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cmake: migrate dependency detections to Find modules

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For: libgsasl, libidn2, libssh, libuv.

The new Find modules retain using `pkg-config` natively, not as a "hint"
for the CMake-native detection. Of the pre-existing Find modules, only
FindNettle, and FindGSS (with customized code) work this way. Align
detection code for the new modules and add version detection for the
CMake-native paths.

Also, add CMake-native detection for `libgsasl`.

The remaining outlier in `CMakeLists.txt` is GnuTLS, which has
a CMake built-in Find module, but which lacks `pkg-config` support,
required for vcpkg. It remains unchanged.

Another part-outlier is `libssh`, which keeps requiring the trick
`find_package(libssh CONFIG QUIET)` for reasons I could not yet figure
out.

Closes #14555
This commit is contained in:
Viktor Szakats 2024-08-19 14:27:51 +02:00
parent cd683f9071
commit 422696f0a4
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6 changed files with 350 additions and 44 deletions
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76
CMake/FindLibidn2.cmake Normal file
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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 libidn2 library
#
# Input variables:
#
# LIBIDN2_INCLUDE_DIR The libidn2 include directory
# LIBIDN2_LIBRARY Path to libidn2 library
#
# Result variables:
#
# LIBIDN2_FOUND System has libidn2
# LIBIDN2_INCLUDE_DIRS The libidn2 include directories
# LIBIDN2_LIBRARIES The libidn2 library names
# LIBIDN2_VERSION Version of libidn2
if(CURL_USE_PKGCONFIG AND
NOT DEFINED LIBIDN2_INCLUDE_DIR AND
NOT DEFINED LIBIDN2_LIBRARY)
find_package(PkgConfig QUIET)
pkg_check_modules(LIBIDN2 "libidn2")
endif()
if(LIBIDN2_FOUND)
set(LIBIDN2_LIBRARIES ${LIBIDN2_LINK_LIBRARIES})
message(STATUS "Found Libidn2 (via pkg-config): ${LIBIDN2_INCLUDE_DIRS} (Found version \"${LIBIDN2_VERSION}\")")
else()
find_path(LIBIDN2_INCLUDE_DIR NAMES "idn2.h")
find_library(LIBIDN2_LIBRARY NAMES "idn2" "libidn2")
if(LIBIDN2_INCLUDE_DIR AND EXISTS "${LIBIDN2_INCLUDE_DIR}/idn2.h")
set(_version_regex "#[\t ]*define[\t ]+IDN2_VERSION[\t ]+\"([^\"]*)\"")
file(STRINGS "${LIBIDN2_INCLUDE_DIR}/idn2.h" _version_str REGEX "${_version_regex}")
string(REGEX REPLACE "${_version_regex}" "\\1" _version_str "${_version_str}")
set(LIBIDN2_VERSION "${_version_str}")
unset(_version_regex)
unset(_version_str)
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Libidn2
REQUIRED_VARS
LIBIDN2_INCLUDE_DIR
LIBIDN2_LIBRARY
VERSION_VAR
LIBIDN2_VERSION
)
if(LIBIDN2_FOUND)
set(LIBIDN2_INCLUDE_DIRS ${LIBIDN2_INCLUDE_DIR})
set(LIBIDN2_LIBRARIES ${LIBIDN2_LIBRARY})
endif()
mark_as_advanced(LIBIDN2_INCLUDE_DIR LIBIDN2_LIBRARY)
endif()