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-rw-r--r--math/feupdateenv.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/math/feupdateenv.c b/math/feupdateenv.c
index 13d819e..08d8ae2 100644
--- a/math/feupdateenv.c
+++ b/math/feupdateenv.c
@@ -23,6 +23,10 @@
int
__feupdateenv (const fenv_t *envp)
{
+#if defined FE_NOMASK_ENV && FE_ALL_EXCEPT != 0
+ if (envp == FE_NOMASK_ENV)
+ return 1;
+#endif
/* Nothing to do. */
return 0;
}