SHLIB {utils} | R Documentation

## Build Shared Object/DLL for Dynamic Loading

### Description

Compile the given source files and then link all specified object files into a shared object aka DLL which can be loaded into R using `dyn.load` or `library.dynam`.

### Usage

    R CMD SHLIB [options] [-o dllname] files

### Arguments

`files` | a list specifying the object files to be included in the shared object/DLL. You can also include the name of source files (for which the object files are automagically made from their sources) and library linking commands.
`dllname` | the full name of the shared object/DLL to be built, including the extension (typically ‘.so’ on Unix systems, and ‘.dll’ on Windows). If not given, the basename of the object is taken from the basename of the first file.
`options` | Further options to control the processing. Use `R CMD SHLIB --help` for a current list.

### Details

`R CMD SHLIB` is the mechanism used by `INSTALL` to compile source code in packages. It will generate suitable compilation commands for C, C++, ObjC(++) and Fortran sources: Fortran 90/95 sources can also be used but it may not be possible to mix these with other languages (on most platforms it is possible to mix with C, but mixing with C++ rarely works).

Please consult section ‘Creating shared objects’ in the manual ‘Writing R Extensions’ for how to customize it (for example to add `cpp` flags and to add libraries to the link step) and for details of some of its quirks.

Items in `files` with extensions ‘.c’, ‘.cpp’, ‘.cc’, ‘.C’, ‘.f’, ‘.f90’, ‘.f95’, ‘.m’ (ObjC), ‘.M’ and ‘.mm’ (ObjC++) are regarded as source files, and those with extension ‘.o’ as object files. All other items are passed to the linker.

Option -n (also known as --dry-run) will show the commands that would be run without actually executing them.

### Note

Some binary distributions of R have `SHLIB` in a separate bundle, e.g., an `R-devel` RPM.

### See Also

`COMPILE`, `dyn.load`, `library.dynam`.

The section on “Customizing compilation” in the “R Administration and Installation” manual (see the ‘doc/manual’ subdirectory of the R source tree).

The ‘R Installation and Administration’ and ‘Writing R Extensions’ manuals.

### Examples

    ## Not run:
    R CMD SHLIB -o mylib.so a.f b.f -L/opt/acml3.5.0/gnu64/lib -lacml

    ## End(Not run)

[Package utils version 2.15.1 Index]