diff --git a/eg/light/makefile b/eg/light/makefile
index 8c1a96a..4d1d914 100644
--- a/eg/light/makefile
+++ b/eg/light/makefile
@@ -11,27 +11,20 @@ BIN = light
 # -- creating MAP file
 MAP = 0
 
-ifeq ($(OS),Windows_NT)
 # -- platform (core)
-# ARM Cortex-M3: __MDKARM__
-# DOS: __DJGPP__
-# WIN32: __MINGW__
-# UNIX: __UNIX__
+ifeq ($(OS),Windows_NT)
+# WIN32
 PLATFORM = __MINGW__
 else
+# UNIX
 PLATFORM = __UNIX__
 endif
 
 TOP = ../..
 
 # -- compilers
-ifeq ($(PLATFORM),__DJGPP__)
-CC = $(DJGPP_HOME)/bin/gcc.exe
-CXX = $(DJGPP_HOME)/bin/gxx.exe
-else
 CC = gcc
 CXX = g++
-endif
 
 # -- on EV3 BRICK
 ifeq ($(PLATFORM),__UNIX__)
@@ -57,18 +50,12 @@ PP = @echo makefile: warning: preprocessing step is skipped,
 endif
 
 # -- output subdirectory
-ifeq ($(PLATFORM),__DJGPP__)
-D_PLATFORM = djgpp
-else
-
 ifeq ($(PLATFORM),__MINGW__)
 D_PLATFORM = mingw
 else
 D_PLATFORM =
 endif
 
-endif
-
 # -- yupp import directories
 D_YU = $(TOP)/source/ev3
 
@@ -148,12 +135,6 @@ CFLAGS = $(addprefix -I, $(D_H)) -O2 -W -Wall -Wno-comment -std=gnu99
 CXXFLAGS = $(addprefix -I, $(D_H)) -O2 -ffast-math -funroll-loops -fno-exceptions -fomit-frame-pointer -g -W -Wall -Wno-comment
 ASMFLAGS = -Wall
 
-# -- platform specific options
-ifeq ($(PLATFORM),__DJGPP__)
-BUFSIZE = 16k
-MINSTACK = 1024k
-endif
-
 # ---------------------------------
 #   files lists
 # ---------------------------------
@@ -196,14 +177,8 @@ endef
 endif
 
 # -- optional final tools
-ifeq ($(PLATFORM),__DJGPP__)
 define final
-	stubedit $1 minstack=$(MINSTACK) bufsize=$(BUFSIZE)
 endef
-else
-define final
-endef
-endif
 
 # -- removal list
 R = $(F_BIN) $(O)
diff --git a/eg/sensor/makefile b/eg/sensor/makefile
index ae29e3c..d608351 100644
--- a/eg/sensor/makefile
+++ b/eg/sensor/makefile
@@ -11,27 +11,20 @@ BIN = sensor
 # -- creating MAP file
 MAP = 0
 
-ifeq ($(OS),Windows_NT)
 # -- platform (core)
-# ARM Cortex-M3: __MDKARM__
-# DOS: __DJGPP__
-# WIN32: __MINGW__
-# UNIX: __UNIX__
+ifeq ($(OS),Windows_NT)
+# WIN32
 PLATFORM = __MINGW__
 else
+# UNIX
 PLATFORM = __UNIX__
 endif
 
 TOP = ../..
 
