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-rw-r--r--math/test-idouble.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/math/test-idouble.c b/math/test-idouble.c
index 3039ccf5b4..14bfb9241e 100644
--- a/math/test-idouble.c
+++ b/math/test-idouble.c
@@ -24,6 +24,7 @@
 #define MATHCONST(x) x
 #define CHOOSE(Clongdouble,Cdouble,Cfloat) Cdouble
 #define PRINTF_EXPR "e"
+#define PRINTF_XEXPR "a"
 #define TEST_DOUBLE 1
 #define TEST_INLINE