First Commit

cmake/CheckLib.cmake

@@ -0,0 +1,43 @@
+include(FindPkgConfig OPTIONAL)
+
+macro(_internal_message msg)
+	message("${msg}")
+endmacro()
+
+macro(check_lib var lib)
+	set(_arg_list ${ARGN})
+
+	if(PKG_CONFIG_FOUND AND NOT DEFINED pcsx2_manually_found_${var})
+		string(TOLOWER ${lib} lower_lib)
+		pkg_search_module(${var} QUIET IMPORTED_TARGET ${lower_lib})
+	endif()
+
+	if(TARGET PkgConfig::${var})
+		_internal_message("-- ${var} found pkg")
+	else()
+		find_library(${var}_LIBRARIES ${lib})
+		if(_arg_list)
+			find_path(${var}_INCLUDE ${_arg_list})
+		else()
+			set(${var}_INCLUDE FALSE)
+		endif()
+
+		if(${var}_LIBRARIES AND ${var}_INCLUDE)
+			add_library(PkgConfig::${var} UNKNOWN IMPORTED GLOBAL)
+			# Imitate what pkg-config would have found
+			set_target_properties(PkgConfig::${var} PROPERTIES
+				IMPORTED_LOCATION "${${var}_LIBRARIES}"
+				INTERFACE_INCLUDE_DIRECTORIES "${${var}_INCLUDE}"
+			)
+			_internal_message("-- ${var} found")
+			set(${var}_FOUND 1 CACHE INTERNAL "")
+			set(pcsx2_manually_found_${var} 1 CACHE INTERNAL "")
+		elseif(${var}_LIBRARIES)
+			_internal_message("-- ${var} not found (miss include)")
+		elseif(${var}_INCLUDE)
+			_internal_message("-- ${var} not found (miss lib)")
+		else()
+			_internal_message("-- ${var} not found")
+		endif()
+	endif()
+endmacro()