2 NOTES FOR UNIX LIKE PLATFORMS
3 =============================
5 For Unix/POSIX runtime systems on Windows, please see NOTES.WIN.
8 Shared libraries and installation in non-standard locations
9 -----------------------------------------------------------
11 Binaries on Unix variants expect to find shared libraries in standard
12 locations, such as /usr/lib, /usr/local/lib and some other locations
13 configured in the system (for example /etc/ld.so.conf on some systems).
14 If the libraries are installed in non-standard locations, binaries
15 will not find them and therefore fail to run unless they get a bit of
16 help from a defined RPATH or RUNPATH. This can be applied by adding
17 the appropriate linker flags to the configuration command, such as
18 this (/usr/local/ssl was the default location for OpenSSL installation
19 in versions before 1.1.0):
21 $ ./config --prefix=/usr/local/ssl --openssldir=/usr/local/ssl \
22 -Wl,-rpath,/usr/local/ssl/lib
24 Because the actual library location may vary further (for example on
25 multilib installations), there is a convenience variable in Makefile
26 that holds the exact installation directory and that can be used like
29 $ ./config --prefix=/usr/local/ssl --openssldir=/usr/local/ssl \
30 -Wl,-rpath,'$(LIBRPATH)'