Dear List - I'm working to get a package of mine that was archived last year back on to CRAN. The epanet2toolkit provides an R interface to the EPANET simulation engine that is written in C. The latest development version of the package builds and checks ok on mac and linux but fails to compile and install on windows with a bunch of errors like: undefined reference to `_imp__*` where * is some function defined in a header file and implemented in the corresponding source file. Am i missing a compiler flag or something? Current output from winbuilder : https://win-builder.r-project.org/9aIcl8Fxu7w1/00install.out or https://pastebin.com/8JQNpNKp source code: https://github.com/bradleyjeck/epanet2toolkit/tree/v22dev Any insights appreciated. Brad
[R-pkg-devel] compiling C sources on windows
3 messages · Kevin Ushey, Brad Eck
I suspect the cause is this: https://github.com/bradleyjeck/epanet2toolkit/blob/aa698568ab85db133f8634928e8cfe661b41ed57/src/epanet2.h#L42-L61 Usually, you only need to explicitly use __declspec if you're compiling with MSVC -- it shouldn't be necessary when using a MinGW toolchain (as R's toolchain is). You could try adding something like: #ifdef __MINGW32__ #define DLLEXPORT #endif If you need to test locally on Windows, there are free virtual machines available here: https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/ Best, Kevin
On Mon, Apr 19, 2021 at 2:14 AM Brad Eck <bradleyjeck at gmail.com> wrote:
Dear List - I'm working to get a package of mine that was archived last year back on to CRAN. The epanet2toolkit provides an R interface to the EPANET simulation engine that is written in C. The latest development version of the package builds and checks ok on mac and linux but fails to compile and install on windows with a bunch of errors like: undefined reference to `_imp__*` where * is some function defined in a header file and implemented in the corresponding source file. Am i missing a compiler flag or something? Current output from winbuilder : https://win-builder.r-project.org/9aIcl8Fxu7w1/00install.out or https://pastebin.com/8JQNpNKp source code: https://github.com/bradleyjeck/epanet2toolkit/tree/v22dev Any insights appreciated. Brad [[alternative HTML version deleted]]
______________________________________________ R-package-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
Thanks Kevin, that fixed the compilation issue. On to the next! Brad
On Mon, Apr 19, 2021 at 5:06 PM Kevin Ushey <kevinushey at gmail.com> wrote:
I suspect the cause is this: https://github.com/bradleyjeck/epanet2toolkit/blob/aa698568ab85db133f8634928e8cfe661b41ed57/src/epanet2.h#L42-L61 Usually, you only need to explicitly use __declspec if you're compiling with MSVC -- it shouldn't be necessary when using a MinGW toolchain (as R's toolchain is). You could try adding something like: #ifdef __MINGW32__ #define DLLEXPORT #endif If you need to test locally on Windows, there are free virtual machines available here: https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/ Best, Kevin On Mon, Apr 19, 2021 at 2:14 AM Brad Eck <bradleyjeck at gmail.com> wrote:
Dear List - I'm working to get a package of mine that was archived last year back on
to
CRAN. The epanet2toolkit provides an R interface to the EPANET simulation
engine
that is written in C. The latest development version of the package builds and checks ok on mac and linux but fails to compile and install on windows with a bunch of errors like: undefined reference to `_imp__*` where * is some function defined in a header file and implemented in the corresponding source file. Am i missing a compiler flag or something? Current output from winbuilder : https://win-builder.r-project.org/9aIcl8Fxu7w1/00install.out or https://pastebin.com/8JQNpNKp source code: https://github.com/bradleyjeck/epanet2toolkit/tree/v22dev Any insights appreciated. Brad [[alternative HTML version deleted]]
______________________________________________ R-package-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel