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https://issues.apache.org/jira/browse/MESOS-6616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15959329#comment-15959329
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Neil Conway commented on MESOS-6616:
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[~opoplawski] Interesting. What version of GCC is this?
> error: dereferencing type-punned pointer will break strict-aliasing rules
> -------------------------------------------------------------------------
>
> Key: MESOS-6616
> URL: https://issues.apache.org/jira/browse/MESOS-6616
> Project: Mesos
> Issue Type: Bug
> Affects Versions: 1.1.0
> Environment: Fedora Rawhide
> Reporter: Orion Poplawski
> Labels: compile-error
>
> Trying to update the mesos package to 1.1.0 in Fedora. Getting:
> libtool: compile: g++ -DPACKAGE_NAME=\"mesos\" -DPACKAGE_TARNAME=\"mesos\"
> -DPACKAGE_VERSION=\"1.1.0\" "-DPACKAGE_STRING=\"mesos 1.1.0\""
> -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"mesos\"
> -DVERSION=\"1.1.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1
> -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1
> -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1
> -DLT_OBJDIR=\".libs/\" -DHAVE_CXX11=1 -DHAVE_PTHREAD_PRIO_INHERIT=1
> -DHAVE_PTHREAD=1 -DHAVE_LIBZ=1 -DHAVE_FTS_H=1 -DHAVE_APR_POOLS_H=1
> -DHAVE_LIBAPR_1=1 -DHAVE_BOOST_VERSION_HPP=1 -DHAVE_LIBCURL=1
> -DHAVE_ELFIO_ELFIO_HPP=1 -DHAVE_GLOG_LOGGING_H=1 -DHAVE_HTTP_PARSER_H=1
> -DMESOS_HAS_JAVA=1 -DHAVE_LEVELDB_DB_H=1 -DHAVE_LIBNL_3=1
> -DHAVE_LIBNL_ROUTE_3=1 -DHAVE_LIBNL_IDIAG_3=1 -DWITH_NETWORK_ISOLATOR=1
> -DHAVE_GOOGLE_PROTOBUF_MESSAGE_H=1 -DHAVE_EV_H=1 -DHAVE_PICOJSON_H=1
> -DHAVE_LIBSASL2=1 -DHAVE_SVN_VERSION_H=1 -DHAVE_LIBSVN_SUBR_1=1
> -DHAVE_SVN_DELTA_H=1 -DHAVE_LIBSVN_DELTA_1=1 -DHAVE_LIBZ=1
> -DHAVE_ZOOKEEPER_H=1 -DHAVE_PYTHON=\"2.7\" -DMESOS_HAS_PYTHON=1 -I. -Wall
> -Werror -Wsign-compare -DLIBDIR=\"/usr/lib64\"
> -DPKGLIBEXECDIR=\"/usr/libexec/mesos\" -DPKGDATADIR=\"/usr/share/mesos\"
> -DPKGMODULEDIR=\"/usr/lib64/mesos/modules\" -I../include -I../include
> -I../include/mesos -DPICOJSON_USE_INT64 -D__STDC_FORMAT_MACROS
> -I../3rdparty/libprocess/include -I../3rdparty/nvml-352.79
> -I../3rdparty/stout/include -DHAS_AUTHENTICATION=1 -Iyes/include
> -I/usr/include/subversion-1 -Iyes/include -Iyes/include -Iyes/include/libnl3
> -Iyes/include -I/ -Iyes/include -I/usr/include/apr-1 -I/usr/include/apr-1.0
> -I/builddir/build/BUILD/mesos-1.1.0/libev-4.15/include -isystem yes/include
> -Iyes/include -I/usr/src/gmock -I/usr/src/gmock/include -I/usr/src/gmock/src
> -I/usr/src/gmock/gtest -I/usr/src/gmock/gtest/include
> -I/usr/src/gmock/gtest/src -Iyes/include -Iyes/include -I/usr/include
> -I/builddir/build/BUILD/mesos-1.1.0/libev4.15/include -Iyes/include
> -I/usr/include -I/usr/include/zookeeper -pthread -O2 -g -pipe -Wall
> -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches
> -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic
> -DEV_CHILD_ENABLE=0 -I/builddir/build/BUILD/mesos-1.1.0/libev-4.15
> -Wno-unused-local-typedefs -Wno-maybe-uninitialized -std=c++11 -c
> health-check/health_checker.cpp -fPIC -DPIC -o
> health-check/.libs/libmesos_no_3rdparty_la-health_checker.o
> In file included from health-check/health_checker.cpp:51:0:
> ./linux/ns.hpp: In function 'Try<int> ns::clone(pid_t, int, const
> std::function<int()>&, int)':
> ./linux/ns.hpp:480:69: error: dereferencing type-punned pointer will break
> strict-aliasing rules [-Werror=strict-aliasing]
> pid_t pid = ((struct ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->pid;
> ^~
> ./linux/ns.hpp: In lambda function:
> ./linux/ns.hpp:581:59: error: dereferencing type-punned pointer will break
> strict-aliasing rules [-Werror=strict-aliasing]
> ((struct ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->pid = ::getpid();
> ^~
> ./linux/ns.hpp:582:59: error: dereferencing type-punned pointer will break
> strict-aliasing rules [-Werror=strict-aliasing]
> ((struct ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->uid = ::getuid();
> ^~
> ./linux/ns.hpp:583:59: error: dereferencing type-punned pointer will break
> strict-aliasing rules [-Werror=strict-aliasing]
> ((struct ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->gid = ::getgid();
> ^~
> cc1plus: all warnings being treated as errors
> make[2]: *** [Makefile:6655:
> health-check/libmesos_no_3rdparty_la-health_checker.lo] Error 1
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