diff --git a/apps/Makefile.k64f b/apps/Makefile.k64f
index 823e22f..44c4ceb 100755
--- a/apps/Makefile.k64f
+++ b/apps/Makefile.k64f
@@ -102,6 +102,8 @@ DHRY_DIR       = $(CURDIR)/../../common/Dhrystone
 COREMARK_DIR   = $(CURDIR)/../../common/CoreMark
 UMM_DIR        = $(CURDIR)/../../common/umm
 INCLUDE_DIR    = $(CURDIR)/../../include
+LIB_DIR        = $(CURDIR)/../../libraries/lib
+LIB_INCLUDE_DIR= $(CURDIR)/../../libraries/include
 APP_INCLUDE_DIR= $(CURDIR)/../include
 
 # Working directory to build object files.
@@ -135,7 +137,7 @@ OBJS           := $(foreach src,$(SOURCES), $(BUILD_DIR)/$(src))
 # CPPFLAGS = compiler options for C and C++
 #CPPFLAGS      = -Wall -g -Os -mthumb -ffunction-sections -fdata-sections -nostdlib -MMD $(OPTIONS) -DTEENSYDUINO=144 -DF_CPU=$(TEENSY_CORE_SPEED)
 CPPFLAGS      += -Wall -g -mthumb -nostdlib -MMD $(OPTIONS) -DTEENSYDUINO=144 -DF_CPU=$(TEENSY_CORE_SPEED) 
-CPPFLAGS      += -I. -I$(COMMON_DIR) -I$(FATFS_DIR) -I$(OSDIR) -I$(INCLUDE_DIR) -I$(APP_INCLUDE_DIR) -I$(COREPATH) -I$(COREMARK_DIR) -I$(DHRY_DIR) -I$(UMM_DIR)
+CPPFLAGS      += -I. -I$(COMMON_DIR) -I$(FATFS_DIR) -I$(OSDIR) -I$(INCLUDE_DIR) -I$(APP_INCLUDE_DIR) -I$(COREPATH) -I$(COREMARK_DIR) -I$(DHRY_DIR) -I$(UMM_DIR) # -I$(LIB_INCLUDE_DIR)
 CPPFLAGS      += -D__K64F__ -D__APP__ -DDEBUG -D__SD_CARD__ -DOS_BASEADDR=$(OS_BASEADDR) -DOS_APPADDR=$(OS_APPADDR)
 CPPFLAGS      += -mlong-calls # WARNING! This is needed as a bug in the compiler creates veneer wrappers which switch to ARM mode and not Thumb.
 ifeq (-nostdlib,$(findstring -nostdlib,$(LDFLAGS)))
@@ -177,11 +179,11 @@ CFLAGS        += -Os
 #LDFLAGS        = -Os -Wl,--gc-sections -mthumb -ffreestanding -Wl,--defsym=OS_BASEADDR=$(OS_BASEADDR) -Wl,--defsym=OS_APPADDR=$(OS_APPADDR)
 #LDFLAGS         = -nostdlib -nostartfiles -ffreestanding -Wl,--gc-sections -mthumb -Wl,--relax -Os -Wl,--defsym=OS_BASEADDR=$(OS_BASEADDR) -Wl,--defsym=OS_APPADDR=$(OS_APPADDR)
 #LDFLAGS         = -nostdlib -nostartfiles -ffreestanding -mthumb -Wl,--relax -Os -Wl,--defsym=OS_BASEADDR=$(OS_BASEADDR) -Wl,--defsym=OS_APPADDR=$(OS_APPADDR)
-LDFLAGS        +=  -nostartfiles -ffreestanding -mthumb -Wl,--relax -Os -Wl,--defsym=OS_BASEADDR=$(OS_BASEADDR) -Wl,--defsym=OS_APPADDR=$(OS_APPADDR)
+LDFLAGS        +=  -nostartfiles -ffreestanding -mthumb -Wl,--relax -Os -Wl,--defsym=OS_BASEADDR=$(OS_BASEADDR) -Wl,--defsym=OS_APPADDR=$(OS_APPADDR) -L$(LIB_DIR)
 #LDFLAGS         = -ffreestanding -Wl,--gc-sections -mthumb -Wl,--relax -Os -Wl,--defsym=OS_BASEADDR=$(OS_BASEADDR) -Wl,--defsym=OS_APPADDR=$(OS_APPADDR)
 
