diff --git a/build-llvm-mos.sh b/build-llvm-mos.sh
index cd14747..3d6531e 100755
--- a/build-llvm-mos.sh
+++ b/build-llvm-mos.sh
@@ -27,8 +27,11 @@ fi
 cp -Rf llvm-mos-sdk-patches/* llvm-mos-sdk-source/.
 
 pushd llvm-mos-sdk-source
-	mkdir -p build
-	pushd build
+	if [[ -d .builddir ]]; then
+		rm -rf .builddir
+	fi
+	mkdir -p .builddir
+	pushd .builddir
 		cmake \
 			-G Ninja \
 			-DCMAKE_INSTALL_PREFIX=${INSTALL} \
diff --git a/examples/pgztest/build.sh b/examples/pgztest/build.sh
index aa9de1e..d4a79bc 100755
--- a/examples/pgztest/build.sh
+++ b/examples/pgztest/build.sh
@@ -9,11 +9,12 @@ START=0x2000
 
 echo "__f256_start = ${START};" > ${SETTINGS}
 mos-f256k-clang \
-	-I../f256 \
+	-I${F256}/include \
+	-I${F256}/f256lib \
 	-o pgztest \
 	-Os \
 	pgztest.c \
-	../f256/f256.c
+	${F256}/f256lib/f256.c
 mv -f pgztest pgztest.bin
 
 ${F256}/header/header \
diff --git a/examples/pgztest/api.h b/f256lib/api.h
similarity index 100%
rename from examples/pgztest/api.h
rename to f256lib/api.h
diff --git a/f256lib/f256.c b/f256lib/f256.c
new file mode 100644
index 0000000..2ab3758
--- /dev/null
+++ b/f256lib/f256.c
@@ -0,0 +1,95 @@
+#include "f256.h"
+
+
+char error;
+
+
+#define MAX_COL  80
+#define MAX_ROW  60
+
+
+static char  row  = 0;
+static char  col  = 0;
+static char *line = (char *)TEXT_MATRIX;
+
+
+void cls(void) {
+	int   i;
+	char *vram = (char *)TEXT_MATRIX;
+	unsigned char mmu;
+
+	mmu = PEEK(MMU_IO_CTRL);  // Get current MMU state.
+	POKE(MMU_IO_CTRL, 2);     // Swap I/O page 2 into bank 6.
+
+	for (i = 0; i < 80*60; i++) {
+		*vram++ = 32;
+	}
+
+	row = col = 0;
+	line = (char *)TEXT_MATRIX;
+
+	POKE(MMU_IO_CTRL, mmu);  // Restore MMU state.
+
+	POKE(CURSOR_SETTINGS, 9);  // Disable cursor flash.
+	POKE(CURSOR_CHARACTER, '_');  // Set cursor shape.
+
+	POKE(CURSOR_X_LOW, col);  // Set cursor X position.
+	POKE(CURSOR_X_HIGH, 0);
+
+	POKE(CURSOR_Y_LOW, row);  // Set cursor Y position.
+	POKE(CURSOR_Y_HIGH, 0);
+
+	POKE(0xd011, 0);
+}
+
+
+static void scroll() {
+	int i;
+	char *vram = (char *)TEXT_MATRIX;
+
+	for (i = 0; i < 80*59; i++) {
+		vram[i] = vram[i+80];
+	}
+	vram += i;
+	for (i = 0; i < 80; i++) {
+		*vram++ = 32;
+	}
+}
+
+
+void print(char *message) {
+	int x = 0;
+	unsigned char mmu;
+
+	mmu = PEEK(MMU_IO_CTRL);  // Get current MMU state.
+	POKE(MMU_IO_CTRL, 2);     // Swap I/O page 2 into bank 6.
+
+	while (message[x] != 0) {
+		switch (message[x]) {
+			default:
+				line[col] = message[x];
+				col++;
+				if (col != MAX_COL) {
+					break;
+				}
+				// Fall through.
+			case 10:
+			case 13:
+				col = 0;
+				row++;
+				if (row == MAX_ROW) {
+					scroll();
+					row--;
+					break;
+				}
+				line += 80;
+				break;
+		}
+		x++;
+	}
+
+	POKE(MMU_IO_CTRL, mmu);  // Restore MMU state.
