My nobuild.c file that I use for hadela. Just a reference for myself :)

nobuild.c

#include <stdio.h>
#include <string.h>
#define NOBUILD_IMPLEMENTATION
#include "./my_nobuild.h"
#include <stdlib.h>

#define CFLAGS "-Wall -Wextra -std=c89 -pedantic"

char* getAllCFiles() {
   const char** fileList;
   char* files;
   int numFiles, totalLength, it;

   numFiles = 0;
   totalLength = 0;
   FOREACH_FILE_IN_DIR(cFile, "src", {
         if (strlen(cFile) > 2) {
         numFiles ++;
         totalLength += strlen(cFile) + 5;
         }
         });
   fileList = (const char**)malloc(sizeof(const char**)*numFiles);
   files = (char*)calloc(sizeof(char*), totalLength);

   it = 0; 
   FOREACH_FILE_IN_DIR(cFile, "src", {
         if (strlen(cFile) > 2) {
         fileList[it++] = cFile;
         }
         });

   for (it = 0; it < numFiles; it++) {
      char* temp = (char*)fileList[it];
      strcat(files, "src/");
      strcat(files, temp);
      if (it != numFiles - 1) strcat(files, " ");
   }

   free(fileList);
   return files;
}

int main(int argc, char* argv[]) {
   const char* cFiles;
   const char* cc = "gcc";
   int debug = 0;

   GO_REBUILD_URSELF(argc, argv);
   if (argc > 1) {
      for (int i=0; i < argc; i++) {
         if (! strcmp(argv[i], "debug")) {
            debug = 1;
         } else if (! strcmp(argv[i], "-cc")) {
            cc = argv[i+1];
            i++;
         }
      }
   }

   cFiles = getAllCFiles();
   // CMD(cc, (debug ? CFLAGS " -ggdb" : CFLAGS), "-o", PATH("bin", "hademac"), cFiles);
   // CMD(cc, cFiles, CFLAGS, "-o", PATH("bin", "hademac"));
   CMD(cc, cFiles, (debug ? CFLAGS " -ggdb" : CFLAGS), "-o", PATH("bin", "hademac"));

   return 0;
}