 # additional libraries to link
-LIBS           = -lm
+LIBS           += -lm
 
 # compiler options specific to teensy version
 ifeq ($(TEENSY), 30)
diff --git a/apps/ed/Makefile b/apps/ed/Makefile
index fea8899..318b5b0 100755
--- a/apps/ed/Makefile
+++ b/apps/ed/Makefile
@@ -48,11 +48,11 @@ ifeq ($(__K64F__),1)
   override STACKSIZE = 0x00000000
 
   # Modules making up Kilo.
-  APP_C_SRC    = $(APP_COMMON_DIR)/sysutils.c $(APP_COMMON_DIR)/ctypelocal.c
+  APP_C_SRC    = #$(APP_COMMON_DIR)/sysutils.c $(APP_COMMON_DIR)/ctypelocal.c
   CFLAGS       = 
   CPPFLAGS     = -D__HEAPADDR__=$(HEAPADDR) -D__HEAPSIZE__=$(HEAPSIZE)
   LDFLAGS      = -nostdlib
-  LIBS         =
+  LIBS         = -lumansi-k64f -lumstdio-k64f
 else
   # Modules making up Kilo.
   APP_C_SRC    = #$(APP_COMMON_DIR)/sysutils.c $(APP_COMMON_DIR)/ctypelocal.c
@@ -62,7 +62,6 @@ else
   LIBS         = -lumansi-zpu -limath-zpu
 endif
 
-
 # Filter out the standard HEAP address and size, replacing with the ones required for this application.
 # Useful for sub-makes
 FILTER1        = $(filter-out $(filter HEAPADDR=%,$(MAKEFLAGS)), $(MAKEFLAGS))
diff --git a/apps/ed/ed.c b/apps/ed/ed.c
index 16656b9..4216c10 100644
--- a/apps/ed/ed.c
+++ b/apps/ed/ed.c
@@ -54,21 +54,16 @@
   #include <stdarg.h>
   #include <usb_serial.h>
   #include "k64f_soc.h"
-  #define uint32_t __uint32_t
-  #define uint16_t __uint16_t
-  #define uint8_t  __uint8_t
-  #define int32_t  __int32_t
-  #define int16_t  __int16_t
-  #define int8_t   __int8_t
+  #include "../../libraries/include/ansi.h"
+  #include "../../libraries/include/ctype.h"
 #elif defined(__ZPU__)
   #include <stdint.h>
   #include "zpu_soc.h"
   #include <stdlib.h>
+  #include <ctype.h>
 #else
   #error "Target CPU not defined, use __ZPU__ or __K64F__"
 #endif
-//#include <ctypelocal.h>
-#include <ctype.h>
 #include "interrupts.h"
 #include "ff.h"            /* Declarations of FatFs API */
 #include "diskio.h"
diff --git a/apps/kilo/Makefile b/apps/kilo/Makefile
index faab974..9800997 100755
--- a/apps/kilo/Makefile
+++ b/apps/kilo/Makefile
@@ -46,13 +46,13 @@ ifeq ($(__K64F__),1)
   override HEAPSIZE  = 0x00033000
   override STACKADDR = 0x20028000
   override STACKSIZE = 0x00000000
-  
+
   # Modules making up Kilo.
-  APP_C_SRC    = $(APP_COMMON_DIR)/sysutils.c $(APP_COMMON_DIR)/ctypelocal.c
+  APP_C_SRC    = #$(APP_COMMON_DIR)/sysutils.c $(APP_COMMON_DIR)/ctypelocal.c
   CFLAGS       = 
   CPPFLAGS     = -D__HEAPADDR__=$(HEAPADDR) -D__HEAPSIZE__=$(HEAPSIZE)
   LDFLAGS      = -nostdlib
-  LIBS         =
+  LIBS         = -lumansi-k64f -lumstdio-k64f
 else
   # Modules making up Kilo.
   APP_C_SRC    = #$(APP_COMMON_DIR)/sysutils.c $(APP_COMMON_DIR)/ctypelocal.c
diff --git a/apps/kilo/kilo.c b/apps/kilo/kilo.c
index 4831bcf..4b9ad2c 100644
--- a/apps/kilo/kilo.c
+++ b/apps/kilo/kilo.c
@@ -51,21 +51,16 @@
   #include <unistd.h>
   #include <stdarg.h>
   #include "k64f_soc.h"
-  #define uint32_t __uint32_t
-  #define uint16_t __uint16_t
-  #define uint8_t  __uint8_t
-  #define int32_t  __int32_t
-  #define int16_t  __int16_t
-  #define int8_t   __int8_t
+  #include "../../libraries/include/ansi.h"
+  #include "../../libraries/include/ctype.h"
 #elif defined(__ZPU__)
   #include <stdint.h>
   #include "zpu_soc.h"
   #include <stdlib.h>
+  #include <ctype.h>
 #else
   #error "Target CPU not defined, use __ZPU__ or __K64F__"
 #endif
-//#include <ctypelocal.h>
-#include <ctype.h>
 #include "interrupts.h"
 #include "ff.h"            /* Declarations of FatFs API */
 #include "diskio.h"
diff --git a/apps/mbasic/Makefile b/apps/mbasic/Makefile
index 13a4f92..1daf126 100755
--- a/apps/mbasic/Makefile
+++ b/apps/mbasic/Makefile
@@ -47,14 +47,23 @@ override HEAPADDR  = 0x2000C000
 override HEAPSIZE  = 0x0001BC00
 override STACKADDR = 0x20027C00
 override STACKSIZE = 0x00000400
-endif
 
