diff -r 0998a43cc155 -r ca99a81745fe src/Platform-Posix.cpp
--- a/src/Platform-Posix.cpp	Sat Dec 29 00:55:38 2012 -0800
+++ b/src/Platform-Posix.cpp	Tue Jan 01 15:34:07 2013 -0800
@@ -17,6 +17,9 @@
  * JITCraft. If not, see http://www.gnu.org/licenses/.
  */
 #include <sys/mman.h>
+#include <limits.h>
+#include <string.h>
+#include <stdlib.h>
 #include "Platform.h"
 
 using namespace ke;
@@ -99,3 +102,55 @@
     OS::UnmapMemory(address, size);
 }
 
+bool
+OS::GetAbsolutePath(const char *path, AutoFree<char> &chars)
+{
+    chars = (char *)calloc(PATH_MAX, sizeof(char));
+    if (!*chars)
+        return false;
+
+    char *ptr = realpath(path, *chars);
+    if (!ptr)
+        return false;
+
+    return ptr == *chars;
+}
+
+bool
+OS::SplitPath(const char *path, AutoFree<char> &base, AutoFree<char> &name)
+{
+    // dirname() and basename() pretty much suck.
+    size_t len = strlen(path);
+
+    // Skip trailing slashes.
+    while (len > 1 && (path[len - 1] == '/'))
+        len--;
+
+    for (size_t i = len - 1; i < len; i--) {
+        if (path[i] == '/') {
+            name = (char *)calloc(len - i, sizeof(char));
+            if (!*name)
+                return false;
+
+            strcpy(*name, &path[i + 1]);
+
+            base = (char *)calloc(i + 1, sizeof(char));
+            if (!*base)
+                return false;
+
+            memcpy(*base, path, i);
+            (*base)[i] = '\0';
+            return true;
+        }
+    }
+    
+    // The path should have been absolute, which contains at least one separator.
+    return false;
+}
+
+const char *
+OS::PathSeparator()
+{
+    return "/";
+}
+