On 17 June 2017 at 21:32, Guillaume Chapron wrote:
| I am trying to debug some C code that is run only through a R package. I
debug with lldb but I always get a message telling that the package "was
compiled with optimization - stepping may behave oddly; variables may not be
available.” And in fact, I cannot evaluate all variables and understand what is
wrong. I have created a Makevars file in ~/.R/ that contains C=clang -O0 -g but
it does not seem to change much. What should I do to make sure I can evaluate
all variables in lldb? I am on a Mac and I wrote C=clang because I read that it
produced much better error messages but I am happy to use gcc as well if this
can be a solution.
Edit the file Makeconf in e.g.
R> file.path(Sys.getenv("R_HOME"), "etc", "Makeconf")
[1] "/usr/lib/R/etc/Makeconf"
R>
It has those settings hardwired from when R itself was compiled for you. You
probably want to keep a copy of the original file to be able to revert.
Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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