Support for c++17

[dinardo]

Dear experts,
is it possible to compile IPbus with --std=c++1z flag?

Many thanks,
Mauro.

[tswilliams]

Hi,

This should be possible by ovrerriding CXXFLAGS when running make - i.e. make CXXFLAGS="-g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z"

Cheers,
Tom

[dinardo]

Many thanks. I used this make command:

make EXTERN_BOOST_INCLUDE_PREFIX=/home/testbeam/boost_v1_77_0/ EXTERN_BOOST_LIB_PREFIX=/home/testbeam/boost_v1_77_0/stage/lib/ CXXFLAGS="-g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z"

I'm getting this error:

mkdir -p /home/testbeam/ipbus-software/uhal/tests/lib
g++ -shared -Wl,-soname,libcactus_uhal_tests.so.2.8 -Wall -g -O3 -fPIC -Wl,--no-as-needed -lrt /home/testbeam/ipbus-software/uhal/tests/obj/DummyClient.o /home/testbeam/ipbus-software/uhal/tests/obj/DummyDerivedNode.o /home/testbeam/ipbus-software/uhal/tests/obj/DummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/PCIeDummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/PerfTester_static.o /home/testbeam/ipbus-software/uhal/tests/obj/TCPDummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/UDPDummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/fixtures.o /home/testbeam/ipbus-software/uhal/tests/obj/test_block.o /home/testbeam/ipbus-software/uhal/tests/obj/test_check_permissions.o /home/testbeam/ipbus-software/uhal/tests/obj/test_client_factory.o /home/testbeam/ipbus-software/uhal/tests/obj/test_config_space.o /home/testbeam/ipbus-software/uhal/tests/obj/test_empty_dispatch.o /home/testbeam/ipbus-software/uhal/tests/obj/test_hierarchy.o /home/testbeam/ipbus-software/uhal/tests/obj/test_masking.o /home/testbeam/ipbus-software/uhal/tests/obj/test_multithreaded.o /home/testbeam/ipbus-software/uhal/tests/obj/test_nodes.o /home/testbeam/ipbus-software/uhal/tests/obj/test_nonreachable.o /home/testbeam/ipbus-software/uhal/tests/obj/test_rawclient.o /home/testbeam/ipbus-software/uhal/tests/obj/test_single.o /home/testbeam/ipbus-software/uhal/tests/obj/test_soak.o /home/testbeam/ipbus-software/uhal/tests/obj/test_timeout.o /home/testbeam/ipbus-software/uhal/tests/obj/test_uri.o /home/testbeam/ipbus-software/uhal/tests/obj/tools.o -L/home/testbeam/boost_v1_77_0/stage/lib/ -L/home/testbeam/ipbus-software/uhal/log/lib -L/home/testbeam/ipbus-software/uhal/grammars/lib -L/home/testbeam/ipbus-software/uhal/uhal/lib -Llib -lcactus_uhal_uhal -lcactus_uhal_grammars -lcactus_uhal_log -lboost_filesystem -lboost_program_options -lboost_unit_test_framework -lboost_regex -lboost_system -lpugixml -lrt -lpthread -o lib/libcactus_uhal_tests.so.2.8.1
ln -s -f /home/testbeam/ipbus-software/uhal/tests/lib/libcactus_uhal_tests.so.2.8.1 lib/libcactus_uhal_tests.so.2.8
ln -s -f /home/testbeam/ipbus-software/uhal/tests/lib/libcactus_uhal_tests.so.2.8 lib/libcactus_uhal_tests.so
g++ -c -g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z  -Iinclude -I/home/testbeam/boost_v1_77_0/ -I/home/testbeam/ipbus-software/uhal/log/include -I/home/testbeam/ipbus-software/uhal/grammars/include -I/home/testbeam/ipbus-software/uhal/uhal/include /home/testbeam/ipbus-software/uhal/tests/src/common/DummyHardwareTcp.cxx -o /home/testbeam/ipbus-software/uhal/tests/obj/DummyHardwareTcp.o
mkdir -p /home/testbeam/ipbus-software/uhal/tests/bin
g++ -Wall -g -O3 -fPIC -Wl,--no-as-needed -lrt /home/testbeam/ipbus-software/uhal/tests/obj/DummyHardwareTcp.o -L/home/testbeam/boost_v1_77_0/stage/lib/ -L/home/testbeam/ipbus-software/uhal/log/lib -L/home/testbeam/ipbus-software/uhal/grammars/lib -L/home/testbeam/ipbus-software/uhal/uhal/lib -Llib -lcactus_uhal_tests -lcactus_uhal_uhal -lcactus_uhal_grammars -lcactus_uhal_log -lboost_filesystem -lboost_program_options -lboost_unit_test_framework -lboost_regex -lboost_system -lpugixml -lrt -lpthread -lstdc++ -o /home/testbeam/ipbus-software/uhal/tests/bin/DummyHardwareTcp.exe
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_chrono.so.1.77.0, needed by /home/testbeam/ipbus-software/uhal/uhal/lib/libcactus_uhal_uhal.so, not found (try using -rpath or -rpath-link)
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_atomic.so.1.77.0, needed by /home/testbeam/boost_v1_77_0/stage/lib//libboost_filesystem.so, not found (try using -rpath or -rpath-link)
