1 #############################################################
2 ## Set up flags based on LOCAL_CXX_STL.
3 ## Input variables: LOCAL_CXX_STL
4 ## Output variables: My_cflags, my_c_includes, my_shared_libraries, etc.
5 #############################################################
7 # Select the appropriate C++ STL
8 ifeq ($(strip $(LOCAL_CXX_STL)),default)
9 ifndef LOCAL_SDK_VERSION
10 # Platform code. Select the appropriate STL.
13 ifdef LOCAL_IS_HOST_MODULE
14 ifneq (,$(BUILD_HOST_static))
15 my_cxx_stl := libc++_static
19 # libc++ is not supported on mingw.
20 my_cxx_stl := libstdc++
26 my_cxx_stl := $(strip $(LOCAL_CXX_STL))
29 # Yes, this is actually what the clang driver does.
30 HOST_linux_dynamic_gcclibs := -lgcc_s -lgcc -lc -lgcc_s -lgcc
31 HOST_linux_static_gcclibs := -Wl,--start-group -lgcc -lgcc_eh -lc -Wl,--end-group
32 HOST_darwin_dynamic_gcclibs := -lc -lSystem
33 HOST_darwin_static_gcclibs := NO_STATIC_HOST_BINARIES_ON_DARWIN
35 my_link_type := dynamic
36 ifdef LOCAL_IS_HOST_MODULE
37 ifneq (,$(BUILD_HOST_static))
38 my_link_type := static
40 ifeq (-static,$(filter -static,$(my_ldflags)))
41 my_link_type := static
44 ifeq (true,$(LOCAL_FORCE_STATIC_EXECUTABLE))
45 my_link_type := static
49 ifneq ($(filter $(my_cxx_stl),libc++ libc++_static),)
50 my_cflags += -D_USING_LIBCXX
51 my_c_includes += external/libcxx/include
52 ifeq ($(my_cxx_stl),libc++)
53 my_shared_libraries += libc++
55 my_static_libraries += libc++_static
56 ifndef LOCAL_IS_HOST_MODULE
57 ifeq ($(LOCAL_FORCE_STATIC_EXECUTABLE),true)
58 my_static_libraries += libm libc libdl
63 ifdef LOCAL_IS_HOST_MODULE
64 my_cppflags += -nostdinc++
65 my_ldflags += -nodefaultlibs
66 my_ldlibs += -lpthread -lm
67 my_ldlibs += $($(my_prefix)$(HOST_OS)_$(my_link_type)_gcclibs)
69 ifeq (arm,$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH))
70 my_static_libraries += libunwind_llvm
73 ifeq ($(my_link_type),static)
74 my_static_libraries += libdl
76 my_shared_libraries += libdl
79 else ifneq ($(filter $(my_cxx_stl),stlport stlport_static),)
80 ifndef LOCAL_IS_HOST_MODULE
81 my_c_includes += external/stlport/stlport bionic/libstdc++/include \
83 ifeq ($(my_cxx_stl),stlport)
84 my_shared_libraries += libstdc++ libstlport
86 my_static_libraries += libstdc++ libstlport_static
89 else ifeq ($(my_cxx_stl),ndk)
90 # Using an NDK STL. Handled farther up in this file.
91 ifndef LOCAL_IS_HOST_MODULE
92 my_system_shared_libraries += libstdc++
94 else ifeq ($(my_cxx_stl),libstdc++)
95 # Using bionic's basic libstdc++. Not actually an STL. Only around until the
96 # tree is in good enough shape to not need it.
97 ifndef LOCAL_IS_HOST_MODULE
98 my_c_includes += bionic/libstdc++/include
99 my_system_shared_libraries += libstdc++
101 # Host builds will use GNU libstdc++.
102 else ifeq ($(my_cxx_stl),none)
103 ifdef LOCAL_IS_HOST_MODULE
104 my_cppflags += -nostdinc++
105 my_ldflags += -nodefaultlibs
106 my_ldlibs += $($(my_prefix)$(HOST_OS)_$(my_link_type)_gcclibs)
109 $(error $(my_cxx_stl) is not a supported STL.)