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I'm trying to compile the UMFPACK for Windows using the Cygwin compiler following the steps provided in the following documentation: https://github.com/PetterS/SuiteSparse/tree/master/UMFPACK

However, when I run the make command after several minutes I get an error indicating

.../x86_64-pc-cygwin/bin/ld: cannot find -lblas
.../x86_64-pc-cygwin/bin/ld: cannot find -lgfortran

knowing that I edited the UMFPACK_CONFIG = -DNBLAS in the SuiteSparse_config/SuiteSparse_config.mk.

I tried to search for similar problems on google but I couldn't find any working solution.

screenshot of the error giving by cygwin after make of UMFPACK

Vladimir F Героям слава
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Hussein Hazime
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  • Can you compile a Fortran Hello world program? – Vladimir F Героям слава Oct 19 '17 at 13:43
  • it means your environment is missing certain libraries. I'm afraid I don't know enough about Cygwin, but this error under Linux usually means that (a) either the library isn't installed, or (b) the library wasn't found by the loader. – Ælex Oct 19 '17 at 13:54
  • cygwin already has the umfpack library. Why do you need to build your own ? https://sourceware.org/ml/cygwin-announce/2016-03/msg00073.html – matzeri Oct 19 '17 at 15:22
  • @matzeri how can i use the builtin library in a c++ project i'm working on ? how can i include it in my project resources ? – Hussein Hazime Oct 19 '17 at 21:25
  • Install the `libumfpack-devel` and `libumfpack1` packages. They includes the import libraries and the header of Umfpack. – matzeri Oct 20 '17 at 10:08
  • @matzeri thank you, I used the cygwin to download the packages mentioned, but I have only one question, can I build the downloaded packages into a .dll file which i can use when releasing my application. – Hussein Hazime Oct 23 '17 at 08:52

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