ports/physfs/nacl.patch

diff --git a/physfs_platforms.h b/physfs_platforms.h
--- a/physfs_platforms.h
+++ b/physfs_platforms.h
@@ -38,7 +38,7 @@
 #  endif
 #elif defined(macintosh)
 #  error Classic Mac OS support was dropped from PhysicsFS 2.0. Move to OS X.
-#elif defined(unix) || defined(__unix__)
+#elif defined(unix) || defined(__unix__) || defined(__native_client__)
 #  define PHYSFS_PLATFORM_UNIX
 #  define PHYSFS_PLATFORM_POSIX
 #else
diff --git a/platform/posix.c b/platform/posix.c
--- a/platform/posix.c
+++ b/platform/posix.c
@@ -27,6 +27,11 @@
 #include <linux/unistd.h>
 #endif
 
+#if defined(__native_client__) && !defined(__GLIBC__)
+// Newlib doesn't define lstat.
+#define lstat stat
+#endif
+
 #include "physfs_internal.h"
 
 
diff --git a/platform/unix.c b/platform/unix.c
--- a/platform/unix.c
+++ b/platform/unix.c
@@ -283,8 +283,13 @@ char *__PHYSFS_platformRealPath(const char *path)
     char resolved_path[MAXPATHLEN];
     char *retval = NULL;
 
+#if defined(__native_client__) && !defined(__GLIBC__)
+    // TODO(binji): Real implementation for Newlib.
+    strncpy(resolved_path, path, MAXPATHLEN);
+#else
     errno = 0;
     BAIL_IF_MACRO(!realpath(path, resolved_path), strerror(errno), NULL);
+#endif
     retval = (char *) allocator.Malloc(strlen(resolved_path) + 1);
     BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
     strcpy(retval, resolved_path);