Adding upstream version 2.0.24.

Signed-off-by: Daniel Baumann <daniel@debian.org>

CMakeModules/FindLibYANG.cmake

@@ -0,0 +1,89 @@
+# - Try to find LibYANG
+# Once done this will define
+#
+#  LIBYANG_FOUND - system has LibYANG
+#  LIBYANG_INCLUDE_DIRS - the LibYANG include directory
+#  LIBYANG_LIBRARIES - Link these to use LibYANG
+#  LIBYANG_VERSION - SO version of the found libyang library
+#
+#  Author Michal Vasko <mvasko@cesnet.cz>
+#  Copyright (c) 2021 CESNET, z.s.p.o.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  1. Redistributions of source code must retain the copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#  3. The name of the author may not be used to endorse or promote products
+#     derived from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+#  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+#  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+#  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+#  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+#  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+#  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+include(FindPackageHandleStandardArgs)
+
+if(LIBYANG_LIBRARIES AND LIBYANG_INCLUDE_DIRS)
+    # in cache already
+    set(LIBYANG_FOUND TRUE)
+else()
+    find_path(LIBYANG_INCLUDE_DIR
+        NAMES
+        libyang/libyang.h
+        PATHS
+        /usr/include
+        /usr/local/include
+        /opt/local/include
+        /sw/include
+        ${CMAKE_INCLUDE_PATH}
+        ${CMAKE_INSTALL_PREFIX}/include
+    )
+
+    find_library(LIBYANG_LIBRARY
+        NAMES
+        yang
+        libyang
+        PATHS
+        /usr/lib
+        /usr/lib64
+        /usr/local/lib
+        /usr/local/lib64
+        /opt/local/lib
+        /sw/lib
+        ${CMAKE_LIBRARY_PATH}
+        ${CMAKE_INSTALL_PREFIX}/lib
+    )
+
+    if(LIBYANG_INCLUDE_DIR)
+        find_path(LY_VERSION_PATH "libyang/version.h" HINTS ${LIBYANG_INCLUDE_DIR})
+        if(LY_VERSION_PATH)
+            file(READ "${LY_VERSION_PATH}/libyang/version.h" LY_VERSION_FILE)
+        else()
+            find_path(LY_HEADER_PATH "libyang/libyang.h" HINTS ${LIBYANG_INCLUDE_DIR})
+            file(READ "${LY_HEADER_PATH}/libyang/libyang.h" LY_VERSION_FILE)
+        endif()
+        string(REGEX MATCH "#define LY_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\"" LY_VERSION_MACRO "${LY_VERSION_FILE}")
+        string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" LIBYANG_VERSION "${LY_VERSION_MACRO}")
+    endif()
+
+    set(LIBYANG_INCLUDE_DIRS ${LIBYANG_INCLUDE_DIR})
+    set(LIBYANG_LIBRARIES ${LIBYANG_LIBRARY})
+    mark_as_advanced(LIBYANG_INCLUDE_DIRS LIBYANG_LIBRARIES)
+
+    # handle the QUIETLY and REQUIRED arguments and set LIBYANG_FOUND to TRUE
+    # if all listed variables are TRUE
+    find_package_handle_standard_args(LibYANG FOUND_VAR LIBYANG_FOUND
+        REQUIRED_VARS LIBYANG_LIBRARY LIBYANG_INCLUDE_DIR
+        VERSION_VAR LIBYANG_VERSION)
+endif()