A request for help


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Here the output.

cc -v

Apple LLVM version 8.1.0 (clang-802.0.42)
Target: x86_64-apple-darwin16.7.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

gfortran -v

Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/local/gfortran/libexec/gcc/x86_64-apple-darwin16/6.3.0/lto-wrapper
Target: x86_64-apple-darwin16
Configured with: ../gcc-6.3.0/configure --prefix=/usr/local/gfortran --enable-languages=c,c++,fortran,objc,obj-c++ --build=x86_64-apple-darwin16 --with-gmp=/Users/fx/devel/gcc/deps-static/x86_64 --with-mpfr=/Users/fx/devel/gcc/deps-static/x86_64 --with-mpc=/Users/fx/devel/gcc/deps-static/x86_64 --with-isl=/Users/fx/devel/gcc/deps-static/x86_64
Thread model: posix
gcc version 6.3.0 (GCC)

which gfortran

/usr/local/bin/gfortran

which cc

/usr/bin/cc


Exactly I used home-brew to have gfortran. How can I recompile from scratch?