 # -- compilers
-ifeq ($(PLATFORM),__DJGPP__)
-CC = $(DJGPP_HOME)/bin/gcc.exe
-CXX = $(DJGPP_HOME)/bin/gxx.exe
-else
 CC = gcc
 CXX = g++
-endif
 
 # -- on EV3 BRICK
 ifeq ($(PLATFORM),__UNIX__)
@@ -57,18 +50,12 @@ PP = @echo makefile: warning: preprocessing step is skipped,
 endif
 
 # -- output subdirectory
-ifeq ($(PLATFORM),__DJGPP__)
-D_PLATFORM = djgpp
-else
-
 ifeq ($(PLATFORM),__MINGW__)
 D_PLATFORM = mingw
 else
 D_PLATFORM =
 endif
 
-endif
-
 # -- yupp import directories
 D_YU = $(TOP)/source/ev3
 
@@ -148,12 +135,6 @@ CFLAGS = $(addprefix -I, $(D_H)) -O2 -W -Wall -Wno-comment -std=gnu99
 CXXFLAGS = $(addprefix -I, $(D_H)) -O2 -ffast-math -funroll-loops -fno-exceptions -fomit-frame-pointer -g -W -Wall -Wno-comment
 ASMFLAGS = -Wall
 
-# -- platform specific options
-ifeq ($(PLATFORM),__DJGPP__)
-BUFSIZE = 16k
-MINSTACK = 1024k
-endif
-
 # ---------------------------------
 #   files lists
 # ---------------------------------
@@ -196,14 +177,8 @@ endef
 endif
 
 # -- optional final tools
-ifeq ($(PLATFORM),__DJGPP__)
 define final
-	stubedit $1 minstack=$(MINSTACK) bufsize=$(BUFSIZE)
 endef
-else
-define final
-endef
-endif
 
 # -- removal list
 R = $(F_BIN) $(O)
diff --git a/eg/tacho/makefile b/eg/tacho/makefile
index 371b40c..0264b10 100644
--- a/eg/tacho/makefile
+++ b/eg/tacho/makefile
@@ -11,27 +11,20 @@ BIN = tacho
 # -- creating MAP file
 MAP = 0
 
-ifeq ($(OS),Windows_NT)
 # -- platform (core)
-# ARM Cortex-M3: __MDKARM__
-# DOS: __DJGPP__
-# WIN32: __MINGW__
-# UNIX: __UNIX__
+ifeq ($(OS),Windows_NT)
+# WIN32
 PLATFORM = __MINGW__
 else
+# UNIX
 PLATFORM = __UNIX__
 endif
 
 TOP = ../..
 
 # -- compilers
-ifeq ($(PLATFORM),__DJGPP__)
-CC = $(DJGPP_HOME)/bin/gcc.exe
-CXX = $(DJGPP_HOME)/bin/gxx.exe
-else
 CC = gcc
 CXX = g++
-endif
 
 # -- on EV3 BRICK
 ifeq ($(PLATFORM),__UNIX__)
@@ -57,18 +50,12 @@ PP = @echo makefile: warning: preprocessing step is skipped,
 endif
 
 # -- output subdirectory
-ifeq ($(PLATFORM),__DJGPP__)
-D_PLATFORM = djgpp
-else
-
 ifeq ($(PLATFORM),__MINGW__)
 D_PLATFORM = mingw
 else
 D_PLATFORM =
 endif
 
-endif
-
 # -- yupp import directories
 D_YU = $(TOP)/source/ev3
 
@@ -148,12 +135,6 @@ CFLAGS = $(addprefix -I, $(D_H)) -O2 -W -Wall -Wno-comment -std=gnu99
 CXXFLAGS = $(addprefix -I, $(D_H)) -O2 -ffast-math -funroll-loops -fno-exceptions -fomit-frame-pointer -g -W -Wall -Wno-comment
 ASMFLAGS = -Wall
 
-# -- platform specific options
-ifeq ($(PLATFORM),__DJGPP__)
-BUFSIZE = 16k
-MINSTACK = 1024k
-endif
-
 # ---------------------------------
 #   files lists
 # ---------------------------------
@@ -166,6 +147,7 @@ S_YUCXX = $(wildcard $(addsuffix /*$(E_YUCXX), $(D_CXX)))
 G_CXX = $(addsuffix $(E_CXX), $(basename $(S_YUCXX)))
 G_C = $(addsuffix $(E_C), $(basename $(S_YUC)))
 G_H = $(addsuffix $(E_H), $(basename $(S_YUH)))
+
 S_C = $(sort $(wildcard $(addsuffix /*$(E_C), $(D_C))) $(G_C))
 S_CXX = $(sort $(wildcard $(addsuffix /*$(E_CXX), $(D_CXX))) $(G_CXX))
 S_ASM = $(wildcard $(addsuffix /*$(E_ASM), $(D_ASM)))
@@ -195,14 +177,8 @@ endef
 endif
 