g++ -c -g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z  -Iinclude -I/home/testbeam/boost_v1_77_0/ -I/home/testbeam/ipbus-software/uhal/log/include -I/home/testbeam/ipbus-software/uhal/grammars/include -I/home/testbeam/ipbus-software/uhal/uhal/include /home/testbeam/ipbus-software/uhal/tests/src/common/DummyHardwareUdp.cxx -o /home/testbeam/ipbus-software/uhal/tests/obj/DummyHardwareUdp.o
g++ -Wall -g -O3 -fPIC -Wl,--no-as-needed -lrt /home/testbeam/ipbus-software/uhal/tests/obj/DummyHardwareUdp.o -L/home/testbeam/boost_v1_77_0/stage/lib/ -L/home/testbeam/ipbus-software/uhal/log/lib -L/home/testbeam/ipbus-software/uhal/grammars/lib -L/home/testbeam/ipbus-software/uhal/uhal/lib -Llib -lcactus_uhal_tests -lcactus_uhal_uhal -lcactus_uhal_grammars -lcactus_uhal_log -lboost_filesystem -lboost_program_options -lboost_unit_test_framework -lboost_regex -lboost_system -lpugixml -lrt -lpthread -lstdc++ -o /home/testbeam/ipbus-software/uhal/tests/bin/DummyHardwareUdp.exe
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_chrono.so.1.77.0, needed by /home/testbeam/ipbus-software/uhal/uhal/lib/libcactus_uhal_uhal.so, not found (try using -rpath or -rpath-link)
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_atomic.so.1.77.0, needed by /home/testbeam/boost_v1_77_0/stage/lib//libboost_filesystem.so, not found (try using -rpath or -rpath-link)
g++ -c -g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z  -Iinclude -I/home/testbeam/boost_v1_77_0/ -I/home/testbeam/ipbus-software/uhal/log/include -I/home/testbeam/ipbus-software/uhal/grammars/include -I/home/testbeam/ipbus-software/uhal/uhal/include /home/testbeam/ipbus-software/uhal/tests/src/common/PerfTester.cxx -o /home/testbeam/ipbus-software/uhal/tests/obj/PerfTester.o
g++ -Wall -g -O3 -fPIC -Wl,--no-as-needed -lrt /home/testbeam/ipbus-software/uhal/tests/obj/PerfTester.o -L/home/testbeam/boost_v1_77_0/stage/lib/ -L/home/testbeam/ipbus-software/uhal/log/lib -L/home/testbeam/ipbus-software/uhal/grammars/lib -L/home/testbeam/ipbus-software/uhal/uhal/lib -Llib -lcactus_uhal_tests -lcactus_uhal_uhal -lcactus_uhal_grammars -lcactus_uhal_log -lboost_filesystem -lboost_program_options -lboost_unit_test_framework -lboost_regex -lboost_system -lpugixml -lrt -lpthread -lstdc++ -o /home/testbeam/ipbus-software/uhal/tests/bin/PerfTester.exe
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_chrono.so.1.77.0, needed by /home/testbeam/ipbus-software/uhal/uhal/lib/libcactus_uhal_uhal.so, not found (try using -rpath or -rpath-link)
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_atomic.so.1.77.0, needed by /home/testbeam/boost_v1_77_0/stage/lib//libboost_filesystem.so, not found (try using -rpath or -rpath-link)
g++ -c -g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z  -Iinclude -I/home/testbeam/boost_v1_77_0/ -I/home/testbeam/ipbus-software/uhal/log/include -I/home/testbeam/ipbus-software/uhal/grammars/include -I/home/testbeam/ipbus-software/uhal/uhal/include /home/testbeam/ipbus-software/uhal/tests/src/common/run_uhal_tests.cxx -o /home/testbeam/ipbus-software/uhal/tests/obj/run_uhal_tests.o
g++ -Wall -g -O3 -fPIC -Wl,--no-as-needed -lrt /home/testbeam/ipbus-software/uhal/tests/obj/run_uhal_tests.o -L/home/testbeam/boost_v1_77_0/stage/lib/ -L/home/testbeam/ipbus-software/uhal/log/lib -L/home/testbeam/ipbus-software/uhal/grammars/lib -L/home/testbeam/ipbus-software/uhal/uhal/lib -Llib -lcactus_uhal_tests -lcactus_uhal_uhal -lcactus_uhal_grammars -lcactus_uhal_log -lboost_filesystem -lboost_program_options -lboost_unit_test_framework -lboost_regex -lboost_system -lpugixml -lrt -lpthread -lstdc++ -o /home/testbeam/ipbus-software/uhal/tests/bin/run_uhal_tests.exe
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_chrono.so.1.77.0, needed by /home/testbeam/ipbus-software/uhal/uhal/lib/libcactus_uhal_uhal.so, not found (try using -rpath or -rpath-link)
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: warning: libboost_atomic.so.1.77.0, needed by /home/testbeam/boost_v1_77_0/stage/lib//libboost_filesystem.so, not found (try using -rpath or -rpath-link)
/opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: /lib/../lib64/crt1.o: in function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
make[2]: *** [/home/testbeam/ipbus-software/uhal/config/mfRules.mk:113: /home/testbeam/ipbus-software/uhal/tests/bin/run_uhal_tests.exe] Error 1
make[2]: Leaving directory '/home/testbeam/ipbus-software/uhal/tests'
make[1]: *** [Makefile:49: tests/.virtual.Makefile] Error 2
make[1]: Leaving directory '/home/testbeam/ipbus-software/uhal'
make: *** [Makefile:58: uhal/.virtual.Makefile] Error 2

