I'm trying ton install php + maxmind-db-reader in a custom path:
--prefix=/home/geoip/usr

1. Install php-7.1.0 (success)
2. Install libmaxminddb-1.2.0 (success)
3. Install maxmind-db-reader-php-1.1.2 (error)
   /home/geoip/source/php/maxmind-db-reader-php-1.1.2/MaxMind-DB-Reader-php-master/ext/maxminddb.c:23:23: fatal error: maxminddb.h: No such file or directory #include <maxminddb.h>

Here are the step by step in a fresh debian 8.7.1 installation
http://pastebin.com/0W2QCehx

When i try to installlibmaxmind andmaxmind-db-reader-php without--prefix=/home/geoip/usr works ok. But I want everything related to this installation to be located in /home/geoip/usr.

I also tried:

./configure \--includedir=/home/geoip/usr/include \--with-maxminddb \--with-php-config=/home/geoip/usr/bin/php-config

Same error. My guess I'm not setting path correctly or ./configure is not using--prefix or--includedir correctly.