Linker log spam when building on Mac

[eseidel]

I'm on 85d09eb.

eseidel@erics-mbp sdk % ./tools/build.py --no-goma --mode release --arch arm64 most
Generating Xcode projects took 25ms
Done. Made 396 targets from 116 files in 648ms
buildtools/ninja/ninja -C xcodebuild/ReleaseARM64 most
ninja: Entering directory `xcodebuild/ReleaseARM64'
[302/782] LINK ./dart_precompiled_runtime
ld64.lld: warning: directory not found for option -L/usr/local/lib
[345/782] LINK ./dart_precompiled_runtime_product
ld64.lld: warning: directory not found for option -L/usr/local/lib
[409/782] LINK ./gen_snapshot
ld64.lld: warning: directory not found for option -L/usr/local/lib
[466/782] LINK ./gen_snapshot_product
ld64.lld: warning: directory not found for option -L/usr/local/lib
[575/782] LINK ./dart
ld64.lld: warning: directory not found for option -L/usr/local/lib
[721/782] LINK ./run_vm_tests
ld64.lld: warning: directory not found for option -L/usr/local/lib
[782/782] STAMP obj/most.stamp
The build took 153.113 seconds

I haven't yet figured out where the flag is coming from, but I will and plan to post a patch to fix if someone doesn't beat me to it.

[eseidel]

I'm told that this is a hard-coded path in clang, and the fix is to just create an empty directory in /usr/lib/local.

Not sure if this warrants an update to https://github.com/dart-lang/sdk/wiki/Building or not? FYI @mraleph

[gautam1103]

Hey I want contribute , if it is not resolved yet kindly reply me ASAP.

[mraleph]

@eseidel I can't reproduce this. What XCode version are you using? Can you delete one of the binaries (e.g. dart_precompiled_runtime) and then run buildtools/ninja/ninja -v -C xcodebuild/ReleaseARM64 dart_precompiled_runtime. I am curious to see the command line.

[eseidel]

on 86c1825

It only reproduces if you don't have /usr/local/lib, which I made an empty one to make it go away. If I delete my empty one (yours may not be empty), then it comes back:

eseidel@erics-mbp sdk % ls /usr/local/lib
eseidel@erics-mbp sdk % sudo rmdir /usr/local/lib
Password:
eseidel@erics-mbp sdk % ls /usr/local/lib        
ls: /usr/local/lib: No such file or directory
eseidel@erics-mbp sdk % ./tools/build.py --no-goma --mode release --arch arm64 dart_precompiled_runtime
Generating Xcode projects took 24ms
Done. Made 396 targets from 116 files in 899ms
buildtools/ninja/ninja -C xcodebuild/ReleaseARM64 dart_precompiled_runtime
ninja: Entering directory `xcodebuild/ReleaseARM64'
[411/411] LINK ./dart_precompiled_runtime
ld64.lld: warning: directory not found for option -L/usr/local/lib
The build took 21.244 seconds

[eseidel]

Just rming the binary doesn't repro:

eseidel@erics-mbp sdk % rm xcodebuild/ReleaseARM64/dart_precompiled_runtime
eseidel@erics-mbp sdk % buildtools/ninja/ninja -v -C xcodebuild/ReleaseARM64 dart_precompiled_runtime  
ninja: Entering directory `xcodebuild/ReleaseARM64'
[1/1] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Wl,-add_empty_section,__CUSTOM,__space_for_note -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./dart_precompiled_runtime -Wl,-filelist,./dart_precompiled_runtime.rsp  -ldl -lpthread -framework CoreFoundation -framework Security -framework Foundation -framework CoreServices && strip -x -o ./exe.stripped/dart_precompiled_runtime ./dart_precompiled_runtime

[eseidel]

This repo'd:

eseidel@erics-mbp sdk % rm xcodebuild/ReleaseARM64/gen_*
eseidel@erics-mbp sdk % ./tools/build.py --no-goma --mode release --arch arm64 runtime
Generating Xcode projects took 24ms
Done. Made 396 targets from 116 files in 495ms
buildtools/ninja/ninja -C xcodebuild/ReleaseARM64 runtime
ninja: Entering directory `xcodebuild/ReleaseARM64'
[1/41] LINK ./gen_snapshot
ld64.lld: warning: directory not found for option -L/usr/local/lib
[21/41] LINK ./dart
ld64.lld: warning: directory not found for option -L/usr/local/lib
[22/41] LINK ./run_vm_tests
ld64.lld: warning: directory not found for option -L/usr/local/lib
[41/41] STAMP obj/runtime.stamp
The build took 11.130 seconds

