libssh2: add package

[Peter: minor white space tweaks]
Signed-off-by: Ryan Barnett <rjbarnet@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Config.in

@@ -456,6 +456,7 @@ source "package/libmhash/Config.in"
 source "package/libnss/Config.in"
 source "package/libsecret/Config.in"
 source "package/libsha1/Config.in"
+source "package/libssh2/Config.in"
 source "package/nettle/Config.in"
 source "package/openssl/Config.in"
 source "package/polarssl/Config.in"

package/libssh2/Config.in

@@ -0,0 +1,10 @@
+config BR2_PACKAGE_LIBSSH2
+	bool "libssh2"
+	select BR2_PACKAGE_LIBGCRYPT if !BR2_PACKAGE_OPENSSL
+	help
+	  libssh2 is a client-side C library implementing the SSH2
+	  protocol as defined by Internet Drafts: SECSH-TRANS(22),
+	  SECSH-USERAUTH(25), SECSH-CONNECTION(23), SECSH-ARCH(20),
+	  SECSH-FILEXFER(06)*, SECSH-DHGEX(04), and SECSH-NUMBERS(10)
+
+	  http://www.libssh2.org/

package/libssh2/libssh2.mk

@@ -0,0 +1,32 @@
+################################################################################
+#
+# libssh2
+#
+################################################################################
+
+LIBSSH2_VERSION = 1.4.3
+LIBSSH2_SITE = http://www.libssh2.org/download/
+LIBSSH2_LICENSE = BSD
+LIBSSH2_LICENSE_FILES = COPYING
+LIBSSH2_INSTALL_STAGING = YES
+LIBSSH2_CONF_OPT = --disable-examples-build
+
+# libssh2 must use either libgcrypt or OpenSSL
+# Only select openssl if libgcrypt is not selected
+ifeq ($(BR2_PACKAGE_LIBGCRYPT),y)
+LIBSSH2_DEPENDENCIES += libgcrypt
+LIBSSH2_CONF_OPT += --with-libgcrypt --without-openssl
+else
+LIBSSH2_DEPENDENCIES += openssl
+LIBSSH2_CONF_OPT += --with-openssl --without-libgcrypt
+endif
+
+# Add zlib support if enabled
+ifeq ($(BR2_PACKAGE_ZLIB),y)
+LIBSSH2_DEPENDENCIES += zlib
+LIBSSH2_CONF_OPT += --with-libz
+else
+LIBSSH2_CONF_OPT += --without-libz
+endif
+
+$(eval $(autotools-package))