build: Switch to autotools

include/Makefile.am

@@ -0,0 +1,31 @@
+## Process this file with automake to produce Makefile.in
+
+nobase_include_HEADERS = \
+	bsd/sys/bitstring.h \
+	bsd/sys/cdefs.h \
+	bsd/sys/endian.h \
+	bsd/sys/poll.h \
+	bsd/sys/queue.h \
+	bsd/sys/tree.h \
+	bsd/netinet/ip_icmp.h \
+	bsd/bsd.h \
+	bsd/cdefs.h \
+	bsd/err.h \
+	bsd/getopt.h \
+	bsd/inet.h \
+	bsd/ip_icmp.h \
+	bsd/libutil.h \
+	bsd/md5.h \
+	bsd/nlist.h \
+	bsd/queue.h \
+	bsd/random.h \
+	bsd/readpassphrase.h \
+	bsd/stdio.h \
+	bsd/stdlib.h \
+	bsd/string.h \
+	bsd/unistd.h \
+	bsd/vis.h \
+	libutil.h \
+	nlist.h \
+	vis.h \
+	$(nil)