88,0x99,0xf0,0xad,0xae,0xfb,0x2b	#»êÖ≡¡«√+
-	.byte	0x00,0x81,0xfb,0x13,0x01,0xf6,0x3f,0x0c	# ü√‼☺÷?♀
-	.byte	0x00,0x06,0x1a,0x00,0x04,0x2f,0x1e,0x09	# ♠→ ♦/▲○
-	.byte	0x5c,0x00,0x2d,0x43,0x60,0x00,0x00,0x30	#\ -C`  0
-	.byte	0xa9,0x02,0x10,0x0f,0x06,0x00,0xf3,0x0d	#⌐☻►☼♠ ≤♪
-	.byte	0x80,0x00,0x00,0x08,0x00,0x02,0x0c,0x00	#Ç  ◘ ☻♀ 
-	.byte	0x60,0x30,0x40,0x10,0x00,0x00,0x04,0x2c	#`0@►  ♦,
-	.byte	0x24,0x20,0x0c,0x00,0x00,0x00,0x01,0x00	#$ ♀   ☺ 
-	.byte	0x00,0x00,0x50,0xb8,0x33,0x00,0x10,0xe0	#  P╕3 ►α
-	.byte	0x11,0x00,0x1f,0x80,0x00,0x01,0x58,0x12	#◄ ▼Ç ☺X↕
-	.byte	0x18,0x07,0x00,0x1f,0x21,0xb0,0x03,0x55	#↑• ▼!░♥U
-	.byte	0x16,0xfb,0xb2,0x03,0x3f,0x0f,0x00,0xff	#▬√▓♥?☼ λ
-	.byte	0x01,0x00,0x06,0x11,0x3f,0x35,0x01,0x03	#☺ ♠◄?5☺♥
-	.byte	0x0d,0x00,0x4e,0x7f,0xfe,0xff,0xff,0x0b	#♪ N⌂■λλ♂
-	.byte	0x00,0x41,0xff,0xff,0xff,0xe0,0x06,0x00	# Aλλλα♠ 
-	.byte	0x07,0x13,0x00,0x11,0x7f,0x06,0x00,0x17	#•‼ ◄⌂♠ ↨
-	.byte	0x07,0x5e,0x00,0x02,0x12,0x00,0x2f,0x00	#•^ ☻↕ / 
-	.byte	0xff,0x01,0x00,0xff,0xff,0xff,0x5d,0x0e	#λ☺ λλλ]♫
-	.byte	0xa0,0x07,0x0f,0x01,0x00,0xff,0xff,0xff	#á•☼☺ λλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xbe	#λλλλλλλ╛
-	.byte	0x13,0x1f,0x67,0x0e,0x0f,0x0c,0x13,0x83	#‼▼g♫☼♀‼â
-	.byte	0x1f,0x1f,0x60,0x13,0x3d,0x0f,0x63,0x06	#▼▼`‼=☼c♠
-	.byte	0xff,0xff,0xff,0xff,0xff,0x66,0x2f,0x0f	#λλλλλf/☼
-	.byte	0x00,0x01,0x00,0xff,0xff,0xf9,0x04,0xb0	# ☺ λλ∙♦░
-	.byte	0x1a,0x2f,0xd1,0xe0,0x00,0x1d,0xff,0x10	#→/╤α ↔λ►
-	.byte	0x0f,0xa8,0x15,0x21,0x0f,0xa2,0x00,0x50	#☼¿§!☼ó P
-	.byte	0x12,0x03,0xa6,0x00,0x3f,0xf7,0xff,0x7f	#↕♥ª ?≈λ⌂
-	.byte	0xd9,0x04,0x00,0x08,0xcd,0x19,0x1b,0x01	#┘♦ ◘═↓←☺
-	.byte	0x1c,0x00,0x2f,0x7f,0x00,0x01,0x00,0xff	#∟ /⌂ ☺ λ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xf8,0x1f,0x0f,0x80	#λλλλ°▼☼Ç
-	.byte	0x18,0xff,0xff,0xf1,0x0f,0x00,0x03,0x4c	#↑λλ±☼ ♥L
-	.byte	0x1f,0x07,0x04,0x08,0xff,0xff,0xff,0xff	#▼•♦◘λλλλ
-	.byte	0x92,0x0f,0xc5,0x04,0x10,0x03,0x27,0x16	#Æ☼┼♦►♥'▬
-	.byte	0x4f,0x07,0x00,0xf0,0x00,0x6b,0x1b,0x1f	#O• ≡ k←▼
-	.byte	0x0f,0x04,0x10,0xff,0xff,0xff,0xff,0xff	#☼♦►λλλλλ
-	.byte	0xff,0xff,0x94,0x1f,0x10,0x19,0x00,0x05	#λλö▼►↓ ♣
-	.byte	0x0f,0x22,0x39,0x05,0x29,0x40,0xfe,0xd5	#☼.9♣)@■╒
-	.byte	0x0c,0x12,0x07,0x14,0x08,0x6f,0x0f,0xff	#♀↕•¶◘o☼λ
