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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
# Find the nghttp2 library
#
# Input variables:
#
# - `NGHTTP2_INCLUDE_DIR`: Absolute path to nghttp2 include directory.
# - `NGHTTP2_LIBRARY`: Absolute path to `nghttp2` library.
#
# Defines:
#
# - `NGHTTP2_FOUND`: System has nghttp2.
# - `NGHTTP2_VERSION`: Version of nghttp2.
# - `CURL::nghttp2`: nghttp2 library target.
set(_nghttp2_pc_requires "libnghttp2")
if(CURL_USE_PKGCONFIG AND
NOT DEFINED NGHTTP2_INCLUDE_DIR AND
NOT DEFINED NGHTTP2_LIBRARY)
find_package(PkgConfig QUIET)
pkg_check_modules(_nghttp2 ${_nghttp2_pc_requires})
endif()
if(_nghttp2_FOUND)
set(NGHTTP2_FOUND TRUE)
set(NGHTTP2_VERSION ${_nghttp2_VERSION})
message(STATUS "Found NGHTTP2 (via pkg-config): ${_nghttp2_INCLUDE_DIRS} (found version \"${NGHTTP2_VERSION}\")")
else()
find_path(NGHTTP2_INCLUDE_DIR NAMES "nghttp2/nghttp2.h")
find_library(NGHTTP2_LIBRARY NAMES "nghttp2" "nghttp2_static")
unset(NGHTTP2_VERSION CACHE)
if(NGHTTP2_INCLUDE_DIR AND EXISTS "${NGHTTP2_INCLUDE_DIR}/nghttp2/nghttp2ver.h")
set(_version_regex "#[\t ]*define[\t ]+NGHTTP2_VERSION[\t ]+\"([^\"]*)\"")
file(STRINGS "${NGHTTP2_INCLUDE_DIR}/nghttp2/nghttp2ver.h" _version_str REGEX "${_version_regex}")
string(REGEX REPLACE "${_version_regex}" "\\1" _version_str "${_version_str}")
set(NGHTTP2_VERSION "${_version_str}")
unset(_version_regex)
unset(_version_str)
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(NGHTTP2
REQUIRED_VARS
NGHTTP2_INCLUDE_DIR
NGHTTP2_LIBRARY
VERSION_VAR
NGHTTP2_VERSION
)
if(NGHTTP2_FOUND)
set(_nghttp2_INCLUDE_DIRS ${NGHTTP2_INCLUDE_DIR})
set(_nghttp2_LIBRARIES ${NGHTTP2_LIBRARY})
endif()
mark_as_advanced(NGHTTP2_INCLUDE_DIR NGHTTP2_LIBRARY)
endif()
if(NGHTTP2_FOUND)
if(CMAKE_VERSION VERSION_LESS 3.13)
link_directories(${_nghttp2_LIBRARY_DIRS})
endif()
if(NOT TARGET CURL::nghttp2)
add_library(CURL::nghttp2 INTERFACE IMPORTED)
set_target_properties(CURL::nghttp2 PROPERTIES
INTERFACE_LIBCURL_PC_MODULES "${_nghttp2_pc_requires}"
INTERFACE_COMPILE_OPTIONS "${_nghttp2_CFLAGS}"
INTERFACE_INCLUDE_DIRECTORIES "${_nghttp2_INCLUDE_DIRS}"
INTERFACE_LINK_DIRECTORIES "${_nghttp2_LIBRARY_DIRS}"
INTERFACE_LINK_LIBRARIES "${_nghttp2_LIBRARIES}")
endif()
endif()
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