compiler/wasm

TypePHP WASI SDK layout

TypePHP application builds never compile PHP, PHPX, GMP, MPFR, or mpdecimal. The integrated PHPX installer places their prebuilt wasm32-wasip2 SDK at:

<phpx>/wasm/wasm32-wasip2/
├── include/
│   ├── php/                 PHP installed and generated headers
│   ├── phpx/                PHPX public and TypePHP runtime headers
│   ├── gmp.h
│   ├── gmpxx.h
│   ├── mpfr.h
│   ├── mpdecimal.h
│   └── decimal.hh
├── lib/
│   ├── libphp.a
│   ├── libphpx.a
│   ├── libgmp.a
│   ├── libgmpxx.a
│   ├── libmpfr.a
│   ├── libmpdec.a
│   └── libmpdec++.a
└── .typephp-wasi-sdk-abi

The ABI file must contain exactly:

typephp-wasip2-sdk-abi-v2

TypePHP locates PHPX through the existing PHPX_HOME setting, Composer's swoole/phpx installation metadata, or vendor/swoole/phpx. TypePHP developers who independently clone and build the matching php-8.5.9-wasm and PHPX repositories install the complete SDK below that PHPX checkout. There is no additional WASI SDK environment variable and no set of per-library search paths: all headers, archives, and the ABI marker must be installed together so an application cannot accidentally mix incompatible builds.

wit-bindgen, Autoconf, Bison, re2c, and the PHP/PHPX source trees are SDK producer dependencies only. They are never searched for or invoked by tpc --wasm.