stub in initial libtls standalone tree

libtls-standalone/include/Makefile.am

@@ -0,0 +1,27 @@
+#noinst_HEADERS = err.h
+#noinst_HEADERS += netdb.h
+#noinst_HEADERS += poll.h
+#noinst_HEADERS += pqueue.h
+#noinst_HEADERS += stdio.h
+#noinst_HEADERS += stdlib.h
+#noinst_HEADERS += string.h
+#noinst_HEADERS += syslog.h
+#noinst_HEADERS += unistd.h
+#noinst_HEADERS += win32netcompat.h
+#
+#noinst_HEADERS += arpa/inet.h
+#
+#noinst_HEADERS += machine/endian.h
+#
+#noinst_HEADERS += netinet/in.h
+#noinst_HEADERS += netinet/tcp.h
+#
+#noinst_HEADERS += sys/ioctl.h
+#noinst_HEADERS += sys/mman.h
+#noinst_HEADERS += sys/select.h
+#noinst_HEADERS += sys/socket.h
+#noinst_HEADERS += sys/times.h
+#noinst_HEADERS += sys/types.h
+#noinst_HEADERS += sys/uio.h
+
+include_HEADERS = tls.h

libtls-standalone/include/string.h

@@ -0,0 +1,28 @@
+/*
+ * Public domain
+ * string.h compatibility shim
+ */
+
+#include_next <string.h>
+
+#ifndef LIBCRYPTOCOMPAT_STRING_H
+#define LIBCRYPTOCOMPAT_STRING_H
+
+#include <sys/types.h>
+
+#if defined(__sun) || defined(__hpux)
+/* Some functions historically defined in string.h were placed in strings.h by
+ * SUS. Use the same hack as OS X and FreeBSD use to work around on Solaris and HPUX.
+ */
+#include <strings.h>
+#endif
+
+#ifndef HAVE_EXPLICIT_BZERO
+void explicit_bzero(void *, size_t);
+#endif
+
+#ifndef HAVE_STRSEP
+char *strsep(char **stringp, const char *delim);
+#endif
+
+#endif