[PATCH committed] Fix build failure with MPFR 2.4.x (gimple-ssa-sprintf.c)

[Markus Trippelsdorf]

MPFR_RNDx was introduced in MPFR 3.0.0. Since the minimal version that
gcc checks for is 2.4.0, this leads to a build failure.

The fix is straightforward. 

Tested on x86_64-pc-linux-gnu. Committed to trunk as obvious.

        * gimple-ssa-sprintf.c (format_floating): Change MPFR_RNDx to
        GMP_RNDx for compatibility.
 
diff --git a/gcc/gimple-ssa-sprintf.c b/gcc/gimple-ssa-sprintf.c
index 66edc3ec1cc9..283b6251d743 100644
--- a/gcc/gimple-ssa-sprintf.c
+++ b/gcc/gimple-ssa-sprintf.c
@@ -1560,7 +1560,7 @@ format_floating (const directive &dir, tree arg)
           rounding in either direction can result in longer output.  */
        mpfr_t mpfrval;
        mpfr_init2 (mpfrval, rfmt->p);
-       mpfr_from_real (mpfrval, rvp, i ? MPFR_RNDU : MPFR_RNDD);
+       mpfr_from_real (mpfrval, rvp, i ? GMP_RNDU : GMP_RNDD);
 
        /* Use the MPFR rounding specifier to round down in the first
           iteration and then up.  In most but not all cases this will
-- 
Markus