Error building tarantool-php with clang

[slacka]

When I try to build tarantool-php with clang I get:

php_tarantool.h:32:20: error: a parameter list without types is only allowed in a function definition

The full log can be found here:
http://clang.debian.net/logs/2016-08-30/tarantool-php_1.6-1_unstable_clang.log

[bigbes]

@slacka I'm not sure about it. How can I reproduce it?