Hi Peter I found the answer.

For Mac to run MinGW. Just install Xcode in terminal using xcode-select --install

In the Mathematica program ,delete: $CCompiler = {"Compiler" -> CCompilerDriverGenericCCompilerGenericCCompiler, "CompilerInstallation" -> "C:\MinGW", "CompilerName" -> "gcc.exe"};

The resulting code for the compiler is:

Clear["Global*"]; Needs["CCompilerDriverGenericCCompiler`"]; CompileOptions = {CompilationTarget -> "C", RuntimeOptions -> {"CatchMachineOverflow" -> False, "CatchMachineUnderflow" -> False, "CatchMachineIntegerOverflow" -> False, "CompareWithTolerance" -> False, "EvaluateSymbolically" -> False, "RuntimeErrorHandler" -> Evaluate, "WarningMessages" -> False}, CompilationOptions -> {"InlineExternalDefinitions" -> True, "InlineCompiledFunctions" -> True, "ExpressionOptimization" -> True}};

Just run it.

Thats it!

Thanks for your help also Peter! Regards Adrian

Is there any reason why you insist on setting up gcc instead of using the native compiler on macOS, i.e. clang, which comes with Xcode and requires zero configuration to get it working in Mathematica?

I know, I actually tried to use it once for cross-compiling ... but it seemed more helpful to say that there isn't, since OP doesn't want to cross-compile.

There is no MinGW for macOS. You need to install Xcode from the Mac App Store instead. Once it's installed start it, and allow it to install the command line tools. Finally, test that clang (the compiler on macOS) works in a terminal.

After this, it will work with Mathematica without any special setup (i.e. do not create a special configuration).

Just try the examples for the CCompilerDriver package.

Hi Peter, the compile sheet does not show error.

I need to cross check on my windows computer to see if the other sheet that requires this compilation to run is working properly.

I will write again.

Regards Adrian

Hi peter im not sure if you mean to check it this way. I checked in terminal Adrian-MM:~ user$ gcc --version Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/usr/include/c++/4.2.1 Apple LLVM version 10.0.1 (clang-1001.0.46.4) Target: x86_64-apple-darwin18.5.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin Adrian-MM:~ user$

Hi Peter I tried your suggestion but it didn’t work either and gave the same error.