Berkeley DB Reference Guide: Building Berkeley DB for UNIX systems

OSF/1

1. I can't compile and run multi-threaded applications.

   Special compile-time flags are required when compiling threaded applications on OSF/1. If you are compiling a threaded application, you must compile with the _REENTRANT flag:

   cc -D_REENTRANT ...

   The Berkeley DB library will automatically build with the correct options.

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