[flang] build fix

[vdonaldson]

Place floating point environment calls under '#ifdef __USE_GNU'.

[llvmbot]

@llvm/pr-subscribers-flang-runtime

Author: None (vdonaldson)

Changes

Place floating point environment calls under '#ifdef __USE_GNU'.

---

Full diff: https://github.com/llvm/llvm-project/pull/121032.diff

1 Files Affected:

• (modified) flang/runtime/exceptions.cpp (+1-1)

diff --git a/flang/runtime/exceptions.cpp b/flang/runtime/exceptions.cpp
index 1ed00538fef396..2fa2baa2ec84a2 100644
--- a/flang/runtime/exceptions.cpp
+++ b/flang/runtime/exceptions.cpp
@@ -84,7 +84,7 @@ uint32_t RTNAME(MapException)(uint32_t excepts) {
 // Check if the processor has the ability to control whether to halt or
 // continue execution when a given exception is raised.
 bool RTNAME(SupportHalting)([[maybe_unused]] uint32_t except) {
-#if (defined(__arm__) || defined(__aarch64__)) && !defined(_WIN32)
+#ifdef __USE_GNU
   except = RTNAME(MapException)(except);
   int currentSet = fegetexcept(), flipSet, ok;
   if (currentSet & except) {