OrcaSlicer/deps/OpenCV/0002-clang19-macos.patch
Noisyfox a9d426a3dc
Fix Xcode 16.3 build (#9422)
* Fix build with Xcode 16.3

* Simplify OpenVDB patch, from 930c3acb8e (diff-bc3061cc2fe6c64a3d67c8350330bb3a530d01037faace6da27ad9a12aa03e29)

* Fix CGAL header under clang 19
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281880

* Fix compile error due to removal of base template for `std::char_traits` in clang 19
https://releases.llvm.org/19.1.0/projects/libcxx/docs/ReleaseNotes.html#deprecations-and-removals
2025-05-01 17:09:45 +08:00

54 lines
2.1 KiB
Diff

From 893b8113f04d408cc6177c6de19c9889a48faa24 Mon Sep 17 00:00:00 2001
From: Zixu Wang <zixu_wang@apple.com>
Date: Thu, 18 Jan 2024 11:12:00 -0800
Subject: [PATCH] Fix unused platform check and configuration for macOS
In a similar manner as zlib (https://github.com/madler/zlib/pull/895),
libpng contains a header configuration that's no longer valid and
hasn't been exercised for the macOS target.
- The target OS conditional macros are misused. Specifically
`TARGET_OS_MAC` covers all Apple targets, including iOS, and it
should not be checked with `#if defined` as they would always be
defined (to either 1 or 0) on Apple platforms.
- `#include <fp.h>` no longer works for the macOS target and results
in a compilation failure. macOS ships all required functions in
`math.h`, and clients should use `math.h` instead.
This problem has not been noticed until a recent extension in clang
(https://github.com/llvm/llvm-project/pull/74676) exposed the issue
and broke libpng builds on Apple platforms. The failure can be
reproduced now by adding `#include <TargetConditionals.h>` before the
block.
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
---
AUTHORS | 2 ++
pngpriv.h | 14 ++------------
2 files changed, 4 insertions(+), 12 deletions(-)
diff --git a/3rdparty/libpng/pngpriv.h b/3rdparty/libpng/pngpriv.h
index 6c7280cf53..190eb85cbf 100644
--- a/3rdparty/libpng/pngpriv.h
+++ b/3rdparty/libpng/pngpriv.h
@@ -556,18 +556,8 @@
*/
# include <float.h>
-# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
- defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
- /* We need to check that <math.h> hasn't already been included earlier
- * as it seems it doesn't agree with <fp.h>, yet we should really use
- * <fp.h> if possible.
- */
-# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
-# include <fp.h>
-# endif
-# else
-# include <math.h>
-# endif
+# include <math.h>
+
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
/* Amiga SAS/C: We must include builtin FPU functions when compiling using
* MATH=68881