cxx_stl_setup.mk revision 4f2afde2528c6870eef470436842eabdd76953c3 
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#############################################################
6
7# Select the appropriate C++ STL
8ifeq ($(strip $(LOCAL_CXX_STL)),default)
9    ifndef LOCAL_SDK_VERSION
10        # Platform code. Select the appropriate STL.
11        ifndef USE_MINGW
12            my_cxx_stl := libc++
13            ifdef LOCAL_IS_HOST_MODULE
14                ifneq (,$(BUILD_HOST_static))
15                    my_cxx_stl := libc++_static
16                endif
17            endif
18        else
19            # libc++ is not supported on mingw.
20            my_cxx_stl := libstdc++
21        endif
22    else
23        my_cxx_stl := ndk
24    endif
25else
26    my_cxx_stl := $(strip $(LOCAL_CXX_STL))
27endif
28
29# Yes, this is actually what the clang driver does.
30HOST_dynamic_gcclibs := -lgcc_s -lgcc -lc -lgcc_s -lgcc
31HOST_static_gcclibs := -Wl,--start-group -lgcc -lgcc_eh -lc -Wl,--end-group
32
33ifneq ($(filter $(my_cxx_stl),libc++ libc++_static),)
34    my_cflags += -D_USING_LIBCXX
35    my_c_includes += external/libcxx/include
36    ifeq ($(my_cxx_stl),libc++)
37        my_shared_libraries += libc++
38    else
39        my_static_libraries += libc++_static
40    endif
41
42    ifdef LOCAL_IS_HOST_MODULE
43        my_cppflags += -nostdinc++
44        my_ldflags += -nodefaultlibs
45        my_ldlibs += -lpthread -lm
46        ifeq (,$(BUILD_HOST_static))
47            my_ldlibs += $(HOST_dynamic_gcclibs)
48        else
49            my_ldlibs += $(HOST_static_gcclibs)
50        endif
51    endif
52else ifneq ($(filter $(my_cxx_stl),stlport stlport_static),)
53    ifndef LOCAL_IS_HOST_MODULE
54        my_c_includes += external/stlport/stlport bionic/libstdc++/include \
55                         bionic
56        ifeq ($(my_cxx_stl),stlport)
57            my_shared_libraries += libstdc++ libstlport
58        else
59            my_static_libraries += libstdc++ libstlport_static
60        endif
61    endif
62else ifeq ($(my_cxx_stl),ndk)
63    # Using an NDK STL. Handled farther up in this file.
64    ifndef LOCAL_IS_HOST_MODULE
65        my_system_shared_libraries += libstdc++
66    endif
67else ifeq ($(my_cxx_stl),libstdc++)
68    # Using bionic's basic libstdc++. Not actually an STL. Only around until the
69    # tree is in good enough shape to not need it.
70    ifndef LOCAL_IS_HOST_MODULE
71        my_c_includes += bionic/libstdc++/include
72        my_system_shared_libraries += libstdc++
73    endif
74    # Host builds will use GNU libstdc++.
75else ifeq ($(my_cxx_stl),none)
76    ifdef LOCAL_IS_HOST_MODULE
77        my_cppflags += -nostdinc++
78        my_ldflags += -nodefaultlibs
79        ifeq (,$(BUILD_HOST_static))
80            my_ldlibs += $(HOST_dynamic_gcclibs)
81        else
82            my_ldlibs += $(HOST_static_gcclibs)
83        endif
84    endif
85else
86    $(error $(my_cxx_stl) is not a supported STL.)
87endif
88