From 4069ddc926e62a1d436ff577046e79d713159075 Mon Sep 17 00:00:00 2001
From: Justin Weiss <justin@justinweiss.com>
Date: Wed, 22 Nov 2017 19:33:48 -0800
Subject: [PATCH] Expand symlinks in default configuration paths for iOS
 devices

CFSearchPathForDirectoriesInDomains returns a path in /var, while
getenv(HOME) returns the same path in /private/var. /var is a symlink
to /private/var, but when config is generated, the difference in paths
means they won't be abbreviated correctly.

This change expands symlinks before filling in the default
directories, so those paths will match.
---
 frontend/drivers/platform_darwin.m | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/frontend/drivers/platform_darwin.m b/frontend/drivers/platform_darwin.m
index ee7ec7b7bb..df2ff6c28f 100644
--- a/frontend/drivers/platform_darwin.m
+++ b/frontend/drivers/platform_darwin.m
@@ -48,6 +48,7 @@
 
 #include <boolean.h>
 #include <compat/apple_compat.h>
+#include <retro_assert.h>
 #include <retro_miscellaneous.h>
 #include <file/file_path.h>
 #include <rhash.h>
@@ -335,6 +336,15 @@ static void frontend_darwin_get_environment_settings(int *argc, char *argv[],
    CFSearchPathForDirectoriesInDomains(CFDocumentDirectory,
          CFUserDomainMask, 1, home_dir_buf, sizeof(home_dir_buf));
 
+#if TARGET_OS_IPHONE
+   char resolved_home_dir_buf[PATH_MAX_LENGTH] = {0};
+   if (realpath(home_dir_buf, resolved_home_dir_buf)) {
+      retro_assert(strlcpy(home_dir_buf,
+            resolved_home_dir_buf,
+            sizeof(home_dir_buf)) < sizeof(home_dir_buf));
+   }
+#endif
+
    strlcat(home_dir_buf, "/RetroArch", sizeof(home_dir_buf));
    fill_pathname_join(g_defaults.dirs[DEFAULT_DIR_SHADER],
          home_dir_buf, "shaders_glsl",