# gfortran: GNU Fortran (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0
# glibc:    ldd (Ubuntu GLIBC 2.39-0ubuntu8.7) 2.39
# -O0 libm symbols (THE REFERENCE):
U expf
U powf
# -O2 -ftree-vectorize (WRF's own phys/ setting):
U expf
U powf
# -Ofast -ftree-vectorize:
U cbrtf
U expf
U powf
# positive control (plain expf loop at -Ofast), proves the grep works:
U _ZGVbN4v_expf
U expf
