Build Fails for BAYESOPT_BUILD_SHARED=ON

[Hana-Ali]

Hello,

First off, thank you for creating this library! I'm really excited to use it in my dissertation, but unfortunately I've been getting errors trying to build it. When I build it as static libraries (BAYESOPT_BUILD_SHARED=OFF), it works fine, but when I want shared libraries it doesn't.

I'm currently trying to implement this to as a distutils python extension, where the BO runs in a C++ file that receives input from a Python file. To do this, I need shared libraries to link in the Extension(), which unfortunately doesn't work. I've tried building and compiling with both MINGW32 and MSVC, both fail to compile with the following errors:

C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text$_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE[_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE]+0xf1): undefined reference to `bayesopt::utils::FileParser::FileParser(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int)'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text$_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE[_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE]+0x78a): undefined reference to `bayesopt::utils::FileParser::openInput()'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text$_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE[_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE]+0x7e3): undefined reference to `bayesopt::utils::FileParser::read(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text$_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE[_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE]+0xb1d): undefined reference to `bayesopt::utils::FileParser::close()'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text$_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE[_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE]+0xb46): undefined reference to `bayesopt::utils::FileParser::~FileParser()'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text$_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE[_ZN17SystemCallsBranin14evaluateSampleERKN5boost7numeric5ublas6vectorIdNS2_15unbounded_arrayIdSaIdEEEEE]+0xef5): undefined reference to `bayesopt::utils::FileParser::~FileParser()'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text.startup+0x2b): undefined reference to `bayesopt::Parameters::Parameters()'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text.startup+0xb4): undefined reference to `bayesopt::utils::ParamLoader::load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bayesopt::Parameters&)'
C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\branin_system_calls.dir/objects.a(branin_system_calls.cpp.obj):branin_system_calls.cpp:(.text.startup+0x498): undefined reference to `bayesopt::Parameters::Parameters(bopt_params)'
collect2.exe: error: ld returned 1 exit status
mingw32-make[2]: *** [examples\CMakeFiles\branin_system_calls.dir\build.make:101: bin/branin_system_calls.exe] Error 1
mingw32-make[1]: *** [CMakeFiles\Makefile2:190: examples/CMakeFiles/branin_system_calls.dir/all] Error 2
mingw32-make: *** [Makefile:135: all] Error 2

I'm not sure what the error is or how to fix it, any help is appreciated!

Thanks, Hana

[rmcantin]

Sorry, I never got the Python interface running on Windows. The library management is beyond my expertise.

[Hana-Ali]

No worries at all. Thanks for your response :)