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From 43b9b2626a59e8764f3bfb1d6b0d73b2d665584e Mon Sep 17 00:00:00 2001
From: Ola x Nilsson <olani@axis.com>
Date: Fri, 19 Jan 2024 10:26:41 +0100
Subject: [PATCH] BUG: Use large file fallocate on 32 bit linux platforms
Using a local prototype for fallocate instead of the fcntl.h header
meant that the redirect triggered by -D_FILE_OFFSET_BITS=64 was not
triggered.
The prototypes in feature_detection_stdio.h should only be used by
functions in setup_common.py. If they are used by the feature
discovery code they might trigger false positives.
Upstream-Status: Backport [https://github.com/numpy/numpy/commit/f49c6f9ea735cd7f718e74f8d637ffbbd3a7a03b]
Signed-off-by: Ola x Nilsson <olani@axis.com>
---
numpy/core/feature_detection_stdio.h | 3 +++
numpy/core/src/multiarray/convert.c | 5 +++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/numpy/core/feature_detection_stdio.h b/numpy/core/feature_detection_stdio.h
index bc14d16..d8bbfbd 100644
--- a/numpy/core/feature_detection_stdio.h
+++ b/numpy/core/feature_detection_stdio.h
@@ -1,6 +1,9 @@
+#define _GNU_SOURCE
#include <stdio.h>
#include <fcntl.h>
+#if 0 /* Only for setup_common.py, not the C compiler */
off_t ftello(FILE *stream);
int fseeko(FILE *stream, off_t offset, int whence);
int fallocate(int, int, off_t, off_t);
+#endif
diff --git a/numpy/core/src/multiarray/convert.c b/numpy/core/src/multiarray/convert.c
index 60c1a1b..8ec0aee 100644
--- a/numpy/core/src/multiarray/convert.c
+++ b/numpy/core/src/multiarray/convert.c
@@ -23,8 +23,9 @@
#include "array_coercion.h"
#include "refcount.h"
-int
-fallocate(int fd, int mode, off_t offset, off_t len);
+#if defined(HAVE_FALLOCATE) && defined(__linux__)
+#include <fcntl.h>
+#endif
/*
* allocate nbytes of diskspace for file fp
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