Inconsistency detected by ld.so: dl-close.c: 764: _dl_close: Assertion `map->l_init_c

I'm using Quartus Prime Pro and Standard with the latest updates, and this issue still persists. The problem lies within the curl libraries packaged in $QUARTUS_ROOTDIR/linux64. I was able to remove ALL Quartus errors/warnings by backing up libccl_curl_drl.so, libcrypto.so.1.0.0, libcurl.so.4, libssl.so.1.0.0 and then deleting them.

sudo cp libccl_curl_drl.so libccl_curl_drl.so.bak
sudo cp libcrypto.so.1.0.0 libcrypto.so.1.0.0.bak
sudo cp libcurl.so.4 libcurl.so.4.bak
sudo libssl.so.1.0.0.bak
sudo rm libccl_curl_drl.so libcrypto.so.1.0.0 libcurl.so.4 libssl.so.1.0.0

This worked for me and allowed me to complete OpenCL compilation (finally). I also had some GLIBCXX errors, which were resolved by following the same process on libstdc++.so.6.

sudo cp libstdc++.so.6 libstdc++.so.6.bak
sudo rm libstdc++.so.6

You may need to then add the i386 architecture (if on 64 Bit) and install the libraries to your system that you just removed from here. I don't remember all the commands I ran to complete this, so you may need to search a bit to find the appropriate apt-get commands to install what you removed. I fought with this issue for a week before finally working it all out!