-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathFindNGTCP2.cmake
130 lines (118 loc) · 4.76 KB
/
FindNGTCP2.cmake
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <[email protected]>, 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 ngtcp2 library
#
# This module accepts optional COMPONENTS to control the crypto library (these are
# mutually exclusive):
#
# - quictls: Use `libngtcp2_crypto_quictls`. (choose this for LibreSSL)
# - BoringSSL: Use `libngtcp2_crypto_boringssl`. (choose this for AWS-LC)
# - wolfSSL: Use `libngtcp2_crypto_wolfssl`.
# - GnuTLS: Use `libngtcp2_crypto_gnutls`.
#
# Input variables:
#
# - `NGTCP2_INCLUDE_DIR`: The ngtcp2 include directory.
# - `NGTCP2_LIBRARY`: Path to `ngtcp2` library.
#
# Result variables:
#
# - `NGTCP2_FOUND`: System has ngtcp2.
# - `NGTCP2_INCLUDE_DIRS`: The ngtcp2 include directories.
# - `NGTCP2_LIBRARIES`: The ngtcp2 library names.
# - `NGTCP2_LIBRARY_DIRS`: The ngtcp2 library directories.
# - `NGTCP2_PC_REQUIRES`: The ngtcp2 pkg-config packages.
# - `NGTCP2_CFLAGS`: Required compiler flags.
# - `NGTCP2_VERSION`: Version of ngtcp2.
if(NGTCP2_FIND_COMPONENTS)
set(_ngtcp2_crypto_backend "")
foreach(_component IN LISTS NGTCP2_FIND_COMPONENTS)
if(_component MATCHES "^(BoringSSL|quictls|wolfSSL|GnuTLS)")
if(_ngtcp2_crypto_backend)
message(FATAL_ERROR "NGTCP2: Only one crypto library can be selected")
endif()
set(_ngtcp2_crypto_backend ${_component})
endif()
endforeach()
if(_ngtcp2_crypto_backend)
string(TOLOWER "ngtcp2_crypto_${_ngtcp2_crypto_backend}" _crypto_library_lower)
string(TOUPPER "ngtcp2_crypto_${_ngtcp2_crypto_backend}" _crypto_library_upper)
endif()
endif()
set(NGTCP2_PC_REQUIRES "libngtcp2")
if(_ngtcp2_crypto_backend)
set(NGTCP2_CRYPTO_PC_REQUIRES "lib${_crypto_library_lower}")
endif()
if(CURL_USE_PKGCONFIG AND
NOT DEFINED NGTCP2_INCLUDE_DIR AND
NOT DEFINED NGTCP2_LIBRARY)
find_package(PkgConfig QUIET)
pkg_check_modules(NGTCP2 ${NGTCP2_PC_REQUIRES})
if(_ngtcp2_crypto_backend)
pkg_check_modules("${_crypto_library_upper}" ${NGTCP2_CRYPTO_PC_REQUIRES})
else()
set("${_crypto_library_upper}_FOUND" TRUE)
endif()
endif()
list(APPEND NGTCP2_PC_REQUIRES ${NGTCP2_CRYPTO_PC_REQUIRES})
if(NGTCP2_FOUND AND "${${_crypto_library_upper}_FOUND}")
list(APPEND NGTCP2_LIBRARIES "${${_crypto_library_upper}_LIBRARIES}")
list(REMOVE_DUPLICATES NGTCP2_LIBRARIES)
string(REPLACE ";" " " NGTCP2_CFLAGS "${NGTCP2_CFLAGS}")
message(STATUS "Found NGTCP2 (via pkg-config): ${NGTCP2_INCLUDE_DIRS} (found version \"${NGTCP2_VERSION}\")")
else()
find_path(NGTCP2_INCLUDE_DIR NAMES "ngtcp2/ngtcp2.h")
find_library(NGTCP2_LIBRARY NAMES "ngtcp2")
unset(NGTCP2_VERSION CACHE)
if(NGTCP2_INCLUDE_DIR AND EXISTS "${NGTCP2_INCLUDE_DIR}/ngtcp2/version.h")
set(_version_regex "#[\t ]*define[\t ]+NGTCP2_VERSION[\t ]+\"([^\"]*)\"")
file(STRINGS "${NGTCP2_INCLUDE_DIR}/ngtcp2/version.h" _version_str REGEX "${_version_regex}")
string(REGEX REPLACE "${_version_regex}" "\\1" _version_str "${_version_str}")
set(NGTCP2_VERSION "${_version_str}")
unset(_version_regex)
unset(_version_str)
endif()
if(_ngtcp2_crypto_backend)
get_filename_component(_ngtcp2_library_dir "${NGTCP2_LIBRARY}" DIRECTORY)
find_library(${_crypto_library_upper}_LIBRARY NAMES ${_crypto_library_lower} HINTS ${_ngtcp2_library_dir})
if(${_crypto_library_upper}_LIBRARY)
set(NGTCP2_${_ngtcp2_crypto_backend}_FOUND TRUE)
set(NGTCP2_CRYPTO_LIBRARY ${${_crypto_library_upper}_LIBRARY})
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(NGTCP2
REQUIRED_VARS
NGTCP2_INCLUDE_DIR
NGTCP2_LIBRARY
VERSION_VAR
NGTCP2_VERSION
HANDLE_COMPONENTS
)
if(NGTCP2_FOUND)
set(NGTCP2_INCLUDE_DIRS ${NGTCP2_INCLUDE_DIR})
set(NGTCP2_LIBRARIES ${NGTCP2_LIBRARY} ${NGTCP2_CRYPTO_LIBRARY})
endif()
mark_as_advanced(NGTCP2_INCLUDE_DIR NGTCP2_LIBRARY NGTCP2_CRYPTO_LIBRARY)
endif()