-fno-sanitize=undefined is enabled in zig by default, not in gcc and clang

config/env.ini

@@ -71,7 +71,7 @@ CXX=${SPC_LINUX_DEFAULT_CXX}
 AR=${SPC_LINUX_DEFAULT_AR}
 LD=${SPC_LINUX_DEFAULT_LD}
 ; default compiler flags, used in CMake toolchain file, openssl and pkg-config build
-SPC_DEFAULT_C_FLAGS="-fPIC -Os -Wno-error=date-time"
+SPC_DEFAULT_C_FLAGS="-fPIC -Os -Wno-error=date-time -fno-sanitize=undefined"
 SPC_DEFAULT_CXX_FLAGS="-fPIC -Os"
 ; extra libs for building php executable, used in `make` command for building php (this value may changed by extension build process, space separated)
 SPC_EXTRA_LIBS=
@@ -98,11 +98,11 @@ SPC_CMD_VAR_PHP_CONFIGURE_CPPFLAGS="-I${BUILD_INCLUDE_PATH}"
 ; LDFLAGS for configuring php
 SPC_CMD_VAR_PHP_CONFIGURE_LDFLAGS="-L${BUILD_LIB_PATH}"
 ; LIBS for configuring php
-SPC_CMD_VAR_PHP_CONFIGURE_LIBS="-ldl -lpthread -lm"
+SPC_CMD_VAR_PHP_CONFIGURE_LIBS="-ldl -lrt -lpthread -lm -lresolv -lutil"
 ; EXTRA_CFLAGS for `make` php
 SPC_CMD_VAR_PHP_MAKE_EXTRA_CFLAGS="-g -fstack-protector-strong -fno-ident -fPIE ${SPC_DEFAULT_C_FLAGS}"
 ; EXTRA_LIBS for `make` php
-SPC_CMD_VAR_PHP_MAKE_EXTRA_LIBS="-ldl -lpthread -lm"
+SPC_CMD_VAR_PHP_MAKE_EXTRA_LIBS="-ldl -lrt -lpthread -lm -lresolv -lutil"
 ; EXTRA_LDFLAGS for `make` php, can use -release to set a soname for libphp.so
 SPC_CMD_VAR_PHP_MAKE_EXTRA_LDFLAGS=""
 ; EXTRA_LDFLAGS_PROGRAM for `make` php

src/SPC/builder/extension/opcache.php

@@ -51,4 +51,15 @@ class opcache extends Extension
     {
         return 'Zend Opcache';
     }
+
+    public function patchBeforeMake(): bool
+    {
+        if (!str_contains(getenv('CC'), 'zig')) {
+            return false;
+        }
+        // opcache requires -lunwind, the equivalent to -lgcc_s that gcc automatically links
+        $extra_libs = trim(getenv('SPC_EXTRA_LIBS') . ' -lunwind');
+        f_putenv('SPC_EXTRA_LIBS=' . $extra_libs);
+        return true;
+    }
 }

src/SPC/builder/linux/LinuxBuilder.php

@@ -103,6 +103,10 @@ class LinuxBuilder extends UnixBuilderBase
             $zts = '';
         }
         $disable_jit = $this->getOption('disable-opcache-jit', false) ? '--disable-opcache-jit ' : '';
+        $cc = trim(getenv('CC'));
+        if (!$disable_jit && $this->getExt('opcache') && str_contains($cc, 'zig')) {
+            f_putenv("CC=$cc -fno-sanitize=undefined");
+        }
 
         $config_file_path = $this->getOption('with-config-file-path', false) ?
             ('--with-config-file-path=' . $this->getOption('with-config-file-path') . ' ') : '';
@@ -175,6 +179,9 @@ class LinuxBuilder extends UnixBuilderBase
             }
             $this->buildEmbed();
         }
+        if (!$disable_jit && $this->getExt('opcache') && str_contains($cc, 'zig')) {
+            f_putenv("CC=$cc");
+        }
         if ($enableFrankenphp) {
             logger()->info('building frankenphp');
             $this->buildFrankenphp();