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-rw-r--r--erts/emulator/sys/unix/erl_unix_sys.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index f7a6298d5b..26ed2fb558 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -229,7 +229,7 @@ extern void sys_stop_cat(void);
#ifdef USE_ISINF_ISNAN /* simulate finite() */
# define isfinite(f) (!isinf(f) && !isnan(f))
# define HAVE_ISFINITE
-#elif defined(__GNUC__) && defined(HAVE_FINITE)
+#elif (defined(__GNUC__) && !defined(__llvm__)) && defined(HAVE_FINITE)
/* We use finite in gcc as it emits assembler instead of
the function call that isfinite emits. The assembler is
significantly faster. */