[QE-developers] building gpu version on rhel 9

[Lee Latham]

Hi there,
I'm sorry if this isn't the right venue to ask but I can't seem to find
anything more appropriate.  I'm getting an odd configure failure telling me
my compiler is too old...but, which one?  I can't identify a typical
compiler that is even close to the version number required.  Any input
would be appreciated!  some output below:

checking whether cc accepts -g... yes
checking for cc option to accept ISO C89... none needed
setting CC... cc
setting CFLAGS... -O3
using F90... gfortran
setting FFLAGS... -O3 -g -fallow-argument-mismatch -fopenmp
setting F90FLAGS... $(FFLAGS) -cpp -fopenmp
setting FFLAGS_NOOPT... -O0 -g
setting CPP... cpp
setting CPPFLAGS... -P -traditional -Uvector
setting LD... gfortran
setting LDFLAGS... -g -pthread -fopenmp
configure: WARNING: Compiler version too old, use at least 21.7
configure: error: Compiler version too old, use at least 21.7
[root at pn1tb qe-7.5]# gcc --version
gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


[root at pn1tb qe-7.5]# gfortran --version
GNU Fortran (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


[root at pn1tb qe-7.5]# cc --version
cc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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