[Buildroot] [Bug 14931] New: package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[Buildroot] [Bug 14931] New: package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

            Bug ID: 14931
           Summary: package/qt5/qt5webengine: build fails with
                    unicode/uchar.h not found
           Product: buildroot
           Version: 2022.02.4
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: wg@grandegger.com
                CC: buildroot@uclibc.org
  Target Milestone: ---

Created attachment 9351
  --> https://bugs.busybox.net/attachment.cgi?id=9351&action=edit
Buildroot defconfig

The build of the package webengine fails with the error shown below.
The missing file "unicode/uchar.h" is not under "/usr/include" but
"$(HOST_DIR)/usr/include", which is obviously not used.

I'm using Buildroot 2022.02.4 under Ubuntu 22.04 LTS.

Thanks for your support.

Wolfgang

[6734/21974] CXX v8_snapshot/obj/v8/v8_libbase/cpu.o
[6735/21974] CXX
v8_snapshot/obj/v8/gen-regexp-special-case/gen-regexp-special-case.o
FAILED: v8_snapshot/obj/v8/gen-regexp-special-case/gen-regexp-special-case.o 
/usr/bin/g++ -MMD -MF
v8_snapshot/obj/v8/gen-regexp-special-case/gen-regexp-special-case.o.d
-DUSE_UDEV -DUSE_AURA=1 -DUSE_NSS_CERTS=1 -DUSE_OZONE=1 -DOFFICIAL_BUILD
-DTOOLKIT_QT -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
-DNO_UNWIND_TABLES -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DNDEBUG
-DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0
-DV8_TYPED_ARRAY_MAX_SIZE_IN_HEAP=64 -DENABLE_MINOR_MC -DV8_INTL_SUPPORT
-DV8_CONCURRENT_MARKING -DV8_ENABLE_LAZY_SOURCE_POSITIONS
-DV8_WIN64_UNWINDING_INFO -DV8_ENABLE_REGEXP_INTERPRETER_THREADED_DISPATCH
-DV8_SNAPSHOT_COMPRESSION -DV8_COMPRESS_POINTERS -DV8_31BIT_SMIS_ON_64BIT_ARCH
-DV8_DEPRECATION_WARNINGS -DV8_REVERSE_JSARGS -DV8_TARGET_ARCH_X64
-DV8_HAVE_TARGET_OS -DV8_TARGET_OS_LINUX -DDISABLE_UNTRUSTED_CODE_MITIGATIONS
-DV8_COMPRESS_POINTERS -DV8_31BIT_SMIS_ON_64BIT_ARCH -DV8_DEPRECATION_WARNINGS
-DV8_REVERSE_JSARGS -DUSING_SYSTEM_ICU=1
-DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC -DUCHAR_TYPE=uint16_t
-Iv8_snapshot/gen -I../../3rdparty/chromium -I../../3rdparty/chromium/v8
-I../../3rdparty/chromium/v8/include -Iv8_snapshot/gen/v8 -Iv8_snapshot/gen
-Iv8_snapshot/gen -fno-strict-aliasing --param=ssp-buffer-size=4
-fstack-protector -fno-unwind-tables -fno-asynchronous-unwind-tables -fPIC
-pipe -pthread -m64 -Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
-Wno-unused-local-typedefs -Wno-maybe-uninitialized
-Wno-deprecated-declarations -fno-delete-null-pointer-checks -Wno-comments
-Wno-packed-not-aligned -Wno-dangling-else -Wno-missing-field-initializers
-Wno-unused-parameter -fno-omit-frame-pointer -g0 -fvisibility=hidden
-Wno-strict-overflow -Wno-return-type -O3 -fno-ident -fdata-sections
-ffunction-sections -I/usr/include -I/usr/include -std=gnu++14 -Wno-narrowing
-Wno-class-memaccess -Wno-attributes -Wno-class-memaccess
-Wno-subobject-linkage -Wno-invalid-offsetof -Wno-return-type
-Wno-deprecated-copy -fno-exceptions -fno-rtti -fvisibility-inlines-hidden -c
../../3rdparty/chromium/v8/src/regexp/gen-regexp-special-case.cc -o
v8_snapshot/obj/v8/gen-regexp-special-case/gen-regexp-special-case.o
In file included from
../../3rdparty/chromium/v8/src/regexp/gen-regexp-special-case.cc:10:
../../3rdparty/chromium/v8/src/regexp/special-case.h:12:10: fatal error:
unicode/uchar.h: No such file or directory
   12 | #include "unicode/uchar.h"
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.
[6736/21974] CXX v8_snapshot/obj/v8/v8_libbase/stack_trace.o
[6737/21974] CXX host/obj/third_party/protobuf/protoc_lib/js_generator.o
[6738/21974] CXX v8_snapshot/obj/v8/v8_libbase/division-by-constant.o
[6739/21974] CXX v8_snapshot/obj/v8/v8_libbase/file-utils.o
[6740/21974] CXX v8_snapshot/obj/v8/v8_libbase/functional.o
[6741/21974] CXX
v8_snapshot/obj/v8/bytecode_builtins_list_generator/bytecode-operands.o
[6742/21974] ACTION
//third_party/blink/public/mojom:mojom_platform__generator(/home/wolf/test/pc_x86_64_efi/build/qt5webengine-5.15.8/src/toolchain:target)
[6743/21974] CXX v8_snapshot/obj/v8/v8_libbase/bounded-page-allocator.o
[6744/21974] ACTION
//third_party/devtools-frontend/src/front_end/sdk:devtools_entrypoint-bundle-tsconfig(/home/wolf/test/pc_x86_64_efi/build/qt5webengine-5.15.8/src/toolchain:target)
[6745/21974] CXX
v8_snapshot/obj/v8/bytecode_builtins_list_generator/generate-bytecodes-builtins-list.o
[6746/21974] CXX
v8_snapshot/obj/v8/bytecode_builtins_list_generator/bytecodes.o
[6747/21974] ACTION
//third_party/devtools-frontend/src/front_end/ui:devtools_entrypoint-bundle-tsconfig(/home/wolf/test/pc_x86_64_efi/build/qt5webengine-5.15.8/src/toolchain:target)
[6748/21974] CXX host/obj/third_party/protobuf/protoc_lib/python_generator.o
[6749/21974] ACTION
//third_party/dav1d:dav1d_asm_action(/home/wolf/test/pc_x86_64_efi/build/qt5webengine-5.15.8/src/toolchain:target)
[6750/21974] ACTION
//third_party/dav1d:dav1d_asm_action(/home/wolf/test/pc_x86_64_efi/build/qt5webengine-5.15.8/src/toolchain:target)
[6751/21974] CXX v8_snapshot/obj/v8/torque/torque.o
[6752/21974] CXX v8_snapshot/obj/v8/torque_base/torque_base_jumbo_1.o
[6753/21974] CXX
host/obj/third_party/perfetto/src/trace_processor/db/lib/column.o
[6754/21974] CXX v8_snapshot/obj/v8/torque_base/torque_base_jumbo_2.o
[6755/21974] CXX v8_snapshot/obj/v8/torque_base/torque_base_jumbo_3.o
ninja: build stopped: subcommand failed.
make[5]: *** [Makefile.gn_run:360: run_ninja] Error 1
make[4]: *** [Makefile:82: sub-gn_run-pro-make_first] Error 2
make[3]: *** [Makefile:79: sub-core-make_first] Error 2
make[2]: *** [Makefile:49: sub-src-make_first] Error 2
make[1]: *** [package/pkg-generic.mk:293:
/home/wolf/test/pc_x86_64_efi/build/qt5webengine-5.15.8/.stamp_built] Error 2
make: *** [Makefile:23: _all] Error 2

