libssh: bump to version 0.7.2

Also, require threads support. cmake detects threads support correctly, but
libssh build system uses this information incorrectly.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libssh/Config.in

@@ -2,6 +2,7 @@ config BR2_PACKAGE_LIBSSH
 	bool "libssh"
 	depends on BR2_USE_MMU # fork()
 	depends on !BR2_STATIC_LIBS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	# Either OpenSSL or libgcrypt are mandatory
 	select BR2_PACKAGE_LIBGCRYPT if !BR2_PACKAGE_OPENSSL
 	help
@@ -12,6 +13,6 @@ config BR2_PACKAGE_LIBSSH
 
 	  http://www.libssh.org/
 
-comment "libssh needs a toolchain w/ dynamic library"
+comment "libssh needs a toolchain w/ dynamic library, threads"
 	depends on BR2_USE_MMU
-	depends on BR2_STATIC_LIBS
+	depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS

package/libssh/libssh.hash

@@ -1,4 +1,4 @@
 # from https://red.libssh.org/projects/libssh/files/
-md5	bffc9dc548c3bae3a3afc5ac1654b272	libssh-0.7.1.tar.xz
-# Locally calculated
-sha256	2fc7ccf96d3263cbd8ab520118cb94d9a2e11714c61e22b3f761fc5352fd046d  libssh-0.7.1.tar.xz
+md5	5d7d468937649a6dfc6186edfff083db	libssh-0.7.2.tar.xz
+# Locally calculated after checking signature on uncompressed libssh-0.7.2.tar
+sha256	a32c45b9674141cab4bde84ded7d53e931076c6b0f10b8fd627f3584faebae62  libssh-0.7.2.tar.xz

package/libssh/libssh.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-LIBSSH_VERSION = 0.7.1
+LIBSSH_VERSION = 0.7.2
 LIBSSH_SOURCE = libssh-$(LIBSSH_VERSION).tar.xz
-LIBSSH_SITE = https://red.libssh.org/attachments/download/154
+LIBSSH_SITE = https://red.libssh.org/attachments/download/177
 LIBSSH_LICENSE = LGPLv2.1
 LIBSSH_LICENSE_FILES = COPYING
 LIBSSH_INSTALL_STAGING = YES