 # Modules making up Mbasic.
-APP_C_SRC      = basic.c ed.c $(APP_COMMON_DIR)/sbrk.c $(APP_COMMON_DIR)/sysutils.c $(COMMON_DIR)/readline.c
+APP_C_SRC      = basic.c ed.c $(APP_COMMON_DIR)/sbrk.c $(COMMON_DIR)/readline.c $(APP_COMMON_DIR)/sysutils.c
+UMM_C_SRC      =
+CFLAGS         = -Os
+CPPFLAGS       = -D__HEAPADDR__=$(HEAPADDR) -D__HEAPSIZE__=$(HEAPSIZE)
+LDFLAGS        =
+LIBS           = 
+else
+# Modules making up Mbasic.
+APP_C_SRC      = basic.c ed.c $(APP_COMMON_DIR)/sbrk.c $(COMMON_DIR)/readline.c $(APP_COMMON_DIR)/sysutils.c
 UMM_C_SRC      =
 CFLAGS         = -Os
 CPPFLAGS       = -D__HEAPADDR__=$(HEAPADDR) -D__HEAPSIZE__=$(HEAPSIZE)
 LDFLAGS        = 
+LIBS           =
+endif
 
 # Filter out the standard HEAP address and size, replacing with the ones required for this application.
 # Useful for sub-makes
diff --git a/apps/tbasic/Makefile b/apps/tbasic/Makefile
index 9cda5c1..cc93d8f 100755
--- a/apps/tbasic/Makefile
+++ b/apps/tbasic/Makefile
@@ -48,11 +48,11 @@ ifeq ($(__K64F__),1)
   override STACKSIZE = 0x00000000
 
   # Modules making up BASIC.
-  APP_C_SRC    = basic_main.c basic_editor.c basic_exectoks.c basic_expr.c basic_tokens.c basic_utils.c $(APP_COMMON_DIR)/sysutils.c
+  APP_C_SRC    = basic_main.c basic_editor.c basic_exectoks.c basic_expr.c basic_tokens.c basic_utils.c
   CFLAGS       = -Wno-write-strings -Wno-char-subscripts
   CPPFLAGS     = -D__HEAPADDR__=$(HEAPADDR) -D__HEAPSIZE__=$(HEAPSIZE)
   LDFLAGS      = -nostdlib
-  LIBS         =
+  LIBS         = -lumansi-k64f -lumstdio-k64f
 else
   override HEAPADDR  = 0x0000E200
   override HEAPSIZE  = 0x00000D00
@@ -60,7 +60,7 @@ else
   override STACKSIZE = 0x00000000
 
