Index: igbinary-2.0.8/src/php7/igbinary.c =================================================================== --- igbinary-2.0.8/src/php7/igbinary.c +++ igbinary-2.0.8/src/php7/igbinary.c 2018-10-21 01:28:22.312376824 +0200 @@ -21,6 +21,8 @@ #include "ext/standard/info.h" #include "ext/standard/php_var.h" +#undef COMPILE_DL_SESSION + #if HAVE_PHP_SESSION && !defined(COMPILE_DL_SESSION) # include "ext/session/php_session.h" #endif