Compiling with _FORTIFY_SOURCE, which might standard in some distros, seems to break the compilation process with an error on libc's function vnsprintf().

The following patch can fix the compilation:

-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -Wall")
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -U_FORTIFY_SOURCE -Wall")
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -U_FORTIFY_SOURCE -O3")

Might need more info as alpine uses musl.

Setup:
Alpine 39
gcc (Alpine 8.3.0) 8.3.0