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Asked: 2026-05-31T22:51:18+00:00

I wrote a small application on Redhat Linux 6 using g++ 4.4.6. After compilation,

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I wrote a small application on Redhat Linux 6 using g++ 4.4.6. After compilation, I received an error

/usr/bin/ld: cannot find -lcrypto

I did a search for the crypto library and find them here,

[root@STL-DUNKEL01 bin]# find / -name libcrypto*
/usr/lib64/libcrypto.so.0.9.8e
/usr/lib64/libcrypto.so.10
/usr/lib64/libcrypto.so.6
/usr/lib64/libcrypto.so.1.0.0

My question is whether the compilation error is caused by /usr/bin/ld not having /usr/lib64/ in the search path? If yes, how can I add it?

Thanks.

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1 Answer

  1. Editorial Team

    You can provide the directories to search for the libraries in as a parameter to gcc like so -L<directory_to_search_in>. And note that there can be multiple parameters to -L. Also, are you trying to build a 32-bit application or a 64-bit one?

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