diff --git a/libjpegtwrp/makefile.mc6 b/libjpegtwrp/makefile.mc6
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+# Makefile for Independent JPEG Group's software
+
+# This makefile is for Microsoft C for MS-DOS, version 6.00A and up.
+# Use NMAKE, not Microsoft's brain-damaged MAKE.
+# Thanks to Alan Wright and Chris Turner of Olivetti Research Ltd.
+
+# Read installation instructions before saying "nmake" !!
+
+# You may need to adjust these compiler options:
+CFLAGS = -AM -Oecigt -Gs -W3
+# -AM medium memory model (or use -AS for small model, if you remove features)
+# -Oecigt -Gs  maximum safe optimisation (-Ol has bugs in MSC 6.00A)
+# -W3 warning level 3
+# You might also want to add -G2 if you have an 80286, etc.
+# Generally, we recommend defining any configuration symbols in jconfig.h,
+# NOT via -D switches here.
+
+# Jan-Herman Buining suggests the following switches for MS C 8.0 and a 486:
+# CFLAGS = /AM /f- /FPi87 /G3 /Gs /Gy /Ob1 /Oc /Oe /Og /Oi /Ol /On /Oo /Ot \
+#          /OV4 /W3
+# except for jquant1.c, which must be compiled with /Oo- to avoid a compiler
+# crash.
+
+# Ingar Steinsland suggests the following switches when building
+# a 16-bit Windows DLL:
+# CFLAGS = -ALw -Gsw -Zpe -W3 -O2 -Zi -Zd
+
+# Put here the object file name for the correct system-dependent memory
+# manager file.  For DOS, we recommend jmemdos.c and jmemdosa.asm.
+# (But not for Windows; see install.doc if you use this makefile for Windows.)
+SYSDEPMEM= jmemdos.obj jmemdosa.obj
+# SYSDEPMEMLIB must list the same files with "+" signs for the librarian.
+SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj
+
+# End of configurable options.
+
+
+# source files: JPEG library proper
+LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
+        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
+        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
+        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
+        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
+        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
+        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
+        jquant2.c jutils.c jmemmgr.c
+# memmgr back ends: compile only one of these into a working library
+SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
+# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
+APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
+        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
+        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
+SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
+# files included by source files
+INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
+        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
+# documentation, test, and support files
+DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
+        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
+        coderules.doc filelist.doc change.log
+MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
+        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
+        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
+        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
+        makvms.opt
+CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
+        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
+        jconfig.vms
+CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
+OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
+TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
+        testimgp.jpg
+DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
+        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
+# library object files common to compression and decompression
+COMOBJECTS= jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM)
+# compression library object files
+CLIBOBJECTS= jcapimin.obj jcapistd.obj jctrans.obj jcparam.obj jdatadst.obj \
+        jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj jcprepct.obj \
+        jccoefct.obj jccolor.obj jcsample.obj jchuff.obj jcphuff.obj \
+        jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj
+# decompression library object files
+DLIBOBJECTS= jdapimin.obj jdapistd.obj jdtrans.obj jdatasrc.obj \
+        jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdphuff.obj \
+        jdmainct.obj jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj \
+        jidctflt.obj jidctint.obj jidctred.obj jdsample.obj jdcolor.obj \
+        jquant1.obj jquant2.obj jdmerge.obj
+# These objectfiles are included in libjpeg.lib
+LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
+# object files for sample applications (excluding library files)
+COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \
+        rdswitch.obj cdjpeg.obj
+DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \
+        rdcolmap.obj cdjpeg.obj
+TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj
+
+# need linker response file because file list > 128 chars
+RFILE = libjpeg.ans
+
+
+all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
+
+libjpeg.lib: $(LIBOBJECTS) $(RFILE)
+	del libjpeg.lib
+	lib @$(RFILE)
+
+# linker response file for building libjpeg.lib
+$(RFILE) : makefile
+	del $(RFILE)
+	echo libjpeg.lib >$(RFILE)
+# silly want-to-create-it prompt:
+	echo y >>$(RFILE)
+	echo +jcapimin.obj +jcapistd.obj +jctrans.obj +jcparam.obj & >>$(RFILE)
+	echo +jdatadst.obj +jcinit.obj +jcmaster.obj +jcmarker.obj & >>$(RFILE)
+	echo +jcmainct.obj +jcprepct.obj +jccoefct.obj & >>$(RFILE)
+	echo +jccolor.obj +jcsample.obj +jchuff.obj +jcphuff.obj & >>$(RFILE)
+	echo +jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj & >>$(RFILE)
+	echo +jfdctint.obj +jdapimin.obj +jdapistd.obj & >>$(RFILE)
+	echo +jdtrans.obj +jdatasrc.obj +jdmaster.obj +jdinput.obj & >>$(RFILE)
+	echo +jdmarker.obj +jdhuff.obj +jdphuff.obj +jdmainct.obj & >>$(RFILE)
+	echo +jdcoefct.obj +jdpostct.obj +jddctmgr.obj & >>$(RFILE)
+	echo +jidctfst.obj +jidctflt.obj +jidctint.obj & >>$(RFILE)
+	echo +jidctred.obj +jdsample.obj +jdcolor.obj +jquant1.obj & >>$(RFILE)
+	echo +jquant2.obj +jdmerge.obj +jcomapi.obj +jutils.obj & >>$(RFILE)
+	echo +jerror.obj +jmemmgr.obj & >>$(RFILE)
+	echo $(SYSDEPMEMLIB) ; >>$(RFILE)
+
+cjpeg.exe: $(COBJECTS) libjpeg.lib
+	echo $(COBJECTS) >cjpeg.lst
+	link /STACK:4096 /EXEPACK @cjpeg.lst, cjpeg.exe, , libjpeg.lib, ;
+	del cjpeg.lst
+
+djpeg.exe: $(DOBJECTS) libjpeg.lib
+	echo $(DOBJECTS) >djpeg.lst
+	link /STACK:4096 /EXEPACK @djpeg.lst, djpeg.exe, , libjpeg.lib, ;
+	del djpeg.lst
+
+jpegtran.exe: $(TROBJECTS) libjpeg.lib
+	link /STACK:4096 /EXEPACK $(TROBJECTS), jpegtran.exe, , libjpeg.lib, ;
+
+rdjpgcom.exe: rdjpgcom.c
+	$(CC) -AS -O -W3 rdjpgcom.c
+
+# wrjpgcom needs large model so it can malloc a 64K chunk
+wrjpgcom.exe: wrjpgcom.c
+	$(CC) -AL -O -W3 wrjpgcom.c
+
+jconfig.h: jconfig.doc
+	echo You must prepare a system-dependent jconfig.h file.
+	echo Please read the installation directions in install.doc.
+	exit 1
+
+clean:
+	del *.obj
+	del libjpeg.lib
+	del cjpeg.exe
+	del djpeg.exe
+	del jpegtran.exe
+	del rdjpgcom.exe
+	del wrjpgcom.exe
+	del testout*.*
+
+test: cjpeg.exe djpeg.exe jpegtran.exe
+	del testout*.*
+	djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
+	djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
+	cjpeg -dct int -outfile testout.jpg  testimg.ppm
+	djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
+	cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
+	jpegtran -outfile testoutt.jpg testprog.jpg
+	fc /b testimg.ppm testout.ppm
+	fc /b testimg.bmp testout.bmp
+	fc /b testimg.jpg testout.jpg
+	fc /b testimg.ppm testoutp.ppm
+	fc /b testimgp.jpg testoutp.jpg
+	fc /b testorig.jpg testoutt.jpg
+
+
+jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
+jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcphuff.obj: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
+jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
+jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
+jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
+jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdphuff.obj: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
+jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
+jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jidctred.obj: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
+jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
+jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
+jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
+jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
+jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
+jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
+jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
+cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
+djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
+jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
+rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h
+wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h
+cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
+rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
+jmemdosa.obj : jmemdosa.asm
+	masm /mx $*;