On Fri, Nov 13, 2020 at 7:53 AM Gordon McKay via Gcc-help < gcc-help@xxxxxxxxxxx> wrote: > Various libraries and headers are in sub-folders of src, for eample the > gsl headers > When I attempt to compile main.c which refere to the gsl headers in > INCLUDE statements with the sub-folder gsl and header name , a file not > found error is thrown. > I have tried everything to correct this apparenty simple problem. > You didn't provide enough details to reproduce. However, gsl is a common linux package. The program is probably expecting to find the headers in /usr/include/gsl. Try something like "sudo apt install libgsl-dev" to install the package so that the headers can be found. Not clear how you got gsl into a subfolder. I doubt that is part of the star-chart program. Jim
