From 1d8797876abff4ec8d76146e0013dc6551b070f7 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Mon, 13 Apr 2020 13:24:56 -0700
Subject: [PATCH] Fixed implicit linkage to ftol2() on Windows

---
 src/stdlib/SDL_stdlib.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/stdlib/SDL_stdlib.c b/src/stdlib/SDL_stdlib.c
index 848a1fd05..22eab5b02 100644
--- a/src/stdlib/SDL_stdlib.c
+++ b/src/stdlib/SDL_stdlib.c
@@ -266,8 +266,11 @@ SDL_trunc(double x)
 #if defined(HAVE_TRUNC)
     return trunc(x);
 #else
-    /* !!! FIXME: there are more formal (correct!) ways to do this. */
-    return (double) ((Sint64) x);
+    if (x >= 0.0f) {
+        return SDL_floor(x);
+    } else {
+        return SDL_ceil(x);
+    }
 #endif
 }