Error building Seacas on Tioga with cce 18

[JStewart28]

Hello. I'm trying to install Seacas version 2024-06-27 on Tioga with the cce@18 compiler with Spack. I need Seacas 2024-06-27 as a dependency for the VTK library. My spack command is: spack install seacas@2024-06-27 %cce@18. However, I get the following error, which I believe is due to using cce as a compiler:

/opt/cray/pe/cce/18.0.1/binutils/x86_64/x86_64-pc-linux-gnu/bin/ld: ../../libraries/suplib/libsuplib.so.2.0: undefined reference to `_idmax_'
/opt/cray/pe/cce/18.0.1/binutils/x86_64/x86_64-pc-linux-gnu/bin/ld: ../../libraries/suplib/libsuplib.so.2.0: undefined reference to `_idmin_'

The "Required Software" section of the Seacas README claims that for building Seacas, "The C compiler must support the C11 standard and C++ must support C++17. GNU, Clang, Intel, Cray, compilers are supported and tested regularly." I presume that testing includes cce 18. Can anyone provide support on how to fix this error and get Seacas installed? Thank you.

[gsjaardema]

Take a look at #307. This is caused by the cray library adding blas calls, but then spack removes the blas library from the link line. The blas dependency isn't from seacas, it is from the cray compiler inserting blas calls.

I think the referenced issue shows how to fix. If not clear let me know.,

[JStewart28]

Thanks @gsjaardema! #301 is very helpful. I got Seacas installed by adding the "hnopattern" flag, following the recommendations in the thread: seacas@2024-06-27 %cce@18 fflags="-hnopattern"