e990fcc4b0
In C++11 a user declared destructor still requires the compiler to implicitly default the copy constructor and copy assignment operator, but this is deprecated. Note that a user declared destructor suppresses the move constructor and move assignment operator; a user declared destructor exists if any '~Foo' method declaration appears inside 'class Foo' (even if defaulted); if the copy and move operations are the same then copy operations that take 'const Foo&' will do fine double duty as move operations. Clang seems to have an issue with this warning, in that it does not appear to distinguish between compiler defaulted and user defaulted destructors. As a result, it does not always warn when it should. There may yet be places in the code where a move operation is desired but may be suppressed because the implicitly defaulted moves are not declared because a destructor has been declared. This wraps dawn and shaderc configs in 'third_party' so that their headers will be included through '-isystem' in order to avoid the warnings generated by including their headers. Change-Id: I681524cd890d86305aa99b6b765a52113b4dfa4b Reviewed-on: https://skia-review.googlesource.com/c/skia/+/280406 Reviewed-by: Mike Klein <mtklein@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Ben Wagner <bungeman@google.com>
103 lines
2.4 KiB
Plaintext
103 lines
2.4 KiB
Plaintext
# Copyright 2016 Google Inc.
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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template("third_party_config") {
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enabled = !defined(invoker.enabled) || invoker.enabled
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config(target_name) {
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if (enabled) {
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forward_variables_from(invoker, "*", [ "include_dirs" ])
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cflags = []
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if (is_win) {
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include_dirs = invoker.include_dirs
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if (is_clang) {
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foreach(dir, invoker.include_dirs) {
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cflags += [
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"/imsvc",
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rebase_path(dir),
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]
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}
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}
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} else {
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foreach(dir, invoker.include_dirs) {
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if (werror) {
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cflags += [
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"-isystem",
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rebase_path(dir),
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]
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} else {
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cflags += [
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"-I",
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rebase_path(dir),
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]
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}
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}
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}
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} else {
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not_needed(invoker, "*")
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}
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}
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}
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template("third_party") {
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enabled = !defined(invoker.enabled) || invoker.enabled
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third_party_config(target_name + "_public") {
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if (enabled) {
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if (defined(invoker.public_defines)) {
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defines = invoker.public_defines
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}
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include_dirs = invoker.public_include_dirs
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} else {
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not_needed(invoker, "*")
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}
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}
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# You can't make a static_library() without object files to archive,
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# but we can treat targets without object files as a source_set().
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if (defined(invoker.sources)) {
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_mode = "static_library"
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} else {
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_mode = "source_set"
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}
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target(_mode, target_name) {
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if (enabled) {
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forward_variables_from(invoker, "*", [ "public_include_dirs" ])
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public_configs = [ ":" + target_name + "_public" ]
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# Warnings are just noise if we're not maintaining the code.
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if (is_win) {
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cflags = [ "/w" ]
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} else {
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cflags = [ "-w" ]
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}
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}
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}
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}
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set_defaults("third_party") {
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configs = default_configs
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if (!is_official_build) {
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# Official builds don't have warnings to begin with.
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configs -= [ "//gn:warnings" ]
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}
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if (is_debug) {
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configs += [ "//gn:optimize" ]
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}
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if (sanitize == "ASAN") {
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configs += [ "//gn:recover_pointer_overflow" ]
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}
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}
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template("system") {
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config(target_name + "_public") {
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forward_variables_from(invoker, "*", [])
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}
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group(target_name) {
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public_configs = [ ":" + target_name + "_public" ]
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}
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}
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