diff --git modules/lua/vlc.c modules/lua/vlc.c
index df235d0..b753346 100644
--- modules/lua/vlc.c
+++ modules/lua/vlc.c
@@ -232,10 +232,22 @@ int vlclua_dir_list( const char *luadirname, char ***pppsz_dir_list )
             i++;

 #if defined(__APPLE__)
-        if( likely(asprintf( &ppsz_dir_list[i],
+        if( strcasestr (psz_datapath, "/share") == NULL
+            && likely(asprintf( &ppsz_dir_list[i],
                              "%s"DIR_SEP"share"DIR_SEP"lua"DIR_SEP"%s",
                              psz_datapath, luadirname ) != -1) )
             i++;
+        // When installed through MacPorts (or Fink, or HomeBrew, or...?) we do have
+        // meta/reader under LibDir/lua (/opt/local/lib/vlc/lua for MacPorts's standard install prefix)
+        // so we add that location at the end.
+        char *psz_libpath = config_GetLibDir();
+        if( likely(psz_libpath != NULL) )
+        {
+            if( likely(asprintf( &ppsz_dir_list[i], "%s"DIR_SEP"lua"DIR_SEP"%s",
+                                 psz_libpath, luadirname ) != -1) )
+                i++;
+            free( psz_libpath );
+        }
 #endif
         free( psz_datapath );
     }
diff --git src/darwin/dirs.c src/darwin/dirs.c
index 381729c..9174602 100644
--- src/darwin/dirs.c
+++ src/darwin/dirs.c
@@ -43,14 +43,20 @@
 # define MAXPATHLEN 1024
 #endif
 
-char *config_GetLibDir (void)
+// 20150205: we should do case-insensitive filename comparisons. HFS is case-insensitive by default,
+// and while it strives to preserve case there is no guarantee that case folding will never occur,
+// especially in directory components.
+
+// @p libDirIsPosix is set to true in if getLibDir() detects we're installed
+// in a (linux-specific) posix way, like e.g. MacPorts would do.
+char *getLibDir (bool *libDirIsPosix)
 {
+    *libDirIsPosix = FALSE;
     /* Get the full program path and name */
     /* First try to see if we are linked to the framework */
-    for (unsigned i = 0; i < _dyld_image_count(); i++)
-    {
+    for (unsigned i = 0; i < _dyld_image_count(); i++) {
         const char *psz_img_name = _dyld_get_image_name(i);
-        const char *p = strstr( psz_img_name, "VLCKit.framework/Versions/" );
+        const char *p = strcasestr( psz_img_name, "VLCKit.framework/Versions/" );
 
         /* Check for "VLCKit.framework/Versions/Current/VLCKit",
          * as well as "VLCKit.framework/Versions/A/VLCKit" and
@@ -61,18 +67,18 @@ char *config_GetLibDir (void)
             p += strcspn( p, "/" );
 
             /* If the string ends with VLCKit then we've found a winner */
-            if (!strcmp( p, "/VLCKit"))
+            if (!strcasecmp( p, "/VLCKit"))
                 return strdup( dirname(psz_img_name) );
         }
 
-        /* Do we end by "VLC"? If so we are the legacy VLC.app that doesn't
+        /* Do we end by "MacOS/VLC"? If so we are the legacy VLC.app that doesn't
          * link to VLCKit. */
         size_t len = strlen(psz_img_name);
-        if (len >= 3 && !strcmp( psz_img_name + len - 3, "VLC"))
+        if (len >= 9 && !strcasecmp( psz_img_name + len - 9, "MacOS/VLC"))
             return strdup( dirname(psz_img_name) );
 
         /* Do we end by "VLC-Plugin"? oh, we must be the NPAPI plugin */
-        if (len >= 10 && !strcmp( psz_img_name + len - 10, "VLC-Plugin"))
+        if (len >= 10 && !strcasecmp( psz_img_name + len - 10, "VLC-Plugin"))
             return strdup( dirname(psz_img_name) );
     }
 
@@ -84,6 +90,7 @@ char *config_GetLibDir (void)
         char *path = NULL;
         asprintf(&path, "%s/"PACKAGE, incompletepath);
         free(incompletepath);
+        *libDirIsPosix = TRUE;
         return path;
     }
 
@@ -91,15 +98,37 @@ char *config_GetLibDir (void)
     abort ();
 }
 
+char *config_GetLibDir (void)
+{
+    bool isPosixStub;
+    return getLibDir (&isPosixStub);
+}
+
 char *config_GetDataDir (void)
 {
     const char *path = getenv ("VLC_DATA_PATH");
     if (path)
         return strdup (path);
 
-    char *vlcpath = config_GetLibDir ();
-    char *datadir;
+    bool libDirIsPosix;
+    char *vlcpath = getLibDir (&libDirIsPosix);
+    char *datadir = NULL;
 
+    if (libDirIsPosix) {
+        // vlcpath should point to something like /opt/local/lib/vlc
+        // if so, we can chop off the /lib/vlc bit, and then add /share
+        // like we would otherwise.
+        char *p = strcasestr(vlcpath, "/lib/");
+        if (p != NULL) {
+            *p = '\0';
+        }
+        else {
+            // something else ... return PKGDATADIR
+            free(vlcpath);
+            datadir = strdup(PKGDATADIR);
+            return datadir;
+        }
+    }
     if (asprintf (&datadir, "%s/share", vlcpath) == -1)
         datadir = NULL;
 
@@ -137,16 +166,24 @@ static char *getAppDependentDir(vlc_userdir_t type)
     }
 
     // Default fallback
-    const char *name = "org.videolan.vlc";
-
-    CFBundleRef mainBundle = CFBundleGetMainBundle();
-    if (mainBundle) {
-        CFStringRef identifierAsNS = CFBundleGetIdentifier(mainBundle);
-        if (identifierAsNS) {
-            char identifier[256];
-            Boolean ret = CFStringGetCString(identifierAsNS, identifier, sizeof(identifier), kCFStringEncodingUTF8);
-            if (ret)
-                name = identifier;            
+    char name[256] = "org.videolan.vlc";
+    bool libDirIsPosix;
+    char *vlcpath = getLibDir(&libDirIsPosix);
+    if (vlcpath) {
+        free(vlcpath);
+    }
+
+    if (!libDirIsPosix) {
+        CFBundleRef mainBundle = CFBundleGetMainBundle();
+        if (mainBundle) {
+            CFStringRef identifierAsNS = CFBundleGetIdentifier(mainBundle);
+            if (identifierAsNS) {
+                char identifier[256];
+                Boolean ret = CFStringGetCString(identifierAsNS, identifier, sizeof(identifier), kCFStringEncodingUTF8);
+                // Don't use an empty identifier (= the application that links to us doesn't have a CFBundleIdentifier set).
+                if (ret && strlen(identifier))
+                    strcpy(name, identifier);
+            }
         }
     }