From 3c308cbf71ed02796ae98c0ce1b44e24206c17d9 Mon Sep 17 00:00:00 2001
From: Oscar Lesta <oscar.lesta@gmail.com>
Date: Tue, 24 Dec 2024 15:21:22 -0300
Subject: Fix build on Haiku.


diff --git a/numpy/_core/src/umath/string_buffer.h b/numpy/_core/src/umath/string_buffer.h
index ae89ede..d756a0f 100644
--- a/numpy/_core/src/umath/string_buffer.h
+++ b/numpy/_core/src/umath/string_buffer.h
@@ -14,6 +14,15 @@
 #include "string_fastsearch.h"
 #include "gil_utils.h"
 
+#ifdef __HAIKU__
+	#undef isalnum
+	#undef isalpha
+	#undef isdigit
+	#undef islower
+	#undef isspace
+	#undef isupper
+#endif
+
 #define CHECK_OVERFLOW(index) if (buf + (index) >= after) return 0
 #define MSB(val) ((val) >> 7 & 1)
 
-- 
2.48.1