* installing *source* package ‘seqminer’ ...
** this is package ‘seqminer’ version ‘9.7’
** package ‘seqminer’ successfully unpacked and MD5 sums checked
** using staged installation
'config' variable 'CXX11' is defunct
'config' variable 'CXX11STD' is defunct
'config' variable 'CXX11FLAGS' is defunct
configure: CC = clang -mmacos-version-min=26 -std=gnu23
configure: CFLAGS = -falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wstrict-prototypes
configure: CXX =  
configure: CXXFLAGS = 
checking whether the C++ compiler works... no
configure: error: in `/Users/ripley/R/packages/tests-devel/seqminer':
configure: error: C++ compiler cannot create executables
See `config.log' for more details
ERROR: configuration failed for package ‘seqminer’
* removing ‘/Users/ripley/R/packages/tests-devel/seqminer.Rcheck/seqminer’