Can you please share the details of how you were able to fix the source_location issue? Asking because I am experiencing the exact same issue.
In file included from ../../include/v8-platform.h:17: <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:235> ../../include/v8-source-location.h:9:10: fatal error: 'source_location' file not found <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:236> 9 | #include <source_location> <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:237> | ^~~~~~~~~~~~~~~~~ <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:238> 1 error generated. Moreover I am also experiencing this issue while building on Github Runner image Ubuntu 24.04 In file included from ../../src/base/bits.cc:5: <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:212> In file included from ../../src/base/bits.h:12: <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:213> ../../src/base/macros.h:157:10: error: no template named 'bit_cast' in namespace 'std'; did you mean simply 'bit_cast'? <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:214> 157 | return std::bit_cast<Dest, Source>(source); <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:215> | ^~~~~~~~~~~~~ <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:216> | bit_cast <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:217> ../../src/base/macros.h:141:26: note: 'bit_cast' declared here <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:218> 141 | V8_INLINE constexpr Dest bit_cast(Source const& source) noexcept { <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:219> | ^ <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:220> ../../src/base/macros.h:157:10: error: no template named 'bit_cast' in namespace 'std'; did you mean simply 'bit_cast'? <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:221> 157 | return std::bit_cast<Dest, Source>(source); <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:222> | ^~~~~~~~~~~~~ <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:223> | bit_cast <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:224> ../../src/base/macros.h:141:26: note: 'bit_cast' declared here <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:225> 141 | V8_INLINE constexpr Dest bit_cast(Source const& source) noexcept { <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:226> | ^ <https://github.com/cloudflare/stpyv8/actions/runs/20262462473/job/58177558566#step:5:227> 2 errors generated. Thanks, Angelo Il giorno martedì 28 ottobre 2025 alle 19:44:30 UTC+1 [email protected] ha scritto: > > An update: We were able to get around these issues by migrating our > Linux builds to the bundled C++ library. > > Ugh. Unfortunately, we had to go back to the system C++ library. It turns > out that disabling C++ modules (use_clang_modules=false) was another way to > resolve the original compilation errors. > > The only other divergence from the bullseye sysroot in 14.1 is the > reliance on <source_location>, which was easy to patch since the sysroot > has that header in the experimental subdirectory. > > On Tuesday, October 21, 2025 at 10:38:12 AM UTC-4 ClearScript Developers > wrote: > > Thanks, Jakob. A clarification: The system C++ library on Windows still > works. We were hoping to migrate our Windows build for consistency and > future proofing but couldn't make it happen. > > That is, we could build the V8 monolith but not our embedder, seemingly > due to some conflict between V8's libc++ and the Windows SDK somewhere deep > in the header files. > > On Tuesday, October 21, 2025 at 10:04:02 AM UTC-4 Jakob Kummerow wrote: > > On Tue, Oct 21, 2025 at 3:40 PM ClearScript Developers < > [email protected]> wrote: > > An update: We were able to get around these issues by migrating our Linux > builds to the bundled C++ library. > > Support for system C++ libraries seems to be broken in 14.1, at least for > Linux x64 and arm64. MacOS isn't affected but was easy to migrate, but we > haven't been able to migrate our Windows build. > > Question for the V8 team: Is the removal of use_custom_libcxx imminent? > > > We inherit that flag from Chromium's build configuration, so this would be > a question for [email protected]. > I only just found out that it is indeed marked deprecated since > https://chromium-review.googlesource.com/c/chromium/src/+/5963336. M138 > has passed, I don't know what the current plan is. The tracking bug > <https://issues.chromium.org/issues/372852985> doesn't look like lots of > activity recently. > > Personally I'd be fine with accepting (reasonably non-intrusive) > community-supported patches that keep the system-libc++ build