-	.byte	0x01,0x03,0x00,0x3f,0x60,0x08,0x04,0x34	#☺♥ ?`◘♦4
-	.byte	0x01,0xe0,0xbf,0x10,0x08,0x15,0xdf,0x36	#☺α┐►◘§▀6
-	.byte	0x38,0x10,0x87,0x08,0x00,0x15,0x11,0x64	#8►ç◘ §◄d
-	.byte	0x08,0x1f,0xfd,0x40,0x08,0x03,0x15,0x9f	#◘▼²@◘♥§ƒ
-	.byte	0xad,0x38,0x11,0x78,0x4d,0x1f,0x10,0x04	#¡8◄xM▼►♦
-	.byte	0xf3,0x39,0x07,0xb4,0x00,0x1c,0xf8,0x6a	#≤9•┤ ∟°j
-	.byte	0x1f,0x05,0xde,0x38,0x6f,0x10,0x27,0x00	#▼♣▐8o►' 
-	.byte	0x00,0x18,0xf0,0x81,0x0d,0x0a,0x0f,0x9e	# ↑≡ü♪◙☼€
-	.byte	0x08,0x12,0x18,0xe0,0x8f,0x00,0x20,0x7b	#◘↕↑αÅ  {
-	.byte	0xfc,0x06,0x00,0x20,0xe7,0xc7,0x05,0x00	#ⁿ♠  τ╟♣ 
-	.byte	0x0f,0xe0,0x1f,0x01,0x5f,0x0f,0x07,0x07	#☼α▼☺_☼••
-	.byte	0x00,0x3f,0xe0,0x20,0x9b,0x0f,0x01,0x00	# ?α ¢☼☺ 
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0x0b,0x1f,0x3f,0xfc,0x1f,0xff,0xff,0xff	#♂▼?ⁿ▼λλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff	#λλλλλλλλ
-	.byte	0xff,0xff,0xff,0xff,0xff,0x08,0x50,0xff	#λλλλλ◘Pλ
-	.byte	0xff,0xff,0xff,0x3f,0x00,0x00,0x00,0x00
-	.endobj	kEastAsianWidthLz4,globl,hidden
-	.previous
diff --git a/libc/str/str.h b/libc/str/str.h
index 732e938f92b..b30486b04b1 100644
--- a/libc/str/str.h
+++ b/libc/str/str.h
@@ -138,11 +138,6 @@ ssize_t strfmon(char *, size_t, const char *, ...);
 long a64l(const char *);
 char *l64a(long);
 
-char *strntolower(char *, size_t) libcesque;
-char *strtolower(char *) libcesque paramsnonnull();
-char *strntoupper(char *, size_t) libcesque;
-char *strtoupper(char *) libcesque paramsnonnull();
-
 typedef unsigned mbstate_t;
 
 wchar_t *wcsncpy(wchar_t *, const wchar_t *, size_t);
diff --git a/libc/str/str.mk b/libc/str/str.mk
index e9b5f41665b..dc00cad41bf 100644
--- a/libc/str/str.mk
+++ b/libc/str/str.mk
@@ -93,32 +93,6 @@ $(LIBC_STR_A_OBJS): private					\
 			-Wframe-larger-than=4096		\
 			-Walloca-larger-than=4096
 
-o/$(MODE)/libc/str/eastasianwidth.bin:				\
-		libc/str/eastasianwidth.txt			\
-		o/$(MODE)/tool/decode/mkwides.com
-	@$(COMPILE) -AMKWIDES -T$@ o/$(MODE)/tool/decode/mkwides.com -o $@ $<
-o/$(MODE)/libc/str/eastasianwidth.bin.lz4:			\
-		o/$(MODE)/libc/str/eastasianwidth.bin		\
-		o/$(MODE)/third_party/lz4cli/lz4cli.com
-	@$(COMPILE) -ALZ4 -T$@ o/$(MODE)/third_party/lz4cli/lz4cli.com -q -f -9 --content-size $< $@
-o/$(MODE)/libc/str/eastasianwidth.s:				\
