compiling on an older system (Centos 6)

[Darren Tucker]

On Tue, 11 Mar 2025 at 03:13, Stan Dickerson <stan at energycontrolsystems.com>
wrote:

> Centos 6 - 2.6.32-573.el6.x86_64 #1 SMP Thu Jul 23 15:44:03 UTC 2015
> x86_64 x86_64 x86_64 GNU/Linux
>
> I'm trying to compile openssh-9.9p2. I compiled openssl-3.0.16 in
> /usr/local.
>
> ./configure  --prefix=/usr --with-pam --with-selinux
> --with-privsep-path=/var/lib/sshd/ --sysconfdir=/etc/ssh
> --with-ssl-dir=/usr/local
>
> I'm getting:
>
> |checking for openssl... /usr/local/bin/openssl checking for
> openssl/opensslv.h... yes checking OpenSSL header version... 30000100
> (OpenSSL 3.0.16 11 Feb 2025) checking for OpenSSL_version... no checking
> for OpenSSL_version_num... no checking OpenSSL library version... not
> found configure: error: OpenSSL library not found.
>

The actual reason will be in config.log (you'll need to scroll a fair way
back) but it's probably that /usr/local/lib is not in the runtime linker's
path.  One way to fix that is to tell the linker to add it with:

./configure --with-ssl-dir=/usr/local --with-rpath=-Wl,-rpath,

(note that the trailing comma is significant)

-- 
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.