Using the __EDG_VERSION__ macro for checks related to EDG-based
compilers instead of a macros specific for each of ones.

On some platform, fmt is using the following link flag:
```cmake
  target_link_libraries(fmt -Wl,--as-needed)
```

This is not supported by wasm-ld as of today.
This patch stop using it when compiling using emscripten.

Bug: https://github.com/fmtlib/fmt/issues/1736

Co-authored-by: gabime <gmelman1@mgail.com>

CMake Warning (dev) at /usr/share/cmake-3.17/Modules/GNUInstallDirs.cmake:225 (message):
  Unable to determine default CMAKE_INSTALL_LIBDIR directory because no
  target architecture is known.  Please enable at least one language before
  including GNUInstallDirs.