Thanks Prof. Brain, Following your suggestion I found the reason of my problem in the document ''R Installation and Administration' and the links it points to'.
After I updated to R2.6.2, the RTools's default compiler chaged to gcc4 while I was using 3.4.x. The error disappeared after I installed gcc4 and the default settings from RTools works well now. Have a nice day! Sun "Prof Brian Ripley" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Using 'mingw32-make' indicates that you have not followed the instructions > accurately. You *must* have the Rtools/bin directory ahead of all other > tools in your PATH. > > Please check again (and again) that you have followed the prescription in > 'R Installation and Administration'. > > On Wed, 19 Mar 2008, sun wrote: > >> I got errors when I tried to compile my code into dll on XP box. >> >> "C:/R/R-2.6.2/src/gnuwin32/MkRules:235: warning: overriding commands for >> target `.c.d' >> C:/R/R-2.6.2/src/gnuwin32/MkRules:223: warning: ignoring old commands for >> target `.c.d' >> C:/R/R-2.6.2/src/gnuwin32/MkRules:255: warning: overriding commands for >> target `.c.o' >> C:/R/R-2.6.2/src/gnuwin32/MkRules:243: warning: ignoring old commands for >> target `.c.o' >> mingw32-make: *** No rule to make target `''.o', needed by `'''. Stop." >> >> So I decide to try the example in "writing R extensions" c++ code example >> x.hh,x.cc and xmain.cc, I compiled with "r cmd shlib x.cc xmain.cc" and >> got >> the same error output: >> "mingw32-make: *** No rule to make target `x.cc''. Stop." >> >> I was able to compile dll before, since then I have updated R, installed >> other softwares, so I am a bit confusing at this moment what would be the >> cause of this problem. Could some please give some suggestions? Thanks >> in >> advance. >> >> Sun >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > -- > Brian D. Ripley, [EMAIL PROTECTED] > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ > University of Oxford, Tel: +44 1865 272861 (self) > 1 South Parks Road, +44 1865 272866 (PA) > Oxford OX1 3TG, UK Fax: +44 1865 272595 > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.