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-rw-r--r--lib/signbitf.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/signbitf.c b/lib/signbitf.c
index d539dbee8d..c3d5545234 100644
--- a/lib/signbitf.c
+++ b/lib/signbitf.c
@@ -23,6 +23,10 @@
#include "isnanf-nolibm.h"
#include "float+.h"
+#ifdef gl_signbitf_OPTIMIZED_MACRO
+# undef gl_signbitf
+#endif
+
int
gl_signbitf (float arg)
{