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-rw-r--r--FindLibYANG.cmake89
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diff --git a/FindLibYANG.cmake b/FindLibYANG.cmake
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+++ b/FindLibYANG.cmake
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+# - 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()