libssh: upgrade to 0.7.3

Changelog:
version 0.7.3 (released 2016-01-23)
  * Fixed CVE-2016-0739
  * Fixed ssh-agent on big endian
  * Fixed some documentation issues

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/libssh/libssh_0.7.3.bb

@@ -0,0 +1,33 @@
+SUMMARY = "Multiplatform C library implementing the SSHv2 and SSHv1 protocol"
+HOMEPAGE = "http://www.libssh.org"
+SECTION = "libs"
+
+DEPENDS = "zlib openssl libgcrypt"
+
+LICENSE = "LGPLv2.1"
+LIC_FILES_CHKSUM = "file://COPYING;md5=388a4fb1dea8ceae0be78ba9b01fc139"
+
+SRC_URI = "git://git.libssh.org/projects/libssh.git;branch=v0-7"
+SRCREV = "cdf7690e038230623cbbf6b024ece62f41efa98d"
+S = "${WORKDIR}/git"
+
+EXTRA_OECMAKE = " \
+    -DWITH_GCRYPT=1 \
+    -DWITH_PCAP=1 \
+    -DWITH_SFTP=1 \
+    -DWITH_ZLIB=1 \
+    -DLIB_SUFFIX=${@d.getVar('baselib', True).replace('lib', '')} \
+    "
+
+PACKAGECONFIG ??=""
+PACKAGECONFIG[gssapi] = "-DWITH_GSSAPI=1, -DWITH_GSSAPI=0, krb5, "
+
+inherit cmake
+
+do_configure_prepend () {
+    # Disable building of examples
+    sed -i -e '/add_subdirectory(examples)/s/^/#DONOTWANT/' ${S}/CMakeLists.txt \
+        || bbfatal "Failed to disable examples"
+}
+
+FILES_${PN}-dev += "${libdir}/cmake"