Epiar, fix build with Clang

[nemysis]

Hello i'm FreeBSD maintainer for Epiar

http://www.freshports.org/games/epiar/

Build failures with Clang have I solved with these patches

cat files/patch-Source-Engine-console.cpp 
--- Source/Engine/console.cpp.orig      2012-10-27 10:18:51.000000000 +0200
+++ Source/Engine/console.cpp   2013-09-14 21:18:05.000000000 +0200
@@ -79,7 +79,6 @@
                                        break;
                                        case SDLK_RETURN:
                                        case SDLK_KP_ENTER:
-                                       case '\n': // this shouldn't be necessary but on os x the two above it don't seem to catch
                                                RunCommand();
                                        break;
                                        case SDLK_BACKSPACE:

cat files/patch-Source-Lua-src-lauxlib.c 
--- Source/Lua/src/lauxlib.c.orig       2012-10-27 10:18:51.000000000 +0200
+++ Source/Lua/src/lauxlib.c    2013-09-14 20:20:41.000000000 +0200
@@ -575,7 +575,7 @@
     lf.f = fopen(filename, "rb");  /* reopen in binary mode */
     if (lf.f == NULL) return errfile(L, "reopen", fnameindex);
     /* skip eventual `#!...' */
-   while ((c = getc(lf.f)) != EOF && c != LUA_SIGNATURE[0]) ;
+   while ((c = getc(lf.f)) != EOF && c != LUA_SIGNATURE[0])
     lf.extraline = 0;
   }
   ungetc(c, lf.f);

cat files/patch-Source-UI-ui_dropdown.cpp 
--- Source/UI/ui_dropdown.cpp.orig      2012-10-27 10:18:51.000000000 +0200
+++ Source/UI/ui_dropdown.cpp   2013-09-15 01:48:22.000000000 +0200
@@ -178,7 +178,7 @@
 }

 string Dropdown::GetText(){
-       if(( selected < 0) || (selected >= options.size()) ) {
+       if(selected >= options.size()) {
                // Invalid selection, likely because this is an empty dropdown list.
                return "";
        }

cat files/patch-Source-Utilities-log.cpp 
--- Source/Utilities/log.cpp.orig       2012-10-27 10:18:51.000000000 +0200
+++ Source/Utilities/log.cpp    2013-10-11 00:14:27.000000000 +0200
@@ -10,6 +10,7 @@
 #include "common.h"
 #include "Utilities/log.h"
 #include "Engine/hud.h"
+#include <unistd.h>

 /**\class Log
  * \brief Main logging facilities for the code base. */

Please add these patches in next Version 0.5.2.