don't build new compiler toolchain by default

help/Building.md

@@ -14,7 +14,7 @@ Start the build system.
 
     ./start.sh
 
-Follow the on-screen instructions to build a cross compiler.
+The compiler toolchain will be downloaded.
 
 Once complete, you can test the operating system in an emulator. 
 * If you have Qemu and KVM installed, run `k` in the build system. **Recommended!**

util/automation/build_minimal.sh

@@ -15,6 +15,4 @@ echo "Dependency.stb_image=0"           >> bin/config.ini
 echo "Dependency.stb_image_write=0"     >> bin/config.ini
 echo "Dependency.stb_sprintf=0"         >> bin/config.ini
 echo "Dependency.FreeTypeAndHarfBuzz=0" >> bin/config.ini
-./start.sh get-source prefix https://github.com/nakst/build-gcc/releases/download/gcc-11.1.0/gcc-x86_64-essence.tar.xz
-./start.sh setup-pre-built-toolchain
 ./start.sh build-optimised

util/build.c

@@ -1966,7 +1966,15 @@ int main(int _argc, char **_argv) {
 	const char *runFirstCommand = NULL;
 
 	if (CallSystem("" TOOLCHAIN_PREFIX "-gcc --version > /dev/null 2>&1 ")) {
+#if 0
 		BuildCrossCompiler();
+#else
+		fprintf(stderr, "Downloading the compiler toolchain...\n");
+		DoCommand("get-source-checked 700205f81c7a5ca3279ae7b1fdb24e025d33b36a9716b81a71125bf0fec0de50 "
+				"prefix https://github.com/nakst/build-gcc/releases/download/gcc-11.1.0/gcc-x86_64-essence.tar.xz");
+		DoCommand("setup-pre-built-toolchain");
+		AddCompilerToPath();
+#endif
 		runFirstCommand = "b";
 		foundValidCrossCompiler = true;
 	}