Hi Dirk,<div><br></div><div>Thanks for the response - it was helpful. </div><div><br></div><div>I've added the library you suggested and the appropriate path, and now linking is fine. For completeness, my makevars.win now looks like this:</div>
<div><br></div><div><div>## Use the R_HOME indirection to support installations of multiple R version</div><div>## PKG_LIBS = $(shell "${R_HOME}/bin${R_ARCH_BIN}/Rscript.exe" -e "Rcpp:::LdFlags()")</div>
<div><br></div><div>PKG_LIBS = $("C:/PROGRA~1/R/R-2.13.1/library/Rcpp/lib/i386/libR.cpp.a")</div><div>PKG_LIBS+= -lRcpp</div><div>PKG_LIBS+= -LC:/PROGRA~1/R/R-213~1.1/library/Rcpp/libs/i386</div></div><div><br></div>
<div>Guess the approach can be prettified using the $(shell....) approach above and regular expressions, but I'm no expert on this.</div><div><br></div><div>Thanks again!</div><div><br></div><div>BR,</div><div>Bjørn</div>
<div><br></div><div><br></div><div><br><br><div class="gmail_quote">2011/9/8 Dirk Eddelbuettel <span dir="ltr"><<a href="mailto:edd@debian.org">edd@debian.org</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
Hi Bjørn,<br>
<br>
Welcome!<br>
<div class="im"><br>
On 8 September 2011 at 10:36, Bjørn Skogtrø wrote:<br>
| Hi guys.<br>
|<br>
| First off, thanks for a nice piece of software.<br>
|<br>
| Now to the issue at hand:<br>
|<br>
| I'm trying to compile and link the package obtained using Rcpp.package.skeleton<br>
| (...) (out of the box). I'm running R 2.13.1, with Rcpp 0.9.6 on a Windows XP<br>
| machine. <br>
|<br>
| The first problem I ran into was how the package-libs variable PKG_LIBS was<br>
| pasted into the g++ string for compiling:<br>
|<br>
| g++ -shared -s -static-libgcc -o processes.dll tmp.def rcpp_hello_world.o<br>
| rcpp_module.o C:/Program Files/R/R-2.13.1/library/Rcpp/lib/i386/libRcpp.a -LC:/<br>
| PROGRA~1/R/R-213~1.1/bin/i386 -lR<br>
| g++.exe: C:/Program: No such file or directory<br>
| g++.exe: Files/R/R-2.13.1/library/Rcpp/lib/i386/libRcpp.a: No such file or<br>
| directory<br>
| ERROR: compilation failed for package 'processes'<br>
| * removing 'D:/Documents/Eclipse/processes.Rcheck/processes'<br>
|<br>
| As you can see, paths with spaces in them is not cool.<br>
<br>
</div>Correct. The shell / Makefile quoting gets in the way.<br>
<br>
If someone comes with _reliable ways to improve this_ we'd be open for<br>
patches. Until then the recommendation is to not use directories with spaces.<br>
<div class="im"><br>
| I resolved this by overriding it in makevars.win by hard-coding it, so my makevars.win looks like<br>
<br>
</div>Good idea.<br>
<div><div></div><div class="h5"><br>
| ## Use the R_HOME indirection to support installations of multiple R version<br>
| ## PKG_LIBS = $(shell "${R_HOME}/bin${R_ARCH_BIN}/Rscript.exe" -e<br>
| "Rcpp:::LdFlags()")<br>
| PKG_LIBS = $("C:/PROGRA~1/R/R-2.13.1/library/Rcpp/lib/i386/libRcpp.a")<br>
|<br>
| Compiling then works fine, and spits out the files rcpp_module.o and<br>
| rcpp_hello_world.o. The problem then is linking, which complains over<br>
| "undefined reference":<br>
|<br>
| * installing *source* package 'processes' ...<br>
| ** libs<br>