Both these two libraries are present precisely in the directory /home/testbeam/boost_v1_77_0/stage/lib/:

• libboost_chrono.so.1.77.0
• libboost_atomic.so.1.77.0

Instead, if don't use CXXFLAGS="-g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z" everything seems to be compiled properly

[dinardo]

How can I force make to use ONLY my boost personal installation?

[tswilliams]

Hi,

How can I force make to use ONLY my boost personal installation?

The use of EXTERN_BOOST_INCLUDE_PREFIX and EXTERN_BOOST_LIB_PREFIX should already be including your personal boost installation

Instead, if don't use CXXFLAGS="-g -Wall -pedantic -O3 -MMD -MP -fPIC -std=c++1z" everything seems to be compiled properly

Was boost also compiled with the same -std=c++1z flag?

[dinardo]

I see for example that one of the make command lines is:

g++ -shared -Wl,-soname,libcactus_uhal_tests.so.2.8 -Wall -g -O3 -fPIC -Wl,--no-as-needed -lrt /home/testbeam/ipbus-software/uhal/tests/obj/DummyClient.o /home/testbeam/ipbus-software/uhal/tests/obj/DummyDerivedNode.o /home/testbeam/ipbus-software/uhal/tests/obj/DummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/PCIeDummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/PerfTester_static.o /home/testbeam/ipbus-software/uhal/tests/obj/TCPDummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/UDPDummyHardware.o /home/testbeam/ipbus-software/uhal/tests/obj/fixtures.o /home/testbeam/ipbus-software/uhal/tests/obj/test_block.o /home/testbeam/ipbus-software/uhal/tests/obj/test_check_permissions.o /home/testbeam/ipbus-software/uhal/tests/obj/test_client_factory.o /home/testbeam/ipbus-software/uhal/tests/obj/test_config_space.o /home/testbeam/ipbus-software/uhal/tests/obj/test_empty_dispatch.o /home/testbeam/ipbus-software/uhal/tests/obj/test_hierarchy.o /home/testbeam/ipbus-software/uhal/tests/obj/test_masking.o /home/testbeam/ipbus-software/uhal/tests/obj/test_multithreaded.o /home/testbeam/ipbus-software/uhal/tests/obj/test_nodes.o /home/testbeam/ipbus-software/uhal/tests/obj/test_nonreachable.o /home/testbeam/ipbus-software/uhal/tests/obj/test_rawclient.o /home/testbeam/ipbus-software/uhal/tests/obj/test_single.o /home/testbeam/ipbus-software/uhal/tests/obj/test_soak.o /home/testbeam/ipbus-software/uhal/tests/obj/test_timeout.o /home/testbeam/ipbus-software/uhal/tests/obj/test_uri.o /home/testbeam/ipbus-software/uhal/tests/obj/tools.o -L/home/testbeam/boost_v1_77_0/stage/lib -L/home/testbeam/ipbus-software/uhal/log/lib -L/home/testbeam/ipbus-software/uhal/grammars/lib -L/home/testbeam/ipbus-software/uhal/uhal/lib -Llib -lcactus_uhal_uhal -lcactus_uhal_grammars -lcactus_uhal_log -lboost_filesystem -lboost_program_options -lboost_unit_test_framework -lboost_regex -lboost_system -lpugixml -lrt -lpthread -o lib/libcactus_uhal_tests.so.2.8.1

Is for example -lboost_system taken from my local BOOST or from system BOOST?

Yes indesd, I compiled my local BOOST with: -std=c++1z, this is the sequence of commands:

./bootstrap.sh
./b2 cxxflags=-std=c++1z --prefix=/home/testbeam/boost_v1_77_0/

Did you try yourself to compile v2.8.1 with c++17 ?

Many thanks for your support

[tswilliams]

Hi,

To understand the situation: Which OS & g++ version are you using?

Cheers,
Tom

[dinardo]

I'm using: CENTOS7 and devtools10

[dinardo]

Dear experts,
do you have any insight into this issue?

Many thanks,

• Mauro.