Build breaks on i386 architectures: constant expression evaluates to 18446744073709551613 which cannot be narrowed to type 'unsigned int'

[yurivict]

/wrkdirs/usr/ports/misc/adios2/work/ADIOS2-2.6.0/source/adios2/engine/ssc/SscReader.cpp:351:41: error: constant expression evaluates to 18446744073709551613 which cannot be narrowed to type 'unsigned int' [-Wc++11-narrowing]
            ADIOS2_FOREACH_STDTYPE_1ARG(declare_type)
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/wrkdirs/usr/ports/misc/adios2/work/ADIOS2-2.6.0/source/adios2/common/ADIOSMacros.h:58:5: note: expanded from macro 'ADIOS2_FOREACH_STDTYPE_1ARG'
    MACRO(std::string)                                                         \
    ^~~~~~~~~~~~~~~~~~
/wrkdirs/usr/ports/misc/adios2/work/ADIOS2-2.6.0/source/adios2/engine/ssc/SscReader.cpp:343:49: note: expanded from macro 'declare_type'
                m_IO.DefineVariable<T>(b.name, {adios2::LocalValueDim});       \
                                                ^~~~~~~~~~~~~~~~~~~~~
/wrkdirs/usr/ports/misc/adios2/work/ADIOS2-2.6.0/source/adios2/engine/ssc/SscReader.cpp:351:41: note: insert an explicit cast to silence this issue
            ADIOS2_FOREACH_STDTYPE_1ARG(declare_type)
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~

Log: http://beefy10.nyi.freebsd.org/data/113i386-default/549079/logs/adios2-2.6.0_1.log

[yurivict]

@dmitry-ganyushin Could you please fix this?

[williamfgc]

@yurivict FYI, adios2 doesn't support 32-bit systems and is not currently being tested