cxx_stl_setup.mk revision d666bb100965c1465eec5e03af30a30d33fafebe 
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 $(LOCAL_CXX_STL))
27endif
28
29# Yes, this is actually what the clang driver does.
30HOST_linux_dynamic_gcclibs := -lgcc_s -lgcc -lc -lgcc_s -lgcc
31HOST_linux_static_gcclibs := -Wl,--start-group -lgcc -lgcc_eh -lc -Wl,--end-group
32HOST_darwin_dynamic_gcclibs := -lc -lSystem
33HOST_darwin_static_gcclibs := NO_STATIC_HOST_BINARIES_ON_DARWIN
34
35my_link_type := dynamic
36ifdef LOCAL_IS_HOST_MODULE
37    ifneq (,$(BUILD_HOST_static))
38        my_link_type := static
39    endif
40    ifeq (-static,$(filter -static,$(my_ldflags)))
41        my_link_type := static
42    endif
43else
44    ifeq (true,$(LOCAL_FORCE_STATIC_EXECUTABLE))
45        my_link_type := static
46    endif
47endif
48
49ifneq ($(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++
54    else
55        my_static_libraries += libc++_static
56    endif
57
58    ifdef LOCAL_IS_HOST_MODULE
59        my_cppflags += -nostdinc++
60        my_ldflags += -nodefaultlibs
61        my_ldlibs += -lpthread -lm
62        my_ldlibs += $($(my_prefix)$(HOST_OS)_$(my_link_type)_gcclibs)
63    endif
64else ifneq ($(filter $(my_cxx_stl),stlport stlport_static),)
65    ifndef LOCAL_IS_HOST_MODULE
66        my_c_includes += external/stlport/stlport bionic/libstdc++/include \
67                         bionic
68        ifeq ($(my_cxx_stl),stlport)
69            my_shared_libraries += libstdc++ libstlport
70        else
71            my_static_libraries += libstdc++ libstlport_static
72        endif
73    endif
74else ifeq ($(my_cxx_stl),ndk)
75    # Using an NDK STL. Handled farther up in this file.
76    ifndef LOCAL_IS_HOST_MODULE
77        my_system_shared_libraries += libstdc++
78    endif
79else ifeq ($(my_cxx_stl),libstdc++)
80    # Using bionic's basic libstdc++. Not actually an STL. Only around until the
81    # tree is in good enough shape to not need it.
82    ifndef LOCAL_IS_HOST_MODULE
83        my_c_includes += bionic/libstdc++/include
84        my_system_shared_libraries += libstdc++
85    endif
86    # Host builds will use GNU libstdc++.
87else ifeq ($(my_cxx_stl),none)
88    ifdef LOCAL_IS_HOST_MODULE
89        my_cppflags += -nostdinc++
90        my_ldflags += -nodefaultlibs
91        my_ldlibs += $($(my_prefix)$(HOST_OS)_$(my_link_type)_gcclibs)
92    endif
93else
94    $(error $(my_cxx_stl) is not a supported STL.)
95endif
96