John Mandereau <john.mander...@gmail.com> writes: > v.villen...@gmail.com wrote: > >> page-turn-page-breaking.cc: In instantiation of 'bool is_break(T*) >> [with >> T = Grob]': >> page-turn-page-breaking.cc:50:54: required from here >> page-turn-page-breaking.cc:38:3: warning: operation on '*0' may be >> undefined [-Wsequence-point] >> if (turnable >> ^~ >> page-turn-page-breaking.cc: In instantiation of 'bool is_break(T*) >> [with >> T = Prob]': >> page-turn-page-breaking.cc:50:54: required from here >> page-turn-page-breaking.cc:38:3: warning: operation on '*0' may be >> undefined [-Wsequence-point] > > > FWIW I get this warning as well (building on Fedora 29 with GCC 8.2.1).
touch lily/page-turn-page-breaking.cc CPU_COUNT=9 make -j9 [...] make[1]: Leaving directory '/usr/local/tmp/lilypond/flower' make[1]: Entering directory '/usr/local/tmp/lilypond/lily' rm -f ./out/page-turn-page-breaking.dep; DEPENDENCIES_OUTPUT="./out/page-turn-page-breaking.dep ./out/page-turn-page-breaking.o" g++ -c -Woverloaded-virtual -I/usr/include/python2.7 -I/usr/include/x86_64-linux-gnu/python2.7 -fno-strict-aliasing -g -fdebug-prefix-map=/build/python2.7-YmcQQ3/python2.7-2.7.15=. -fstack-protector-strong -g -fwrapv -DHAVE_CONFIG_H -DDEBUG -I./include -I./out -I../flower/include -I../flower/./out -I../flower/include -O2 -finline-functions -g -pipe -Wno-cast-function-type -I/usr/local/tmp/guile-1.8/include -pthread -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -W -Wall -Wconversion -o out/page-turn-page-breaking.o page-turn-page-breaking.cc make -C ../flower && true make[2]: Entering directory '/usr/local/tmp/lilypond/flower' true make[2]: Leaving directory '/usr/local/tmp/lilypond/flower' [...] g++ --version g++ (Ubuntu 8.2.0-21ubuntu1) 8.2.0 head config.log This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by configure, which was generated by GNU Autoconf 2.69. Invocation command line was $ ./configure GUILE_CONFIG=/usr/local/tmp/guile-1.8/bin/guile-config --enable-checking --no-create --no-recursion ## --------- ## ## Platform. ## Huh. Maybe the Ubuntu compilation of gcc/g++ disabled some warnings? g++ --verbose Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 8.2.0-21ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 8.2.0 (Ubuntu 8.2.0-21ubuntu1) Huh. No idea. -- David Kastrup _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
