👓 What did you see?

Based on #320 (comment) and #328, I expected the SONAME version for both C and C++ shared libraries to be 32 for https://github.com/cucumber/gherkin/releases/tag/v32.0.0, using

and

Indeed, this was the case for the C++ library,

libgherkin.so -> libgherkin.so.32
libgherkin.so.32 -> libgherkin.so.32.0.0
libgherkin.so.32.0.0

but not for the C++ library,

libcucumber_gherkin.so -> libcucumber_gherkin.so.30
libcucumber_gherkin.so.30 -> libcucumber_gherkin.so.30.0.4
libcucumber_gherkin.so.30.0.4

✅ What did you expect to see?

I expected to see the C++ shared library versioned based on cpp/VERSION, just as the C shared library is now versioned based on c/VERSION, which would have resulted in:

libcucumber_gherkin.so -> libcucumber_gherkin.so.32
libcucumber_gherkin.so.32 -> libcucumber_gherkin.so.32.0.0
libcucumber_gherkin.so.32.0.0

📦 Which tool/library version are you using?

cucumber/gherkin 32.0.0; no other versions should be relevant

🔬 How could we reproduce it?

Build cpp/ with CMake in the usual way, setting -DBUILD_SHARED_LIBS:BOOL=ON. Observe that this produces:

${builddir}/src/lib/gherkin/libcucumber_gherkin.so.30.0.4
${builddir}/src/lib/gherkin/libcucumber_gherkin.so.30
${builddir}/src/lib/gherkin/libcucumber_gherkin.so

when the contents of VERSION are

32.0.0

📚 Any additional context?

It looks like cpp/CMakeLists.txt needs the same boilerplate as c/CMakeLists.txt: