[...] alpha-unknown-linux-gnu-gcc -fno-strict-overflow -Wsign-compare -mieee -DNDEBUG -mieee -pipe -O2 -mcpu=ev4 -fwrapv -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I. -I./Include -I/usr/include/ncursesw -fPIC -DPy_BUILD_CORE_BUILTIN -c ./Modules/_stat.c -o Modules/_stat.o alpha-unknown-linux-gnu-gcc -fno-strict-overflow -Wsign-compare -mieee -DNDEBUG -mieee -pipe -O2 -mcpu=ev4 -fwrapv -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I. -I./Include -I/usr/include/ncursesw -fPIC -DPy_BUILD_CORE_BUILTIN -c ./Modules/symtablemodule.c -o Modules/symtablemodule.o alpha-unknown-linux-gnu-gcc -fno-strict-overflow -Wsign-compare -mieee -DNDEBUG -mieee -pipe -O2 -mcpu=ev4 -fwrapv -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I. -I./Include -I/usr/include/ncursesw -fPIC -DPy_BUILD_CORE_BUILTIN -c ./Modules/pwdmodule.c -o Modules/pwdmodule.o {standard input}: Assembler messages: {standard input}:1775: Error: duplicate !tlsgd!62 alpha-unknown-linux-gnu-gcc -c -fno-strict-overflow -Wsign-compare -mieee -DNDEBUG -mieee -pipe -O2 -mcpu=ev4 -fwrapv -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I. -I./Include -I/usr/include/ncursesw -fPIC -DPy_BUILD_CORE -o Programs/_freeze_module.o Programs/_freeze_module.c alpha-unknown-linux-gnu-gcc -c -fno-strict-overflow -Wsign-compare -mieee -DNDEBUG -mieee -pipe -O2 -mcpu=ev4 -fwrapv -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I. -I./Include -I/usr/include/ncursesw -fPIC -DPy_BUILD_CORE -o Modules/getpath_noop.o Modules/getpath_noop.c [...] make: *** [Makefile:2748: Python/dtoa.o] Error 1 make: *** Waiting for unfinished jobs.... [31;01m*[0m ERROR: dev-lang/python-3.12.4_p1::gentoo failed (compile phase): [31;01m*[0m emake failed
> {standard input}: Assembler messages: > {standard input}:1775: Error: duplicate !tlsgd!62 Isn't that a GCC bug? I honestly doubt Python carries any alpha assembly xP.
Right, it has to be a GCC bug. Please try to get preprocessed source (for dtoa).