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-rw-r--r--nuttx/lib/math/lib_sin.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nuttx/lib/math/lib_sin.c b/nuttx/lib/math/lib_sin.c
index 2d21d2309..c04d6b88b 100644
--- a/nuttx/lib/math/lib_sin.c
+++ b/nuttx/lib/math/lib_sin.c
@@ -35,7 +35,7 @@
#include <sys/types.h>
#include <math.h>
-#if CONFIG_HAVE_DOUBLE
+#ifdef CONFIG_HAVE_DOUBLE
/************************************************************************
* Private Data