初始化内容

2026-09-16 14:07:40 +08:00
parent 6934b390bf
commit 4f643c1e7c
18350 changed files with 6088489 additions and 305 deletions
@@ -0,0 +1,94 @@
+#[=======================================================================[.rst:
+
+FindOgg
+--------
+
+Find the native Ogg includes and library.
+
+IMPORTED Targets
+^^^^^^^^^^^^^^^^
+
+This module defines :prop_tgt:`IMPORTED` target ``Ogg::ogg``, if
+Ogg has been found.
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+This module defines the following variables:
+
+::
+
+  OGG_INCLUDE_DIRS    - where to find ogg.h, etc.
+  OGG_LIBRARIES       - List of libraries when using ogg.
+  OGG_FOUND           - True if ogg found.
+
+::
+
+  OGG_VERSION_STRING  - The version of ogg found (x.y.z)
+
+Hints
+^^^^^
+
+A user may set ``OGG_ROOT`` to a ogg installation root to tell this
+module where to look.
+#]=======================================================================]
+
+if(OGG_INCLUDE_DIR)
+  # Already in cache, be silent
+  set(OGG_FIND_QUIETLY TRUE)
+endif()
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_OGG QUIET ogg)
+
+set(OGG_VERSION_STRING ${PC_OGG_VERSION})
+
+find_path(OGG_INCLUDE_DIR ogg/ogg.h
+    HINTS
+        ${PC_OGG_INCLUDEDIR}
+        ${PC_OGG_INCLUDE_DIRS}
+        ${OGG_ROOT}
+    PATH_SUFFIXES
+        include
+)
+# MSVC built ogg may be named ogg_static.
+# The provided project files name the library with the lib prefix.
+find_library(OGG_LIBRARY
+    NAMES
+        ogg
+        ogg_static
+        libogg
+        libogg_static
+    HINTS
+        ${PC_OGG_LIBDIR}
+        ${PC_OGG_LIBRARY_DIRS}
+        ${OGG_ROOT}
+    PATH_SUFFIXES
+        lib
+)
+
+# Handle the QUIETLY and REQUIRED arguments and set OGG_FOUND
+# to TRUE if all listed variables are TRUE.
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Ogg
+    REQUIRED_VARS
+        OGG_LIBRARY
+        OGG_INCLUDE_DIR
+    VERSION_VAR
+        OGG_VERSION_STRING
+)
+
+if(OGG_FOUND)
+    set(OGG_LIBRARIES ${OGG_LIBRARY})
+    set(OGG_INCLUDE_DIRS ${OGG_INCLUDE_DIR})
+
+    if(NOT TARGET Ogg::ogg)
+    add_library(Ogg::ogg UNKNOWN IMPORTED)
+        set_target_properties(Ogg::ogg PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${OGG_INCLUDE_DIRS}"
+            IMPORTED_LOCATION "${OGG_LIBRARIES}"
+        )
+  endif()
+endif()
+
+mark_as_advanced(OGG_INCLUDE_DIR OGG_LIBRARY)