[OE-core] [PATCH v2] curl: allow build with c-ares library support.

[Yevhen Kyriukha]

Also added c-ares library recipe.

In libcurl there is an issue with DNS lookups that cause crash on some platforms:
http://curl.haxx.se/mail/lib-2008-09/0197.html
To avoid this issue libcurl has to be built with c-ares name resolver.

Signed-off-by: Yevhen Kyriukha <kirgene at gmail.com>
---
 meta/recipes-support/c-ares/c-ares_1.10.0.bb | 24 ++++++++++++++++++++++++
 meta/recipes-support/curl/curl_7.33.0.bb     |  2 ++
 2 files changed, 26 insertions(+)
 create mode 100644 meta/recipes-support/c-ares/c-ares_1.10.0.bb

diff --git a/meta/recipes-support/c-ares/c-ares_1.10.0.bb b/meta/recipes-support/c-ares/c-ares_1.10.0.bb
new file mode 100644
index 0000000..23b3d0e
--- /dev/null
+++ b/meta/recipes-support/c-ares/c-ares_1.10.0.bb
@@ -0,0 +1,24 @@
+# Copyright (c) 2012-2013 LG Electronics, Inc.
+
+DESCRIPTION = "c-ares is a C library that resolves names asynchronously."
+HOMEPAGE = "http://daniel.haxx.se/projects/c-ares/"
+SECTION = "libs"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://README;beginline=17;endline=18;md5=b320556568bc067d215a1e34c5b34a14"
+
+inherit autotools
+inherit pkgconfig
+
+SRC_URI = "http://c-ares.haxx.se/download/${BP}.tar.gz"
+SRC_URI[md5sum] = "1196067641411a75d3cbebe074fd36d8"
+SRC_URI[sha256sum] = "3d701674615d1158e56a59aaede7891f2dde3da0f46a6d3c684e0ae70f52d3db"
+
+EXTRA_OECONF = "--enable-shared"
+
+# install private headers to ares subdirectory
+do_install_append() {
+    install -d ${D}/${includedir}/ares
+    install -m 0644 ares*.h ${D}/${includedir}/ares/
+}
+
+FILES_${PN}-dev += "${includedir}/ares/*.h"
diff --git a/meta/recipes-support/curl/curl_7.33.0.bb b/meta/recipes-support/curl/curl_7.33.0.bb
index 8539fec..717c4f9 100644
--- a/meta/recipes-support/curl/curl_7.33.0.bb
+++ b/meta/recipes-support/curl/curl_7.33.0.bb
@@ -23,6 +23,8 @@ SRC_URI[sha256sum] = "0afde4cd949e2658eddc3cda675b19b165eea1af48ac5f3e1ec1607922
 
 inherit autotools pkgconfig binconfig
 
+PACKAGECONFIG[c-ares] = "--enable-ares,--disable-ares,c-ares"
+
 EXTRA_OECONF = "--with-zlib=${STAGING_LIBDIR}/../ \
                 --without-libssh2 \
                 --with-random=/dev/urandom \
-- 
1.8.1.2