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Environment Variables
The SGI_ABI environment variable can be used to specify whether you want a 32-bit or 64-bit compilation environment. It is overridden by use of the -32 or -64 option on the command line. The usage of other compiler environment variables is the same between the 32-bit and 64-bit compiler systems. Special care should be taken in using the following two environment variables.
- _RLD_PATH
- Used to override the default runtime 32-bit linker
- _RLD64_PATH
- Used to override the default runtime 64-bit linker
Using the wrong _RLD*_PATH can cause 64-bit code to try to use 32-bit .so's. For the most part, staying with the defaults is the best policy.
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