openssl - could not find the C header files

Brandon Allbery allbery.b at
Sat Oct 17 11:44:18 PDT 2015

On Sat, Oct 17, 2015 at 2:24 PM, Frank Röhm <francwalter at> wrote:

> checking for openssl directory... configure: WARNING: We found the
> libraries for openssl, but we could not find the C header files.  You may
> need to install a devel package.
> configure: error: Missing headers; unable to proceed.

You probably got the system OpenSSL the last time you built it. 10.11
doesn't have OpenSSL any more (I think it has LibreSSL? which is not 100%
compatible, apparently).

To use the MacPorts version, you likely need "./configure
--with-openssl=/opt/local" or similar.

Of course, there's also the MacPorts port of tor, and a port of the Vidalia

    sudo port install vidalia        # will install tor as a dependency

brandon s allbery kf8nh                               sine nomine associates
allbery.b at                                  ballbery at
unix, openafs, kerberos, infrastructure, xmonad
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