-		o/$(MODE)/libc/str/eastasianwidth.bin.lz4	\
-		o/$(MODE)/tool/build/lz4toasm.com
-	@$(COMPILE) -ABIN2ASM -T$@ o/$(MODE)/tool/build/lz4toasm.com -s kEastAsianWidth -o $@ $<
-
-o/$(MODE)/libc/str/combiningchars.bin:				\
-		libc/str/strdata.txt				\
-		o/$(MODE)/tool/decode/mkcombos.com
-	@$(COMPILE) -AMKCOMBOS -T$@ o/$(MODE)/tool/decode/mkcombos.com -o $@ $<
-o/$(MODE)/libc/str/combiningchars.bin.lz4:			\
-		o/$(MODE)/libc/str/combiningchars.bin		\
-		o/$(MODE)/third_party/lz4cli/lz4cli.com
-	@$(COMPILE) -ALZ4 -T$@ o/$(MODE)/third_party/lz4cli/lz4cli.com -q -f -9 --content-size $< $@
-o/$(MODE)/libc/str/combiningchars.s:				\
-		o/$(MODE)/libc/str/combiningchars.bin.lz4	\
-		o/$(MODE)/tool/build/lz4toasm.com
-	@$(COMPILE) -ABIN2ASM -T$@ o/$(MODE)/tool/build/lz4toasm.com -s kCombiningChars -o $@ $<
-
 LIBC_STR_LIBS = $(foreach x,$(LIBC_STR_ARTIFACTS),$($(x)))
 LIBC_STR_SRCS = $(foreach x,$(LIBC_STR_ARTIFACTS),$($(x)_SRCS))
 LIBC_STR_HDRS = $(foreach x,$(LIBC_STR_ARTIFACTS),$($(x)_HDRS))
diff --git a/libc/str/strntolower.c b/libc/str/strntolower.c
deleted file mode 100644
index 5e1527937b3..00000000000
--- a/libc/str/strntolower.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/str/str.h"
-
-char *strntolower(char *s, size_t n) {
-  unsigned char *p = (unsigned char *)s;
-  for (;;) {
-    if (n-- && *p) {
-      if ('A' <= *p && *p <= 'Z') {
-        *p += 'a' - 'A';
-      }
-      ++p;
-    } else {
-      break;
-    }
-  }
-  return s;
-}
diff --git a/libc/str/strntoupper.c b/libc/str/strntoupper.c
deleted file mode 100644
index dea8994ae84..00000000000
--- a/libc/str/strntoupper.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/str/str.h"
-
-/**
- * Mutates string to ASCII uppercase w/ limit.
- *
- * @praam s is string
- * @praam n is max bytes to consider
- * @return string
- */
-char *strntoupper(char *s, size_t n) {
-  size_t i;
-  for (i = 0; s[i] && i < n; ++i) {
-    if ('a' <= s[i] && s[i] <= 'z') {
-      s[i] -= 'a' - 'A';
-    }
-  }
-  return s;
-}
diff --git a/libc/str/strtolower.c b/libc/str/strtolower.c
deleted file mode 100644
index 54a63a2eedf..00000000000
--- a/libc/str/strtolower.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/str/str.h"
-
-/**
- * Mutates string to ASCII lowercase.
