how to install c compiler for eclipse

[rss81]

I installed mingw64 and downloaded eclipse for c/c++. I added c:\msys64\ming64\bin to my path environment variable. When I try to run c project hello.c I get the following error:

20:11:49 **** Rebuild of configuration Debug for project hello ****
Info: Configuration "Debug" uses tool-chain "MinGW GCC" that is unsupported on this system, attempting to build anyway.
Info: Internal Builder is used for build
gcc -O0 -g3 -Wall -c -fmessage-length=0 -o "src\hello.o" "..\src\hello.c"
Cannot run program "gcc": Launching failed

I can't find any clear documentation to resolve this. I'm running windows 10 pro

[jantje]

What does your OS say when you run the command from the command prompt?

[rsail]

What command should I run in the os?

[jantje]

The command CDT wants to run and returns with an error. In this case that would be
gcc -O0 -g3 -Wall -c -fmessage-length=0 -o "src\hello.o" "..\src\hello.c"

[jld01]

The mingw-w64-x86_64-toolchain is installed under the mingw64 folder.
The mingw-w64-ucrt-x86_64-toolchain is installed under the ucrt64 folder.

[rss81]

can someone please provide complete step by step instructions on how to install a c compiler to work with eclipse? Why the heck is this so hard to find clear information on how to do this.

[rss81]

It seems now I getting unresolved inclusion for all my *.h files and EXIT_SUCCESS could not be resolved. here's the actual program:

/*
 ============================================================================
 Name        : hello.c
 Author      : RS
 Version     :
 Copyright   : Your copyright notice
 Description : Hello World in C, Ansi-style
 ============================================================================
 */

#include <stdio.h>
#include <stdlib.h>

int main(void) {
	printf("!!!Hello World!!!"); /* prints !!!Hello World!!! */
	return EXIT_SUCCESS;
}

[rss81]

ok making some progress, I have the following screenshot:

I have the MinGW added to the preprocessor (treat as built in, contains system headers). EXIT_SUCCESS looks resolved now but I still can't resolve my h files.

[rss81]

EXIT_SUCCESS still not resolved! wow, this is really painful