I am trying to install RMySQL on my Windows 7 Professional x64 machine using R-2.15.1, RTools 2.16 (also tried 2.15), and MySQL 5.5.
I have copied libmysql.dll and libmysql.lib into mysql\lib\opt and \bin. I have also copied libmysql.dll into R-2.15.1\bin.
I have set Renviron.site properly as confirmed by Sys.getenv('MYSQL_HOME') using both the 8.3 nomenclature as well as non-8.3 nomenclature.
Sample output for Sys.getenv('MYSQL_HOME') is "C:/Program Files/MySQL/MySQL Server 5.5/" (quotes included). When I use 8.3 nomenclature it also is correct.
Here is the relevant part of my PATH:
c:\Rtools\bin;c:\Rtools\gcc-4.6.3\bin;C:\Program Files\MySQL\MySQL Server 5.5\lib\opt;c:\program file\R\R-2.15.1\bin;
I have manually inserted it into the registry in the right location (because the MySQL 5.5 doesn't do that properly - it only puts it under the Wow6432Node) AND I inserted it into the system variables to deal with this error:
Error in utils::readRegistry("SOFTWARE\MySQL AB", hive = "HLM", maxdepth = 2) :Registry key 'SOFTWARE\MySQL AB' not found
I even tried
Sys.setenv('MYSQL_HOME=C:/Program Files/MySQL/MySQL Server 5.5/')
However, when I try to install RMySQL I get the following error:
checking for $MYSQL_HOME... not found... searching registry...
cygwin warning:
MS-DOS style path detected: C:/PROGRA~1/R/R-215~1.1/bin/x64/Rscript
Preferred POSIX equivalent is: /cygdrive/c/PROGRA~1/R/R-215~1.1/bin/x64/Rscript
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
Try setting MYSQL_HOME to one of the following (you may have to use the non-8dot3 file name):
ERROR: configuration failed for package 'RMySQL'
If I am understanding the error properly, it can't find MYSQL_HOME, even though it calls it properly using Sys.getenv, is located in the proper location in the registry, AND is a system variable.