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# Copyright (C) 2010 - 2021 Dirk Eddelbuettel and Romain Francois
#
# This file is part of Rcpp.
#
# Rcpp is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# Rcpp is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
## make sure system.file returns an absolute path
Rcpp.system.file <- function(...){
tools::file_path_as_absolute( base::system.file( ..., package = "Rcpp" ) )
}
## quote path if non-standard characters are used
Rcpp.quoteNonStandard <- function(path) {
## On unix, check if path has only characters that do not need quoting
noquote <- .Platform$OS.type == "unix" && grepl("^[[:alnum:]/._~+@%-]*$", path)
## If no quoting needed return unchanged else quote input
if (noquote) path else shQuote(path)
}
## Use R's internal knowledge of path settings to find the lib/ directory
## plus optinally an arch-specific directory on system building multi-arch
RcppLdPath <- function() {
#.Deprecated(msg=paste("This function is now deprecated as it has not",
# "been needed since 2013."))
""
}
## Provide linker flags -- i.e. -L/path/to/libRcpp -- as well as an
## optional rpath call needed to tell the Linux dynamic linker about the
## location. This is not needed on OS X where we encode this as library
## built time (see src/Makevars) or Windows where we use a static library
## Updated Jan 2010: We now default to static linking but allow the use
## of rpath on Linux if static==FALSE has been chosen
## Note that this is probably being called from LdFlags()
## Updated Nov 2013: We no longer build a library. This should be deprecated.
RcppLdFlags <- function() {
#.Deprecated(msg=paste("This function is now deprecated as it has not",
# "been needed since 2013."))
""
}
# indicates if Rcpp was compiled with GCC >= 4.3
canUseCXX0X <- function() { TRUE } # .Call( "canUseCXX0X", PACKAGE = "Rcpp" )
## Provide compiler flags -- i.e. -I/path/to/Rcpp.h
RcppCxxFlags <- function(cxx0x=FALSE) {
path <- Rcpp.system.file( "include" )
if (.Platform$OS.type=="windows") {
path <- asBuildPath(path) # #nocov
}
paste0('-I', Rcpp.quoteNonStandard(path))
}
## Shorter names, and call cat() directly
## CxxFlags defaults to no using c++0x extensions are these are considered non-portable
CxxFlags <- function(cxx0x=FALSE) {
#.Deprecated(msg=paste("This function is now deprecated as R uses minimally",
# "viable compilers om all platforme."))
cat(RcppCxxFlags(cxx0x=cxx0x)) # #nocov
}
## LdFlags defaults to static linking on the non-Linux platforms Windows and OS X
LdFlags <- function() {
cat(RcppLdFlags())
}
# capabilities
RcppCapabilities <- capabilities <- function() .Call( rcpp_capabilities )
# compile, load and call the cxx0x.c script to identify whether
# the compiler is GCC >= 4.3
RcppCxx0xFlags <- function() {
#.Deprecated(msg=paste("This function is now deprecated as R uses minimally",
# "viable compilers om all platforme."))
script <- Rcpp.system.file( "discovery", "cxx0x.R" ) # #nocov start
flag <- capture.output( source( script ) )
flag
}
Cxx0xFlags <- function() {
cat(RcppCxx0xFlags()) # #nocov end
}
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