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31 lines
1.2 KiB
Plaintext
31 lines
1.2 KiB
Plaintext
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NOTES FOR UNIX LIKE PLATFORMS
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=============================
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For Unix/POSIX runtime systems on Windows, please see NOTES.WIN.
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Shared libraries and installation in non-standard locations
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-----------------------------------------------------------
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Binaries on Unix variants expect to find shared libraries in standard
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locations, such as /usr/lib, /usr/local/lib and some other locations
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configured in the system (for example /etc/ld.so.conf on some systems).
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If the libraries are installed in non-standard locations, binaries
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will not find them and therefore fail to run unless they get a bit of
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help from a defined RPATH or RUNPATH. This can be applied by adding
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the appropriate linker flags to the configuration command, such as
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this (/usr/local/ssl was the default location for OpenSSL installation
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in versions before 1.1.0):
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$ ./config --prefix=/usr/local/ssl --openssldir=/usr/local/ssl \
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-Wl,-rpath,/usr/local/ssl/lib
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Because the actual library location may vary further (for example on
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multilib installations), there is a convenience variable in Makefile
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that holds the exact installation directory and that can be used like
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this:
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$ ./config --prefix=/usr/local/ssl --openssldir=/usr/local/ssl \
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-Wl,-rpath,'$(LIBRPATH)'
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