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I have Cygwin installed on my WIndows box. I am trying to install a program that requires gfortran to build. I found a few solutions mentioned previously such as apt-cyg gcc4-gfortran to install the fortran compiler. When I do this, with a working internet connection, I get the error message 'unable to locate package gcc4-gfortran'. If I leave off the gcc4- part, I get the same error message. While the previous solution worked 6 years ago for another user, it is not - apparently - working for me. Can anyone suggest a solution for this repetitive problem? Thanks

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### I am trying to install a program that requires gfortran to build

The latest Cygwin Fortran package is gcc-fortran-7.3.0-3.

gcc-fortran: GNU Compiler Collection (Fortran)

2018-06-26 17:34           0 usr/bin/f95 -> gfortran.exe
2018-06-26 17:43      934931 usr/bin/gfortran.exe
2018-06-26 17:43           0 usr/bin/x86_64-pc-cygwin-gfortran.exe -> usr/bin/gfortran.exe
2018-06-26 17:34           0 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/
2018-06-26 17:31        9702 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/ieee_arithmetic.mod
2018-06-26 17:31        2208 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/ieee_exceptions.mod
2018-06-26 17:31        1251 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/ieee_features.mod
2018-06-26 17:34       15411 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/omp_lib.f90
2018-06-26 17:34        5335 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/omp_lib.h
2018-06-26 17:34        2981 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/omp_lib.mod
2018-06-26 17:34         610 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/omp_lib_kinds.mod
2018-06-26 17:34       28053 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/openacc.f90
2018-06-26 17:34        3466 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/openacc.mod
2018-06-26 17:34         484 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/openacc_kinds.mod
2018-06-26 17:34       12388 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/finclude/openacc_lib.h
2018-06-26 18:58    20222483 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/f951.exe
2018-06-26 17:31      210238 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/libcaf_single.a
2018-06-26 17:31    13307770 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/libgfortran.a
2018-06-26 17:31     1050584 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/libgfortran.dll.a
2018-06-26 17:31         269 usr/lib/gcc/x86_64-pc-cygwin/7.3.0/libgfortran.spec
2018-06-26 17:28      187195 usr/share/info/gfortran.info.gz
2018-06-26 17:28       22196 usr/share/man/man1/gfortran.1.gz

Source https://cygwin.com/cgi-bin2/package-cat.cgi?file=x86_64%2Fgcc-fortran%2Fgcc-fortran-7.3.0-3&grep=fortran

This package can be installed using the Cygwin install program.

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