- Hooks into PHP's configure system
- Both for shared and static extensions
- Also checks for libraries, functions, and system/OS dependent features
Minimal config.m4:
PHP_ARG_ENABLE(helloworld, whether to enable helloworld support,
[ --enable-helloword Enable helloworld support])
if test "$PHP_helloworld" != "no"; then
PHP_NEW_EXTENSION(helloworld, helloworld.c, $ext_shared)
fi