commit e79d06b0e852c5ae854bb27de9c9de7f29b4343d
author Chih-Hung Hsieh <chh@google.com> Tue Jun 23 14:18:14 2015 -0700
committer Chih-hung Hsieh <chh@google.com> Tue Jun 23 23:13:39 2015 +0000
tree 36802b2a41b01b0412893b8ab241fe26dc2daad9
parent a8993c994e45ec2dc00dcef15910560e22d67be9

Use gcc to build and test x86_64 long double code.

Clang/llvm x86_64 configuration of long double is still
incompatible with gcc.
https://llvm.org/bugs/show_bug.cgi?id=23897

BUG: 21899249
Change-Id: I47fd6d0ce2daa84ae0035e7885a4d90e4c3056f7

libm/Android.mk

diff --git a/libm/Android.mk b/libm/Android.mk
index bc4c86d..7a7e3b0 100644
--- a/libm/Android.mk
+++ b/libm/Android.mk
@@ -3,6 +3,12 @@
 
 bionic_coverage := false
 
+# Clang/llvm has incompatible long double (fp128) for x86_64.
+# https://llvm.org/bugs/show_bug.cgi?id=23897
+ifeq ($(TARGET_ARCH),x86_64)
+libm_clang := false
+endif
+
 # -----------------------------------------------------------------------------
 # libm.a
 # -----------------------------------------------------------------------------
@@ -473,7 +479,7 @@
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/upstream-freebsd/lib/msun/src/
 LOCAL_C_INCLUDES_64 += $(LOCAL_PATH)/upstream-freebsd/lib/msun/ld128/
 
-LOCAL_CLANG := true
+LOCAL_CLANG := $(libm_clang)
 LOCAL_ARM_MODE := arm
 LOCAL_CFLAGS := \
     -DFLT_EVAL_METHOD=0 \
@@ -514,7 +520,7 @@
 LOCAL_LDFLAGS := -Wl,--version-script,$(LOCAL_PATH)/libm.map
 
 LOCAL_MODULE := libm
-LOCAL_CLANG := true
+LOCAL_CLANG := $(libm_clang)
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
 LOCAL_WHOLE_STATIC_LIBRARIES := libm