https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101638
Bug ID: 101638 Summary: ICE with -Wtraditional Product: gcc Version: 11.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: preprocessor Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Target Milestone: --- With recent glibc head includes > cat t.c #include <security/pam_modules.h> #include <stdlib.h> ICEs preprocessing the above with -Wtraditional > gcc t.c -c -Wtraditional In file included from /usr/include/features.h:488, from /usr/include/bits/libc-header-start.h:33, from /usr/include/stdlib.h:25, from t.c:2: /usr/include/sys/cdefs.h:1: internal compiler error: Segmentation fault 1 | /* Copyright (C) 1992-2021 Free Software Foundation, Inc. | 0xdef92b internal_error(char const*, ...) ???:0 0xddd540 cpp_sys_macro_p(cpp_reader*) ???:0 0xf0f026 _cpp_parse_expr ???:0 0xf0e452 _cpp_handle_directive ???:0 0xf09324 _cpp_lex_token ???:0 0xf21485 c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int) ???:0 0x1417068 c_parse_file() ???:0 0x1414d1b c_common_parse_file() ???:0 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://bugs.opensuse.org/> for instructions.