From 3ba74c43953087f441104f65918ed82f2078b4c3 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Wed, 10 Sep 2025 12:48:06 +0200
Subject: [PATCH] curl_mem_undef.h: limit to `CURLDEBUG` for non-memalloc
 overrides

To fix non-`CURLDEBUG` builds on 32-bit AIX, where `fopen` is a system
macro.

Ref: #18502
Ref: https://github.com/curl/curl/pull/18502/commits/793a375ce3002454599ffe2d7b561b6340103306

Follow-up to 3bb5e58c105d7be450b667858d1b8e7ae3ded555 #17827
Reported-by: Andrew Kirillov
Fixes #18510
Closes #18514
---
 lib/curl_mem_undef.h | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/curl_mem_undef.h b/lib/curl_mem_undef.h
index b72e529dde..acc3a9226a 100644
--- a/lib/curl_mem_undef.h
+++ b/lib/curl_mem_undef.h
@@ -29,13 +29,15 @@
 #undef calloc
 #undef realloc
 #undef free
-#undef send
-#undef recv
-
 #ifdef _WIN32
 #undef _tcsdup
 #endif
 
+#ifdef CURLDEBUG
+
+#undef send
+#undef recv
+
 #undef socket
 #ifdef HAVE_ACCEPT4
 #undef accept4
@@ -51,5 +53,7 @@
 #undef fdopen
 #undef fclose
 
+#endif /* CURLDEBUG */
+
 #undef HEADER_CURL_MEMORY_H
 #undef HEADER_CURL_MEMDEBUG_H