cmake/FindDoubleConversion.cmake

# Copyright (c) Facebook, Inc. and its affiliates.
#
# 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.

# Finds libdouble-conversion.
#
# DEFINE DOUBLE_CONVERSION_ROOT_DIR to provide a hint
# This module defines:
# DOUBLE_CONVERSION_INCLUDE_DIR
# DOUBLE_CONVERSION_LIBRARY
#

find_path(DOUBLE_CONVERSION_INCLUDE_DIR double-conversion/double-conversion.h HINTS ${DOUBLE_CONVERSION_ROOT_DIR}/include)
find_library(DOUBLE_CONVERSION_LIBRARY 
            NAMES double-conversion
            HINTS ${DOUBLE_CONVERSION_ROOT_DIR}/lib /usr/lib/ /usr/local/lib/ /usr/lib/x86_64-linux-gnu/)

include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(
    DOUBLE_CONVERSION DEFAULT_MSG
    DOUBLE_CONVERSION_LIBRARY DOUBLE_CONVERSION_INCLUDE_DIR)

if (NOT DOUBLE_CONVERSION_FOUND)
  message(STATUS "Using third-party bundled double-conversion")
else()
  message(STATUS "Found double-conversion: ${DOUBLE_CONVERSION_LIBRARY}")
endif (NOT DOUBLE_CONVERSION_FOUND)

mark_as_advanced(DOUBLE_CONVERSION_INCLUDE_DIR DOUBLE_CONVERSION_LIBRARY)