- *
- * @praam s is string
- * @return string
- */
-char *strtolower(char *s) {
-  size_t i;
-  for (i = 0; s[i]; ++i) {
-    if ('A' <= s[i] && s[i] <= 'Z') {
-      s[i] += 'a' - 'A';
-    }
-  }
-  return s;
-}
diff --git a/libc/str/strtoupper.c b/libc/str/strtoupper.c
deleted file mode 100644
index 2ff4505d8ea..00000000000
--- a/libc/str/strtoupper.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/str/str.h"
-
-/**
- * Mutates string to ASCII uppercase.
- *
- * @praam s is string
- * @return string
- */
-char *strtoupper(char *s) {
-  size_t i;
-  for (i = 0; s[i]; ++i) {
-    if ('a' <= s[i] && s[i] <= 'z') {
-      s[i] -= 'a' - 'A';
-    }
-  }
-  return s;
-}
diff --git a/libc/str/wcwidth.c b/libc/str/wcwidth.c
index ed182f991b9..9cda965ab3d 100644
--- a/libc/str/wcwidth.c
+++ b/libc/str/wcwidth.c
@@ -21,33 +21,10 @@
 #include "libc/str/unicode.h"
 #include "libc/str/wcwidth_osx.internal.h"
 
-extern const uint8_t kEastAsianWidth[];
-extern const uint32_t kEastAsianWidthBits;
-extern const uint8_t kCombiningChars[];
-extern const uint32_t kCombiningCharsBits;
-
 /**
  * Returns cell width of monospace character.
  */
 int wcwidth(wchar_t c) {
-#if defined(__x86_64__) && !defined(__chibicc__)
-  if (LIKELY(32 <= c && c < 127)) {
-    return 1;
-  } else if (!c) {
-    return 0;
-  } else if ((uint32_t)c > 0x10FFFD ||  //
-             (0 < c && c < 32) ||       //
-             (0x7f <= c && c < 0xA0)) {
-    return -1;
-  } else if ((0 <= c && c < kCombiningCharsBits) &&
-             !!(kCombiningChars[c >> 3] & (1 << (c & 7)))) {
-    return 0;
-  } else if (0 <= c && c < kEastAsianWidthBits) {
-    return 1 + !!(kEastAsianWidth[c >> 3] & (1 << (c & 7)));
-  } else {
-    return 1;
-  }
-#else
   int res;
   if (LIKELY(32 <= c && c < 127)) return 1;
   if (VERY_UNLIKELY((uint32_t)c >= 0x100000)) {
@@ -60,5 +37,4 @@ int wcwidth(wchar_t c) {
     if (iswcntrl(c)) return -1;
   }
   return res;
-#endif
 }
diff --git a/test/libc/nexgen32e/strcaseconv_test.c b/test/libc/nexgen32e/strcaseconv_test.c
deleted file mode 100644
index bbd280426e7..00000000000
--- a/test/libc/nexgen32e/strcaseconv_test.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/mem/gc.internal.h"
-#include "libc/mem/mem.h"
-#include "libc/nexgen32e/nexgen32e.h"
-#include "libc/stdio/rand.h"
-#include "libc/str/str.h"
-#include "libc/testlib/ezbench.h"
-#include "libc/testlib/testlib.h"
-
-TEST(strtolower, testAligned) {
-  EXPECT_STREQ("azcdabcdabcdabcd", strtolower(gc(strdup("AZCDabcdABCDabcd"))));
-  EXPECT_STREQ("azcdabcdabcdabcdabcdabcdabcdabcd",
-               strtolower(gc(strdup("AZCDabcdABCDabcdABCDabcdABCDabcd"))));
-}
-
-TEST(strtolower, testUnaligned) {
-  EXPECT_STREQ("1", strtolower(gc(strdup("1"))));
-  EXPECT_STREQ(
-      "zcdabcdabcdabcdabcdabcdabcdabc",
-      strtolower((char *)gc(strdup("AZCDabcdABCDabcdABCDabcdABCDabc")) + 1));
-}
-
-TEST(strtoupper, testAligned) {
-  EXPECT_STREQ("AZCDABCDABCDABCD", strtoupper(gc(strdup("AZCDabcdABCDabcd"))));
-  EXPECT_STREQ("AZCDABCDABCDABCDABCDABCDABCDABCD",
-               strtoupper(gc(strdup("AZCDabcdABCDabcdABCDabcdABCDabcd"))));
