un-nest curl

curl-8.15.0/CMake/FindLibpsl.cmake

@@ -0,0 +1,83 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  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 libpsl library
+#
+# Input variables:
+#
+# - `LIBPSL_INCLUDE_DIR`:   The libpsl include directory.
+# - `LIBPSL_LIBRARY`:       Path to `libpsl` library.
+#
+# Result variables:
+#
+# - `LIBPSL_FOUND`:         System has libpsl.
+# - `LIBPSL_INCLUDE_DIRS`:  The libpsl include directories.
+# - `LIBPSL_LIBRARIES`:     The libpsl library names.
+# - `LIBPSL_LIBRARY_DIRS`:  The libpsl library directories.
+# - `LIBPSL_PC_REQUIRES`:   The libpsl pkg-config packages.
+# - `LIBPSL_CFLAGS`:        Required compiler flags.
+# - `LIBPSL_VERSION`:       Version of libpsl.
+
+set(LIBPSL_PC_REQUIRES "libpsl")
+
+if(CURL_USE_PKGCONFIG AND
+   NOT DEFINED LIBPSL_INCLUDE_DIR AND
+   NOT DEFINED LIBPSL_LIBRARY)
+  find_package(PkgConfig QUIET)
+  pkg_check_modules(LIBPSL ${LIBPSL_PC_REQUIRES})
+endif()
+
+if(LIBPSL_FOUND AND LIBPSL_INCLUDE_DIRS)
+  set(Libpsl_FOUND TRUE)
+  string(REPLACE ";" " " LIBPSL_CFLAGS "${LIBPSL_CFLAGS}")
+  message(STATUS "Found Libpsl (via pkg-config): ${LIBPSL_INCLUDE_DIRS} (found version \"${LIBPSL_VERSION}\")")
+else()
+  find_path(LIBPSL_INCLUDE_DIR NAMES "libpsl.h")
+  find_library(LIBPSL_LIBRARY NAMES "psl" "libpsl")
+
+  unset(LIBPSL_VERSION CACHE)
+  if(LIBPSL_INCLUDE_DIR AND EXISTS "${LIBPSL_INCLUDE_DIR}/libpsl.h")
+    set(_version_regex "#[\t ]*define[\t ]+PSL_VERSION[\t ]+\"([^\"]*)\"")
+    file(STRINGS "${LIBPSL_INCLUDE_DIR}/libpsl.h" _version_str REGEX "${_version_regex}")
+    string(REGEX REPLACE "${_version_regex}" "\\1" _version_str "${_version_str}")
+    set(LIBPSL_VERSION "${_version_str}")
+    unset(_version_regex)
+    unset(_version_str)
+  endif()
+
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(Libpsl
+    REQUIRED_VARS
+      LIBPSL_INCLUDE_DIR
+      LIBPSL_LIBRARY
+    VERSION_VAR
+      LIBPSL_VERSION
+  )
+
+  if(LIBPSL_FOUND)
+    set(LIBPSL_INCLUDE_DIRS ${LIBPSL_INCLUDE_DIR})
+    set(LIBPSL_LIBRARIES    ${LIBPSL_LIBRARY})
+  endif()
+
+  mark_as_advanced(LIBPSL_INCLUDE_DIR LIBPSL_LIBRARY)
+endif()