pi@raspberrypi:~/Downloads/ClassiCube-master/src $ gcc *.c -o ClassiCube -lx11 -lpthread -lGL -lm -lcurl -lopenal -ldl
Chat.c: In function ‘Chat_OpenLog’:
Chat.c:125:27: warning: assignment makes integer from pointer without a cast [-Wint-conversion]
  Chat_LogStream.Meta.File = NULL;
                           ^
ExtMath.c: In function ‘Math_AbsI’:
ExtMath.c:11:36: warning: implicit declaration of function ‘abs’ [-Wimplicit-function-declaration]
 int   Math_AbsI(int x)    { return abs(x); /* MSVC intrinsic */ }
                                    ^~~
LWidgets.c:1053:20: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
  LTable_MouseDown, LTable_StopDragging,  /* Select */
                    ^~~~~~~~~~~~~~~~~~~
LWidgets.c:1053:20: note: (near initialization for ‘ltable_VTABLE.OnUnselect’)
Platform.c: In function ‘Platform_TextDraw’:
Platform.c:1186:9: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
   glyph = glyphs[(uint8_t)text.buffer[i]];
         ^
Platform.c:1196:30: warning: passing argument 2 of ‘FT_Get_Glyph’ from incompatible pointer type [-Wincompatible-pointer-types]
    FT_Get_Glyph(face->glyph, &glyph); /* TODO: Check error */
                              ^
In file included from Platform.c:14:0:
freetype/ftglyph.h:235:3: note: expected ‘struct FT_GlyphRec_ **’ but argument is of type ‘struct FT_BitmapGlyphRec_ **’
   FT_Get_Glyph( FT_GlyphSlot  slot,
   ^~~~~~~~~~~~
Platform.c:1197:36: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
    glyphs[(uint8_t)text.buffer[i]] = glyph;
                                    ^
Program.c: In function ‘main’:
Program.c:135:48: warning: passing argument 2 of ‘Platform_GetCommandLineArgs’ from incompatible pointer type [-Wincompatible-pointer-types]
  argsCount = Platform_GetCommandLineArgs(argc, argv, args);
                                                ^~~~
In file included from Program.c:2:0:
Platform.h:50:6: note: expected ‘const char **’ but argument is of type ‘char **’
 int  Platform_GetCommandLineArgs(int argc, STRING_REF const char** argv, String* args);
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Resources.c: In function ‘SoundPatcher_DecodeAudio’:
Resources.c:617:24: warning: passing argument 2 of ‘Stream_Write’ from incompatible pointer type [-Wincompatible-pointer-types]
  res = Stream_Write(s, ctx, 44);
                        ^~~
In file included from Resources.c:6:0:
Stream.h:46:12: note: expected ‘const uint8_t * {aka const unsigned char *}’ but argument is of type ‘struct VorbisState *’
 ReturnCode Stream_Write(struct Stream* s, const uint8_t* buffer, uint32_t count);
            ^~~~~~~~~~~~
Resources.c:631:25: warning: passing argument 2 of ‘Stream_Write’ from incompatible pointer type [-Wincompatible-pointer-types]
   res = Stream_Write(s, samples, count * 2);
                         ^~~~~~~
In file included from Resources.c:6:0:
Stream.h:46:12: note: expected ‘const uint8_t * {aka const unsigned char *}’ but argument is of type ‘int16_t * {aka short int *}’
 ReturnCode Stream_Write(struct Stream* s, const uint8_t* buffer, uint32_t count);
            ^~~~~~~~~~~~
Screens.c: In function ‘GeneratingScreen_Render’:
Screens.c:680:37: warning: passing argument 2 of ‘String_AppendConst’ discards ‘volatile’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  String_AppendConst(&s->MessageStr, state);
                                     ^~~~~
In file included from Screens.h:3:0,
                 from Screens.c:1:
String.h:106:13: note: expected ‘const char *’ but argument is of type ‘const volatile char *’
 CC_API void String_AppendConst(String* str, const char* src);
             ^~~~~~~~~~~~~~~~~~
Stream.c: In function ‘Stream_FileClose’:
Stream.c:98:15: warning: assignment makes integer from pointer without a cast [-Wint-conversion]
  s->Meta.File = NULL;
               ^
Stream.c: In function ‘Stream_WriteLine’:
Stream.c:505:6: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  cur = Platform_NewLine;
      ^
String.c: In function ‘String_FromReadonly’:
String.c:29:21: warning: passing argument 1 of ‘String_Init’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  return String_Init(buffer, len, len);
                     ^~~~~~
In file included from String.c:1:0:
String.h:28:25: note: expected ‘char *’ but argument is of type ‘const char *’
 static CC_INLINE String String_Init(STRING_REF char* buffer, int length, int capacity) {
                         ^~~~~~~~~~~
Window.c: In function ‘Window_RefreshBorders’:
Window.c:896:58: warning: passing argument 12 of ‘XGetWindowProperty’ from incompatible pointer type [-Wincompatible-pointer-types]
   xa_cardinal, &prop_type, &prop_format, &items, &after, &borders);
                                                          ^
In file included from Window.c:749:0:
/usr/include/X11/Xlib.h:2676:12: note: expected ‘unsigned char **’ but argument is of type ‘long int **’
 extern int XGetWindowProperty(
            ^~~~~~~~~~~~~~~~~~
Window.c: In function ‘Window_Create’:
Window.c:998:2: warning: implicit declaration of function ‘XkbSetDetectableAutoRepeat’ [-Wimplicit-function-declaration]
  XkbSetDetectableAutoRepeat(win_display, true, &supported);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~
Window.c: In function ‘Window_GetWindowHandle’:
Window.c:1052:45: warning: return makes pointer from integer without a cast [-Wint-conversion]
 void* Window_GetWindowHandle(void) { return win_handle; }
                                             ^~~~~~~~~~
Window.c: In function ‘Window_GetWindowState’:
Window.c:1062:33: warning: passing argument 12 of ‘XGetWindowProperty’ from incompatible pointer type [-Wincompatible-pointer-types]
   &prop_format, &items, &after, &data);
                                 ^
In file included from Window.c:749:0:
/usr/include/X11/Xlib.h:2676:12: note: expected ‘unsigned char **’ but argument is of type ‘Atom ** {aka long unsigned int **}’
 extern int XGetWindowProperty(
            ^~~~~~~~~~~~~~~~~~
Window.c: In function ‘Window_ProcessEvents’:
Window.c:1349:23: warning: passing argument 7 of ‘XChangeProperty’ from incompatible pointer type [-Wincompatible-pointer-types]
      PropModeReplace, data, 2);
                       ^~~~
In file included from Window.c:749:0:
/usr/include/X11/Xlib.h:2068:12: note: expected ‘const unsigned char *’ but argument is of type ‘Atom * {aka long unsigned int *}’
 extern int XChangeProperty(
            ^~~~~~~~~~~~~~~
/usr/bin/ld: cannot find -lx11
collect2: error: ld returned 1 exit status