alive for the > time being. > > > On Tuesday, October 14, 2025 at 1:42:29 PM UTC-4 ClearScript Developers > wrote: > > Greetings! > > While building the 14.1 branch tip on Linux, we're seeing compilation > errors. Our configuration: > > fatal_linker_warnings = false > is_cfi = false > is_component_build = false > is_debug = false > target_cpu = "x64" > use_custom_libcxx = false > use_thin_lto = false > v8_enable_fuzztest = false > v8_enable_pointer_compression = false > v8_enable_31bit_smis_on_64bit_arch = false > v8_enable_temporal_support = false > v8_monolithic = true > v8_use_external_startup_data = false > v8_target_cpu = "x64" > > The errors: > > FAILED: obj/build/modules/linux-x64/std_core/module.pcm > ../../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF > obj/build/modules/linux-x64/std_core/module.pcm.d -D_FILE_OFFSET_BITS=64 > -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_GNU_SOURCE > -DCR_CLANG_REVISION=\"llvmorg-21-init-16348-gbd809ffb-17\" > -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_NONE > -D_GLIBCXX_ASSERTIONS=1 -DCR_SYSROOT_KEY=20250129T203412Z-1 -DUSE_UDEV > -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_OZONE=1 -DNDEBUG -DNVALGRIND > -DDYNAMIC_ANNOTATIONS_ENABLED=0 -D_LIBCPP_BUILDING_LIBRARY -I../../.. -Igen > -fno-implicit-module-maps -fno-delete-null-pointer-checks > -fno-strict-overflow -fno-ident -fno-math-errno -fno-strict-aliasing > -fstack-protector -funwind-tables -fPIC -pthread -fcolor-diagnostics > -fmerge-all-constants -fno-sized-deallocation > -fcrash-diagnostics-dir=../../../tools/clang/crashreports -mllvm > -instcombine-lower-dbg-declare=0 -mllvm > -split-threshold-for-reg-with-hint=0 -ffp-contract=off > -Wa,--crel,--allow-experimental-crel --target=x86_64-unknown-linux-gnu > -msse3 -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= > -D__TIMESTAMP__= -ffile-compilation-dir=. -no-canonical-prefixes -Xclang > -fmodule-file-home-is-cwd -ftrivial-auto-var-init=pattern -O2 > -fdata-sections -ffunction-sections -fno-unique-section-names > -fno-omit-frame-pointer -g0 -fvisibility=hidden -Wheader-hygiene > -Wstring-conversion -Wtautological-overlap-compare -Xclang -add-plugin > -Xclang find-bad-constructs -Xclang -plugin-arg-find-bad-constructs -Xclang > check-stack-allocated -Xclang -plugin-arg-find-bad-constructs -Xclang > check-ipc -Xclang -add-plugin -Xclang raw-ptr-plugin -Xclang > -plugin-arg-raw-ptr-plugin -Xclang check-raw-ptr-to-stack-allocated -Xclang > -plugin-arg-raw-ptr-plugin -Xclang > disable-check-raw-ptr-to-stack-allocated-error -Xclang > -plugin-arg-raw-ptr-plugin -Xclang > raw-ptr-exclude-path=../../../third_party/dawn/ -Xclang > -plugin-arg-raw-ptr-plugin -Xclang > raw-ptr-exclude-path=../../../build/config/clang/chrome/test/fuzzing/webidl_fuzzing/ > > -fstrict-aliasing -Wundef -fPIC -Wall -Wno-unused-variable > -Wno-c++11-narrowing -Wno-unused-but-set-variable > -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi > -Wloop-analysis -Wno-unneeded-internal-declaration -Wno-cast-function-type > -Wno-thread-safety-reference-return -Wno-nontrivial-memcall -Werror > -Wno-exit-time-destructors -std=c++20 -Wno-trigraphs > -gsimple-template-names -fno-exceptions -fno-rtti > --sysroot=../../../build/linux/debian_bullseye_amd64-sysroot > -fvisibility-inlines-hidden -fbuiltin-module-map > -fmodule-map-file=gen/third_party/libc++/src/include/module.modulemap > -fmodule-map-file=../../../build/modules/linux-x64/module.modulemap > -std=c++20 -Wno-invalid-offsetof -Wenum-compare-conditional > -Wno-nullability-completeness > -fmodule-map-file=gen/third_party/libc++/src/include/module.modulemap > -fbuiltin-module-map > -fmodule-map-file=../../../build/modules/linux-x64/module.modulemap > -fmodule-file=obj/build/modules/linux-x64/_Builtin_stdarg/module.pcm > -fmodule-file=obj/build/modules/linux-x64/_Builtin_stddef/module.pcm > -fmodule-file=obj/build/modules/linux-x64/_Builtin_stdint/module.pcm > -fmodule-file=obj/build/modules/linux-x64/sys_stage1/module.pcm > -fmodule-name=std_core -c -x c++ -Xclang -emit-module > gen/third_party/libc++/src/include/module.modulemap -o > obj/build/modules/linux-x64/std_core/module.pcm > While building module 'std_core': > In file included from <module-includes>:1: > gen/third_party/libc++/src/include/__cstddef/byte.h:12:10: fatal error: > '__config' file not found > 12 | #include <__config> > | ^~~~~~~~~~ > 1 error generated. > [1116/3269] CXX_MODULE obj/build/modules/linux-x64/std_ctype_h/module.pcm > FAILED: obj/build/modules/linux-x64/std_ctype_h/module.pcm > ../../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF > obj/build/modules/linux-x64/std_ctype_h/module.pcm.d -D_FILE_OFFSET_BITS=64 > -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_GNU_SOURCE > -DCR_CLANG_REVISION=\"llvmorg-21-init-16348-gbd809ffb-17\" > -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_NONE > -D_GLIBCXX_ASSERTIONS=1 -DCR_SYSROOT_KEY=20250129T203412Z-1 -DUSE_UDEV > -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_OZONE=1 -DNDEBUG -DNVALGRIND > -DDYNAMIC_ANNOTATIONS_ENABLED=0 -D_LIBCPP_BUILDING_LIBRARY -I../../.. -Igen > -fno-implicit-module-maps -fno-delete-null-pointer-checks > -fno-strict-overflow -fno-ident -fno-math-errno -fno-strict-aliasing > -fstack-protector -funwind-tables -fPIC -pthread -fcolor-diagnostics > -fmerge-all-constants -fno-sized-deallocation > -fcrash-diagnostics-dir=../../../tools/clang/crashreports -mllvm > -instcombine-lower-dbg-declare=0 -mllvm > -split-threshold-for-reg-with-hint=0 -ffp-contract=off > -Wa,--crel,--allow-experimental-crel --target=x86_64-unknown-linux-gnu > -msse3 -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= > -D__TIMESTAMP__= -ffile-compilation-dir=. -no-canonical-prefixes -Xclang > -fmodule-file-home-is-cwd -ftrivial-auto-var-init=pattern -O2 > -fdata-sections -ffunction-sections -fno-unique-section-names > -fno-omit-frame-pointer -g0 -fvisibility=hidden -Wheader-hygiene > -Wstring-conversion -Wtautological-overlap-compare -Xclang -add-plugin > -Xclang find-bad-constructs -Xclang -plugin-arg-find-bad-constructs -Xclang > check-stack-allocated -Xclang -plugin-arg-find-bad-constructs -Xclang > check-ipc -Xclang -add-plugin -Xclang raw-ptr-plugin -Xclang > -plugin-arg-raw-ptr-plugin -Xclang check-raw-ptr-to-stack-allocated -Xclang > -plugin-arg-raw-ptr-plugin -Xclang > disable-check-raw-ptr-to-stack-allocated-error -Xclang > -plugin-arg-raw-ptr-plugin -Xclang > raw-ptr-exclude-path=../../../third_party/dawn/ -Xclang > -plugin-arg-raw-ptr-plugin -Xclang > raw-ptr-exclude-path=../../../build/config/clang/chrome/test/fuzzing/webidl_fuzzing/ > > -fstrict-aliasing -Wundef -fPIC -Wall -Wno-unused-variable > -Wno-c++11-narrowing -Wno-unused-but-set-variable > -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi > -Wloop-analysis -Wno-unneeded-internal-declaration -Wno-cast-function-type > -Wno-thread-safety-reference-return -Wno-nontrivial-memcall -Werror > -Wno-exit-time-destructors -std=c++20 -Wno-trigraphs > -gsimple-template-names -fno-exceptions -fno-rtti > --sysroot=../../../build/linux/debian_bullseye_amd64-sysroot > -fvisibility-inlines-hidden -fbuiltin-module-map > -fmodule-map-file=gen/third_party/libc++/src/include/module.modulemap > -fmodule-map-file=../../../build/modules/linux-x64/module.modulemap > -std=c++20 -Wno-invalid-offsetof -Wenum-compare-conditional > -Wno-nullability-completeness > -fmodule-map-file=gen/third_party/libc++/src/include/module.modulemap > -fmodule-map-file=../../../build/modules/linux-x64/module.modulemap > -fbuiltin-module-map > -fmodule-file=obj/build/modules/linux-x64/_Builtin_stdarg/module.pcm > -fmodule-file=obj/build/modules/linux-x64/_Builtin_stddef/module.pcm > -fmodule-file=obj/build/modules/linux-x64/sys_stage1/module.pcm > -fmodule-name=std_ctype_h -c -x c++ -Xclang -emit-module > gen/third_party/libc++/src/include/module.modulemap -o > obj/build/modules/linux-x64/std_ctype_h/module.pcm > While building module 'std_ctype_h': > In file included from <module-includes>:1: > gen/third_party/libc++/src/include/ctype.h:35:12: error: '__config' file > not found with <angled> include; use "quotes" instead > 35 | # include <__config> > | ^ > While building module 'std_ctype_h': > In file included from <module-includes>:1: > In file included from gen/third_party/libc++/src/include/ctype.h:35: > gen/third_party/libc++/src/include/__config:13:10: error: '__config_site' > file not found with <angled> include; use "quotes" instead > 13 | #include <__config_site> > | ^ > gen/third_party/libc++/src/include/__config:14:10: error: > '__configuration/abi.h' file not found with <angled> include; use "quotes" > instead > 14 | #include <__configuration/abi.h> > | ^ > While building module 'std_ctype_h': > In file included from <module-includes>:1: > In file included from gen/third_party/libc++/src/include/ctype.h:35: > In file included from gen/third_party/libc++/src/include/__config:14: > gen/third_party/libc++/src/include/__configuration/abi.h:13:10: fatal > error: '__config_site' file not found > 13 | #include <__config_site> > | ^~~~~~~~~~~~~~~ > 4 errors generated. > > Full log attached. Can someone suggest a solution? > > -- > > -- -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/v8-dev/b6879b54-cf6b-4fc0-8d08-25fecd99de26n%40googlegroups.com.
