backports

Reimplementations of Functions Introduced Since R-3.0.0

v1.5.1 · Apr 2, 2026 · GPL-2 | GPL-3

Description

Functions introduced or changed since R v3.0.0 are re-implemented in this package. The backports are conditionally exported in order to let R resolve the function name to either the implemented backport, or the respective base version, if available. Package developers can make use of new functions or arguments by selectively importing specific backports to support older installations.

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CRAN Check Status

2 WARNING

12 OK

Show all 14 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	WARNING	40.4s
r-devel-linux-x86_64-debian-gcc	OK	32.1s
r-devel-linux-x86_64-fedora-clang	OK	63.3s
r-devel-linux-x86_64-fedora-gcc	OK	59.3s
r-devel-macos-arm64	OK	23s
r-devel-windows-x86_64	OK	75s
r-oldrel-macos-arm64	OK
r-oldrel-macos-x86_64	OK	34s
r-oldrel-windows-x86_64	OK	73s
r-patched-linux-x86_64	WARNING	37s
r-release-linux-x86_64	OK	34.8s
r-release-macos-arm64	OK	24s
r-release-macos-x86_64	OK	42s
r-release-windows-x86_64	OK	65s

Check details (2 non-OK)

WARNING r-devel-linux-x86_64-debian-clang

compiled code

File ‘backports/libs/backports.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVar’
This entry point may be removed soon:
‘Rf_findVar’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

WARNING r-patched-linux-x86_64

compiled code

File ‘backports/libs/backports.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVar’
This entry point may be removed soon:
‘Rf_findVar’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

Check History

WARNING 9 OK · 4 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE Mar 20, 2026

NOTE r-devel-linux-x86_64-debian-clang

compiled code

File ‘backports/libs/backports.so’:
  Found non-API call to R: ‘Rf_findVar’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

WARNING r-devel-linux-x86_64-debian-gcc

compiled code

File ‘backports/libs/backports.so’:
  Found non-API call to R: ‘Rf_findVar’
This entry point may be removed soon.

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

NOTE r-devel-linux-x86_64-fedora-clang

compiled code

File ‘backports/libs/backports.so’:
  Found non-API call to R: ‘Rf_findVar’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

NOTE r-devel-linux-x86_64-fedora-gcc

compiled code

File ‘backports/libs/backports.so’:
  Found non-API call to R: ‘Rf_findVar’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

NOTE r-devel-windows-x86_64

compiled code

File 'backports/libs/x64/backports.dll':
  Found non-API call to R: 'Rf_findVar'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.

NOTE 13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 16, 2026

NOTE r-devel-linux-x86_64-debian-gcc

compiled code

File ‘backports/libs/backports.so’:
  Found non-API call to R: ‘Rf_findVar’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (49)

imports

BatchExperiments BatchJobs MatchIt OpenML ParamHelpers SMDIC SpaDES.tools base64url batchtools bibtex brms broom checkmate cleaner crossmap dm exiftoolr incase jlmerclusterperm lintr lmw marginaleffects mcboost mlr mlr3 mlr3cluster mlr3db mlr3filters mlr3misc mlr3oml mlr3pipelines mlr3summary mlr3torch mlrCPO mlrMBO mlrintermbo nlmixr2est paradox prt ricu riskmetric rtika rxode2 simstudy spaMM tfautograph

suggests

did ggpackets summarytools

Dependency Network

Version History

updated 1.5.1 ← 1.5.0 diff Apr 3, 2026

new 1.5.0 Mar 10, 2026

updated 1.5.0 ← 1.4.1 diff May 22, 2024

updated 1.4.1 ← 1.4.0 diff Dec 12, 2021

updated 1.4.0 ← 1.3.0 diff Nov 22, 2021

updated 1.3.0 ← 1.2.1 diff Oct 26, 2021

updated 1.2.1 ← 1.2.0 diff Dec 8, 2020

updated 1.2.0 ← 1.1.10 diff Nov 1, 2020

updated 1.1.10 ← 1.1.9 diff Sep 15, 2020

updated 1.1.9 ← 1.1.8 diff Aug 23, 2020

updated 1.1.8 ← 1.1.7 diff Jun 16, 2020

updated 1.1.7 ← 1.1.6 diff May 12, 2020

updated 1.1.6 ← 1.1.5 diff Apr 4, 2020

updated 1.1.5 ← 1.1.4 diff Oct 1, 2019

updated 1.1.4 ← 1.1.3 diff Apr 9, 2019

updated 1.1.3 ← 1.1.2 diff Dec 13, 2018

updated 1.1.2 ← 1.1.1 diff Dec 12, 2017

updated 1.1.1 ← 1.1.0 diff Sep 25, 2017

updated 1.1.0 ← 1.0.5 diff May 21, 2017

updated 1.0.5 ← 1.0.4 diff Jan 17, 2017