Fix C++ on Darwin
We've been including the system libc++ headers even if we're building
against our version of libc++. Stop doing that, and only add the headers
to our path if we're using the system libraries.
If nothing is specified, on recent OSX versions, libc++ is the default
c++ library instead of libstdc++. We've been explicitly including the
libc++ headers on all versions, but that breaks old versions. Force us
over to libc++, since the system libstdc++ does not support C++11, and
libc++ is still supported on our oldest version (10.8).
Change-Id: I1fccee8da0f425e10ccc9d3247ed40664eb6ada0
diff --git a/core/combo/HOST_darwin-x86.mk b/core/combo/HOST_darwin-x86.mk
index c1c3caa..076815b 100644
--- a/core/combo/HOST_darwin-x86.mk
+++ b/core/combo/HOST_darwin-x86.mk
@@ -47,7 +47,6 @@
$(combo_2nd_arch_prefix)HOST_AR := $(AR)
$(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -isysroot $(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version) -DMACOSX_DEPLOYMENT_TARGET=$(mac_sdk_version)
-$(combo_2nd_arch_prefix)HOST_GLOBAL_CPPFLAGS += -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
$(combo_2nd_arch_prefix)HOST_GLOBAL_LDFLAGS += -isysroot $(mac_sdk_root) -Wl,-syslibroot,$(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version)
$(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -fPIC -funwind-tables
@@ -58,6 +57,10 @@
$(combo_2nd_arch_prefix)HOST_GLOBAL_ARFLAGS := cqs
+# Use Darwin's libc++, as Darwin's libstdc++ is old and does not support C++11
+$(combo_2nd_arch_prefix)HOST_SYSTEMCPP_CPPFLAGS := -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
+$(combo_2nd_arch_prefix)HOST_SYSTEMCPP_LDFLAGS := -stdlib=libc++
+
############################################################
## Macros after this line are shared by the 64-bit config.
diff --git a/core/combo/HOST_darwin-x86_64.mk b/core/combo/HOST_darwin-x86_64.mk
index ce9d1bb..a8541ee 100644
--- a/core/combo/HOST_darwin-x86_64.mk
+++ b/core/combo/HOST_darwin-x86_64.mk
@@ -47,7 +47,6 @@
HOST_AR := $(AR)
HOST_GLOBAL_CFLAGS += -isysroot $(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version) -DMACOSX_DEPLOYMENT_TARGET=$(mac_sdk_version)
-HOST_GLOBAL_CPPFLAGS += -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
HOST_GLOBAL_LDFLAGS += -isysroot $(mac_sdk_root) -Wl,-syslibroot,$(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version)
HOST_GLOBAL_CFLAGS += -fPIC -funwind-tables
@@ -58,6 +57,10 @@
HOST_GLOBAL_ARFLAGS := cqs
+# Use Darwin's libc++, as Darwin's libstdc++ is old and does not support C++11
+HOST_SYSTEMCPP_CPPFLAGS := -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
+HOST_SYSTEMCPP_LDFLAGS := -stdlib=libc++
+
# We Reuse the following functions with the same name from HOST_darwin-x86.mk:
# transform-host-o-to-shared-lib-inner
# transform-host-o-to-executable-inner
diff --git a/core/cxx_stl_setup.mk b/core/cxx_stl_setup.mk
index 37be1f7..0777645 100644
--- a/core/cxx_stl_setup.mk
+++ b/core/cxx_stl_setup.mk
@@ -110,8 +110,11 @@
ifndef LOCAL_IS_HOST_MODULE
my_c_includes += bionic/libstdc++/include
my_system_shared_libraries += libstdc++
+ else
+ # Host builds will use the system C++. libc++ on Darwin, GNU libstdc++ everywhere else
+ my_cppflags += $($(my_prefix)SYSTEMCPP_CPPFLAGS)
+ my_ldflags += $($(my_prefix)SYSTEMCPP_LDFLAGS)
endif
- # Host builds will use GNU libstdc++.
else ifeq ($(my_cxx_stl),none)
ifdef LOCAL_IS_HOST_MODULE
my_cppflags += -nostdinc++
diff --git a/core/ninja.mk b/core/ninja.mk
index 44c3ef3..ef627c8 100644
--- a/core/ninja.mk
+++ b/core/ninja.mk
@@ -160,8 +160,8 @@
+$(hide) $(KATI_MAKEPARALLEL) $(KATI) --ninja --ninja_dir=$(OUT_DIR) --ninja_suffix=$(KATI_NINJA_SUFFIX) --regen --ignore_dirty=$(OUT_DIR)/% --no_ignore_dirty=$(SOONG_ANDROID_MK) --ignore_optional_include=$(OUT_DIR)/%.P --detect_android_echo $(KATI_FIND_EMULATOR) -f build/core/main.mk $(KATI_GOALS) --gen_all_targets BUILDING_WITH_NINJA=true SOONG_ANDROID_MK=$(SOONG_ANDROID_MK)
ifneq ($(USE_SOONG_FOR_KATI),true)
-KATI_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS)
-KATI_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS)
+KATI_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS) $(HOST_SYSTEMCPP_CPPFLAGS)
+KATI_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS) $(HOST_SYSTEMCPP_LDFLAGS)
# Build static ckati. Unfortunately Mac OS X doesn't officially support static exectuables.
ifeq ($(BUILD_OS),linux)
# We need everything in libpthread.a otherwise C++11's threading library will be disabled.
@@ -172,8 +172,8 @@
KATI_BIN_PATH := $(HOST_OUT_EXECUTABLES)
include build/kati/Makefile.ckati
-MAKEPARALLEL_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS)
-MAKEPARALLEL_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS)
+MAKEPARALLEL_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS) $(HOST_SYSTEMCPP_CPPFLAGS)
+MAKEPARALLEL_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS) $(HOST_SYSTEMCPP_LDFLAGS)
# Build static makeparallel. Unfortunately Mac OS X doesn't officially support static exectuables.
ifeq ($(BUILD_OS),linux)
MAKEPARALLEL_LD += -static
