Compile ERROR with MSVC VS2019

[zkccpro]

I got 2 unresolved symbols during linking with MSVC VS2019： static_symtable reloctbl

I find that the two symbols are both extern declared in .c file but no any reference. So, I change them to static declare and it can pass compiling and linking with my project. However, when I try to load a DLL in windows, flexdll cannot fetch any symbols in my DLL, flexdll_dlsym API return NULL. I try dumpbin.exe tool in widnows, and it truely got correct symbols.

Now, I begin getting confused, HOW can I use flexdll in my VS2019 project?

[nojb]

Generally speaking, you must use flexlink as your linker in order to use the FlexDLL "dlsym" API. Flexlink will take care of defininig the needed symbols at linktime. There is a simple example in the README of the repository.

[dra27]

I'm not sure that it's possible to use flexlink strictly in a VS2019 project - i.e. from within Visual Studio, because while Visual Studio allows you to pass arbitrary additional options to both the compiler and the linker, I don't think it gives anyway to complete replace the linker. Both the README (as @nojb notes) and the files in test/ show how to compile a pure C program using FlexDLL manually - it's possible that that can be set-up as a completely custom project in Visual Studio (so most of your code in a separate normal C project producing a .lib and then linked with flexlink in a completely manual project).

[dra27]

I'm going to close this only inasmuch as I don't think there's anything which needs changing in FlexDLL itself