RcppParallel/man/flags.Rd at bugfix/tbb-cpp20-concepts-guard · RcppCore/RcppParallel

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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/flags.R
\name{flags}
\alias{flags}
\alias{RcppParallelLibs}
\alias{LdFlags}
\alias{CxxFlags}
\title{Compilation flags for RcppParallel}
RcppParallelLibs()
Returns \code{NULL}, invisibly. These functions are called for
their side effects (writing the associated flags to stdout).
\description{
Output the compiler or linker flags required to build against RcppParallel.
These functions are typically called from \code{Makevars} as follows:\preformatted{PKG_LIBS += $(shell "$\{R_HOME\}/bin/Rscript" -e "RcppParallel::LdFlags()")
On Windows, the flags ensure that the package links with the built-in TBB
library. On Linux and macOS, the output is empty, because TBB is loaded
dynamically on load by \code{RcppParallel}.
\R packages using RcppParallel should also add the following to their
\code{NAMESPACE} file:\preformatted{importFrom(RcppParallel, RcppParallelLibs)
This is necessary to ensure that \pkg{RcppParallel} (and so, TBB) is loaded
and available.

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