R comes with it's own copy of zlib so even if it is compiled into R, there isn't necessarily a system-wide installation of the library. You may still need to install it.

-roger

Xander Meadow wrote:
Hi,

I've got a Dual G5 running 10.3.7 and I'm trying to install RMySQL. I've already got R up and running. When I try the command


install.packages("RMySQL")


It downloads a few things and then produces the following error:
---------------------------
Configuration error:
Could not locate the library "libz" required by MySQL.
INSTRUCTIONS:
The "libz" library is required by the MySQL client library
in order to compress/uncompress connections between clients
and the MySQL engine.
Make sure you have "libz" installed properly and/or included
in your $LD_LIBRARY_PATH. Perhaps it is not in any of the
standard directories (e.g., /usr/lib/, /usr/local/lib)?
Aborting the installation of RMySQL.
ERROR: configuration failed for package 'RMySQL'
----------------------------


However, if I check for libz I get:


capabilities("libz")

libz TRUE

I'm not sure what the problem is because R is telling me that it doesn't
know where libz is, but then it's also telling me it does know where
libz is.

Has anyone else seen this problem or know how I can get RMySQL installed
on my machine?

Just as an added note I know that install.packages works because


install.packages("DBI")


worked without a problem.

Thanks again.

-Xander

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