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-rw-r--r--src/math/acosl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/math/acosl.c b/src/math/acosl.c
index 21e6c95e..510e16f1 100644
--- a/src/math/acosl.c
+++ b/src/math/acosl.c
@@ -30,7 +30,7 @@ one = 1.00000000000000000000e+00;
// FIXME
//#ifdef __i386__
/* XXX Work around the fact that gcc truncates long double constants on i386 */
-static volatile double
+static const volatile double
pi1 = 3.14159265358979311600e+00, /* 0x1.921fb54442d18p+1 */
pi2 = 1.22514845490862001043e-16; /* 0x1.1a80000000000p-53 */
#define pi ((long double)pi1 + pi2)