From 4f316230fd7dab9fba2518df2529204302e193eb Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 27 Mar 2026 16:16:56 +0100
Subject: [PATCH] tool_util: fix the ftruncate use for DJGPP

Follow-up to 6041b9b11b904c64305eb6c3f4

Since we define ftruncate as a macro, we can't use the macro within
the function!

Closes #21125
---
 src/tool_util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tool_util.c b/src/tool_util.c
index 08fb39706a..ce235e3bd8 100644
--- a/src/tool_util.c
+++ b/src/tool_util.c
@@ -105,7 +105,8 @@ int msdos_ftruncate(int fd, curl_off_t where)
   if(where > INT_MAX)
     return -1;
 
-  return ftruncate(fd, (off_t) where);
+  /* avoid using the macro for this */
+  return (ftruncate)(fd, (off_t) where);
 }
 #endif /* USE_MSDOS_FTRUNCATE */