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[Buildroot] [Bug 14931] package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

--- Comment #1 from Stefan Mayrhofer <stefan.mayrhofer@ginzinger.com> ---
(In reply to wg from comment #0)

Hi Wolfgang,

we are currently working on a solution and already have found one (it needs
some more polishing but until it gets upstreamed, you can take a look at it):

https://paste.debian.net/1251470/

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[Buildroot] [Bug 14931] package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

--- Comment #2 from wg@grandegger.com ---
Hello Stefan,

I can confirm, that the patch fixes that issue, thanks!

But now I'm struggle with other problems! Building qt5webengine is always a
challenge! What I see is that the build first eats up *all* of the 16 GB memory
and next the swap space. When it's exchausted, I get:

  x86_64-buildroot-linux-gnu-g++.br_real: fatal error: Killed signal terminated
program cc1plus

Weird, maybe it's related to my i7-12700 running Ubuntu 22.04... I'm now
building
on another system...

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[Buildroot] [Bug 14931] package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

--- Comment #3 from Maik Dilger <maik.dilger@isgus.de> ---
Hello Stefan,

could you please reupload the fix as the paste on debian is no longer
available?
I tried to update our buildroot to 2022.02.12 and 2023.02 and both have the
same issue.

Thanks

Maik

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[Buildroot] [Bug 14931] package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

--- Comment #4 from Jose Angel Torres <jose@source.parts> ---
Does anyone have the patch that resolves this issue so we can push it through
and mark this issue as resolved? If not, I can dig back into this but would
rather not have to start from scratch. If anyone on this issue has a moment,
please add it as an attachment to this issue.

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[Buildroot] [Bug 14931] package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

--- Comment #5 from Kadir Yilmaz <kadir.c.yilmaz@gmail.com> ---
I have just submitted a patch to this  bug:

https://lists.buildroot.org/pipermail/buildroot/2023-October/677826.html

It manifests itself in 2 ways:

- If the build host has unicode/uchar.h in default include dirs, e.g. on 
ubuntu /usr/include/unicode/uchar.h provided by libicu-dev package, build finds
the header and later on linking fails.

- Otherwise fails with the error described in this bug.

By removing "webengine-icu" config option qt5webengine, build uses the one
bundled in qt, which addresses at least the build failure.

Here are the some hints in qt config files:

qtwebengine/src/core/configure.json:16:            "webengine-icu": { "type":
"enum", "name": "webengine-system-icu", "values": { "system": "yes", "qt": "no"
} },

qtwebengine/config_help.txt:8:  -webengine-icu ................. Use system ICU
libraries [system/qt]

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[Buildroot] [Bug 14931] package/qt5/qt5webengine: build fails with unicode/uchar.h not found

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14931

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |yann.morin.1998@free.fr
         Resolution|---                         |MOVED

--- Comment #6 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Thank you for your report.

The issue tracker for the Buildroot project has been moved to
the Gitlab.com issue tracker:
    https://gitlab.com/buildroot.org/buildroot/-/issues

We are taking this opportunity to close old issues in this old
tracker. If you believe your issue is still relevant, please
open one in the new issue tracker.

Thank you!

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