Update: make some linux specific changes

examples/example1/build.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+if [[ ! -d "./build" ]]; then
+    mkdir build
+fi
+
+if [[ $1 == "--setup" ]]; then
+    git submodule update --init
+    pushd "./external/raylib/"
+    cmake -S . -B build
+    cmake --build build
+    popd
+fi
+
+pushd "./build"
+gcc -g "../example1.c" -o "example1" -I"../external/raylib/build/raylib/include/" -L"../external/raylib/build/raylib/" -lraylib -lGL -lm -lpthread -ldl -lrt -lX11
+
+if [[ $1 == "--run" ]] && [[ $? == 0 ]]; then
+    ./example1
+fi
+popd

test/main.c

@@ -33,7 +33,7 @@ int main(void) {
 	printf("%llu\n", MinMemorySize);
 #endif
 
-#ifdef UNIX
+#ifdef __unix__
     printf("%lu\n", MinMemorySize);
 #endif