FindOGG.cmake module added

cmake/FindOGG.cmake

@@ -0,0 +1,34 @@
+find_package(PkgConfig)
+pkg_check_modules(_OGG QUIET ogg)
+
+find_path(_OGG_INCLUDE_DIR
+    NAMES "ogg/ogg.h"
+    PATHS ${_OGG_INCLUDE_DIRS})
+
+find_library(_OGG_LIBRARY
+    NAMES ogg libogg
+    HINTS ${_OGG_LIBRARY_DIRS})
+
+find_library(_OGG_LIBRARY_STATIC
+    NAMES libogg.a libogg_static
+    HINTS ${_OGG_LIBRARY_DIRS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(OGG
+    REQUIRED_VARS _OGG_INCLUDE_DIR _OGG_LIBRARY
+    VERSION_VAR _OGG_VERSION)
+
+if(OGG_FOUND)
+    if(NOT Ogg::Ogg)
+        add_library(Ogg::Ogg UNKNOWN IMPORTED)
+        set_target_properties(Ogg::Ogg PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${_OGG_INCLUDE_DIR}"
+            IMPORTED_LOCATION "${_OGG_LIBRARY}")
+    endif()
+    if(NOT Ogg::Ogg-static AND _OGG_LIBRARY_STATIC)
+        add_library(Ogg::Ogg-static STATIC IMPORTED)
+        set_target_properties(Ogg::Ogg-static PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${_OGG_INCLUDE_DIR}"
+            IMPORTED_LOCATION "${_OGG_LIBRARY_STATIC}")
+    endif()
+endif()