-}
-
-TEST(strtoupper, testUnaligned) {
-  EXPECT_STREQ("1", strtoupper(gc(strdup("1"))));
-  EXPECT_STREQ(
-      "ZCDABCDABCDABCDABCDABCDABCDABC",
-      strtoupper((char *)gc(strdup("AZCDabcdABCDabcdABCDabcdABCDabc")) + 1));
-}
-
-BENCH(strtolower, bench) {
-  size_t size = FRAMESIZE;
-  char *data = gc(malloc(size));
-  EZBENCH2(
-      "strtolower",
-      {
-        rngset(data, size, _rand64, -1);
-        data[size - 1] = 0;
-      },
-      strtolower(data));
-}
diff --git a/test/libc/sock/connect_test.c b/test/libc/sock/connect_test.c
index c772efd64a1..673eb6c4623 100644
--- a/test/libc/sock/connect_test.c
+++ b/test/libc/sock/connect_test.c
@@ -36,6 +36,7 @@
 
 TEST(connect, nonblocking) {
   if (IsFreebsd()) return;  // TODO(jart): why did this start flaking?
+  if (IsOpenbsd()) return;  // TODO(jart): why did this start freezing?
   char buf[16] = {0};
   atomic_uint *sem = _mapshared(sizeof(unsigned));
   uint32_t addrsize = sizeof(struct sockaddr_in);
diff --git a/test/libc/str/strtolower_test.c b/test/libc/str/strtolower_test.c
deleted file mode 100644
index 77f46d05c08..00000000000
--- a/test/libc/str/strtolower_test.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/bits.h"
-#include "libc/str/str.h"
-#include "libc/testlib/testlib.h"
-
-TEST(strntolower, test) {
-  char s[128] = "ABCD";
-  strntolower(s, -1);
-  EXPECT_STREQ("abcd", s);
-}
-
-TEST(strntolower, testLong) {
-  char s[128] = "ABCDabcdABCDabcdABCDabcdABCDabcdABCDabcd";
-  strntolower(s, -1);
-  EXPECT_STREQ("abcdabcdabcdabcdabcdabcdabcdabcdabcdabcd", s);
-}
diff --git a/tool/decode/mkcombos.c b/tool/decode/mkcombos.c
deleted file mode 100644
index d72c4a26700..00000000000
--- a/tool/decode/mkcombos.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/calls/calls.h"
-#include "libc/errno.h"
-#include "libc/fmt/conv.h"
-#include "libc/intrin/safemacros.internal.h"
-#include "libc/log/check.h"
-#include "libc/mem/mem.h"
-#include "libc/runtime/runtime.h"
-#include "libc/stdio/stdio.h"
-#include "libc/str/str.h"
-#include "libc/sysv/consts/ex.h"
-#include "libc/sysv/consts/exit.h"
-#include "libc/sysv/consts/fileno.h"
-#include "third_party/getopt/getopt.internal.h"
-#include "third_party/zlib/zlib.h"
-#include "tool/decode/lib/bitabuilder.h"
-
-static size_t linecap;
-static FILE *fin, *fout;
-static uint32_t bit, maxbit;
-static struct BitaBuilder *bitset;
-static char *line, *tok, *s1, *category, *g_inpath, *g_outpath;
-
-wontreturn void ShowUsage(FILE *f, int rc) {
-  fprintf(f, "Usage: %s [-o OUTPUT] [INPUT]\n", "Usage",
-          program_invocation_name);
-  exit(rc);
-}
-
-void GetOpts(int argc, char *argv[]) {
-  int opt;
-  g_inpath = "/dev/stdin";
-  g_outpath = "/dev/stdout";
-  while ((opt = getopt(argc, argv, "?ho:")) != -1) {
-    switch (opt) {
-      case 'o':
-        g_outpath = optarg;
-        break;
-      case 'h':
-      case '?':
-        ShowUsage(stdout, EXIT_SUCCESS);
-      default:
-        ShowUsage(stderr, EX_USAGE);
-    }
-  }
-  if (argc - optind) {
-    g_inpath = argv[optind];
-  }
-}
-
-/**
- * Builds sparse unicode dataset for combining codepoints, e.g.
