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#
# 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 in the LICENSE file at the
# root of this repository, or online 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.

"""
Builds zlib.

Derived from: <https://github.com/rust-lang/libz-sys/blob/8462d47d51e36c8cd7fa83db3cbcc2b725385650/build.rs>
"""

cc_library(
    name = "zlib",
    srcs = [
        "src/zlib/adler32.c",
        "src/zlib/compress.c",
        "src/zlib/crc32.c",
        "src/zlib/deflate.c",
        "src/zlib/infback.c",
        "src/zlib/inffast.c",
        "src/zlib/inflate.c",
        "src/zlib/inftrees.c",
        "src/zlib/trees.c",
        "src/zlib/uncompr.c",
        "src/zlib/zutil.c",
    ],
    hdrs = [
        "src/zlib/crc32.h",
        "src/zlib/deflate.h",
        "src/zlib/inffast.h",
        "src/zlib/inffixed.h",
        "src/zlib/inflate.h",
        "src/zlib/inftrees.h",
        "src/zlib/trees.h",
        "src/zlib/zconf.h",
        "src/zlib/zlib.h",
        "src/zlib/zutil.h",
    ],
    copts = select({
        "//conditions:default": [
            "-Wno-unused-variable",
            "-Wno-implicit-function-declaration",
            "-Wno-deprecated-non-prototype",
            "-Wno-macro-redefined",
            "-fvisibility=hidden",
        ],
    }),
    includes = ["src/zlib"],
    local_defines = [
        "Z_SOLO",
        "STDC",
        "_LARGEFILE64_SOURCE",
        "_POSIX_SOURCE",
    ] + select({
        "@platforms//os:macos": [
            "_C99_SOURCE",
        ],
        "//conditions:default": [],
    }),
    visibility = ["//visibility:public"],
)