...
We are aware that some users have encountered difficulties installing xidl, but we have not been able to verify this on every possible platform. If you have encountered a problem or found a solution for a particular configuration, please add a comment to this wiki so that we can pass along your information to future users.
- Problem: On some architectures IDL reports problems loading shared execuable libraries using call_external, possibly from 32 versus 64 bit architecture conflicts.
- Solution: The SDSS idlutils package only runs in 32 bit mode, so you need to start idl using the "idl -32" command. Also, xidl will compile by default into 64 bit mode unless you tell it otherwise. To force xidl to compile in 32 bit mode, go into $XIDL_DIR/src/Makefile. Add option "-m32" to both the CFLAGS line and also right after the $(X_LD_FLAGS) field in the line starting with $(LD).
...