close 67416 thanks (The above is for the Debbugs control bot. The bug-guix@ address is for reporting shortcomings in Guix. For general support, please use help-guix@. I've moved this discussion there.)
Hi Pierre, It appears that you haven't given the package a FORTRAN compiler to find. Try (native-inputs (list gfortran)) to add one to the build environment. Do not waste time 'guix install'ing anything, this will have 0 effect. If the build system still won't find gfortran, try (arguments `( ... #:phases (modify-phases %standard-phases (add-before 'configure 'find-gfortran (lambda _ (setenv "FC" (which "gfortran")))))) or so. Untested example, assuming the compiler binary is also named 'gfortran'. Kind regards, T G-R Sent on the go. Excuse or enjoy my brevity.