qt5-qtwebengine: fatal error: 'optional' file not found

[mf2k (Frank Schima)]

Seeing this error attempting to install qt5-qtwebengine 5.15.12:

:info:build ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -MMD -MF obj/services/tracing/public/mojom/mojom/perfetto_service.mojom-test-utils.o.d -DIS_TRACING_MOJOM_IMPL -DOFFICIAL_BUILD -DTOOLKIT_QT -D_LIBCPP_HAS_NO_ALIGNED_ALLOCATION -DCR_XCODE_VERSION=1420 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=0 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DUSE_CHROMIUM_ICU=1 -DU_ENABLE_TRACING=1 -DU_ENABLE_RESOURCE_TRACING=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DUCHAR_TYPE=uint16_t -Igen -I../../3rdparty/chromium -I../../3rdparty/chromium/third_party/perfetto/include -Igen/third_party/perfetto/build_config -Igen/third_party/perfetto -I../../3rdparty/chromium/third_party/abseil-cpp -I../../3rdparty/chromium/third_party/boringssl/src/include -I../../3rdparty/chromium/third_party/protobuf/src -Igen/protoc_out -I../../3rdparty/chromium/third_party/ced/src -I../../3rdparty/chromium/third_party/icu/source/common -I../../3rdparty/chromium/third_party/icu/source/i18n -fno-strict-aliasing -fstack-protector -Wno-unknown-attributes -Wno-unknown-pragmas -Wno-unknown-warning-option -fcolor-diagnostics -fmerge-all-constants -arch x86_64 -Wall -Wextra -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -Wimplicit-fallthrough -Wunreachable-code -Wthread-safety -Wextra-semi -Wunguarded-availability -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-psabi -Wno-ignored-pragma-optimize -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-for-linkage -Wno-max-tokens -Oz -fno-omit-frame-pointer -g0 -isysroot ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk -mmacosx-version-min=13.0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wno-parentheses-equality -Wno-tautological-compare -Wno-thread-safety-attributes -Wno-undefined-bool-conversion -Wno-tautological-undefined-compare -std=c++14 -fno-trigraphs -Wno-trigraphs -stdlib=libc++ -fno-exceptions -fno-rtti -fvisibility-inlines-hidden -c gen/services/tracing/public/mojom/perfetto_service.mojom-test-utils.cc -o obj/services/tracing/public/mojom/mojom/perfetto_service.mojom-test-utils.o
:info:build In file included from gen/services/tracing/public/mojom/perfetto_service.mojom-test-utils.cc:13:
:info:build In file included from gen/services/tracing/public/mojom/perfetto_service.mojom-test-utils.h:10:
:info:build In file included from gen/services/tracing/public/mojom/perfetto_service.mojom.h:24:
:info:build In file included from ../../3rdparty/chromium/mojo/public/cpp/bindings/clone_traits.h:11:
:info:build In file included from ../../3rdparty/chromium/base/containers/flat_map.h:13:
:info:build In file included from ../../3rdparty/chromium/base/containers/flat_tree.h:14:
:info:build In file included from ../../3rdparty/chromium/base/stl_util.h:17:
:info:build In file included from ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk/usr/include/c++/v1/map:495:
:info:build ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk/usr/include/c++/v1/__node_handle:16:10: fatal error: 'optional' file not found
:info:build #include <optional>
:info:build          ^~~~~~~~~~
:info:build 1 error generated.

[mf2k (Frank Schima)]

Ventura 13.1 x64
Xcode 14.2

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

This seems strange.

ls -al /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk/usr/include/c++/v1/optional

indicates this file exists on my system.
Does it not on yours?

[mf2k (Frank Schima)]

$ ls -al /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk/usr/include/c++/v1/optional
-rw-r--r--  8 root  wheel  43845 Sep 30 01:07 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk/usr/include/c++/v1/optional

[kencu (Ken)]

I suspect it’s because build sets std=c++14 but optional needs std=c++17.

​https://en.cppreference.com/w/cpp/utility/optional

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

I am afraid I cannot reproduce this error on my machine.
As far as I can tell, ​neither can the buildbots.
optional is included via map, which is perfectly usable with C++14.
I am at a bit of a loss.
Do simple programs like

#include <map>

int main() {
    return 0
}

work?

