Add hack to force mysqlnd extension to be loaded first to avoid missing symbol errors.

[Danack]

Addresses #9727

[Danack]

btw, does anyone know where a message can be added to ./configure output ?

The issue is that when mysqlnd and mysqli are loaded as shared modules, the order matters, which is not obvious to end-users.

[Danack]

Forgot to say, the behaviour can be seen by

./configure \
--without-iconv \
--without-pcre-jit \
--without-pear \
--without-sqlite3 \
--without-pdo-sqlite \
--enable-mysqlnd=shared \
--with-mysqli=shared,mysqlnd \
--with-pdo-mysql=shared,mysqlnd

And then run make test.

Without the patch the tests fail due to being unable to load the mysqli and pdo_mysql extensions.

[iluuu1994]

Your approach is fine too.

[morrisonlevi]

How many symbols are we talking about, by the way? I think having optional zend module dependencies with runtime resolution of symbols should fix this properly in core, but I haven't dug in to see.

[Danack]

How many symbols are we talking about, by the way?

No idea. Loading the .so file fails on the first missing symbol.

I think having optional zend module dependencies with runtime resolution of symbols should fix this properly in core

tbh, I have no idea what you mean.