From 939814826f3eeee988f81313cd5881c6d08d6116 Mon Sep 17 00:00:00 2001
From: Daniel Abrecht <public@danielabrecht.ch>
Date: Sun, 3 Oct 2021 12:51:42 +0000
Subject: [PATCH] Fix mingw build: add strndup implementation to win32_compat.c

---
 include/win32/win32_compat.h |  5 +++++
 win32/win32_compat.c         | 19 ++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/include/win32/win32_compat.h b/include/win32/win32_compat.h
index d57d35c..bf3295e 100755
--- a/include/win32/win32_compat.h
+++ b/include/win32/win32_compat.h
@@ -33,6 +33,7 @@ THE SOFTWARE.
 #include <io.h>
 #include <sys/stat.h>
 #include <time.h>
+#include <stddef.h> // For size_t type
 
 typedef unsigned long fsblkcnt_t;
 typedef unsigned long fsfilcnt_t;
@@ -151,4 +152,8 @@ int     win32_gettimeofday(struct timeval *tv, struct timezone *tz);
 
 #define DllExport
 
+#ifdef __MINGW32__
+char* strndup(const char *s, size_t n);
+#endif
+
 #endif//win32_COMPAT_H_
diff --git a/win32/win32_compat.c b/win32/win32_compat.c
index d1066e3..86171e9 100644
--- a/win32/win32_compat.c
+++ b/win32/win32_compat.c
@@ -197,6 +197,23 @@ int win32_gettimeofday(struct timeval *tv, struct timezone *tz)
  
   return 0;
 }
+#endif
+
+#ifdef __MINGW32__
+char* strndup(const char* s, size_t n)
+{
+  size_t len;
+  for(len=0; len<n && s[len]; len++);
+  len += 1;
+  if(!len)
+    return 0;
+  char* copy = malloc(len);
+  if(!copy)
+    return 0;
+  memcpy(copy, s, len-1);
+  copy[len-1] = 0;
+  return copy;
+}
+#endif
 
 #endif
-#endif