[kencu (Ken)]

I have the exact same setup I believe, Frank:

macOS 13.1 22C65 x86_64
Xcode 14.2 14C18

and it gets past that file without any trouble. Seems like an identical build line:

[8980/23844] ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -MMD -MF obj/services/tracing/public/mojom/mojom/perfetto_service.mojom-test-utils.o.d -DIS_TRACING_MOJOM_IMPL -DOFFICIAL_BUILD -DTOOLKIT_QT -D_LIBCPP_HAS_NO_ALIGNED_ALLOCATION -DCR_XCODE_VERSION=1420 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=0 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DUSE_CHROMIUM_ICU=1 -DU_ENABLE_TRACING=1 -DU_ENABLE_RESOURCE_TRACING=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DUCHAR_TYPE=uint16_t -Igen -I../../3rdparty/chromium -I../../3rdparty/chromium/third_party/perfetto/include -Igen/third_party/perfetto/build_config -Igen/third_party/perfetto -I../../3rdparty/chromium/third_party/abseil-cpp -I../../3rdparty/chromium/third_party/boringssl/src/include -I../../3rdparty/chromium/third_party/protobuf/src -Igen/protoc_out -I../../3rdparty/chromium/third_party/ced/src -I../../3rdparty/chromium/third_party/icu/source/common -I../../3rdparty/chromium/third_party/icu/source/i18n -fno-strict-aliasing -fstack-protector -Wno-unknown-attributes -Wno-unknown-pragmas -Wno-unknown-warning-option -fcolor-diagnostics -fmerge-all-constants -arch x86_64 -Wall -Wextra -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -Wimplicit-fallthrough -Wunreachable-code -Wthread-safety -Wextra-semi -Wunguarded-availability -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-psabi -Wno-ignored-pragma-optimize -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-for-linkage -Wno-max-tokens -Oz -fno-omit-frame-pointer -g0 -isysroot ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk -mmacosx-version-min=13.0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wno-parentheses-equality -Wno-tautological-compare -Wno-thread-safety-attributes -Wno-undefined-bool-conversion -Wno-tautological-undefined-compare -std=c++14 -fno-trigraphs -Wno-trigraphs -stdlib=libc++ -fno-exceptions -fno-rtti -fvisibility-inlines-hidden -c gen/services/tracing/public/mojom/perfetto_service.mojom-test-utils.cc -o obj/services/tracing/public/mojom/mojom/perfetto_service.mojom-test-utils.o
:info:build  ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -MMD -MF obj/services/tracing/public/mojom/mojom/perfetto_service.mojom-test-utils.o.d -DIS_TRACING_MOJOM_IMPL -DOFFICIAL_BUILD -DTOOLKIT_QT -D_LIBCPP_HAS_NO_ALIGNED_ALLOCATION -DCR_XCODE_VERSION=1420 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=0 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DUSE_CHROMIUM_ICU=1 -DU_ENABLE_TRACING=1 -DU_ENABLE_RESOURCE_TRACING=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DUCHAR_TYPE=uint16_t -Igen -I../../3rdparty/chromium -I../../3rdparty/chromium/third_party/perfetto/include -Igen/third_party/perfetto/build_config -Igen/third_party/perfetto -I../../3rdparty/chromium/third_party/abseil-cpp -I../../3rdparty/chromium/third_party/boringssl/src/include -I../../3rdparty/chromium/third_party/protobuf/src -Igen/protoc_out -I../../3rdparty/chromium/third_party/ced/src -I../../3rdparty/chromium/third_party/icu/source/common -I../../3rdparty/chromium/third_party/icu/source/i18n -fno-strict-aliasing -fstack-protector -Wno-unknown-attributes -Wno-unknown-pragmas -Wno-unknown-warning-option -fcolor-diagnostics -fmerge-all-constants -arch x86_64 -Wall -Wextra -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -Wimplicit-fallthrough -Wunreachable-code -Wthread-safety -Wextra-semi -Wunguarded-availability -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-psabi -Wno-ignored-pragma-optimize -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-for-linkage -Wno-max-tokens -Oz -fno-omit-frame-pointer -g0 -isysroot ../../../../../../../../../../../../Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk -mmacosx-version-min=13.0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wno-parentheses-equality -Wno-tautological-compare -Wno-thread-safety-attributes -Wno-undefined-bool-conversion -Wno-tautological-undefined-compare -std=c++14 -fno-trigraphs -Wno-trigraphs -stdlib=libc++ -fno-exceptions -fno-rtti -fvisibility-inlines-hidden -c gen/services/tracing/public/mojom/perfetto_service.mojom-test-utils.cc -o obj/services/tracing/public/mojom/mojom/perfetto_service.mojom-test-utils.o

even though <optional> is listed as being available as of c++17 in every reference, it seems to be accepted as a header anyway... must be some magical reason for that.

So -- looking like some weird thing on your system somehow? Exactly what, I have no idea.

[mf2k (Frank Schima)]

After a port sync and a re-build, this builds for me now. Not sure what happened.