libXext.so.6 not found -Quartus on RHEL64

Question

Hi,

I have installed the linux version of Quartus-ii 6.1 on a server running – RHEL6.3 64bit. I downloaded the install-able from Altera website.

I get the following errror when I invoke quartus --64bit, same with quartus (32bit):

quartus: error while loading shared libraries: libXext.so.6: cannot open shared object file: No such file or directory

I can see this library in /usr/lib64 folder.

Any idea?

Regards,

Satish

altera_forum · Answer

The error message would imply that quartus is using dlopen(), two options:

1) It doesn't look in /usr/lib64 for libXext.so.6

2) Some library that libXext.so.6 has a 'NEEDED' entry for doesn't exist.

If it is failing on startup, brute force dubugging might be easiest!

Use 'strace' to monitor all the system calls and see exactly where it looks for what before reporting the error.

You should be able to use LD_LIBRARY_PATH (or add some symbolic links) to make it all work.

altera_forum · Answer

Thanks, I got this fixed and now I am stuck with: Segmentation fault error....

altera_forum · Answer

ulimit -C unlimited and run gdb on the core file. System call trace might also help again.

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