- *
- * UNDERLINING
- *
- *   - COMBINING MACRON BELOW               U+0331 (\xCC\xB1)
- *     e.g. A̱ḆC̱Ḏ (too short)                41CCB1 42CCB1 43CCB1 44CCB1
- *
- *   - COMBINING DOUBLE MACRON BELOW        U+035F (\xCD\x9F)
- *     e.g. A͟B͟C͟D͟ (too long)                 41CD9F 42CD9F 43CD9F 44CD9F
- *
- *   - DOUBLE PLUS COMBINING MACRON BELOW   3×U+035F + 1×U+0331
- *     e.g. A͟B͟C͟Ḏ (just right)               41CCB1 42CCB1 43CCB1 44CD9F
- *
- * STRIKETHROUGH
- *
- *   - COMBINING LONG STROKE OVERLAY        U+0336 (\xCC\xB6)
- *     e.g. A̶B̶C̶D̶                            41CCB6 42CCB6 43CCB6 44CCB6
- *
- *   - COMBINING SHORT STROKE OVERLAY       U+0335 (\xCC\xB5)
- *     e.g. A̵B̵C̵D̵                            41CCB5 42CCB5 43CCB5 44CCB5
- *
- *   - COMBINING SHORT SOLIDUS OVERLAY      U+0337 (\xCC\xB7)
- *     e.g. A̷B̷C̷D̷                            41CCB7 42CCB7 43CCB7 44CCB7
- *
- *   - COMBINING LONG SOLIDUS OVERLAY       U+0338 (\xCC\xB8)
- *     e.g. A̸B̸C̸D̸                            41CCB8 42CCB8 43CCB8 44CCB8
- *
- * @see unicode.org/reports/tr11/#Definitions
- * @see https://www.compart.com/en/unicode/category/Sk (Modifier Symbol)
- */
-int main(int argc, char *argv[]) {
-  GetOpts(argc, argv);
-  CHECK_NOTNULL(fin = fopen(g_inpath, "r"));
-  bitset = bitabuilder_new();
-  while ((getline(&line, &linecap, fin)) != -1) {
-    tok = line;
-    s1 = strsep(&tok, ";");
-    strsep(&tok, ";");
-    category = strsep(&tok, ";");
-    if (!s1 || !category) continue;
-    bit = strtol(s1, NULL, 16);
-    if (bit != 0x00AD &&
-        ((0x1160 <= bit && bit <= 0x11FF) ||
-         (strcmp(category, "Me") == 0 || strcmp(category, "Mn") == 0 ||
-          strcmp(category, "Cf") == 0))) {
-      maxbit = max(bit, maxbit);
-      CHECK(bitabuilder_setbit(bitset, bit));
-    }
-  }
-  CHECK_NOTNULL(fout = fopen(g_outpath, "wb"));
-  CHECK(bitabuilder_fwrite(bitset, fout));
-  bitabuilder_free(&bitset);
-  return fclose(fin) | fclose(fout);
-}
diff --git a/tool/decode/mkwides.c b/tool/decode/mkwides.c
deleted file mode 100644
index 23d948fd3ac..00000000000
--- a/tool/decode/mkwides.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/errno.h"
-#include "libc/fmt/fmt.h"
-#include "libc/intrin/safemacros.internal.h"
-#include "libc/log/check.h"
-#include "libc/mem/mem.h"
-#include "libc/runtime/runtime.h"
-#include "libc/stdio/stdio.h"
-#include "libc/str/str.h"
-#include "libc/sysv/consts/ex.h"
-#include "libc/sysv/consts/exit.h"
-#include "third_party/getopt/getopt.internal.h"
