[R] Building Rmysql Source in Windows XP: DLLTOOL can't find DEF file

From: <mark.lopresti_at_thomson.com>
Date: Wed 26 Oct 2005 - 06:47:19 EST

Hello everyone,

I have a question regarding building the Rmysql packages from source in Windows.

I am currently using: Windows XP, R-2.2.0, Mysql 3.23

I have installed all of the tools from Installation and Administration and after following all the instructions to the letter, I compiled the binary and installed R 2.2.0 from source with no issues. This is the first time I have compiled the source R and the first time I have attempted building a package from source.

When I read all of the RMySQL docs for creating the packages from source, (Installation and Admin and all the 'readme' docs in the package itself), there really seem to be only 2 basic instructions:

1) Ensure the paths are correct in src/Makevars.win
2) re-import the DLL
3) and then build.

I ensure that my paths are correct in the src/Makevars.win file and then the 2nd part of the instructions discusses "re-importing" the libmysql.dll.

However, when I use the Dlltool in the correct Mysql directory (c:\mysql\lib\opt) as directed, an error occurs below:

                   "dlltool: can't open the def file: Libmysql.def"

The "libmysql.def" file is located in the "c:\mysql\include\" directory where PKG-CPPFLAGS is pointing.

Question (1)------------ Do you know of why this is occurring and how can I solve it?
I could not find any documentation in Google or in the archives regarding this error.

Then finally, the last instructions uses "Rcmd build -binary RMySQL". Question (2)------------ In what directory is this windows command line given? Under R/src/gnuwin32/?

Thank you so much for your time and any suggestions would be greatly appreciated.



Mark A. LoPresti
Senior Quantitative Analyst
Thomson Financial
Phone: 301-545-4630
Email: mark.lopresti@thomson.com
Web: www.thomson.com/financial

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