[From nobody Thu May 14 21:25:46 2026 Received: (at maintonly) by bugs.debian.org; 13 Apr 2026 13:11:31 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-116.6 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,FOURLA,FROMDEVELOPER,FVGT_m_MULTI_ODD, HAS_PACKAGE,SPF_HELO_NONE,SPF_NONE,UNPARSEABLE_RELAY, USER_IN_DKIM_WELCOMELIST autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 41; hammy, 150; neutral, 135; spammy, 0. spammytokens: hammytokens:0.000-+--Hx-spam-relays-external:sk:stravin, 0.000-+--H*RT:sk:stravin, 0.000-+--Hx-spam-relays-external:311, 0.000-+--H*RT:311, 0.000-+--H*RT:108 Return-path: <ema@debian.org> Received: from stravinsky.debian.org ([2001:41b8:202:deb::311:108]:38676) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <ema@debian.org>) id 1wCH4d-002n59-1z for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:11:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Content-Transfer-Encoding:Content-Type :MIME-Version:Message-ID:Subject:To:From:Date:Reply-To:Cc:Content-ID: Content-Description:In-Reply-To:References; bh=J+HP/XP2Rsh6BN5F0l8m5zcRN4c9LjqH7X6gWJ5ZnDw=; b=nIjYTglTMUjhIJa3ruTolPaik1 BiPQi3UQOIMvr0ym4PX7Zxtzur6n5OxNkvk37J9SJTr/D81BAIWQe3l8twjdGzpViPRFiVR+N7RiU 4V34/u9p8A44zqfovibFg3/kHHsRRguFJ5YBUuykRLaZif7Y7ali+bnisU2r/NoR8sUC4Fn3hi3Ji x/jkViidpvIQ8QMtuXO8joRGEA2vQQV/LCYVl38mVnXH3rh4fWVnZ3VEr1ul+sRcdEXhOY9nQJIKf kYNhtuLFUOHve6C3+FIk8N5jSU9Zq02NGWQ0+SguRr2JjiW89uUFBHlPwi+OhmYNQ6CM4ZFRLPzSp Hv+Km2tg==; Received: from authenticated user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <ema@debian.org>) id 1wCH4b-00CJio-3D for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:11:30 +0000 Date: Mon, 13 Apr 2026 15:11:29 +0200 From: Emanuele Rocca <ema@debian.org> To: maintonly@bugs.debian.org Subject: systemc: ftbfs with GCC-16 Message-ID: <adzrgeLD3DH0p22w@ariel.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Debian-User: ema Delivered-To: maintonly@bugs.debian.org Package: src:systemc Version: 3.0.2-1 Severity: important Tags: sid forky ftbfs User: debian-gcc@lists.debian.org Usertags: ftbfs-gcc-16 Hi, systemc fails to build in a test rebuild on at least amd64 and arm64 with gcc-16/g++-16, but builds properly with gcc-15/g++-15. The severity of this report will be raised before the forky release. The full build log can be found at: https://people.debian.org/~ema/gcc-16-rebuilds/output-1/systemc_arm64.build.xz The last lines of the build log are at the end of this report. To build with GCC 16, either set CC=gcc-16 CXX=g++-16 explicitly, or install the gcc, g++, gfortran, ... packages from experimental. apt-get -t=experimental install g++ Common build failures include unused (but set) variables, array subscripts partly outside array bounds, and new/dropped symbols in Debian symbols files. For other C/C++ related build failures see the porting guide at http://gcc.gnu.org/gcc-16/porting_to.html Please only close this issue after double-checking that the package can be built correctly with GCC 16. Please do not reassign this bug to another package. If a fix in another package is required, then file a bug for the other package (or clone), and mark this bug as blocked by the bug in the other package. [...] • candidate 2: 'constexpr sc_core::sc_string_view::sc_string_view(const sc_core::sc_string_view&)' ../../src/sysc/utils/sc_string_view.h:44:7: 44 | class sc_string_view | ^~~~~~~~~~~~~~ • no known conversion for argument 1 from 'const char*' to 'const sc_core::sc_string_view&' • candidate 3: 'constexpr sc_core::sc_string_view::sc_string_view(sc_core::sc_string_view&&)' • no known conversion for argument 1 from 'const char*' to 