[Gretl-devel] Re: gretl crash
On Tue, 1 Mar 2022, Allin Cottrell wrote:
I think I see what's happening. On my system I have the
environment variable R_HOME set to "/opt/R/lib64/R". I guess in
your case that variable is not set. So I suspect the following: if
you pass the actual path to libR.so, gretl can infer where R_HOME
is and all is OK. If you pass a symlink and R_HOME is NOT set, R
doesn't know where its files are and gretl can't help.
Anyway, it seems clear that the crash is in libR.so, which can't
find "Renviron" under the stated conditions: called via symlink
with R_HOME undefined. Maybe gretl could help with some fancy
footwork, using the OS to resolve a libR symlink.
That "fancy footwork" is now in git. We detect the case where the
user-specified path to libR.so is a symlink; resolve the symlink to
find the "real" path to libR.so; use that path to figure out where
R_HOME is; and put the correct value of R_HOME into the environment
so that libR can find the files without which it will crash.
I tested this on Fedora Linux, after removing R_HOME from my
environment and replacing the "real" libR location in my gretl
Preferences with the path to a symlink in /usr/local/lib.
Allin