https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112397
Bug ID: 112397 Summary: Two persistent libstdc++ test failures on x86_64-apple-darwin Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: fxcoudert at gcc dot gnu.org Target Milestone: --- FAIL: 17_intro/static.cc -std=gnu++17 (test for excess errors) FAIL: 20_util/to_chars/4.cc -std=gnu++17 (test for excess errors) The both have the same linker warning: ld: warning: direct access in function 'operator new[](unsigned long, std::nothrow_t const&) (.cold)' from file '/Users/fx/ibin-2023 1105/x86_64-apple-darwin21/./libstdc++-v3/src/.libs/libstdc++.a(new_opvnt.o)' to global weak symbol 'operator new[](unsigned long, s td::nothrow_t const&)' from file '/Users/fx/ibin-20231105/x86_64-apple-darwin21/./libstdc++-v3/src/.libs/libstdc++.a(new_opvnt.o)' m eans the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with diff erent visibility settings. ld: warning: direct access in function 'operator new[](unsigned long, std::nothrow_t const&) (.cold)' from file '/Users/fx/ibin-20231105/x86_64-apple-darwin21/./libstdc++-v3/src/.libs/libstdc++.a(new_opvnt.o)' to global weak symbol 'operator new[](unsigned long, std::nothrow_t const&)' from file '/Users/fx/ibin-20231105/x86_64-apple-darwin21/./libstdc++-v3/src/.libs/libstdc++.a(new_opvnt.o)' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings. I am not sure what the "different visibility settings" are, or if it's just a red herring, but the testcase is compiled with: Executing on host: /Users/fx/ibin-20231105/./gcc/xg++ -shared-libgcc -B/Users/fx/ibin-20231105/./gcc -nostdinc++ -L/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/src -L/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/src/.libs -L/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/libsupc++/.libs -B/Users/fx/irun-20231105/x86_64-apple-darwin21/bin/ -B/Users/fx/irun-20231105/x86_64-apple-darwin21/lib/ -isystem /Users/fx/irun-20231105/x86_64-apple-darwin21/include -isystem /Users/fx/irun-20231105/x86_64-apple-darwin21/sys-include -fchecking=1 -B/Users/fx/ibin-20231105/x86_64-apple-darwin21/./libstdc++-v3/src/.libs -fmessage-length=0 -fno-show-column -ffunction-sections -fdata-sections -g -O2 -DLOCALEDIR="." -nostdinc++ -I/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/include/x86_64-apple-darwin21 -I/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/include -I/Users/fx/gcc-upstream/libstdc++-v3/libsupc++ -I/Users/fx/gcc-upstream/libstdc++-v3/include/backward -I/Users/fx/gcc-upstream/libstdc++-v3/testsuite/util /Users/fx/gcc-upstream/libstdc++-v3/testsuite/17_intro/static.cc -std=gnu++17 -static-libstdc++ -fdiagnostics-plain-output ./libtestc++.a -liconv -L/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/src/filesystem/.libs -L/Users/fx/ibin-20231105/x86_64-apple-darwin21/libstdc++-v3/src/experimental/.libs -lm -o ./static.exe (timeout = 360)