pbrt-v4: CMake build linkage error

Trying to compile on the IN2P3 environment with cmake-3.18.2 compiled from source, I get linkage errors:

[100%] Linking CXX executable pbrt_test
libpbrt_lib.a(cameras.cpp.o): In function `pbrt::RealisticCamera::RenderExitPupil(float, float, char const*) const':
cameras.cpp:(.text+0x40a3): undefined reference to `pstd::optional<pbrt::Bounds2<int> >::optional()'
cameras.cpp:(.text+0x40cb): undefined reference to `pstd::optional<pbrt::Point2<int> >::optional()'
cameras.cpp:(.text+0x40ef): undefined reference to `pstd::optional<int>::optional()'
cameras.cpp:(.text+0x4134): undefined reference to `pstd::optional<pbrt::RGBColorSpace const*>::optional()'
cameras.cpp:(.text+0x417d): undefined reference to `std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > >::map()'
libpbrt_lib.a(stats.cpp.o): In function `pbrt::StatsAccumulator::WritePixelImages() const':
stats.cpp:(.text+0x1a27): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x1aac): undefined reference to `pstd::optional<pbrt::Bounds2<int> >::optional()'
stats.cpp:(.text+0x1ad0): undefined reference to `pstd::optional<pbrt::Point2<int> >::optional()'
stats.cpp:(.text+0x1af0): undefined reference to `pstd::optional<int>::optional()'
stats.cpp:(.text+0x1b10): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x1b30): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x1b4b): undefined reference to `pstd::optional<pbrt::RGBColorSpace const*>::optional()'
stats.cpp:(.text+0x1f02): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x1f8a): undefined reference to `pstd::optional<pbrt::Bounds2<int> >::optional()'
stats.cpp:(.text+0x1fae): undefined reference to `pstd::optional<pbrt::Point2<int> >::optional()'
stats.cpp:(.text+0x1fce): undefined reference to `pstd::optional<int>::optional()'
stats.cpp:(.text+0x1fee): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x200e): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x2029): undefined reference to `pstd::optional<pbrt::RGBColorSpace const*>::optional()'
stats.cpp:(.text+0x258f): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x2614): undefined reference to `pstd::optional<pbrt::Bounds2<int> >::optional()'
stats.cpp:(.text+0x2638): undefined reference to `pstd::optional<pbrt::Point2<int> >::optional()'
stats.cpp:(.text+0x2658): undefined reference to `pstd::optional<int>::optional()'
stats.cpp:(.text+0x2678): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x2698): undefined reference to `pstd::optional<float>::optional()'
stats.cpp:(.text+0x26b3): undefined reference to `pstd::optional<pbrt::RGBColorSpace const*>::optional()'
collect2: error: ld returned 1 exit status

How to pass the linkage successfully ?

For more details, below is the cmake output:

-- The CXX compiler identification is GNU 7.3.0
-- The C compiler identification is GNU 7.3.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /pbs/software/centos-7-x86_64/gcc/7.3.0/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /pbs/software/centos-7-x86_64/gcc/7.3.0/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Setting build type to 'Release' as none was specified.
-- Found Git: /usr/bin/git (found version "1.8.3.1") 
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Found ZLIB: /usr/lib64/libz.so (found version "1.2.7") 
-- Configure ILMBASE Version: 2.5.3 Lib API: 25.0.2
-- Looking for include file ucontext.h
-- Looking for include file ucontext.h - found
-- Performing Test ILMBASE_HAVE_CONTROL_REGISTER_SUPPORT
-- Performing Test ILMBASE_HAVE_CONTROL_REGISTER_SUPPORT - Success
-- Looking for include file semaphore.h
-- Looking for include file semaphore.h - found
-- Looking for sem_init in pthread
-- Looking for sem_init in pthread - found
-- Configure OpenEXR Version: 2.5.3 Lib API: 25.0.2
-- Performing Test OPENEXR_IMF_HAVE_SYSCONF_NPROCESSORS_ONLN
-- Performing Test OPENEXR_IMF_HAVE_SYSCONF_NPROCESSORS_ONLN - Success
-- Performing Test OPENEXR_IMF_HAVE_GCC_INLINE_ASM_AVX
-- Performing Test OPENEXR_IMF_HAVE_GCC_INLINE_ASM_AVX - Success
-- clang-format not found.
-- Found Doxygen: /usr/bin/doxygen (found version "1.8.5") found components: doxygen dot 
-- Unable to find -lprofiler
-- Looking for a CUDA compiler
-- Looking for a CUDA compiler - NOTFOUND
-- CUDA not found
-- Performing Test COMPILER_SUPPORTS_MARCH_NATIVE
-- Performing Test COMPILER_SUPPORTS_MARCH_NATIVE - Success
-- Performing Test HAVE_MMAP
-- Performing Test HAVE_MMAP - Success
-- Performing Test HAS_INTRIN_H
-- Performing Test HAS_INTRIN_H - Failed
-- Performing Test HAVE_DECLSPEC_NOINLINE
-- Performing Test HAVE_DECLSPEC_NOINLINE - Failed
-- Performing Test HAVE_ATTRIBUTE_NOINLINE
-- Performing Test HAVE_ATTRIBUTE_NOINLINE - Success
-- Performing Test HAVE__ALIGNED_MALLOC
-- Performing Test HAVE__ALIGNED_MALLOC - Failed
-- Performing Test HAVE_POSIX_MEMALIGN
-- Performing Test HAVE_POSIX_MEMALIGN - Success
-- Performing Test INT64_IS_OWN_TYPE
-- Performing Test INT64_IS_OWN_TYPE - Failed
-- Configuring done
-- Generating done
-- Build files have been written to: <...>/pbrt-v4/build