| cygwin warning:<br>
| MS-DOS style path detected: C:/PROGRA~1/R/R-213~1.1/etc/i386/Makeconf<br>
| Preferred POSIX equivalent is: /cygdrive/c/PROGRA~1/R/R-213~1.1/etc/i386/<br>
| Makeconf<br>
| CYGWIN environment variable option "nodosfilewarning" turns off this<br>
| warning.<br>
| Consult the user's guide for more details about POSIX paths:<br>
| <a href="http://cygwin.com/cygwin-ug-net/using.html#using-pathnames" target="_blank">http://cygwin.com/cygwin-ug-net/using.html#using-pathnames</a><br>
| g++ -shared -s -static-libgcc -o processes.dll tmp.def rcpp_hello_world.o<br>
| rcpp_module.o -LC:/PROGRA~1/R/R-213~1.1/bin/i386 -lR<br>
| rcpp_hello_world.o:rcpp_hello_world.cpp:(.text+0x66): undefined reference to<br>
| `Rcpp::RObject::setSEXP(SEXPREC*)'<br>
| rcpp_hello_world.o:rcpp_hello_world.cpp:(.text+0x71): undefined reference to<br>
| `void Rcpp::internal::r_init_vector<16>(SEXPREC*)'<br>
| rcpp_hello_world.o:rcpp_hello_world.cpp:(.text+0x148): undefined reference to<br>
| `Rcpp::RObject::setSEXP(SEXPREC*)'<br>
| rcpp_hello_world.o:rcpp_hello_world.cpp:(.text+0x1a7): undefined reference to<br>
| `Rcpp::RObject::setSEXP(SEXPREC*)'<br>
|<br>
| I'm assuming that these two errors are somewhat related, but can't figure it<br>
| out (the compile processs running R CMD check is a bit intransparent to me). I<br>
| should mention that this exact procedure worked fine until I upgraded from<br>
| 2.13.0 to 2.13.1 yesterday.<br>
|<br>
| Any clues on what to look at??<br>
<br>
</div></div>Your PKG_LIBS appears to be wrong:<br>
<div class="im"><br>
g++ -shared -s -static-libgcc -o processes.dll tmp.def rcpp_hello_world.o<br>
rcpp_module.o -LC:/PROGRA~1/R/R-213~1.1/bin/i386 -lR<br>
<br>
</div>You need a -L part for a location, as well as -l part giving a library, eg<br>
<div class="im"><br>
g++ -shared -s -static-libgcc -o processes.dll tmp.def rcpp_hello_world.o<br>
</div> rcpp_module.o -LC:/PROGRA~1/R/R-213~1.1/bin/i386 -lRcpp -lR<br>
<br>
where I added -lRcpp.<br>
<br>
Hope this helps, Dirk<br>
<div class="im"><br>
| Thanks!<br>
|<br>
| BR,<br>
| Bjørn<br>
|<br>
|<br>
| --<br>
| Up, down, turn around<br>
| Please dont let me hit the ground<br>
| Tonight I think Ill walk alone<br>
| Ill find my soul as I go home.<br>
|<br>
</div>| ----------------------------------------------------------------------<br>
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<font color="#888888">--<br>
Two new Rcpp master classes for R and C++ integration scheduled for<br>
New York (Sep 24) and San Francisco (Oct 8), more details are at<br>
<a href="http://dirk.eddelbuettel.com/blog/2011/08/04#rcpp_classes_2011-09_and_2011-10" target="_blank">http://dirk.eddelbuettel.com/blog/2011/08/04#rcpp_classes_2011-09_and_2011-10</a><br>
<a href="http://www.revolutionanalytics.com/products/training/public/rcpp-master-class.php" target="_blank">http://www.revolutionanalytics.com/products/training/public/rcpp-master-class.php</a><br>
</font></blockquote></div><br><br clear="all"><div><br></div>-- <br>Up, down, turn around<br>Please dont let me hit the ground<br>Tonight I think Ill walk alone<br>Ill find my soul as I go home.<br>
</div>