[External] : Best way to have a system with openssl-1.1 and 3.0?

Thomas Dwyer III thomas.dwyer at oracle.com
Tue Sep 5 23:09:53 UTC 2023

On 9/5/23 10:58, Michael Brunnbauer wrote:
> But the Loader will alway prefer the libcurl.so.4 found under /usr/lib64
> to the one under /usr/curl_openssl1/lib. It seems having two libcurls with
> the same version number linked to different openssl version is not an option.

Doesn't -Wl,-rpath=/usr/... (in LD_FLAGS) cause the runtime linker to 
prefer that directory over /usr/lib64 when searching for the dependent 
libs? For example:

$ readelf -d /usr/local/bin/php-cgi | grep RPATH
  0x000000000000000f (RPATH)              Library rpath: [/usr/local/lib64]
$ ldd /usr/local/bin/php-cgi | grep libcurl
     libcurl.so.4 => /usr/local/lib64/libcurl.so.4 (0x00007facbfcf9000)
$ readelf -d /usr/local/lib64/libcurl.so.4 | grep RPATH
  0x000000000000000f (RPATH)              Library rpath: 
$ ldd /usr/local/lib64/libcurl.so.4 | grep libcrypto
     libcrypto.so.3 => /usr/local/openssl3/lib64/libcrypto.so.3 

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