'sc_core::sc_string_view&&' ../../src/sysc/utils/sc_string_view.h: In member function 'void sc_core::sc_zstring_view::swap(sc_core::sc_zstring_view&)': ../../src/sysc/utils/sc_string_view.h:97:18: error: 'swap' is not a member of 'sc_core::sc_zstring_view::base_type' {aka 'sc_core::sc_string_view'} 97 | { base_type::swap(s); } | ^~~~ ../../src/sysc/utils/sc_string_view.h: In member function 'const char* sc_core::sc_zstring_view::c_str() const': ../../src/sysc/utils/sc_string_view.h:100:14: error: 'data' was not declared in this scope 100 | { return data(); } | ^~~~ make[4]: *** [Makefile:1157: tracing/sc_wif_trace.lo] Error 1 make[4]: *** [Makefile:1157: datatypes/int/sc_uint_base.lo] Error 1 tracing/sc_vcd_trace.cpp: In function 'void sc_core::vcd_print_scopes(FILE*, std::vector<vcd_trace*>&)': tracing/sc_vcd_trace.cpp:1154:52: error: conversion from 'const char*' to non-scalar type 'sc_core::sc_string_view' requested 1154 | sc_string_view with_scopes_s = (with_scopes_p) ? with_scopes_p : ""; | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ tracing/sc_vcd_trace.cpp:1157:23: error: no match for 'operator==' (operand types are 'sc_core::sc_string_view' and 'const char [8]') 1157 | if (with_scopes_s == "DISABLE") with_scopes = false; | ~~~~~~~~~~~~~ ^~ ~~~~~~~~~ | | | | | const char [8] | sc_core::sc_string_view • there is 1 candidate tracing/sc_vcd_trace.cpp:1157:23: 1157 | if (with_scopes_s == "DISABLE") with_scopes = false; | ~~~~~~~~~~~~~~^~~~~~~~~~~~ In file included from ../../src/sysc/communication/sc_writer_policy.h:41, from ../../src/sysc/kernel/sc_ver.h:35, from tracing/sc_vcd_trace.cpp:61: • candidate 1: 'bool sc_core::operator==(const sc_process_handle&, const sc_process_handle&)' ../../src/sysc/kernel/sc_process_handle.h:155:13: 155 | inline bool operator == ( | ^~~~~~~~ • no known conversion for argument 1 from 'sc_core::sc_string_view' to 'const sc_core::sc_process_handle&' ../../src/sysc/kernel/sc_process_handle.h:156:30: 156 | const sc_process_handle& left, const sc_process_handle& right ) | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ tracing/sc_vcd_trace.cpp:1158:23: error: no match for 'operator==' (operand types are 'sc_core::sc_string_view' and 'const char [7]') 1158 | if (with_scopes_s == "ENABLE") with_scopes = true; | ~~~~~~~~~~~~~ ^~ ~~~~~~~~ | | | | | const char [7] | sc_core::sc_string_view • there is 1 candidate tracing/sc_vcd_trace.cpp:1158:23: 1158 | if (with_scopes_s == "ENABLE") with_scopes = true; | ~~~~~~~~~~~~~~^~~~~~~~~~~ • candidate 1: 'bool sc_core::operator==(const sc_process_handle&, const sc_process_handle&)' ../../src/sysc/kernel/sc_process_handle.h:155:13: 155 | inline bool operator == ( | ^~~~~~~~ • no known conversion for argument 1 from 'sc_core::sc_string_view' to 'const sc_core::sc_process_handle&' ../../src/sysc/kernel/sc_process_handle.h:156:30: 156 | const sc_process_handle& left, const sc_process_handle& right ) | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ make[4]: *** [Makefile:1157: tracing/sc_vcd_trace.lo] Error 1 make[4]: Leaving directory '/build/reproducible-path/systemc-3.0.2/src/sysc' make[3]: *** [Makefile:1204: all-recursive] Error 1 make[3]: Leaving directory '/build/reproducible-path/systemc-3.0.2/src/sysc' make[2]: *** [Makefile:659: all-recursive] Error 1 make[2]: Leaving directory '/build/reproducible-path/systemc-3.0.2/src' make[1]: *** [Makefile:522: all-recursive] Error 1 make[1]: Leaving directory '/build/reproducible-path/systemc-3.0.2' dh_auto_build: error: make -j128 returned exit code 2 make: *** [debian/rules:11: build] Error 25 dpkg-buildpackage: error: debian/rules build subprocess failed with exit status 2 ]