From a1c620d50ecbb18d5a14683fa750ca6b76faa66d Mon Sep 17 00:00:00 2001
From: FuPeiJiang <42662615+FuPeiJiang@users.noreply.github.com>
Date: Sat, 1 Nov 2025 14:36:34 -0400
Subject: [PATCH] Check headers for reallocarray

---
 app/meson.build | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/app/meson.build b/app/meson.build
index f7df69eb..4d4d8c19 100644
--- a/app/meson.build
+++ b/app/meson.build
@@ -139,9 +139,14 @@ check_functions = [
     'vasprintf',
     'nrand48',
     'jrand48',
-    'reallocarray',
 ]
 
+check_functions_in_headers = {
+    'stdlib.h': [
+        'reallocarray'
+    ],
+}
+
 foreach f : check_functions
   if cc.has_function(f)
     define = 'HAVE_' + f.underscorify().to_upper()
@@ -149,6 +154,15 @@ foreach f : check_functions
   endif
 endforeach
 
+foreach header, f_list : check_functions_in_headers
+    foreach f : f_list
+        if cc.has_function(f) and cc.has_header_symbol(header, f, args: ['-D_GNU_SOURCE'])
+            define = 'HAVE_' + f.underscorify().to_upper()
+            conf.set(define, true)
+        endif
+    endforeach
+endforeach
+
 conf.set('HAVE_SOCK_CLOEXEC', host_machine.system() != 'windows' and
                               cc.has_header_symbol('sys/socket.h', 'SOCK_CLOEXEC'))