Hi,

On a Win7 64 bit, I have installed:
*R-15.0 and I am running it in 64bits
*Rtools215.exe*MySQL 5.5.23 64bits

My PATH start with D:\BenSave\Rtools\bin;D:\BenSave\Rtools\MinGW64\bin;D:\BenSave\R\R-2.15.0\bin;D:\BenSave\Rtools\MinGW\bin;D:\BenSave\Rtools\gcc-4.6.3\bin;


Note that I place MinGW64\bin has I want the package in 64 bits, so just in case it helps...


To install RMySQL 64 bits, I then followed the steps described in http://stackoverflow.com/questions/4785933/adding-rmysql-package-to-r-fails, namely:

	1. Install latest RTools from http://cran.r-project.org/bin/windows/Rtools/
	2. install MySQL or header and library files of mysql
	3. create or edit file C:\Program Files\R\R-2.15\etc\Renviron.site and add line like MYSQL_HOME=C:/mysql (path to your mysql files)
	4. copy libmysql.lib from mysql/lib to mysql/lib/opt to meet dependencies.
	5. copy libmysql.dll to C:\Program Files\R\R-2.15\bin directory.
	6. run install.packages('RMySQL',type='source') and wait while compilation will end.

> install.packages('RMySQL', type = 'source')
--- Please select a CRAN mirror for use in this session ---
trying URL 'http://cran.ma.imperial.ac.uk/src/contrib/RMySQL_0.9-3.tar.gz'
Content type 'application/x-gzip' length 165363 bytes (161 Kb)
opened URL
downloaded 161 Kb

* installing *source* package 'RMySQL' ...
** package 'RMySQL' successfully unpacked and MD5 sums checked
checking for $MYSQL_HOME... D:/MySQL/forR55
** libs
Warning: this package has a non-empty 'configure.win' file,
so building only the main architecture

gcc -m64 -I"D:/BenSave/R/R-215~1.0/include" -DNDEBUG -I"D:/MySQL/forR55"/include    -I"d:/RCompile/CRANpkg/extralibs64/local/include"     -O2 -Wall  -std=gnu99 -mtune=core2 -c RS-DBI.c -o RS-DBI.o
RS-DBI.c:1:0: sorry, unimplemented: 64-bit mode not compiled in
make: *** [RS-DBI.o] Error 1
ERROR: compilation failed for package 'RMySQL'
* removing 'D:/BenSave/R/R-2.15.0/library/RMySQL'

The downloaded source packages are in
        ‘C:\Users\Bvinsonneau\TempFolder\RtmpwPJoVe\downloaded_packages’
Warning messages:
1: running command 'D:/BenSave/R/R-2.15.0/bin/x64/R CMD INSTALL -l "D:/BenSave/R/R-2.15.0/library"   C:\Users\BenSave\TempFolder\RtmpwPJoVe/downloaded_packages/RMySQL_0.9-3.tar.gz' had status 1 
2: In install.packages("RMySQL", type = "source") :
  installation of package ‘RMySQL’ had non-zero exit status
> 



I seems to have the same error than the reporter on

http://r.789695.n4.nabble.com/Installing-RMySQL-64-bit-Windows-7-td4466352.html
and Prof Brian Ripley suggests that the reporter should re-read the the instructions in 'R Installation and 
Administration'. I did so but no luck. I am not sure what I am missing. 

Does anyone have a suggestion?

Regards,

Ben
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