coin@COIN_MAJOR_VERSION@.lib has been linked with the multithread dynamic C library (msvcrt.dll - the /MD compiler option) and was compiled without debug tests and symbol information.
coin@COIN_MAJOR_VERSION@d.lib has been linked with the multithread dynamic debug C library (msvcrtd.dll) and was compiled with debug tests and symbol information.
When using Cygwin (or another Bourne shell for MS Windows), you can run the coin-config script with the option --alternate=<configuration-name> to decide which Coin configuration to retrieve information for.