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++ From: Jonas Karlsson <jonas.karlsson@qt.io>
++ Subject: [PATCH] PhysX: Do not use feenableexcept/fedisableexcept on musl
++
++ musl does not provide feenableexcept and fedisableexcept. Those calls
++ have only been used on linux so far. This patch extends the #ifdef logic
++ to only use them on Linux if additionally glibc is used.
++
++ Fixes
++ src/3rdparty/PhysX/source/foundation/unix/FdUnixFPU.cpp:65:2: error: use of undeclared identifier 'fedisableexcept'; did you mean 'feraiseexcept'?
++ 65 | fedisableexcept(FE_ALL_EXCEPT);
++ | ^~~~~~~~~~~~~~~
++ | feraiseexcept
++
++ This is the PhysX 4.1 patch of the same name, forward ported to 5.9.0,
++ where the foundation sources moved to source/foundation/unix.
++ ---
++ src/3rdparty/PhysX/source/foundation/unix/FdUnixFPU.cpp | 6 +++---
++ 1 file changed, 3 insertions(+), 3 deletions(-)
++
++ diff --git a/src/3rdparty/PhysX/source/foundation/unix/FdUnixFPU.cpp b/src/3rdparty/PhysX/source/foundation/unix/FdUnixFPU.cpp
++ --- a/src/3rdparty/PhysX/source/foundation/unix/FdUnixFPU.cpp
++ +++ b/src/3rdparty/PhysX/source/foundation/unix/FdUnixFPU.cpp
++ @@ -53,7 +53,7 @@ physx::PxFPUGuard::PxFPUGuard()
++ fegetenv(reinterpret_cast<fenv_t*>(mControlWords));
++ fesetenv(FE_DFL_ENV);
++
++ -#if PX_LINUX
++ +#if PX_LINUX && __GLIBC__
++ // need to explicitly disable exceptions because fesetenv does not modify
++ // the sse control word on 32bit linux (64bit is fine, but do it here just be sure)
++ fedisableexcept(FE_ALL_EXCEPT);
++ @@ -79,7 +79,7 @@ physx::PxFPUGuard::~PxFPUGuard()
++
++ PX_FOUNDATION_API void physx::PxEnableFPExceptions()
++ {
++ -#if PX_LINUX && !defined(__EMSCRIPTEN__)
++ +#if (PX_LINUX && __GLIBC__) && !defined(__EMSCRIPTEN__)
++ feclearexcept(FE_ALL_EXCEPT);
++ feenableexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW);
++ #elif PX_OSX
++ @@ -96,7 +96,7 @@ PX_FOUNDATION_API void physx::PxEnableFPExceptions()
++
++ PX_FOUNDATION_API void physx::PxDisableFPExceptions()
++ {
++ -#if PX_LINUX && !defined(__EMSCRIPTEN__)
++ +#if (PX_LINUX && __GLIBC__) && !defined(__EMSCRIPTEN__)
++ fedisableexcept(FE_ALL_EXCEPT);
++ #elif PX_OSX
++ // clear any pending exceptions