Compiling php 7.0.xx using libressl?

Question

linux

Alpine 3.5 comes with LibreSSL by default. Can you please tell me how can I compile php 7.0.xx using libressl instead of openssl?
PS I know that it is possible to install OpenSSL, but I also need curl-dev and postgresql-dev where LibreSSL is required, and co-installation is not possible. Alternatively, you can compile these packages with LibreSSL support, or just install alpine 3.4, but still)

Answer 1

For PHP =< 7.0.15 you can use the --with-openssl.
For PHP >= 7.0.17 use the --with-openssl=/usr.
Next, the configurator will deal with the choice of the SSL library:

OpenSSL support => enabled
OpenSSL Library Version => LibreSSL 2.5.4
OpenSSL Header Version => LibreSSL 2.5.4
Openssl default config => /etc/ssl/openssl.cnf

It's also useful to know that in PHP 7.0 there was no support for the OpenSSL 1.1+ library initially at the code level, but this version limitation appeared explicitly at the configuration level only in 7.0.16. In 7.0.17, such support appeared .
Alpine already had the latest version of the OpenSSL fork (LibreSSL) at that time, which was why there were problems with the 7.0.16 build.
An example of a complete PHP build on Alpine :)