remove redundant flags

- -target
- linkopts

toolchain/private/cc_toolchains.bzl

@@ -31,11 +31,11 @@ def declare_cc_toolchains(os, zig_sdk_path, zig_include_root):
             )
             absolute_tool_paths[name] = tool_path
 
-        linkopts = target_config.linkopts
         dynamic_library_linkopts = target_config.dynamic_library_linkopts
         copts = target_config.copts
+        linkopts = []
         for s in getattr(target_config, "linker_version_scripts", []):
-            linkopts = linkopts + ["-Wl,--version-script,%s/%s" % (zig_sdk_path, s)]
+            linkopts = ["-Wl,--version-script,%s/%s" % (zig_sdk_path, s)]
         for incl in getattr(target_config, "compiler_extra_includes", []):
             copts = copts + ["-include", zig_sdk_path + "/" + incl]
 

toolchain/private/defs.bzl

@@ -54,7 +54,6 @@ def _target_darwin(gocpu, zigcpu):
             "libc/include/any-macos.{}-any".format(min_os),
             "libc/include/any-macos-any",
         ],
-        linkopts = [],
         dynamic_library_linkopts = ["-Wl,-undefined=dynamic_lookup"],
         copts = [],
         bazel_target_cpu = "darwin",
@@ -73,7 +72,6 @@ def _target_windows(gocpu, zigcpu):
             "libunwind/include",
             "libc/include/any-windows-any",
         ],
-        linkopts = [],
         dynamic_library_linkopts = [],
         copts = [],
         bazel_target_cpu = "x64_windows",
@@ -106,7 +104,6 @@ def _target_linux_gnu(gocpu, zigcpu, glibc_version):
         toplevel_include = ["glibc-hacks"] if fcntl_hack else [],
         compiler_extra_includes = ["glibc-hacks/glibchack-fcntl.h"] if fcntl_hack else [],
         linker_version_scripts = ["glibc-hacks/fcntl.map"] if fcntl_hack else [],
-        linkopts = ["-lc++", "-lc++abi"],
         dynamic_library_linkopts = [],
         copts = [],
         bazel_target_cpu = "k8",
@@ -131,7 +128,6 @@ def _target_linux_musl(gocpu, zigcpu):
                    (["libc/include/{}-linux-any".format(zigcpu)] if zigcpu != "x86_64" else []) + [
             "libc/include/any-linux-any",
         ],
-        linkopts = [],
         dynamic_library_linkopts = [],
         copts = ["-D_LIBCPP_HAS_MUSL_LIBC", "-D_LIBCPP_HAS_THREAD_API_PTHREAD"],
         bazel_target_cpu = "k8",