makefile - ld warnings for bin/stansummary #904
Description
Summary:
On MacOS, after changes to src/cmdstan/stansummary.cpp, make bin/stansummary results in extensive linker warnings.
command is:
clang++ -std=c++1y -Wno-unknown-warning-option -Wno-tautological-compare -Wno-sign-compare -D_REENTRANT -I stan/lib/stan_math/lib/tbb_2019_U8/include -O3 -I src -I stan/src -I lib/rapidjson_1.1.0/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.7 -I stan/lib/stan_math/lib/boost_1.72.0 -I stan/lib/stan_math/lib/sundials_5.2.0/include -DBOOST_DISABLE_ASSERTS -Wl,-L,"/Users/mitzi/github/stan-dev/cmdstan/stan/lib/stan_math/lib/tbb" -Wl,-rpath,"/Users/mitzi/github/stan-dev/cmdstan/stan/lib/stan_math/lib/tbb" bin/cmdstan/stansummary.o stan/lib/stan_math/lib/boost_1.72.0/stage/lib/libboost_program_options.a stan/lib/stan_math/lib/boost_1.72.0/stage/lib/libboost_program_options.a -o bin/stansummary
(also note, stan/lib/stan_math/lib/boost_1.72.0/stage/lib/libboost_program_options.a listed twice)
output is:
ld: warning: direct access in function 'std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const& boost::program_options::validators::get_single_string<char>(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, bool)' from file 'stan/lib/stan_math/lib/boost_1.72.0/stage/lib/libboost_program_options.a(value_semantic.o)' to global weak symbol 'guard variable for std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const& boost::program_options::validators::get_single_string<char>(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, bool)::empty' from file 'bin/cmdstan/stansummary.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
Description:
The following doesn't work:
> make build
> touch src/cmdstan/stansummary.cpp
> make bin/stansummary
Reproducible Steps:
see description
Current Output:
see description
Expected Output:
Just recompile/link stansummary - should need to recompile all libraries given that no setting have changed.
Additional Information:
searches on error turned up discussion of visilibity flags - my experience is the same as here:
https://developer.apple.com/forums/thread/43164
Current Version:
v2.23.0
