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Diffstat (limited to 'nuttx/lib/math/lib_fabs.c')
-rw-r--r--nuttx/lib/math/lib_fabs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nuttx/lib/math/lib_fabs.c b/nuttx/lib/math/lib_fabs.c
index a635b0b41..ff99ceb64 100644
--- a/nuttx/lib/math/lib_fabs.c
+++ b/nuttx/lib/math/lib_fabs.c
@@ -38,7 +38,7 @@
* Public Functions
************************************************************************/
-#if CONFIG_HAVE_DOUBLE
+#ifdef CONFIG_HAVE_DOUBLE
double fabs(double x)
{
return ((x < 0) ? -x : x);