Project ERROR: Unknown module(s) in QT: webenginewidgets in RPI4

[mvsri]

@jsulm
It's a very lengthy data after going through this i can found this
"FAILED: libosmesa.so "

../../3rdparty/chromium/third_party/pdfium/third_party/libopenjpeg20/opj_clock.c -o obj/third_party/pdfium/third_party/fx_libopenjpeg/opj_clock.o
[5/10450] /usr/bin/g++ -shared -Wl,--fatal-warnings -Wl,--build-id=sha1 -fPIC -Wl,-z,noexecstack -Wl,-z,now -Wl,-z,relro -Wl,-z,defs -Wl,--as-needed -fuse-ld=gold -B../../3rdparty/chromium/third_party/binutils/Linux_x64/Release/bin -Wl,--icf=all -Wl,-O2 -Wl,--gc-sections -rdynamic -o "./libosmesa.so" -Wl,-soname="libosmesa.so" @"./libosmesa.so.rsp"
FAILED: libosmesa.so 
/usr/bin/g++ -shared -Wl,--fatal-warnings -Wl,--build-id=sha1 -fPIC -Wl,-z,noexecstack -Wl,-z,now -Wl,-z,relro -Wl,-z,defs -Wl,--as-needed -fuse-ld=gold -B../../3rdparty/chromium/third_party/binutils/Linux_x64/Release/bin -Wl,--icf=all -Wl,-O2 -Wl,--gc-sections -rdynamic -o "./libosmesa.so" -Wl,-soname="libosmesa.so" @"./libosmesa.so.rsp"
/usr/bin/ld.gold: error: obj/third_party/mesa/osmesa/driverfuncs.o uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/osmesa/meta.o uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/osmesa/osmesa.o uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/builtin_function.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/enums.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/lex.yy.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/program_parse.tab.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/entry.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/mapi_glapi.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/stub.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/table.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/u_current.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/u_execmem.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/accum.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/api_arrayelt.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/api_exec.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/api_loopback.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/api_validate.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/arbprogram.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/arrayobj.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/atifragshader.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/attrib.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/blend.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/bufferobj.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/buffers.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/clear.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/clip.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/colortab.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/condrender.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/context.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/convolve.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/cpuinfo.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/debug.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/depth.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/dlist.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/drawpix.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/drawtex.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/enable.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/errors.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/eval.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/execmem.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/extensions.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/fbobject.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/feedback.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/ff_fragment_shader.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/ffvertex_prog.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/fog.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/format_pack.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/format_unpack.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/formats.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/framebuffer.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/get.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/getstring.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/glformats.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/hash.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/hint.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/histogram.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/image.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/imports.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/light.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/lines.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/matrix.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/mipmap.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/mm.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/multisample.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/nvprogram.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/pack.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/pbo.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/pixel.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa.a(obj/third_party/mesa/mesa/pixelstore.o) uses VFP register arguments, output does not
/usr/bin/ld.gold: error: obj/third_party/mesa/libmesa_libglslcommon.a(obj/third_party/mesa/mesa_libglslcommon/strtod.o) uses VFP register arguments, output does not
collect2: error: ld returned 1 exit status
[6/10450] /usr/bin/gcc -MMD -MF obj/third_party/pdfium/third_party/fx_libopenjpeg/pi.o.d -DV8_DEPRECATION_WARNINGS -DUSE_UDEV -DUSE_AURA=1 -DUSE_NSS_CERTS=1 -DUSE_OZONE=1 -DNO_TCMALLOC -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DOFFICIAL_BUILD -DCHROMIUM_BUILD -DFIELDTRIAL_TESTING_ENABLED -DTOOLKIT_QT -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DOPJ_STATIC -DPNG_PREFIX -DPNG_USE_READ_MACROS -DPDF_ENABLE_V8 -DPDFIUM_PRINT_TEXT_WITH_GDI -Igen -I../../3rdparty/chromium -I../../3rdparty/chromium/third_party/pdfium -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -funwind-tables -fPIC -pipe -pthread -march=armv6zk -mfloat-abi=softfp -mfpu=vfp -O2 -fno-ident -fdata-sections -ffunction-sections -fno-omit-frame-pointer -g0 -fvisibility=hidden -Wno-psabi -Wno-unused-local-typedefs -Wno-maybe-uninitialized -Wno-deprecated-declarations -fno-delete-null-pointer-checks -Wno-comments -Wno-dangling-else -Wno-packed-not-aligned -Wno-missing-field-initializers -Wno-unused-parameter -std=gnu11 -c ../../3rdparty/chromium/third_party/pdfium/third_party/libopenjpeg20/pi.c -o obj/third_party/pdfium/third_party/fx_libopenjpeg/pi.o
ninja: build stopped: subcommand failed.
make[4]: *** [Makefile.gn_run:1087: run_ninja] Error 1
make[4]: Leaving directory '/home/pi/Desktop/qt-everywhere-src-5.12.8/qtwebengine/src/core'
make[3]: *** [Makefile:82: sub-gn_run-pro-make_first] Error 2
make[3]: Leaving directory '/home/pi/Desktop/qt-everywhere-src-5.12.8/qtwebengine/src/core'
make[2]: *** [Makefile:81: sub-core-make_first] Error 2
make[2]: Leaving directory '/home/pi/Desktop/qt-everywhere-src-5.12.8/qtwebengine/src'
make[1]: *** [Makefile:49: sub-src-make_first] Error 2
make[1]: Leaving directory '/home/pi/Desktop/qt-everywhere-src-5.12.8/qtwebengine'
make: *** [Makefile:1005: module-qtwebengine-make_first] Error 2

[jsulm]

@mvsri said in Project ERROR: Unknown module(s) in QT: webenginewidgets in RPI4:

/usr/bin/ld.gold: error: obj/third_party/mesa/osmesa/meta.o uses VFP register arguments, output does not

Looks like your build artefacts use different ABIs than what is in third_party.
How was third_party content build?

[mvsri]

@jsulm
http://download.qt.io/official_releases/qt/5.12/5.12.8/single/qt-everywhere-src-5.12.8.tar.xz

i downloaded it form here and followed this steps https://www.tal.org/tutorials/building-qt-512-raspberry-pi

according to that i can say that 3rd party content also built along with the code