[Bug 1754294] Re: After last updated libcurl3 on libcurl4, some apps are removed.

[noabody]

I'm re-posting this comment I made on the ngemu forums as it is related.

These strings are present in compiled epsxe_x64 (hex-edit).
```
libcurl.so.4.curl_easy_init.curl_easy_setopt.curl_easy_cleanup.curl_easy_perform.CURL_OPENSSL_3
```

It lists the expected soname (libcurl.so.4) along with the symbol
version (CURL_OPENSSL_3).

Installed libcurl4_7.58.0-2ubuntu3_amd64.deb:
```
readelf -Ws /usr/lib/x86_64-linux-gnu/libcurl.so.4 | grep curl_version
  397: 0000000000024980  172 FUNC  GLOBAL DEFAULT  13 curl_version_info@@CURL_OPENSSL_4
  405: 0000000000024800  372 FUNC  GLOBAL DEFAULT  13 curl_version@@CURL_OPENSSL_4
```

Conflicting libcurl3 package libcurl3_7.58.0-2ubuntu2_amd64.deb:
```
readelf -Ws libcurl.so.4 | grep curl_version
  389: 0000000000024700  172 FUNC    GLOBAL DEFAULT  13 curl_version_info@@CURL_OPENSSL_3
  397: 0000000000024580  372 FUNC    GLOBAL DEFAULT  13 curl_version@@CURL_OPENSSL_3
```

A work-around would be to extract libcurl.so.4.5.0 (from libcurl3_7.58.0-2ubuntu2_amd64.deb) into the same folder as epsxe_x64, sym-link or rename it to libcurl.so.4, then run epsxe from a terminal with command:
```
LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH ./epsxe_x64
```

I toyed with other solutions but didn't want to mess up system libraries
when ldconfig eventually caches the symbols.

Could also use ldd to get same info as hex-editor.
```
ldd epsxe_x64 | grep -i curl
./epsxe_x64: /usr/lib/x86_64-linux-gnu/libcurl.so.4: version `CURL_OPENSSL_3' not found (required by ./epsxe_x64)
    libcurl.so.4 => /usr/lib/x86_64-linux-gnu/libcurl.so.4 (0x00007fee19108000)
```

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to curl in Ubuntu.
https://bugs.launchpad.net/bugs/1754294

Title:
  After last updated libcurl3 on libcurl4, some apps are removed.

Status in curl package in Ubuntu:
  Confirmed

Bug description:
  Hi!

  After last updated libcurl3 on libcurl4, system (Kubuntu 18.04 bionic) deleted such applications as:
  virtualbox-5.2
  opera-stable
  slack-desktop

  I really need these applications, I installed them with broken
  dependencies, but they are deleted after each update. Is it possible
  to make the dependence of the libcurl3 in libcurl4, and not remove it
  altogether from system?

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/curl/+bug/1754294/+subscriptions