Unable to compile C++ libraries in C++ Builder 10.4

MECALUX, S.A.

When I try to compile C++ (Builder 10.4) version of the libraries, I get the following errors:

[ilink32 Error] Error: Unresolved external '__InitVCL' referenced from C:\PROGRAM FILES (X86)\EMBARCADERO\STUDIO\21.0\LIB\WIN32\RELEASE\CP32MTI.LIB|crtlvcl

[ilink32 Error] Error: Unresolved external '__ExitVCL' referenced from C:\PROGRAM FILES (X86)\EMBARCADERO\STUDIO\21.0\LIB\WIN32\RELEASE\CP32MTI.LIB|crtlvcl

[ilink32 Error] Error: Unable to perform link

This are the steps I make to compile all libraries:

- Execute the installer for the libraries. I install them in C:\LMD2020. Lib path is C:\LMD2020\lib

- Execute the installer for the source code. Install it also in C:\LMD2020. BPL folder if the default folder and mark the option to modify the search path in Builder 10.4

- Compile (with Delphi) project _LMD2020VCL_d27.groupproj, both for 32 and 64 bits --> No errors

- Compile (with Builder) project _LMD2020VCL_b27.groupproj --> Linking error

At this point, I have noticed that there is projects for C++ version are not configured to have 32 and 64 bits platform. Only 32 is available. Is this correct?, I think is also needed platform for 64 bits version.

MECALUX, S.A.

Any help?

Eugene Balabuev (LMD)

For creating installers we compile our libraries using Delphi project files and Delphi compiler (using LMD-DevUtil). This should be sufficient to use them in C++ projects (given that all C++ related library/include/ect paths are specified).

MECALUX, S.A.

That means that is not needed to compile the C++ projects?

In that case, how and where x64 libraries (*.a) are generated?

What is LMD-DevUtils?

Eugene Balabuev (LMD)

Delphi compiler supports special command line keys, which can be used to generate C++ headers and libraries. LMD-DevUtil uses these keys (and I believe VCL itself is compiled similarly - using Delphi compiler).

Compiled packages are placed into RadStudio default paths; on my system these paths are:

C:\Users\Public\Documents\Embarcadero\Studio\21.0\Bpl

C:\Users\Public\Documents\Embarcadero\Studio\21.0\Blp\Win64

C:\Users\Public\Documents\Embarcadero\Studio\21.0\Dcp

C:\Users\Public\Documents\Embarcadero\Studio\21.0\Dcp\Win64

There you can find 32 bit "*.lib" files, as well as 64 bit "*.a" files.

Eugene Balabuev (LMD)

LMD-DevUtil is our utility tool, which allows to manage source code. But, it only accessible for customers, which own LMD VCL Complete (with GIT access).

Anyway, LMD-DevUtil is not absolutely required. Just recompiling Delphi packages for x64 platform inside IDE will produce "*.a" files in mentioned above folders. But, note that design-time packages cannot be recompiled for x64 bit, since IDE itself is 32 bit; so, just skip them.