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-rw-r--r--math/test-float.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/math/test-float.c b/math/test-float.c
index 849067c8da..04027738a9 100644
--- a/math/test-float.c
+++ b/math/test-float.c
@@ -23,6 +23,7 @@
 #define MATHCONST(x) x
 #define CHOOSE(Clongdouble,Cdouble,Cfloat) Cfloat
 #define PRINTF_EXPR "e"
+#define PRINTF_XEXPR "a"
 #define TEST_FLOAT 1
 
 #ifndef __NO_MATH_INLINES