generate a libssh2_config.h in the example dir

buildconf copies the template to example/ and configure makes sure
to generate a proper file from it and the direct_tcpip.c example
is the first one to use it - to make sure it builds fine on more
paltforms

buildconf

@@ -22,6 +22,6 @@ ${AUTOHEADER:-autoheader}
 # copy the private libssh2_config.h.in to the examples dir so that
 # it can be included without pointing the include path to the private
 # source dir
-cp src/libssh2_config.h.in example/config.h.in
+cp src/libssh2_config.h.in example/libssh2_config.h.in
 ${AUTOCONF:-autoconf}
 ${AUTOMAKE:-automake} --add-missing --copy

configure.ac

@@ -2,7 +2,7 @@
 AC_INIT(libssh2, [-], libssh2-devel@lists.sourceforge.net)
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([src])
-AC_CONFIG_HEADER([src/libssh2_config.h])
+AM_CONFIG_HEADER([src/libssh2_config.h example/libssh2_config.h])
 AM_MAINTAINER_MODE
 
 dnl SED is needed by some of the tools

example/direct_tcpip.c

@@ -1,5 +1,9 @@
 #include <libssh2.h>
 
+#ifdef HAVE_CONFIG_H
+#include "libssh2_config.h"
+#endif
+
 #include <sys/types.h>
 
 #ifdef HAVE_WINSOCK2_H