preprocessor #error fix
preprocessor #error fix

in order for the code to compile (even without atomic operations
implemented) we had to convert pragma error to pragma warning.
TODO: atomic operations should be implemented using platform
specific API.

EvgeneOskin/oce,Tech-XCorp/oce,tpaviot/oce,EvgeneOskin/oce,BenoitPerrot/oce,mathstuf/oce,Tridify/oce,heartvalve/oce,heartvalve/oce,finetjul/oce,BenoitPerrot/oce,tpaviot/oce,BenoitPerrot/oce,EvgeneOskin/oce,Tridify/oce,BenoitPerrot/oce,mathstuf/oce,mathstuf/oce,Tridify/oce,finetjul/oce,finetjul/oce,EvgeneOskin/oce,mathstuf/oce,Tridify/oce,finetjul/oce,heartvalve/oce,heartvalve/oce,tpaviot/oce,mathstuf/oce,Tech-XCorp/oce,Tech-XCorp/oce,tpaviot/oce,BenoitPerrot/oce,Tech-XCorp/oce,Tech-XCorp/oce,heartvalve/oce,Tridify/oce,EvgeneOskin/oce,tpaviot/oce,finetjul/oce