building a shared library NMAKE : fatal error U1077

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1

Hi,

I’m trying to build a simple shared library example.
With the included project, I’ve got an error on build:

"C:\Program Files\CMake\bin\cmake.exe" -E __create_def CMakeFiles\TestShared.dir\exports.def CMakeFiles\TestShared.dir\exports.def.objs
NMAKE : fatal error U1077: '"C:\Program Files\CMake\bin\cmake.exe"' : code '0xc0000005'

The equivalent project for mingw/gcc compiles and can be used by an application.

How do I fix my CMakeLists?
Thanks in advance, regards,
A.
CMakeExample.7z (2.2 KB)

2

First of all, a /LD was missing but now I’ve got another issue.

The shared library is compiled and seemed to be properly install but the client application cannot link:

TestExe.cpp.obj : error LNK2001: unresolved external symbol "int __cdecl TestSharedFcn(void)"

I’m joining a more complete example.

CMakeExample.7z (2.4 KB)

PS I suspect that there is an issue with the linkage to the associated import library.

3

Strangely enough: if I build a second time the error disappears.
I’m still failing to understand why.

Help would be appreciated on the proper way to build a msvc shared library
A.

4

The issues seems to be related to https://gitlab.kitware.com/cmake/cmake/-/issues/16282
Removing CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS usage and using GenerateExportHeader solves the issue in my case.

A.