[oe] [meta-oe][PATCH] libssh2: make crypto library selectable

[kai.kang at windriver.com]

From: Kai Kang <kai.kang at windriver.com>

Add PACKAGECONFs 'openssl' and 'gcrypt' to make crypto library
selectable. Only one of them could be set. If they are both set,
'gcrypt' is invalide.

Signed-off-by: Kai Kang <kai.kang at windriver.com>
---
 meta-oe/recipes-support/libssh2/libssh2_1.6.0.bb | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/meta-oe/recipes-support/libssh2/libssh2_1.6.0.bb b/meta-oe/recipes-support/libssh2/libssh2_1.6.0.bb
index 4f03b99..c43164e 100644
--- a/meta-oe/recipes-support/libssh2/libssh2_1.6.0.bb
+++ b/meta-oe/recipes-support/libssh2/libssh2_1.6.0.bb
@@ -2,7 +2,7 @@ SUMMARY = "A client-side C library implementing the SSH2 protocol"
 HOMEPAGE = "http://www.libssh2.org/"
 SECTION = "libs"
 
-DEPENDS = "zlib openssl"
+DEPENDS = "zlib"
 
 LICENSE = "BSD"
 LIC_FILES_CHKSUM = "file://COPYING;md5=c5cf34fc0acb44b082ef50ef5e4354ca"
@@ -13,8 +13,12 @@ SRC_URI[sha256sum] = "5a202943a34a1d82a1c31f74094f2453c207bf9936093867f41414968c
 
 inherit autotools pkgconfig
 
-EXTRA_OECONF += "--with-openssl \
+EXTRA_OECONF += "\
                  --with-libz \
-                 --with-libssl-prefix=${STAGING_LIBDIR} \
                  --with-libz-prefix=${STAGING_LIBDIR} \
                 "
+
+# only one of openssl and gcrypt could be set
+PACKAGECONFIG ??= "openssl"
+PACKAGECONFIG[openssl] = "--with-openssl --with-libssl-prefix=${STAGING_LIBDIR},--without-openssl,openssl"
+PACKAGECONFIG[gcrypt] = "--with-libgcrypt --with-libgcrypt-prefix=${STAGING_EXECPREFIXDIR},--without-libgcrypt,libgcrypt"
-- 
2.6.1