Fixes for building on Linux

.vscode/c_cpp_properties.json

@@ -20,9 +20,9 @@
                 "${workspaceFolder}",
                 "${workspaceFolder}/src/"
             ],
-            "intelliSenseMode": "clang-x64",
-            "compilerPath": "/usr/bin/clang",
-            "cStandard": "c11",
+            "intelliSenseMode": "linux-gcc-x64",
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "c17",
             "cppStandard": "c++17"
         },
         {

.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+    "files.associations": {
+        "time.h": "c",
+        "signal.h": "c",
+        "execinfo.h": "c",
+        "dlfcn.h": "c",
+        "siginfo_t.h": "c"
+    }
+}

src/util.c

@@ -5,6 +5,7 @@
 #include <string.h>
 #include <time.h>
 
+#include <stdlib.h>
 #include "util.h"
 
 /////////////////////////////
@@ -78,6 +79,7 @@ void Time_Pause(int pausa) {
 	} while (tend >= t);
 }
 #else
+#include <sys/time.h>
 /////////////////////////////
 // Time_GetTime
 //
@@ -249,6 +251,7 @@ void Exceptions_Init() {}
 #include <dlfcn.h>
 #include <execinfo.h>
 #include <memory.h>
+#include <unistd.h>
 
 void Exception_Signal(int senhal, siginfo_t *info, void *ptr) {
 	int kill_self = 0;