Cmake within msys2 not able to find openssl

Question

I've installed openssl into msys2 using pacman:

pacman -S openssl

However Cmake (within msys2) is still not able to find openssl libraries...

CMake Error at C:/Langs/msys64/mingw64/share/cmake-3.9/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the
system variable OPENSSL_ROOT_DIR (missing: OPENSSL_CRYPTO_LIBRARY)

What are the proper values for OPENSSL_ROOT_DIR and/or OPENSSL_CRYPTO_LIBRARY? I've tried everything I can find inside msys that contains openssl libraries.

/mingw64/include/openssl/  
/mingw64/bin/  
/mingw64/

Answer 1

Turns out the issue was that the end of the cmake command had:

-D MSYS2_FOLDER=c:/msys64

Which was the default. But the proper value for my system was:

-D MSYS2_FOLDER=c:/langs/msys64

the proper value for OPENSSL_ROOT_DIR was:

c:/langs/msys64/mingw64