[eseidel]

But doing the same with ninja directly did not!? So confused.

eseidel@erics-mbp sdk % rm xcodebuild/ReleaseARM64/gen_*                              
eseidel@erics-mbp sdk % buildtools/ninja/ninja  -v -C xcodebuild/ReleaseARM64 runtime
ninja: Entering directory `xcodebuild/ReleaseARM64'
[1/41] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./gen_snapshot -Wl,-filelist,./gen_snapshot.rsp  -ldl -lpthread -framework CoreFoundation -framework CoreServices -framework Foundation && strip -x -o ./exe.stripped/gen_snapshot ./gen_snapshot
[2/41] python3 ../../build/gn_run_binary.py compiled_action gen_snapshot --sound-null-safety --deterministic --snapshot_kind=core --vm_snapshot_data=gen/runtime/bin/vm_snapshot_data.bin --vm_snapshot_instructions=gen/runtime/bin/vm_snapshot_instructions.bin --isolate_snapshot_data=gen/runtime/bin/isolate_snapshot_data.bin --isolate_snapshot_instructions=gen/runtime/bin/isolate_snapshot_instructions.bin vm_platform_strong_stripped.dill
[3/41] touch obj/runtime/bin/generate_snapshot_bin.stamp
[4/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/vm_snapshot_instructions.bin --output gen/runtime/bin/vm_snapshot_instructions.bin.S --symbol_name kDartVmSnapshotInstructions --target_os mac --executable --incbin
[5/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/isolate_snapshot_instructions.bin --output gen/runtime/bin/isolate_snapshot_instructions.bin.S --symbol_name kDartCoreIsolateSnapshotInstructions --target_os mac --executable --incbin
[6/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/vm_snapshot_data.bin --output gen/runtime/bin/vm_snapshot_data.bin.S --symbol_name kDartVmSnapshotData --target_os mac --incbin
[7/41] touch obj/runtime/bin/vm_snapshot_instructions_linkable.stamp
[8/41] touch obj/runtime/bin/isolate_snapshot_instructions_linkable.stamp
[9/41] touch obj/runtime/bin/vm_snapshot_data_linkable.stamp
[10/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/isolate_snapshot_data.bin --output gen/runtime/bin/isolate_snapshot_data.bin.S --symbol_name kDartCoreIsolateSnapshotData --target_os mac --incbin
[11/41] touch obj/runtime/bin/isolate_snapshot_data_linkable.stamp
[12/41] touch obj/runtime/bin/dart.inputdeps.stamp
[13/41] touch obj/runtime/bin/dart_snapshot_cc.inputdeps.stamp
[14/41] touch obj/runtime/bin/ffi_test_functions.inputdeps.stamp
[15/41] touch obj/runtime/bin/run_vm_tests.inputdeps.stamp
[16/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_instructions.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/isolate_snapshot_instructions.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_instructions.bin.o
[17/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_data.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/vm_snapshot_data.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_data.bin.o
[18/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_instructions.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/vm_snapshot_instructions.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_instructions.bin.o
[19/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_data.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/isolate_snapshot_data.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_data.bin.o
[20/41] touch obj/runtime/bin/dart_snapshot_cc.stamp
[21/41] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./dart -Wl,-filelist,./dart.rsp  -ldl -lpthread -framework CoreFoundation -framework Security -framework Foundation -framework CoreServices && strip -x -o ./exe.stripped/dart ./dart