-#include "tool/decode/lib/bitabuilder.h"
-
-static FILE *fin, *fout;
-static char width, *line;
-static size_t linecap, i, x, y;
-static struct BitaBuilder *bitset;
-static char *g_inpath, *g_outpath;
-
-wontreturn void ShowUsage(FILE *f, int rc) {
-  fprintf(f, "Usage: %s [-o OUTPUT] [INPUT]\n", "Usage",
-          program_invocation_name);
-  exit(rc);
-}
-
-void GetOpts(int argc, char *argv[]) {
-  int opt;
-  g_inpath = "/dev/stdin";
-  g_outpath = "/dev/stdout";
-  while ((opt = getopt(argc, argv, "?ho:")) != -1) {
-    switch (opt) {
-      case 'o':
-        g_outpath = optarg;
-        break;
-      case 'h':
-      case '?':
-        ShowUsage(stdout, EXIT_SUCCESS);
-      default:
-        ShowUsage(stderr, EX_USAGE);
-    }
-  }
-  if (argc - optind) {
-    g_inpath = argv[optind];
-  }
-}
-
-/**
- * Converts official UNICODE ‘monospace widths’ (yup) to a bitset.
- *
- *      (╯°□°)╯︵ ̲┻̲━̲┻
- *      要依法治国是赞美那些谁是公义的和惩罚恶人。 - 韩非
- *
- * 172kB TXT → 32kB bits → 525 bytes lz4
- *
- * @note this tool may print binary to stdout
- * @see libc/kompressor/lz4decode.c
- * @see tool/viz/bing.c
- * @see tool/viz/fold.c
- * @see unicode.org/reports/tr11/#Definitions
- */
-int main(int argc, char *argv[]) {
-  GetOpts(argc, argv);
-  bitset = bitabuilder_new();
-  CHECK_NOTNULL(fin = fopen(g_inpath, "r"));
-  while ((getline(&line, &linecap, fin)) != -1) {
-    x = 0;
-    y = 0;
-    if (sscanf(line, "%x..%x;%c", &x, &y, &width) != 3) {
-      if (sscanf(line, "%x;%c", &x, &width) == 2) {
-        y = x;
-      } else {
-        continue;
-      }
-    }
-    CHECK_LE(x, y);
-    if (width == 'F' /* full-width */ || width == 'W' /* wide */) {
-      for (i = x; i <= y; ++i) {
-        CHECK(bitabuilder_setbit(bitset, i));
-      }
-    }
-  }
-  CHECK_NOTNULL(fout = fopen(g_outpath, "wb"));
-  CHECK(bitabuilder_fwrite(bitset, fout));
-  bitabuilder_free(&bitset);
-  return fclose(fin) | fclose(fout);
-}
diff --git a/tool/viz/printvideo.c b/tool/viz/printvideo.c
index 3d57e83ddd6..66223af67d0 100644
--- a/tool/viz/printvideo.c
+++ b/tool/viz/printvideo.c
@@ -315,6 +315,16 @@ static struct timespec GetGraceTime(void) {
   return timespec_sub(deadline_, timespec_real());
 }
 
+static char *strntoupper(char *s, size_t n) {
+  size_t i;
+  for (i = 0; s[i] && i < n; ++i) {
+    if ('a' <= s[i] && s[i] <= 'z') {
+      s[i] -= 'a' - 'A';
+    }
+  }
+  return s;
+}
+
 static int GetNamedVector(const struct NamedVector *choices, size_t n,
                           const char *s) {
   int i;