From 6d69ab3f262eca3f0c6ad0ce075d2c80b9924d0e Mon Sep 17 00:00:00 2001
From: Prajwal B Mehendarkar <prajwal.b.mehendarkar@ibm.com>
Date: Fri, 10 Oct 2025 13:45:46 +0530
Subject: [PATCH] cmake : Dont define XOPENSOURCE on AIX (#16481)

---
 ggml/src/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ggml/src/CMakeLists.txt b/ggml/src/CMakeLists.txt
index c8f3d85964..892c23318a 100644
--- a/ggml/src/CMakeLists.txt
+++ b/ggml/src/CMakeLists.txt
@@ -145,6 +145,9 @@ endif()
 # which was introduced in POSIX.1-2008, forcing us to go higher
 if (CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
     add_compile_definitions(_XOPEN_SOURCE=700)
+elseif (CMAKE_SYSTEM_NAME MATCHES "AIX")
+    # Don't define _XOPEN_SOURCE.  We need _ALL_SOURCE, which is the default,
+    # in order to define _SC_PHYS_PAGES.
 else()
     add_compile_definitions(_XOPEN_SOURCE=600)
 endif()