Add unicode makefile references and support

lib/libunicode/Makefile.am

@@ -0,0 +1,13 @@
+include $(top_srcdir)/config/Rules.am
+
+DEFAULT_INCLUDES += \
+	-I${top_srcdir}/module/unicode/include \
+	-I${top_srcdir}/lib/libspl/include
+
+lib_LTLIBRARIES = libunicode.la
+
+libunicode_la_SOURCES = \
+	${top_srcdir}/module/unicode/u8_textprep.c \
+	${top_srcdir}/module/unicode/uconv.c \
+	${top_srcdir}/module/unicode/include/sys/u8_textprep.h \
+	${top_srcdir}/module/unicode/include/sys/u8_textprep_data.h

module/unicode/Makefile.in

@@ -0,0 +1,12 @@
+subdir-m += include
+DISTFILES = u8_textprep.c uconv.c
+
+MODULE := zunicode
+
+EXTRA_CFLAGS  = @KERNELCPPFLAGS@
+EXTRA_CFLAGS += -I@MODDIR@/unicode/include
+
+obj-m := ${MODULE}.o
+
+${MODULE}-objs += u8_textprep.o
+${MODULE}-objs += uconv.o

module/unicode/include/Makefile.in

@@ -0,0 +1 @@
+subdir-m += sys

module/unicode/include/sys/Makefile.in

@@ -0,0 +1 @@
+DISTFILES = u8_textprep.h u8_textprep_data.h