pytorch

1
load("@rules_cc//cc:defs.bzl", "cc_library")
2
load("@bazel_skylib//rules:common_settings.bzl", "bool_flag", "string_flag")
3

4
package(default_visibility = ["//visibility:public"])
5

6
bool_flag(
7
    name = "with_abseil",
8
    build_setting_default = False,
9
)
10

11
CPP_STDLIBS = [
12
    "none",
13
    "best",
14
    "2014",
15
    "2017",
16
    "2020",
17
    "2023",
18
]
19

20
string_flag(
21
    name = "with_cxx_stdlib",
22
    build_setting_default = "best",
23
    values = CPP_STDLIBS,
24
)
25

26
cc_library(
27
    name = "api",
28
    hdrs = glob(["include/**/*.h"]),
29
    defines = select({
30
        ":with_external_abseil": ["HAVE_ABSEIL"],
31
        "//conditions:default": [],
32
    }) + select({
33
        ":set_cxx_stdlib_none": [],
34
        ### automatic selection
35
        ":set_cxx_stdlib_best": ["OPENTELEMETRY_STL_VERSION=(__cplusplus/100)"],
36
        # See https://learn.microsoft.com/en-us/cpp/build/reference/zc-cplusplus
37
        ":set_cxx_stdlib_best_and_msvc": ["OPENTELEMETRY_STL_VERSION=(_MSVC_LANG/100)"],
38
        ### manual selection
39
        ":set_cxx_stdlib_2014": ["OPENTELEMETRY_STL_VERSION=2014"],
40
        ":set_cxx_stdlib_2017": ["OPENTELEMETRY_STL_VERSION=2017"],
41
        ":set_cxx_stdlib_2020": ["OPENTELEMETRY_STL_VERSION=2020"],
42
        ":set_cxx_stdlib_2023": ["OPENTELEMETRY_STL_VERSION=2023"],
43
        "//conditions:default": [],
44
    }),
45
    strip_include_prefix = "include",
46
    tags = ["api"],
47
    deps = select({
48
        ":with_external_abseil": [
49
            "@com_google_absl//absl/base",
50
            "@com_google_absl//absl/strings",
51
            "@com_google_absl//absl/types:variant",
52
        ],
53
        "//conditions:default": [],
54
    }),
55
)
56

57
config_setting(
58
    name = "with_external_abseil",
59
    flag_values = {":with_abseil": "true"},
60
)
61

62
[config_setting(
63
    name = "set_cxx_stdlib_%s" % v,
64
    flag_values = {":with_cxx_stdlib": v},
65
) for v in CPP_STDLIBS]
66

67
config_setting(
68
    name = "set_cxx_stdlib_best_and_msvc",
69
    constraint_values = ["@bazel_tools//tools/cpp:msvc"],
70
    flag_values = {":with_cxx_stdlib": "best"},
71
)
72