[php-src] Issue #12797: PHP_ADD_EXTENSION_DEP doesn't fail when expected (build system)

Issue: https://github.com/php/php-src/issues/12797 Author: dktapps ### Description I have the following m4 code: https://github.com/pmmp/ext-pmmpthread/blob/6a516e5b58d326e2dcc23bb75fba6e210d5b313f/config.m4#L33-L44 ```m4 CLASSES_SRC="classes/pool.c classes/thread.c classes/thread_safe_array.c classes/thread_safe.c classes/runnable.c classes/worker.c" PHP_NEW_EXTENSION(pmmpthread, php_pmmpthread.c $CLASSES_SRC src/copy.c src/monitor.c src/worker.c src/globals.c src/prepare.c src/store.c src/handlers.c src/object.c src/routine.c src/queue.c src/ext_sockets_hacks.c, $ext_shared,, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -Werror=implicit-function-declaration) PHP_ADD_BUILD_DIR($ext_builddir/src, 1) PHP_ADD_INCLUDE($ext_builddir) if test "$PHP_PMMPTHREAD_SOCKETS" != "no"; then AC_MSG_NOTICE([Support for passing Socket objects between threads enabled. The sockets extension must be loaded at runtime. You can disable support using --without-pmmpthread-sockets.]) AC_DEFINE(HAVE_PMMPTHREAD_EXT_SOCKETS_SUPPORT, 1, [Whether pmmpthread supports passing Socket objects between threads]) PHP_ADD_EXTENSION_DEP(pmmpthread, sockets) else AC_MSG_NOTICE([Support for passing Socket objects between threads disabled. You can enable support using --with-pmmpthread-sockets.]) fi fi ``` When using --disable-all or --disable-sockets in conjunction with --with-pmmpthread-sockets, I expect the configure command to fail (because of the PHP_ADD_EXTENSION_DEP(pmmpthread, sockets)), but it doesn't. The build proceeds and results in a compile error due to sockets being disabled. Similar code for Windows works correctly. ### PHP Version PHP 8.2 git 6a914cb7a50fafbda38a4d8acce3a06b97dbd994 ### Operating System WSL2 Ubuntu 20.04