On Tue, 5 May 2015, Rohit Nandan wrote:
I have build curl and c-ares version 7.33 , 7.35, 7.43 and 1.6, 1.10 respectively from source and tried both the curl command line and programming api where it fails to take --dns-ipv4-addr flag or CURLOPT_DNS_LOCAL_IP4 and perform asynchronous DNS requests. Default build fails with error " (4) A requested feature, protocol or option was not found built-in in this libcurl due to a build-time decision." while a build with ./configure --enable-ares gives no error on terminal but doesn't hits specified DNS server and error as "unable to resolve hostname" when using programming api.
That sounds like your newly built curl version is using a previously installed libcurl.
Verify that the installation is correct and make sure that 'curl -V' shows the correct libcurl version and c-ares details.
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