diff --git a/Makefile b/Makefile
index 5937584..c4742a3 100644
--- a/Makefile
+++ b/Makefile
@@ -6,10 +6,10 @@
 # MKDIR_P, INSTALL, RM
 # prefix, BINARY_PATH, INCLUDE_PATH, LIBRARY_PATH
 
-CC ?= gcc
-AR ?= ar
-RANLIB ?= ranlib
-DLLTOOL ?= dlltool
+CC := x86_64-w64-mingw32-gcc
+AR := x86_64-w64-mingw32-ar
+RANLIB := x86_64-w64-mingw32-ranlib
+DLLTOOL := x86_64-w64-mingw32-dlltool
 
 MKDIR_P = mkdir -p
 INSTALL = install -c
@@ -19,10 +19,10 @@ RM = rm -f
 DEFAULT_LIBICONV_DLL ?= \"\"
 
 CFLAGS += -pedantic -Wall
-CFLAGS += -DUSE_LIBICONV_DLL
+#CFLAGS += -DUSE_LIBICONV_DLL
 CFLAGS += -DDEFAULT_LIBICONV_DLL=$(DEFAULT_LIBICONV_DLL)
 
-prefix ?= /usr/local
+prefix ?= /opt/win-iconv-64
 BINARY_PATH = $(prefix)/bin
 INCLUDE_PATH = $(prefix)/include
 LIBRARY_PATH = $(prefix)/lib