[22/41] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./run_vm_tests -Wl,-filelist,./run_vm_tests.rsp  -ldl -lpthread -framework CoreFoundation -framework Security -framework Foundation -framework CoreServices && strip -x -o ./exe.stripped/run_vm_tests ./run_vm_tests
[23/41] python3 ../../build/gn_run_binary.py compiled_action dart --deterministic --packages=../../.dart_tool/package_config.json --snapshot=gen/dds.dart.snapshot --snapshot-depfile=gen/dds.dart.snapshot.d --snapshot-kind=app-jit --dfe=../../utils/dds/NEVER_LOADED gen/utils/dds/generate_dds_snapshot.dart.dill
[24/41] touch obj/utils/dds/generate_dds_snapshot.stamp
[25/41] ln -f gen/dds.dart.snapshot dds.dart.snapshot 2>/dev/null || (rm -rf dds.dart.snapshot && cp -af gen/dds.dart.snapshot dds.dart.snapshot)
[26/41] touch obj/utils/dds/copy_dds_snapshot.stamp
[27/41] touch obj/utils/dds/dds.stamp
[28/41] python3 ../../build/gn_run_binary.py compiled_action ../../tools/sdks/dart-sdk/bin/dart -Dsdk_hash=86c18251b4 --dfe=../../tools/sdks/dart-sdk/bin/snapshots/kernel-service.dart.snapshot gen/utils/gen_kernel/bootstrap_gen_kernel.dill --packages=../../.dart_tool/package_config.json --platform=vm_platform_strong.dill --no-aot --no-embed-sources --no-link-platform --output=gen/utils/dartdev/generate_dartdev_snapshot.dart.dill --depfile=gen/utils/dartdev/generate_dartdev_snapshot.dart.dill.d -Dsdk_hash=86c18251b4 -Ddart.vm.product=false ../../pkg/dartdev/bin/dartdev.dart
[29/41] touch obj/utils/dartdev/generate_dartdev_snapshot_dill.stamp
[30/41] python3 ../../build/gn_run_binary.py compiled_action ../../tools/sdks/dart-sdk/bin/dart -Dsdk_hash=86c18251b4 --dfe=../../tools/sdks/dart-sdk/bin/snapshots/kernel-service.dart.snapshot gen/utils/gen_kernel/bootstrap_gen_kernel.dill --packages=../../.dart_tool/package_config.json --platform=vm_platform_strong.dill --no-aot --no-embed-sources --no-link-platform --output=gen/utils/dartdev/generate_dartdev_kernel.dart.dill --depfile=gen/utils/dartdev/generate_dartdev_kernel.dart.dill.d -Dsdk_hash=86c18251b4 -Ddart.vm.product=false ../../pkg/dartdev/bin/dartdev.dart
[31/41] touch obj/utils/dartdev/generate_dartdev_kernel_dill.stamp
[32/41] ln -f gen/utils/dartdev/generate_dartdev_kernel.dart.dill gen/dartdev.dill 2>/dev/null || (rm -rf gen/dartdev.dill && cp -af gen/utils/dartdev/generate_dartdev_kernel.dart.dill gen/dartdev.dill)
[33/41] touch obj/utils/dartdev/generate_dartdev_kernel.stamp
[34/41] ln -f gen/dartdev.dill dartdev.dill 2>/dev/null || (rm -rf dartdev.dill && cp -af gen/dartdev.dill dartdev.dill)
[35/41] touch obj/utils/dartdev/copy_dartdev_kernel.stamp
[36/41] python3 ../../build/gn_run_binary.py compiled_action dart --deterministic --packages=../../.dart_tool/package_config.json --snapshot=gen/dartdev.dart.snapshot --snapshot-depfile=gen/dartdev.dart.snapshot.d --sound-null-safety --snapshot-kind=app-jit --dfe=../../utils/dartdev/NEVER_LOADED gen/utils/dartdev/generate_dartdev_snapshot.dart.dill --help
[37/41] touch obj/utils/dartdev/generate_dartdev_snapshot.stamp
[38/41] ln -f gen/dartdev.dart.snapshot dartdev.dart.snapshot 2>/dev/null || (rm -rf dartdev.dart.snapshot && cp -af gen/dartdev.dart.snapshot dartdev.dart.snapshot)
[39/41] touch obj/utils/dartdev/copy_dartdev_snapshot.stamp
[40/41] touch obj/utils/dartdev/dartdev.stamp
[41/41] touch obj/runtime.stamp

[mraleph]

@eseidel can you also run build.py with -v? We can then try to compare the output when it repros.

