Build Doubt:: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=0")

[DPVK27]

I'm trying to build the code with this compiler flag set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=0"), it is not allowing. Could you please help me in this

[aral-matrix]

I believe the proper command in CMakeLists.txt is

    add_compile_definitions(_GLIBCXX_USE_CXX11_ABI=0)

However, as per https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_macros.html:

_GLIBCXX_USE_CXX11_ABI

Defined to the value 1 by default. Configurable via --disable-libstdcxx-dual-abi and/or --with-default-libstdcxx-abi. ABI-changing. When defined to a non-zero value the library headers will use the new C++11-conforming ABI introduced in GCC 5, rather than the older ABI introduced in GCC 3.4. This changes the definition of several class templates, including std:string, std::list and some locale facets.

You seem to be trying to enable binary compatibility even older than C++11 - OpenXLSX is using C++17, and not even downward compatible to C++11 - much less to even older standards.

Unfortunately, this issue is therefore unfixable within OpenXLSX. I would recommend that you use newer compilers or - if you are trying to integrate into an older software that is important and can not be compiled on a newer system - you would have to create your own legacy interface to an OpenXLSX library compiled versus C++17.