Use custom config.m4 for grpc extension

Author: crazywhalecc

src/SPC/builder/extension/grpc.php

@@ -11,7 +11,6 @@
 use SPC\util\CustomExt;
 use SPC\util\GlobalEnvManager;
 use SPC\util\SPCConfigUtil;
-use SPC\util\SPCTarget;
 
 #[CustomExt('grpc')]
 class grpc extends Extension
@@ -21,20 +20,50 @@ public function patchBeforeBuildconf(): bool
         if ($this->builder instanceof WindowsBuilder) {
             throw new ValidationException('grpc extension does not support windows yet');
         }
+
+        // Fix deprecated PHP API usage in call.c
         FileSystem::replaceFileStr(
-            $this->source_dir . '/src/php/ext/grpc/call.c',
+            "{$this->source_dir}/src/php/ext/grpc/call.c",
             'zend_exception_get_default(TSRMLS_C),',
             'zend_ce_exception,',
         );
-        if (SPCTarget::getTargetOS() === 'Darwin') {
-            FileSystem::replaceFileRegex(
-                $this->source_dir . '/config.m4',
-                '/GRPC_LIBDIR=.*$/m',
-                'GRPC_LIBDIR=' . BUILD_LIB_PATH . "\n" . 'LDFLAGS="$LDFLAGS -framework CoreFoundation"'
-            );
-        }
-        FileSystem::replaceFileStr("{$this->source_dir}/config.m4", "CFLAGS=\"-std=c11 -g -O2\"\n", '');
-        file_put_contents("{$this->source_dir}/php_grpc.h", '#include "src/php/ext/grpc/php_grpc.h"');
+
+        $config_m4 = <<<'M4'
+PHP_ARG_ENABLE(grpc, [whether to enable grpc support], [AS_HELP_STRING([--enable-grpc], [Enable grpc support])])
+
+if test "$PHP_GRPC" != "no"; then
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
+  GRPC_LIBDIR=@@build_lib_path@@
+  PHP_ADD_LIBPATH($GRPC_LIBDIR)
+  PHP_ADD_LIBRARY(grpc,,GRPC_SHARED_LIBADD)
+  LIBS="-lpthread $LIBS"
+  PHP_ADD_LIBRARY(pthread)
+
+  case $host in
+    *darwin*)
+      PHP_ADD_LIBRARY(c++,1,GRPC_SHARED_LIBADD)
+      ;;
+    *)
+      PHP_ADD_LIBRARY(stdc++,1,GRPC_SHARED_LIBADD)
+      PHP_ADD_LIBRARY(rt,,GRPC_SHARED_LIBADD)
+      PHP_ADD_LIBRARY(rt)
+      ;;
+    esac
+
+  PHP_NEW_EXTENSION(grpc, @grpc_c_files@, $ext_shared, , -DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK=1)
+  PHP_SUBST(GRPC_SHARED_LIBADD)
+  PHP_INSTALL_HEADERS([ext/grpc], [php_grpc.h])
+fi
+M4;
+        $replace = get_pack_replace();
+        // load grpc c files from src/php/ext/grpc
+        $c_files = glob($this->source_dir . '/src/php/ext/grpc/*.c');
+        $replace['@grpc_c_files@'] = implode(" \\\n    ", array_map(fn ($f) => 'src/php/ext/grpc/' . basename($f), $c_files));
+        $config_m4 = str_replace(array_keys($replace), array_values($replace), $config_m4);
+        file_put_contents($this->source_dir . '/config.m4', $config_m4);
+
+        copy($this->source_dir . '/src/php/ext/grpc/php_grpc.h', $this->source_dir . '/php_grpc.h');
         return true;
     }
 
@@ -50,7 +79,6 @@ public function patchBeforeConfigure(): bool
     public function patchBeforeMake(): bool
     {
         parent::patchBeforeMake();
-        // add -Wno-strict-prototypes
         GlobalEnvManager::putenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_CFLAGS=' . getenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_CFLAGS') . ' -Wno-strict-prototypes');
         return true;
     }