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# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import("libc++.gni")
config("config") {
if (use_custom_libcxx) {
defines = [
"_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS",
"_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS",
]
cflags_cc = [
"-nostdinc++",
"-isystem" + rebase_path("$libcxx_prefix/include", root_build_dir),
"-isystem" + rebase_path("$libcxxabi_prefix/include", root_build_dir),
]
# In theory here we want just -nostdlib++ to avoid linking both libc++ and
# libstdc++. Unfortunately the -nostdlib++ switch is available only in
# bleeding edge versions of clang. So, in order to get rid of libstdc++
# we have to remove all libs and then re-add the core ones like libc.
ldflags = [ "-nodefaultlibs" ]
libs = [
"c", # libc: the core C library.
"m", # libm: math library.
"dl", # libdl: dynamic linking.
"gcc_eh", # gcc exception handling, required by libunwind.
]
}
}
group("deps") {
if (use_custom_libcxx) {
public_deps = [
"//buildtools:libc++",
]
}
}
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