* installing *source* package ‘brnn’ ... ** this is package ‘brnn’ version ‘0.9.4’ ** using staged installation ** libs using C compiler: ‘gcc-14 (Debian 14.2.0-19) 14.2.0’ gcc-14 -std=gnu23 -I"/home/hornik/tmp/R/include" -DNDEBUG -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fopenmp -I. -fpic -g -O2 -Wall -Wstrict-prototypes -pedantic -mtune=native -c Lanczos.c -o Lanczos.o Lanczos.c: In function ‘extreme_eigenvalues’: Lanczos.c:191:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] 191 | for (xx=0.0,zp=z,p0=zp+*n;zp