R Under development (unstable) (2025-10-01 r88895 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library(testthat)
> library(cpp4r)
> 
> test_check("cpp4r")
Makevars and/or Makevars.win should have a line such as 'PKG_CPPFLAGS = -I../inst/include'
DESCRIPTION should not have lines such as 'LinkingTo: cpp4r'
Makevars and/or Makevars.win should have a line such as 'PKG_CPPFLAGS = -I../inst/include'
DESCRIPTION should not have lines such as 'LinkingTo: cpp4r'
[ FAIL 0 | WARN 0 | SKIP 4 | PASS 90 ]

══ Skipped tests (4) ═══════════════════════════════════════════════════════════
• On CRAN (4): 'test-register.R:64:5', 'test-register.R:74:5',
  'test-register.R:521:5', 'test-register.R:543:5'

[ FAIL 0 | WARN 0 | SKIP 4 | PASS 90 ]
> 
> proc.time()
   user  system elapsed 
   2.89    0.59    3.42