From 6f103a3b8246ed4a883abaea63c6682cdefc6752 Mon Sep 17 00:00:00 2001
From: withmorten <morten.with@gmail.com>
Date: Wed, 7 Jul 2021 17:34:02 +0200
Subject: finish COMPATIBLE_SAVES and FIX_INCOMPATIBLE_SAVES

---
 src/skel/crossplatform.cpp | 23 +++++++++++++++++++++++
 src/skel/crossplatform.h   |  3 +++
 2 files changed, 26 insertions(+)

(limited to 'src/skel')

diff --git a/src/skel/crossplatform.cpp b/src/skel/crossplatform.cpp
index 68df6704..f7016b21 100644
--- a/src/skel/crossplatform.cpp
+++ b/src/skel/crossplatform.cpp
@@ -155,6 +155,29 @@ FILE* _fcaseopen(char const* filename, char const* mode)
     return result;
 }
 
+int _caserename(const char *old_filename, const char *new_filename)
+{
+    int result;
+    char *real_old = casepath(old_filename);
+    char *real_new = casepath(new_filename);
+
+    // hack so we don't even try to rename it to new_filename if it already exists
+    if (!real_new) {
+        free(real_old);
+        return -1;
+    }
+
+    if (!real_old)
+        result = rename(old_filename, real_new);
+    else
+        result = rename(real_old, real_new);
+
+    free(real_old);
+    free(real_new);
+
+    return result;
+}
+
 // Case-insensitivity on linux (from https://github.com/OneSadCookie/fcaseopen)
 // Returned string should freed manually (if exists)
 char* casepath(char const* path, bool checkPathFirst)
diff --git a/src/skel/crossplatform.h b/src/skel/crossplatform.h
index a073f854..f37e64a1 100644
--- a/src/skel/crossplatform.h
+++ b/src/skel/crossplatform.h
@@ -33,6 +33,7 @@ char *_strdate(char *buf);
 #endif
 extern DWORD _dwOperatingSystemVersion;
 #define fcaseopen fopen
+#define caserename rename
 #else
 char *strupr(char *str);
 char *strlwr(char *str);
@@ -55,6 +56,8 @@ extern long _dwOperatingSystemVersion;
 char *casepath(char const *path, bool checkPathFirst = true);
 FILE *_fcaseopen(char const *filename, char const *mode);
 #define fcaseopen _fcaseopen
+int _caserename(const char *old_filename, const char *new_filename);
+#define caserename _caserename
 #endif
 
 #ifdef RW_GL3
-- 
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