• using R Under development (unstable) (2025-10-03 r88899)
• using platform: x86_64-pc-linux-gnu
• R was compiled by     Debian clang version 19.1.7 (7)     Debian flang-new version 19.1.7 (7)
• running under: Debian GNU/Linux forky/sid
• using session charset: UTF-8
• checking for file ‘igraph/DESCRIPTION’ ... OK
• this is package ‘igraph’ version ‘2.1.4’
• package encoding: UTF-8
• checking CRAN incoming feasibility ... [8s/10s] OK
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking whether package ‘igraph’ can be installed ... OK See the install log for details.
• used C compiler: ‘Debian clang version 19.1.7 (7)’
• used C++ compiler: ‘Debian clang version 19.1.7 (7)’
• checking package directory ... OK
• checking for future file timestamps ... OK
• checking ‘build’ directory ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking code files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... [1s/1s] OK
• checking whether the package can be loaded with stated dependencies ... [1s/1s] OK
• checking whether the package can be unloaded cleanly ... [1s/1s] OK
• checking whether the namespace can be loaded with stated dependencies ... [0s/0s] OK
• checking whether the namespace can be unloaded cleanly ... [1s/1s] OK
• checking loading without being on the library search path ... [1s/1s] OK
• checking whether startup messages can be suppressed ... [1s/1s] OK
• checking use of S3 registration ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [70s/83s] OK
• checking Rd files ... [7s/8s] OK
• checking Rd metadata ... OK
• checking Rd line widths ... OK
• checking Rd cross-references ... OK
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking line endings in shell scripts ... OK
• checking line endings in C/C++/Fortran sources/headers ... OK
• checking line endings in Makefiles ... OK
• checking compilation flags in Makevars ... OK
• checking for GNU extensions in Makefiles ... OK
• checking for portable use of $(BLAS_LIBS) and $(LAPACK_LIBS) ... OK
• checking use of PKG_*FLAGS in Makefiles ... OK
• checking use of SHLIB_OPENMP_*FLAGS in Makefiles ... OK
• checking pragmas in C/C++ headers and code ... OK
• checking compilation flags used ... OK
• checking compiled code ... NOTE File ‘igraph/libs/igraph.so’:   Found non-API call to R: ‘Rf_allocSExp’ 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.
• checking installed files from ‘inst/doc’ ... OK
• checking files in ‘vignettes’ ... OK
• checking examples ... [15s/19s] OK
• checking for unstated dependencies in ‘demo’ ... OK
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [130s/67s] OK   Running ‘testthat.R’ [129s/66s]
• checking for unstated dependencies in vignettes ... OK
• checking package vignettes ... OK
• checking re-building of vignette outputs ... [21s/32s] OK
• checking PDF version of manual ... [68s/89s] OK
• checking HTML version of manual ... [35s/57s] OK
• checking for non-standard things in the check directory ... OK
• DONE

Status: 1 NOTE