Nomad changes

config.m4

@@ -0,0 +1,38 @@
+dnl Configuration for Rust-based PHP extension via ext-php-rs.
+dnl Allows phpize to recognize this extension during source compilation (PIE fallback).
+
+PHP_ARG_ENABLE([kreuzberg],
+  [whether to enable the kreuzberg extension],
+  [AS_HELP_STRING([--enable-kreuzberg],
+    [Enable kreuzberg extension support])],
+  [yes])
+
+if test "$PHP_KREUZBERG_ENABLED" = "yes"; then
+  dnl Recognize the extension directory for phpize/make
+  PHP_NEW_EXTENSION(kreuzberg, [], $ext_shared)
+
+  dnl Invoke cargo build to compile the Rust FFI library
+  AC_CONFIG_COMMANDS([cargo-build], [
+    if test -f "crates/kreuzberg-php/Cargo.toml"; then
+      cargo build --release --manifest-path crates/kreuzberg-php/Cargo.toml || exit 1
+      cargo_output_dir="crates/kreuzberg-php/target/release"
+      ext_soname="kreuzberg"
+
+      dnl Detect output filename based on platform
+      if test -f "${cargo_output_dir}/libkreuzberg_php.dylib"; then
+        cargo_lib="${cargo_output_dir}/libkreuzberg_php.dylib"
+      elif test -f "${cargo_output_dir}/libkreuzberg_php.so"; then
+        cargo_lib="${cargo_output_dir}/libkreuzberg_php.so"
+      else
+        AC_MSG_ERROR([cargo build succeeded but .so/.dylib not found])
+      fi
+
+      dnl Copy the compiled library to modules/ directory for phpize to install
+      cp "${cargo_lib}" "modules/${ext_soname}.so" || exit 1
+    else
+      AC_MSG_ERROR([crates/kreuzberg-php/Cargo.toml not found])
+    fi
+  ], [
+    extension_name=kreuzberg
+  ])
+fi