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Why does the OpenSSL compilation fail on Alpha Tru64 Unix?

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Why does the OpenSSL compilation fail on Alpha Tru64 Unix?

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On some Alpha installations running Tru64 Unix and Compaq C, the compilation of crypto/sha/sha_dgst.c fails with the message ‘Fatal: Insufficient virtual memory to continue compilation.’ As far as the tests have shown, this may be a compiler bug. What happens is that it eats up a lot of resident memory to build something, probably a table. The problem is clearly in the optimization code, because if one eliminates optimization completely (-O0), the compilation goes through (and the compiler consumes about 2MB of resident memory instead of 240MB or whatever one’s limit is currently). There are three options to solve this problem: 1. set your current data segment size soft limit higher. Experience shows that about 241000 kbytes seems to be enough on an AlphaServer DS10. You do this with the command ‘ulimit -Sd nnnnnn’, where ‘nnnnnn’ is the number of kbytes to set the limit to. 2. If you have a hard limit that is lower than what you need and you can’t get it changed, you can compile all o

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