[eseidel]

Repro:

eseidel@erics-mbp sdk % rm xcodebuild/ReleaseARM64/gen_*                             
eseidel@erics-mbp sdk % ./tools/build.py --no-goma --mode release --arch arm64 runtime -v
gn gen --check in xcodebuild/ReleaseARM64
Generating Xcode projects took 22ms
Done. Made 396 targets from 116 files in 492ms
buildtools/ninja/ninja -C xcodebuild/ReleaseARM64 -v runtime
ninja: Entering directory `xcodebuild/ReleaseARM64'
[1/41] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./gen_snapshot -Wl,-filelist,./gen_snapshot.rsp  -ldl -lpthread -framework CoreFoundation -framework CoreServices -framework Foundation && strip -x -o ./exe.stripped/gen_snapshot ./gen_snapshot
ld64.lld: warning: directory not found for option -L/usr/local/lib
[2/41] python3 ../../build/gn_run_binary.py compiled_action gen_snapshot --sound-null-safety --deterministic --snapshot_kind=core --vm_snapshot_data=gen/runtime/bin/vm_snapshot_data.bin --vm_snapshot_instructions=gen/runtime/bin/vm_snapshot_instructions.bin --isolate_snapshot_data=gen/runtime/bin/isolate_snapshot_data.bin --isolate_snapshot_instructions=gen/runtime/bin/isolate_snapshot_instructions.bin vm_platform_strong_stripped.dill
[3/41] touch obj/runtime/bin/generate_snapshot_bin.stamp
[4/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/isolate_snapshot_instructions.bin --output gen/runtime/bin/isolate_snapshot_instructions.bin.S --symbol_name kDartCoreIsolateSnapshotInstructions --target_os mac --executable --incbin
[5/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/vm_snapshot_instructions.bin --output gen/runtime/bin/vm_snapshot_instructions.bin.S --symbol_name kDartVmSnapshotInstructions --target_os mac --executable --incbin
[6/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/vm_snapshot_data.bin --output gen/runtime/bin/vm_snapshot_data.bin.S --symbol_name kDartVmSnapshotData --target_os mac --incbin
[7/41] touch obj/runtime/bin/vm_snapshot_instructions_linkable.stamp
[8/41] touch obj/runtime/bin/vm_snapshot_data_linkable.stamp
[9/41] touch obj/runtime/bin/isolate_snapshot_instructions_linkable.stamp
[10/41] python3 ../../runtime/tools/bin_to_assembly.py --input gen/runtime/bin/isolate_snapshot_data.bin --output gen/runtime/bin/isolate_snapshot_data.bin.S --symbol_name kDartCoreIsolateSnapshotData --target_os mac --incbin
[11/41] touch obj/runtime/bin/isolate_snapshot_data_linkable.stamp
[12/41] touch obj/runtime/bin/dart.inputdeps.stamp
[13/41] touch obj/runtime/bin/dart_snapshot_cc.inputdeps.stamp
[14/41] touch obj/runtime/bin/run_vm_tests.inputdeps.stamp
[15/41] touch obj/runtime/bin/ffi_test_functions.inputdeps.stamp
[16/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_instructions.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/isolate_snapshot_instructions.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_instructions.bin.o
[17/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_instructions.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/vm_snapshot_instructions.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_instructions.bin.o
[18/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_data.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/vm_snapshot_data.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.vm_snapshot_data.bin.o
[19/41] ../../buildtools/mac-arm64/clang/bin/clang -MMD -MF obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_data.bin.o.d -DTOOLCHAIN_VERSION=pU-dZi3IkAPM8t7_AA8Lu3UzRj1R7ryenNcdn1trZ3oC -DNDEBUG -I../.. -Igen -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -arch arm64 -fPIE -fcolor-diagnostics -std=c99 -c gen/runtime/bin/isolate_snapshot_data.bin.S -o obj/BUILD_DIR/gen/runtime/bin/dart_snapshot_cc.isolate_snapshot_data.bin.o
[20/41] touch obj/runtime/bin/dart_snapshot_cc.stamp
[21/41] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./dart -Wl,-filelist,./dart.rsp  -ldl -lpthread -framework CoreFoundation -framework Security -framework Foundation -framework CoreServices && strip -x -o ./exe.stripped/dart ./dart
ld64.lld: warning: directory not found for option -L/usr/local/lib
[22/41] ../../buildtools/mac-arm64/clang/bin/clang++ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=10.14  -rdynamic -arch arm64 -fPIE -nostdlib++ ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -Wl,-dead_strip -Wl,-search_paths_first -L. -undefined dynamic_lookup -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/../../.. -Wl,-pie -Xlinker -rpath -Xlinker @executable_path/Frameworks -o ./run_vm_tests -Wl,-filelist,./run_vm_tests.rsp  -ldl -lpthread -framework CoreFoundation -framework Security -framework Foundation -framework CoreServices && strip -x -o ./exe.stripped/run_vm_tests ./run_vm_tests
ld64.lld: warning: directory not found for option -L/usr/local/lib
[23/41] python3 ../../build/gn_run_binary.py compiled_action dart --deterministic --packages=../../.dart_tool/package_config.json --snapshot=gen/dds.dart.snapshot --snapshot-depfile=gen/dds.dart.snapshot.d --snapshot-kind=app-jit --dfe=../../utils/dds/NEVER_LOADED gen/utils/dds/generate_dds_snapshot.dart.dill
[24/41] touch obj/utils/dds/generate_dds_snapshot.stamp
[25/41] ln -f gen/dds.dart.snapshot dds.dart.snapshot 2>/dev/null || (rm -rf dds.dart.snapshot && cp -af gen/dds.dart.snapshot dds.dart.snapshot)
[26/41] touch obj/utils/dds/copy_dds_snapshot.stamp
[27/41] touch obj/utils/dds/dds.stamp
[28/41] python3 ../../build/gn_run_binary.py compiled_action ../../tools/sdks/dart-sdk/bin/dart -Dsdk_hash=86c18251b4 --dfe=../../tools/sdks/dart-sdk/bin/snapshots/kernel-service.dart.snapshot gen/utils/gen_kernel/bootstrap_gen_kernel.dill --packages=../../.dart_tool/package_config.json --platform=vm_platform_strong.dill --no-aot --no-embed-sources --no-link-platform --output=gen/utils/dartdev/generate_dartdev_kernel.dart.dill --depfile=gen/utils/dartdev/generate_dartdev_kernel.dart.dill.d -Dsdk_hash=86c18251b4 -Ddart.vm.product=false ../../pkg/dartdev/bin/dartdev.dart
[29/41] touch obj/utils/dartdev/generate_dartdev_kernel_dill.stamp
[30/41] python3 ../../build/gn_run_binary.py compiled_action ../../tools/sdks/dart-sdk/bin/dart -Dsdk_hash=86c18251b4 --dfe=../../tools/sdks/dart-sdk/bin/snapshots/kernel-service.dart.snapshot gen/utils/gen_kernel/bootstrap_gen_kernel.dill --packages=../../.dart_tool/package_config.json --platform=vm_platform_strong.dill --no-aot --no-embed-sources --no-link-platform --output=gen/utils/dartdev/generate_dartdev_snapshot.dart.dill --depfile=gen/utils/dartdev/generate_dartdev_snapshot.dart.dill.d -Dsdk_hash=86c18251b4 -Ddart.vm.product=false ../../pkg/dartdev/bin/dartdev.dart
[31/41] ln -f gen/utils/dartdev/generate_dartdev_kernel.dart.dill gen/dartdev.dill 2>/dev/null || (rm -rf gen/dartdev.dill && cp -af gen/utils/dartdev/generate_dartdev_kernel.dart.dill gen/dartdev.dill)
[32/41] touch obj/utils/dartdev/generate_dartdev_snapshot_dill.stamp
[33/41] touch obj/utils/dartdev/generate_dartdev_kernel.stamp
[34/41] ln -f gen/dartdev.dill dartdev.dill 2>/dev/null || (rm -rf dartdev.dill && cp -af gen/dartdev.dill dartdev.dill)
[35/41] touch obj/utils/dartdev/copy_dartdev_kernel.stamp
[36/41] python3 ../../build/gn_run_binary.py compiled_action dart --deterministic --packages=../../.dart_tool/package_config.json --snapshot=gen/dartdev.dart.snapshot --snapshot-depfile=gen/dartdev.dart.snapshot.d --sound-null-safety --snapshot-kind=app-jit --dfe=../../utils/dartdev/NEVER_LOADED gen/utils/dartdev/generate_dartdev_snapshot.dart.dill --help
[37/41] touch obj/utils/dartdev/generate_dartdev_snapshot.stamp
[38/41] ln -f gen/dartdev.dart.snapshot dartdev.dart.snapshot 2>/dev/null || (rm -rf dartdev.dart.snapshot && cp -af gen/dartdev.dart.snapshot dartdev.dart.snapshot)
[39/41] touch obj/utils/dartdev/copy_dartdev_snapshot.stamp
[40/41] touch obj/utils/dartdev/dartdev.stamp
[41/41] touch obj/runtime.stamp
The build took 11.954 seconds

