More NaN hardening in the analysis code
diff --git a/celt/arch.h b/celt/arch.h
index 6693408..25cc0b7 100644
--- a/celt/arch.h
+++ b/celt/arch.h
@@ -140,7 +140,7 @@
 #ifdef FLOAT_APPROX
 /* This code should reliably detect NaN/inf even when -ffast-math is used.
    Assumes IEEE 754 format. */
-static inline int celt_isnan(float x)
+static OPUS_INLINE int celt_isnan(float x)
 {
    union {float f; opus_uint32 i;} in;
    in.f = x;