   # Modules making up BASIC.
-  APP_C_SRC    = basic_main.c basic_editor.c basic_exectoks.c basic_expr.c basic_tokens.c basic_utils.c #$(APP_COMMON_DIR)/sysutils.c
+  APP_C_SRC    = basic_main.c basic_editor.c basic_exectoks.c basic_expr.c basic_tokens.c basic_utils.c
   CFLAGS       = -Wno-write-strings -Wno-char-subscripts
   CPPFLAGS     = -D__HEAPADDR__=$(HEAPADDR) -D__HEAPSIZE__=$(HEAPSIZE)
   LDFLAGS      = -nostdlib
diff --git a/apps/tbasic/tbasic.c b/apps/tbasic/tbasic.c
index fb8e7d8..c586c93 100755
--- a/apps/tbasic/tbasic.c
+++ b/apps/tbasic/tbasic.c
@@ -45,12 +45,6 @@
   #include <stdlib.h>
   #include <string.h>
   #include "k64f_soc.h"
-  #define uint32_t __uint32_t
-  #define uint16_t __uint16_t
-  #define uint8_t  __uint8_t
-  #define int32_t  __int32_t
-  #define int16_t  __int16_t
-  #define int8_t   __int8_t
 #elif defined(__ZPU__)
   #include <stdint.h>
   #include "zpu_soc.h"
diff --git a/common/umm/umm_malloc.c b/common/umm/umm_malloc.c
index ee01b1b..efdd270 100644
--- a/common/umm/umm_malloc.c
+++ b/common/umm/umm_malloc.c
@@ -43,12 +43,12 @@
   #include <stdio.h>
   #include <string.h>
 #include <ctype.h>
-  #define uint32_t __uint32_t
-  #define uint16_t __uint16_t
-  #define uint8_t  __uint8_t
-  #define int32_t  __int32_t
-  #define int16_t  __int16_t
-  #define int8_t   __int8_t
+//  #define uint32_t __uint32_t
+//  #define uint16_t __uint16_t
+//  #define uint8_t  __uint8_t
+//  #define int32_t  __int32_t
+//  #define int16_t  __int16_t
+//  #define int8_t   __int8_t
 #elif defined(__ZPU__)
   #include <stdint.h>
   #include <stdlib.h>
diff --git a/libraries/Makefile b/libraries/Makefile
index 916bbfe..c29a975 100755
--- a/libraries/Makefile
+++ b/libraries/Makefile
@@ -105,6 +105,7 @@ IMATH_OBJS            = $(foreach src,$(IMATH_SRC), $(BUILD_DIR)/$(src))
 CFLAGS                = -I. -I$(UMLIBC_DIR)/include -I$(COMMON_DIR) -I$(INCLUDE_DIR) -I$(TEENSY35_DIR)
 ifeq ($(__ZPU__),)
   CFLAGS             +=  -D__K64F__
+  CFLAGS             +=  -mlong-calls -mthumb -MMD -g -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16
 else
   CFLAGS             +=  -D__ZPU__
 endif
diff --git a/libraries/lib/libimath2-k64f.a b/libraries/lib/libimath2-k64f.a
index 7b3d03e..dc6b55a 100644
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diff --git a/libraries/lib/libumansi-k64f.a b/libraries/lib/libumansi-k64f.a
index d74521f..809524f 100644
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diff --git a/libraries/lib/libummath-k64f.a b/libraries/lib/libummath-k64f.a
index f7705b6..6265b14 100644
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diff --git a/libraries/lib/libummathf-k64f.a b/libraries/lib/libummathf-k64f.a
index 0eee569..fee0d1a 100644
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diff --git a/libraries/lib/libumstdio-k64f.a b/libraries/lib/libumstdio-k64f.a
index bbee0b7..888dfbd 100644
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