[mraleph]

Ooops, I do actually have /usr/local/lib, but the message does not repro for me even if I remove it temporarily.

I have looked at the LLVM source code and I am puzzled why this error happens. /usr/local/lib is indeed hardcoded path but it should not trigger the warning in the version of the toolchain we are using:

https://github.com/llvm/llvm-project/blob/e8cfbfd05a951b85f80156dffc8eeecb34c7271c/lld/MachO/Driver.cpp#L183-L190

There was a time when it would trigger such a warning but it seems to be have been fixed by llvm/llvm-project@ebac710 which is a three year old commit.

Confusing stuff.

Could you try applying the following patch and reproducing again:

diff --git a/build/toolchain/mac/BUILD.gn b/build/toolchain/mac/BUILD.gn
index 48b6bb03163..3c7478494cc 100644
--- a/build/toolchain/mac/BUILD.gn
+++ b/build/toolchain/mac/BUILD.gn
@@ -180,7 +180,7 @@ template("mac_toolchain") {
         stripped_outfile = "{{root_out_dir}}/exe.stripped/$exename"
       }
 
-      command = "$ld $sysroot_flags $toolchain_flags {{ldflags}} -Xlinker -rpath -Xlinker @executable_path/Frameworks -o $outfile -Wl,-filelist,$rspfile {{solibs}} {{libs}} {{frameworks}}"
+      command = "$ld -v $sysroot_flags $toolchain_flags {{ldflags}} -Xlinker -rpath -Xlinker @executable_path/Frameworks -o $outfile -Wl,-filelist,$rspfile {{solibs}} {{libs}} {{frameworks}}"
       if (defined(invoker.strip)) {
         strip = invoker.strip
         strip_command = "${strip} -x -o $stripped_outfile $outfile"

We should see which linker is invoked and all command line arguments.

[eseidel]

Here's one:

[52/1057] LINK ./dart
Fuchsia clang version 17.0.0 (https://llvm.googlesource.com/llvm-project 5344d8e10bb7d8672d4bfae8adb010465470d51b)
Target: arm64-apple-darwin22.3.0
Thread model: posix
InstalledDir: /Users/eseidel/Documents/GitHub/dart-sdk/sdk/xcodebuild/DebugARM64/../../buildtools/mac-arm64/clang/bin
 "/Users/eseidel/Documents/GitHub/dart-sdk/sdk/xcodebuild/DebugARM64/../../buildtools/mac-arm64/clang/bin/ld64.lld" -demangle -export_dynamic -dynamic -arch arm64 -platform_version macos 11.0.0 13.3 -pie -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -undefined dynamic_lookup -undefined dynamic_lookup -o ./dart -L. -L/usr/local/lib ../../buildtools/mac-arm64/clang/bin/../lib/libc++.a -search_paths_first -rpath @loader_path/. -rpath @loader_path/../../.. -pie -rpath @executable_path/Frameworks -filelist ./dart.rsp -ldl -lpthread -framework CoreFoundation -framework Security -framework Foundation -framework CoreServices -lSystem /Users/eseidel/Documents/GitHub/dart-sdk/sdk/buildtools/mac-arm64/clang/lib/clang/17/lib/darwin/libclang_rt.osx.a
ld64.lld: warning: directory not found for option -L/usr/local/lib

[mraleph]

@eseidel ah-ha. There is an explicit -L/use/local/lib snuck from somewhere. Now we need to figure out where that comes from. I assume your checkout is otherwise clean and no changes in the buildroot / toolchain configuration files? Can you check your environment variables just in case?

[eseidel]

Yes, that's from a clean checkout of 86c1825

[eseidel]

I (unfortunately) have brew installed, which also could have messed with things somehow?