Stop setting WANT_ROUNDING=0. am: ef3eb23336 am: faac035047 am: cecbdd39de

Change-Id: Id582bb12f305b67430c7694da45971ff348c3c91

1 files changed, 12 insertions, 4 deletions

diff --git a/Android.bp b/Android.bp
index 33b21ec..04831a4 100755
--- a/Android.bp
+++ b/Android.bp
@@ -5,15 +5,23 @@ cc_defaults {
         "-Werror",
         "-Wno-unused-parameter",
         "-O2",
+        "-ffp-contract=fast",
+        "-fno-math-errno",
+
+        // bionic configuration.
+
         // We're actually implementing bionic here, so we don't want <math.h>
         // to try to be helpful by renaming long double routines.
         "-D__BIONIC_LP32_USE_LONG_DOUBLE",
-        "-DWANT_ROUNDING=0",
+        "-DFLT_EVAL_METHOD=0",
+
+        // arm-optimized-routines configuration.
+
+        // BSD libm doesn't set errno, and bionic was based on the BSDs.
+        // https://github.com/ARM-software/optimized-routines/issues/16#issuecomment-572009659
         "-DWANT_ERRNO=0",
+        // TODO: we will want the SVE code in future, but it's not ready yet.
         "-DWANT_VMATH=0",
-        "-DFLT_EVAL_METHOD=0",
-        "-ffp-contract=fast",
-        "-fno-math-errno",
     ],
     local_include_dirs: ["math/include"],
 }