https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64918 Bug ID: 64918 Summary: invalid (?) warning when initializing structure Product: gcc Version: 4.9.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: oystein at gnubg dot org Created attachment 34651 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34651&action=edit Code that trigger the invalid warning. Hi! I'm initializing a complex structure with designated initialisers and overriding an array element (intentionally), and I then get the error message: sideffects.c:26:13: warning: initialized field with side-effects overwritten [3] = { .func = thefunction, .args = &((char*[]){"foo4", "bar4", "baz4"})}, ^ sideffects.c:26:13: warning: (near initialization for 'myconfig.config[3]') However I do believe my code is correct. It complains about initializing with side-effects, but I think my code is legal c99. (Please tell me otherwise.) I compile the attached code with: gcc -std=gnu99 -Wall -Wextra -Wno-override-init sideeffects.c -o sideeffects I have tried several different versions of GCC, and here is a short summary: GCC 4.9.2 (Arch Linux x86_64) -> Warning generated. GCC 4.9.2 (Mingw32-w64 x86_64) -> Warning generated. GCC 4.8.0 (Linux x86_64) -> Warning generated. GCC 4.4.7 (Red Hat 4.4.7-4) -> No warning. GCC 4.1.2 (Red Hat 4.1.2-52) -> No warning. clang 3.5.1 (Arch Linux) -> No warning. Best regards, -Øystein Full info on compilers used (Those that generates warning): [oystein@jupiter ~]$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.2/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /build/gcc/src/gcc-4.9-20141224/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-cloog-backend=isl --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --disable-multilib --disable-werror --enable-checking=release Thread model: posix gcc version 4.9.2 20141224 (prerelease) (GCC) [14:29:03,90 c:\APPL]# gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=C:/Program\ Files/mingw-w64/x86_64-4.9.2-posix-seh-rt_v3-rev1/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/4.9.2/lto-wrapper.exe Target: x86_64-w64-mingw32 Configured with: ../../../src/gcc-4.9.2/configure --host=x86_64-w64-mingw32 --build=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --prefix=/mingw64 --with-sysroot=/c/mingw492/x86_64-492-posix-seh-rt_v3-rev1/mingw64 --with-gxx-include-dir=/mingw64/x86_64-w64-mingw32/include/c++ --enable-shared --enable-static --disable-multilib --enable-languages=ada,c,c++,fortran,objc,obj-c++,lto --enable-libstdcxx-time=yes --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto --enable-graphite --enable-checking=release --enable-fully-dynamic-string --enable-version-specific-runtime-libs --disable-isl-version-check --disable-cloog-version-check --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-bootstrap --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-gnu-as --with-gnu-ld --with-arch=nocona --with-tune=core2 --with-libiconv --with-system-zlib --with-gmp=/c/mingw492/prerequisites/x86_64-w64-mingw32-static --with-mpfr=/c/mingw492/prerequisites/x86_64-w64-mingw32-static --with-mpc=/c/mingw492/prerequisites/x86_64-w64-mingw32-static --with-isl=/c/mingw492/prerequisites/x86_64-w64-mingw32-static --with-cloog=/c/mingw492/prerequisites/x86_64-w64-mingw32-static --enable-cloog-backend=isl --with-pkgversion='x86_64-posix-seh-rev1, Built by MinGW-W64 project' --with-bugurl=http://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe -I/c/mingw492/x86_64-492-posix-seh-rt_v3-rev1/mingw64/opt/include -I/c/mingw492/prerequisites/x86_64-zlib-static/include -I/c/mingw492/prerequisites/x86_64-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe -I/c/mingw492/x86_64-492-posix-seh-rt_v3-rev1/mingw64/opt/include -I/c/mingw492/prerequisites/x86_64-zlib-static/include -I/c/mingw492/prerequisites/x86_64-w64-mingw32-static/include' CPPFLAGS= LDFLAGS='-pipe -L/c/mingw492/x86_64-492-posix-seh-rt_v3-rev1/mingw64/opt/lib -L/c/mingw492/prerequisites/x86_64-zlib-static/lib -L/c/mingw492/prerequisites/x86_64-w64-mingw32-static/lib ' Thread model: posix gcc version 4.9.2 (x86_64-posix-seh-rev1, Built by MinGW-W64 project) [ojohans@st-linapp30 ~/tmp]$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/private/ojohans/personal/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc-trunk-source/gcc/configure --enable-languages=c,c++,fortran --enable-checking=release --disable-bootstrap --disable-libmudflap --disable-libstdcxx-pch --enable-libgomp --enable-lto --enable-gold --with-plugin-ld=/usr/bin/gold --with-cloog-include=/usr/include-cloog --with-cloog-lib=/usr/lib64 --prefix=/usr/local/gcc-trunk Thread model: posix gcc version 4.8.0 20121206 (experimental) [trunk revision 194238] (GCC) >From gcc-bugs-return-475879-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Feb 03 13:47:30 2015 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 18142 invoked by alias); 3 Feb 2015 13:47:29 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 18119 invoked by uid 48); 3 Feb 2015 13:47:26 -0000 From: "tgard at opentext dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug bootstrap/64919] New: bootstrap failure of gcc-4.9.2 on ia64-hpux in libgcc Date: Tue, 03 Feb 2015 13:47:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: bootstrap X-Bugzilla-Version: 4.9.2 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: tgard at opentext dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-02/txt/msg00212.txt.bz2 Content-length: 1604 https://gcc.gnu.org/bugzilla/show_bug.cgi?idd919 Bug ID: 64919 Summary: bootstrap failure of gcc-4.9.2 on ia64-hpux in libgcc Product: gcc Version: 4.9.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap Assignee: unassigned at gcc dot gnu.org Reporter: tgard at opentext dot com Created attachment 34652 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id4652&actioníit The command from config.log which fails The HPUX version is 11.31 gcc-4.9.2 did not bootstrap using HPUX aCC so I installed gcc-4.7.2 and used this. The latest gnu assembler is used as I failed to get gcc-4.7.2 to work. The error is: ------------------------------- configure:3389: /builds/gbgbuild/bld/gcc/stbldh01/obj-4.9.2/./gcc/xgcc -B/builds/gbgbuild/bld/gcc/stbldh01/obj-4.9.2/./gcc/ -B/usr/local/gcc-4.9.2/ia64-hp-hpux11.31/bin/ -B/usr/local/gcc-4.9.2/ia64-hp-hpux11.31/lib/ -isystem /usr/local/gcc-4.9.2/ia64-hp-hpux11.31/include -isystem /usr/local/gcc-4.9.2/ia64-hp-hpux11.31/sys-include -o conftest -g -O2 conftest.c >&5 conftest.c: In function 'main': conftest.c:11:1: internal compiler error: Segmentation fault main () ^ libbacktrace could not find executable to open Please submit a full bug report, .... configure:3620: error: in `/builds/gbgbuild/bld/gcc/stbldh01/obj-4.9.2/ia64-hp-hpux11.31/libgcc': configure:3623: error: cannot compute suffix of object files: cannot compile See `config.log' for more details ---------------------------------- See also attachments