 # -- optional final tools
-ifeq ($(PLATFORM),__DJGPP__)
 define final
-	stubedit $1 minstack=$(MINSTACK) bufsize=$(BUFSIZE)
 endef
-else
-define final
-endef
-endif
 
 # -- removal list
 R = $(F_BIN) $(O)
diff --git a/lib/mingw/libev3dev-c.a b/lib/mingw/libev3dev-c.a
index 8cc17a1..d9df0a8 100644
Binary files a/lib/mingw/libev3dev-c.a and b/lib/mingw/libev3dev-c.a differ
diff --git a/lib/mingw/libev3dev.a b/lib/mingw/libev3dev.a
deleted file mode 100644
index 1888073..0000000
Binary files a/lib/mingw/libev3dev.a and /dev/null differ
diff --git a/source/ev3/makefile b/source/ev3/makefile
index 8df5c68..90e31b2 100644
--- a/source/ev3/makefile
+++ b/source/ev3/makefile
@@ -8,29 +8,21 @@
 # -- binary name (without prefix and extension)
 BIN = ev3dev-c
 
-ifeq ($(OS),Windows_NT)
 # -- platform (core)
-# ARM Cortex-M3: __MDKARM__
-# DOS: __DJGPP__
-# WIN32: __MINGW__
-# UNIX: __UNIX__
+ifeq ($(OS),Windows_NT)
+# WIN32
 PLATFORM = __MINGW__
 else
+# UNIX
 PLATFORM = __UNIX__
 endif
 
 TOP = ../..
 
 # -- compilers
-ifeq ($(PLATFORM),__DJGPP__)
-CC = $(DJGPP_HOME)/bin/gcc.exe
-CXX = $(DJGPP_HOME)/bin/gxx.exe
-AR = $(DJGPP_HOME)/bin/ar.exe
-else
 CC = gcc
 CXX = g++
 AR = ar
-endif
 
 # -- on EV3 BRICK
 ifeq ($(PLATFORM),__UNIX__)
@@ -56,31 +48,19 @@ PP = @echo makefile: warning: preprocessing step is skipped,
 endif
 
 # -- output subdirectory
-ifeq ($(PLATFORM),__DJGPP__)
-D_PLATFORM = djgpp
-else
-
 ifeq ($(PLATFORM),__MINGW__)
 D_PLATFORM = mingw
 else
 D_PLATFORM =
 endif
 
-endif
-
 # -- install directory
-ifeq ($(PLATFORM),__DJGPP__)
-D_INSTALL = $(DJGPP_HOME)
-else
-
 ifeq ($(PLATFORM),__MINGW__)
 D_INSTALL = $(MINGW_HOME)
 else
 D_INSTALL = /usr/local
 endif
 
-endif
-
 # -- yupp import directories
 D_YU = $(TOP)/source/ev3
 
@@ -152,12 +132,6 @@ endif
 
 ASMFLAGS = -Wall
 
-# -- platform specific options
-ifeq ($(PLATFORM),__DJGPP__)
-BUFSIZE = 16k
-MINSTACK = 1024k
-endif
-
 # ---------------------------------
 #   files lists
 # ---------------------------------
@@ -200,14 +174,8 @@ endef
 endif
 
 # -- optional final tools
-ifeq ($(PLATFORM),__DJGPP__)
 define final
-	stubedit $1 minstack=$(MINSTACK) bufsize=$(BUFSIZE)
 endef
-else
-define final
-endef
-endif
 
 # -- removal list
 R = $(F_BIN) $(O)