link against a legacy library: -lgfortranbegin from a premade makefile
问题 I got some trouble trying to compile a programm developed by some researcher supposed to compute in a very precise way fourier transform and some other useful operation scientific paper here, whereas all the files needed and the makefile are provided. I use gcc and a version of ubuntu available on windows10 (18.04), so, I linked all the librabries needed by the program and called in the pre-made makefile (fftw, lapack, gfortran..) everything is ok untill here, but once I tried to compile I