CMake - Introduce FindPackage script for unirec++ library

TG-35

Author: plnyrich

cmake/dependencies.cmake

@@ -4,6 +4,7 @@ find_package(Python3 REQUIRED COMPONENTS Development NumPy)
 
 if(BUILD_WITH_UNIREC)
 	find_package(UNIREC 3.0.0 REQUIRED)
+	find_package(UNIREC++ 3.2.0 REQUIRED)
 endif()
 
 # Set define for none depricated API for NUMPY

cmake/modules/FindUNIREC++.cmake

@@ -0,0 +1,59 @@
+# Find the Unirec++ includes and library
+#
+# This module defines the following IMPORTED targets:
+#
+#  unirec::unirec++      - The "unirec++" library, if found.
+#
+# This module will set the following variables in your project:
+#
+#  UNIREC++_INCLUDE_DIRS - where to find <unirec++/unirec++.hpp>, etc.
+#  UNIREC++_LIBRARIES    - List of libraries when using unirec++.
+#  UNIREC++_FOUND        - True if the unirec++ library has been found.
+
+# Use pkg-config (if available) to get the library directories and then use
+# these values as hints for find_path() and find_library() functions.
+find_package(PkgConfig QUIET)
+if (PKG_CONFIG_FOUND)
+	pkg_check_modules(PC_UNIREC++ QUIET unirec++)
+endif()
+
+find_path(
+	UNIREC++_INCLUDE_DIR unirec++
+	HINTS ${PC_UNIREC++_INCLUDEDIR} ${PC_UNIREC++_INCLUDE_DIRS}
+	PATH_SUFFIXES include
+)
+
+find_library(
+	UNIREC++_LIBRARY NAMES unirec++
+	HINTS ${PC_UNIREC++_LIBDIR} ${PC_UNIREC++_LIBRARY_DIRS}
+	PATH_SUFFIXES lib lib64
+)
+
+if (PC_UNIREC++_VERSION)
+	# Version extracted from pkg-config
+	set(UNIREC++_VERSION_STRING ${PC_UNIREC++_VERSION})
+endif()
+
+# Handle find_package() arguments (i.e. QUIETLY and REQUIRED) and set
+# UNIREC++_FOUND to TRUE if all listed variables are filled.
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+	UNIREC++
+	REQUIRED_VARS UNIREC++_LIBRARY UNIREC++_INCLUDE_DIR
+	VERSION_VAR UNIREC++_VERSION_STRING
+)
+
+set(UNIREC++_INCLUDE_DIRS ${UNIREC++_INCLUDE_DIR})
+set(UNIREC++_LIBRARIES ${UNIREC++_LIBRARY})
+mark_as_advanced(UNIREC++_INCLUDE_DIR UNIREC++_LIBRARY)
+
+if (UNIREC++_FOUND)
+	# Create imported library with all dependencies
+	if (NOT TARGET unirec::unirec++ AND EXISTS "${UNIREC++_LIBRARIES}")
+		add_library(unirec::unirec++ UNKNOWN IMPORTED)
+		set_target_properties(unirec::unirec++ PROPERTIES
+			IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
+			IMPORTED_LOCATION "${UNIREC++_LIBRARIES}"
+			INTERFACE_INCLUDE_DIRECTORIES "${UNIREC++_INCLUDE_DIRS}")
+	endif()
+endif()