+
+	POKE(CURSOR_X_LOW, col);
+	POKE(CURSOR_Y_LOW, row);
+}
diff --git a/f256lib/f256.h b/f256lib/f256.h
new file mode 100644
index 0000000..e0ee4aa
--- /dev/null
+++ b/f256lib/f256.h
@@ -0,0 +1,79 @@
+#ifndef F256_H
+#define F256_H
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include <stdlib.h>
+#include "stddclmr.h"
+
+#include "api.h"
+#include "f256_dma.h"
+#include "f256_intmath.h"
+#include "f256_irq.h"
+#include "f256jr.h"
+#include "f256_rtc.h"
+#include "f256_sprites.h"
+#include "f256_tiles.h"
+#include "f256_timers.h"
+#include "f256_via.h"
+#include "f256_xymath.h"
+
+/*
+#define MMU_MEM_CTRL  0x0000
+#define MMU_IO_CTRL   0x0001
+
+#define VICKY_MASTER_0   0xd000
+#define VICKY_MASTER_1   0xd001
+#define VICKY_GR_CLUT_0  0xd000  // I/O Page 1
+#define VICKY_GR_CLUT_1  0xd400  // I/O Page 1
+#define VICKY_GR_CLUT_2  0xd800  // I/O Page 1
+#define VICKY_GR_CLUT_3  0xdc00  // I/O Page 1
+*/
+
+#define TEXT_MATRIX          0xc000  // I/O Page 2
+#define TEXT_COLOR_MATRIX    0xc000  // I/O Page 3
+#define TEXT_LUT_FOREGROUND  0xd800  // I/O Page 0
+#define TEXT_LUT_BACKGROUND  0xd840  // I/O Page 0
+#define TEXT_FONT_0          0xc000  // I/O Page 1
+#define TEXT_FONT_1          0xc800  // I/O Page 1
+
+#define CURSOR_SETTINGS   0xd010
+#define CURSOR_CHARACTER  0xd012
+#define CURSOR_X_LOW      0xd014
+#define CURSOR_X_HIGH     0xd015
+#define CURSOR_Y_LOW      0xd016
+#define CURSOR_Y_HIGH     0xd017
+
+#define PEEK(addy)         ((unsigned char)*(volatile unsigned char *)(addy))
+#define POKE(addy, value)  (*(volatile unsigned char *)(addy) = (value))
+#define VECTOR(member)     (size_t)(&((struct call *)0xff00)->member)
+#define EVENT(member)      (size_t)(&((struct events *)0)->member)
+#define CALL(fn) \
+	asm("jsr %[addy] \n" \
+		"stz %[err] \n" \
+		"ror %[err]" \
+		: [err] "+m"(error) \
+		: [addy] "i"(VECTOR(fn)) \
+		: "a", "x", "y", "c", "v");
+
+
+
+extern struct event_t event;  // The event struct is allocated in crt0.
+extern char           error;
+
+
+void cls(void);
+void print(char *message);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif // F256_H
diff --git a/f256lib/stddclmr.h b/f256lib/stddclmr.h
new file mode 100644
index 0000000..8e6b3d9
--- /dev/null
+++ b/f256lib/stddclmr.h
@@ -0,0 +1,95 @@
+#ifndef STDDCLMR_H
+#define STDDCLMR_H
+
+/*
+Action figures sold separately. Add toner. All models over 18 years of age.
+All rights reserved. Allow four to six weeks for delivery. An equal
+opportunity employer. Any resemblance to actual persons, living or dead, is
+unintentional and purely coincidental. Apply only to affected area. Approved
+for veterans. As seen on TV. At participating locations only. Avoid contact
+with mucous membranes. Avoid contact with skin. Avoid extreme temperatures
+and store in a cool dry place. Batteries not included. Be sure each item is
+properly endorsed. Beware of dog. Booths for two or more. Breaking seal
+constitutes acceptance of agreement. Call toll free number before digging.
+Caveat emptor. Check here if tax deductible. Close cover before striking
+Colors may fade. Contains a substantial amount of non-tobacco ingredients.
+Contents may settle during shipment. Contestants have been briefed on some
+questions before the show. Copyright 1995 Joker's Wild. Disclaimer does
+not cover hurricane, lightning, tornado, tsunami, volcanic eruption,
+earthquake, flood, and other Acts of God, misuse, neglect, unauthorized
+repair, damage from improper installation, broken antenna or marred cabinet,
+incorrect line voltage, missing or altered serial numbers, sonic boom
+vibrations, electromagnetic radiation from nuclear blasts, customer
+adjustments that are not covered in the joke list, and incidents owing to
+airplane crash, ship sinking, motor vehicle accidents, leaky roof, broken
+glass, falling rocks, mud slides, forest fire, flying projectiles, or
+dropping the item. Do not bend, fold, mutilate, or spindle. Do not place
+near flammable or magnetic source. Do not puncture, incinerate, or store
+above 120 degrees Fahrenheit. Do not stamp. Use other side for additional
+listings. Do not use while operating a motor vehicle or heavy equipment. Do
+not write below this line. Documents are provided "as is" without any
+warranties expressed or implied. Don't quote me on anything. Don't quote me
+on that. Driver does not carry cash. Drop in any mailbox. Edited for
+television. Employees and their families are not eligible. Falling rock.
