diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3e4771b..e1d4171e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,12 @@
 # 3 june 2016
 cmake_minimum_required(VERSION 2.8.11)
 
+# TODOs
+# - silence entering/leaving messages?
+# - uname -s for more refined OS control
+# 	- Haiku for haiku
+# - debian DESTDIR? https://github.com/andlabs/libui/pull/10
+
 # the docs say we need to set this up prior to project()
 set(CMAKE_OSX_DEPLOYMENT_TARGET "10.8")
 
diff --git a/migrate_build/GNUmakefile b/migrate_build/GNUmakefile
deleted file mode 100644
index 631495a4..00000000
--- a/migrate_build/GNUmakefile
+++ /dev/null
@@ -1,77 +0,0 @@
-# 16 october 2015
-
-# TODO http://stackoverflow.com/questions/4122831/disable-make-builtin-rules-and-variables-from-inside-the-make-file
-
-# silence entering/leaving messages
-MAKEFLAGS += --no-print-directory
-
-OUTDIR = out
-OBJDIR = .obj
-
-# MAME does this so :/
-ifeq ($(OS),Windows_NT)
-	OS = windows
-endif
-
-ifndef OS
-	UNAME = $(shell uname -s)
-	ifeq ($(UNAME),Darwin)
-		OS = darwin
-	else ifeq ($(UNAME),Haiku)
-		OS = haiku
-	else
-		OS = unix
-	endif
-endif
-
-# default is to build with debug symbols
-ifndef RELEASE
-	RELEASE = 0
-endif
-
-# parameters
-export OS
-# TODO CC, CXX, RC, LD
-export CFLAGS
-export CXXFLAGS
-# TODO RCFLAGS
-export LDFLAGS
-export RELEASE
-export EXAMPLE
-export PREFIX
-
-# for Debian - see https://github.com/andlabs/libui/pull/10
-export DESTDIR
-
-# other important variables
-export OBJDIR
-export OUTDIR
-export STATIC
-
-ifneq (,$(STATIC))
-STATICLIB = STATICLIB=1
-endif
-
-libui:
-	@$(MAKE) -f build/GNUmakefile.libui inlibuibuild=1 $(STATICLIB)
-
-clean:
-	rm -rf $(OBJDIR) $(OUTDIR)
-
-test: libui
-	@$(MAKE) -f build/GNUmakefile.test inlibuibuild=1
-
-# TODO provide a build option for the queuemaintest
-
-example: libui
-	@$(MAKE) -f build/GNUmakefile.example inlibuibuild=1
-
-examples:
-	@$(MAKE) -f GNUmakefile example EXAMPLE=controlgallery 
-	@$(MAKE) -f GNUmakefile example EXAMPLE=histogram
-	@$(MAKE) -f GNUmakefile example EXAMPLE=cpp-multithread
-
-.PHONY: examples
-
-install:
-	@$(MAKE) -f build/GNUmakefile.libui install inlibuibuild=1
diff --git a/migrate_build/build/GNUbasemsvc.mk b/migrate_build/build/GNUbasemsvc.mk
deleted file mode 100644
index e69de29b..00000000
diff --git a/migrate_build/common/GNUfiles.mk b/migrate_build/common/GNUfiles.mk
deleted file mode 100644
index 465c76e8..00000000
--- a/migrate_build/common/GNUfiles.mk
+++ /dev/null
@@ -1,13 +0,0 @@
-# 16 october 2015
-
-CFILES += \
-	common/areaevents.c \
-	common/control.c \
-	common/debug.c \
-	common/matrix.c \
-	common/shouldquit.c \
-	common/userbugs.c
-
-HFILES += \
-	common/controlsigs.h \
-	common/uipriv.h
diff --git a/migrate_build/darwin/GNUosspecificlink.mk b/migrate_build/darwin/GNUosspecificlink.mk
deleted file mode 100644
index 0b9087e6..00000000
--- a/migrate_build/darwin/GNUosspecificlink.mk
+++ /dev/null
@@ -1,15 +0,0 @@
-# 28 may 2016
-
-$(OUT): $(OFILES) | $(OUTDIR)
-ifeq (,$(STATICLIB))
-	@$(reallinker) -o $(OUT) $(OFILES) $(LDFLAGS)
-ifeq ($(USESSONAME),1)
-	@ln -sf $(NAME)$(SUFFIX) $(OUTNOSONAME)
-endif
-else
-	nm -m $(OFILES) | sed -E -n 's/^[0-9a-f]* \([A-Z_]+,[a-z_]+\) external //p' > $(OBJDIR)/symbols
-	$(LD) -exported_symbols_list $(OBJDIR)/symbols -r $(OFILES) -o $(OUT:%.a=%.o)
-	$(AR) rcs $(OUT) $(OUT:%.a=%.o)
-endif
-	@echo ====== Linked $(OUT)
-
diff --git a/migrate_build/test/GNUfiles.mk b/migrate_build/test/GNUfiles.mk
deleted file mode 100644
index 94f1fa23..00000000
--- a/migrate_build/test/GNUfiles.mk
+++ /dev/null
@@ -1,31 +0,0 @@
-# 22 april 2015
-
-CFILES += \
-	test/drawtests.c \
-	test/main.c \
-	test/menus.c \
-	test/page1.c \
-	test/page2.c \
-	test/page3.c \
-	test/page4.c \
-	test/page5.c \
-	test/page6.c \
-	test/page7.c \
-	test/page7a.c \
-	test/page7b.c \
-	test/page7c.c \
-	test/page8.c \
-	test/page9.c \
-	test/page10.c \
-	test/page11.c \
-	test/page12.c \
-	test/page13.c \
-	test/spaced.c
-
-HFILES += \
-	test/test.h
-
-ifeq ($(OS),windows)
-RCFILES += \
-	test/resources.rc
-endif
diff --git a/migrate_build/unix/GNUosspecificlink.mk b/migrate_build/unix/GNUosspecificlink.mk
deleted file mode 100644
index 573b289f..00000000
--- a/migrate_build/unix/GNUosspecificlink.mk
+++ /dev/null
@@ -1,15 +0,0 @@
-# 28 may 2016
-
-$(OUT): $(OFILES) | $(OUTDIR)
-ifeq (,$(STATICLIB))
-	@$(reallinker) -o $(OUT) $(OFILES) $(LDFLAGS)
-ifeq ($(USESSONAME),1)
-	@ln -sf $(NAME)$(SUFFIX) $(OUTNOSONAME)
-endif
-else
-	$(LD) -r $(OFILES) -o $(OUT:%.a=%.o)
-	objcopy --localize-hidden $(OUT:%.a=%.o)
-	$(AR) rcs $(OUT) $(OUT:%.a=%.o)
-endif
-	@echo ====== Linked $(OUT)
-
diff --git a/migrate_build/windows/GNUfiles.mk b/migrate_build/windows/GNUfiles.mk
deleted file mode 100644
index e69de29b..00000000
diff --git a/migrate_build/windows/GNUinstall.mk b/migrate_build/windows/GNUinstall.mk
deleted file mode 100644
index 1d783c01..00000000
--- a/migrate_build/windows/GNUinstall.mk
+++ /dev/null
@@ -1,3 +0,0 @@
-install:
-	@echo "No install for windows !"
-	@exit 1
diff --git a/migrate_build/windows/GNUosspecific.mk b/migrate_build/windows/GNUosspecific.mk
deleted file mode 100644
index e69de29b..00000000