openssh: add linux-pam support

When PAM is enabled, openssh makes its own static versions of pthreads

functions.  But when built with a uclibc toolchain, pthreads.h gets

indirectly included.  The clashing exported and static definitions of

the pthreads functions then cause a compile error.  This patch fixes

the problem by changing the static pthread function names with macros

when the static functions are defined.

Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>

diff -urN openssh-6.1p1.orig/auth-pam.c openssh-6.1p1/auth-pam.c

--- openssh-6.1p1.orig/auth-pam.c	2009-07-12 08:07:21.000000000 -0400

+++ openssh-6.1p1/auth-pam.c	2012-09-15 19:49:47.677288199 -0400

@@ -166,6 +166,7 @@

 		sigdie("PAM: authentication thread exited uncleanly");

 }

+#define pthread_exit pthread_exit_AVOID_UCLIBC_PTHREAD_CLASH

 /* ARGSUSED */

 static void

 pthread_exit(void *value)

@@ -173,6 +174,7 @@

 	_exit(0);

 }

+#define pthread_create pthread_create_AVOID_UCLIBC_PTHREAD_CLASH

 /* ARGSUSED */

 static int

 pthread_create(sp_pthread_t *thread, const void *attr,

@@ -200,6 +202,7 @@

 	}

 }

+#define pthread_cancel pthread_cancel_AVOID_UCLIBC_PTHREAD_CLASH

 static int

 pthread_cancel(sp_pthread_t thread)

 {

@@ -207,6 +210,7 @@

 	return (kill(thread, SIGTERM));

 }

+#define pthread_join pthread_join_AVOID_UCLIBC_PTHREAD_CLASH

 /* ARGSUSED */

 static int

 pthread_join(sp_pthread_t thread, void **value)

OPENSSH_DEPENDENCIES = zlib openssl

ifeq ($(BR2_PACKAGE_LINUX_PAM),y)

OPENSSH_DEPENDENCIES += linux-pam

OPENSSH_CONF_OPT += --with-pam

endif

define OPENSSH_INSTALL_INITSCRIPT

	$(INSTALL) -D -m 755 package/openssh/S50sshd $(TARGET_DIR)/etc/init.d/S50sshd

endef