FAQ: What happened to the ArcSDE C API ras81 library?
What happened to the ArcSDE C API ras81 library?
Starting with ArcSDE 8.1.2, the ArcSDE C API ras81 raster function library is not part of the ArcSDE C SDK. The functions available in the ras81 library have been moved into the sg81 library.
ArcSDE C API applications compiled and linked with ArcSDE 8.1.2, and higher, only need to link with the sg81 library to access the raster functions. Because most applications already use the sg81 library, this will not pose a problem for most developers.
On some platforms, ArcSDE 8.1.2 still contains the ras81 library. Because this copy of the ras81 library contains the 8.1.1 version of the library, it should not be used.