Error when building PHP-CPP in mingw

[LorenceHernandez]

||=== Build: all in phpcpp (compiler: GNU GCC Compiler) ===|
F:\libs\php-cpp\zend\includes.h|40|fatal error: php.h: No such file or directory|
CMakeFiles\phpcpp.dir\build.make|62|recipe for target 'CMakeFiles/phpcpp.dir/zend/base.cpp.obj' failed|
CMakeFiles\Makefile2|108|recipe for target 'CMakeFiles/phpcpp.dir/all' failed|
F:\libs\php-cpp-binary\Makefile|82|recipe for target 'all' failed|
||=== Build failed: 4 error(s), 0 warning(s) (0 minute(s), 2 second(s)) ===|

This is the error I am getting.

Before that, I was getting different error which I fixed by modifying the CMakeLists.txt by enabling c++11.

Here is the new CMakeLists:
https://pastebin.com/UtVyVnJH

I only added line 12 and 14

I am using CodeBlocks 17.12 IDE
gcc 5.1.0
g++ 5.1.0