+First pull up, then pull down. Flames redirected to /dev/null. For a
+limited time only. For external use only. For off-road use only. For office
+use only. For recreational use only. Do not disturb. Freshest if eaten
+before date on carton. Hand wash only, tumble dry on low heat. If a rash,
+redness, irritation, or swelling develops, discontinue use. If condition
+persists, consult your physician. If defects are discovered, do not attempt
+to fix them yourself, but return to an authorized service center. If
+ingested, do not induce vomiting, if symptoms persist, consult a doctor.
+Keep away from open flames and avoid inhaling fumes. Keep away from
+sunlight, pets, and small children. Keep cool; process promptly. Limit
+one-per-family please. Limited time offer, call now to ensure prompt
+delivery. List at least two alternate dates. List each check separately by
+bank number. List was current at time of printing. Lost ticket pays maximum
+rate. May be too intense for some viewers. Must be 18 to enter. No Canadian
+coins. No alcohol, dogs or horses. No anchovies unless otherwise specified.
+No animals were harmed in the production of these documents. No money down.
+No other warranty expressed or implied. No passes accepted for this
+engagement. No postage necessary if mailed in the United States. No
+preservatives added. No purchase necessary. No salt, MSG, artificial color
+or flavor added. No shoes, no shirt, no service, no kidding. No solicitors.
+No substitutions allowed. No transfers issued until the bus comes to a
+complete stop. No user-serviceable parts inside. Not affiliated with the
+American Red Cross. Not liable for damages due to use or misuse. Not
+recommended for children. Not responsible for direct, indirect, incidental
+or consequential damages resulting from any defect, error or failure to
+perform. Not the Beatles. Objects in mirror may be closer than they appear.
+One size fits all. Many suitcases look alike. Other copyright laws for
+specific entries apply wherever noted. Other restrictions may apply. Package
+sold by weight, not volume. Parental advisory - explicit lyrics. Penalty for
+private use. Place stamp here. Please remain seated until the ride has come
+to a complete stop. Possible penalties for early withdrawal. Post office will
+not deliver without postage. Postage will be paid by addressee. Prerecorded
+for this time zone. Price does not include taxes. Processed at location
+stamped in code at top of carton. Quantities are limited while supplies last.
+Read at your own risk. Record additional transactions on back of previous
+stub. Replace with same type. Reproduction strictly prohibited. Restaurant
+package, not for resale. Return to sender, no forwarding order on file,
+unable to forward. Safety goggles may be required during use. Sanitized for
+your protection. Sealed for your protection, do not use if the safety seal is
+broken. See label for sequence. Shading within a garment may occur. Sign here
+without admitting guilt. Simulated picture. Slightly enlarged to show detail.
+Slightly higher west of the Rockies. Slippery when wet. Smoking these may be
+hazardous to your health. Some assembly required. Some equipment shown is
+optional. Some of the trademarks mentioned in this product appear for
+identification purposes only. Subject to FCC approval. Subject to change
+without notice. Substantial penalty for early withdrawal. Text may contain
+material some readers may find objectionable, parental guidance is advised.
+Text used in these documents is made from 100% recycled electrons and magnetic
+particles.  These documents do not reflect the thoughts or opinions of either
+myself, my company, my friends, or my rabbit. This is not an offer to sell
+securities. This offer is void where prohibited, taxed, or otherwise
+restricted. This product is meant for educational purposes only. Times
+approximate. Unix is a registered trademark of AT&T. Use only as directed. Use
+only in a well-ventilated are. User assumes full liabilities. Void where
+prohibited. We have sent the forms which seem right for you. You must be
+present to win. You need not be present to win. Your canceled check is your
+receipt. Your mileage may vary. I didn't do it. You can't prove anything.
+
+This supersedes all previous notices.
+*/
+
+#endif // STDDCLMR_H
diff --git a/llvm-mos-sdk-patches/mos-platform/f256k/CMakeLists.txt b/llvm-mos-sdk-patches/mos-platform/f256k/CMakeLists.txt
index 30d5495..5fed33b 100644
--- a/llvm-mos-sdk-patches/mos-platform/f256k/CMakeLists.txt
+++ b/llvm-mos-sdk-patches/mos-platform/f256k/CMakeLists.txt
@@ -4,6 +4,13 @@ if(NOT CMAKE_CROSSCOMPILING)
   return()
 endif()
 
+file(READ clang.cfg CONFIG)
+
+install(FILES
+  link.ld
+  settings.ld
+TYPE LIB)
+
 add_platform_library(f256k-crt0)
 merge_libraries(f256k-crt0
   common-crt0