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diff '--color=auto' -arNu a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt 1970-01-01 01:00:00.000000000 +0100
+++ b/CMakeLists.txt 2024-03-03 12:39:28.260224931 +0100
@@ -0,0 +1,107 @@
+cmake_minimum_required(VERSION 2.8.7)
+project(libogg)
+
+# Required modules
+include(GNUInstallDirs)
+include(CheckIncludeFiles)
+
+# Build options
+option(BUILD_SHARED_LIBS "Build shared library" OFF)
+if(APPLE)
+ option(BUILD_FRAMEWORK "Build Framework bundle for OSX" OFF)
+endif()
+
+# Extract project version from configure.ac
+file(READ configure.ac CONFIGURE_AC_CONTENTS)
+string(REGEX MATCH "AC_INIT\\(\\[libogg\\],\\[([0-9]*).([0-9]*).([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
+set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
+set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
+set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
+set(PROJECT_VERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH})
+
+# Helper function to get version-info
+function(get_version_info result current_var_name age_var_name revision_var_name)
+ string(REGEX MATCH "${current_var_name}=([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
+ set(VERSION_INFO_CURRENT ${CMAKE_MATCH_1})
+
+ string(REGEX MATCH "${age_var_name}=([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
+ set(VERSION_INFO_AGE ${CMAKE_MATCH_1})
+
+ string(REGEX MATCH "${revision_var_name}=([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
+ set(VERSION_INFO_REVISION ${CMAKE_MATCH_1})
+
+ math(EXPR VERSION_INFO_CURRENT_MINUS_AGE "${VERSION_INFO_CURRENT} - ${VERSION_INFO_AGE}")
+
+ set(${result} "${VERSION_INFO_CURRENT_MINUS_AGE}.${VERSION_INFO_AGE}.${VERSION_INFO_REVISION}" PARENT_SCOPE)
+endfunction()
+
+# Helper function to configure pkg-config files
+function(configure_pkg_config_file pkg_config_file_in)
+ set(prefix ${CMAKE_INSTALL_PREFIX})
+ set(exec_prefix ${CMAKE_INSTALL_FULL_BINDIR})
+ set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
+ set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+ set(VERSION ${PROJECT_VERSION})
+ string(REPLACE ".in" "" pkg_config_file ${pkg_config_file_in})
+ configure_file(${pkg_config_file_in} ${CMAKE_CURRENT_BINARY_DIR}/${pkg_config_file} @ONLY)
+endfunction()
+
+message(STATUS "Configuring ${PROJECT_NAME} ${PROJECT_VERSION}")
+
+# Configure config_type.h
+check_include_files(inttypes.h INCLUDE_INTTYPES_H)
+check_include_files(stdint.h INCLUDE_STDINT_H)
+check_include_files(sys/types.h INCLUDE_SYS_TYPES_H)
+
+set(SIZE16 int16_t)
+set(USIZE16 uint16_t)
+set(SIZE32 int32_t)
+set(USIZE32 uint32_t)
+set(SIZE64 int64_t)
+
+configure_file(include/ogg/config_types.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/ogg/config_types.h @ONLY)
+
+set(OGG_HEADERS
+ ${CMAKE_CURRENT_BINARY_DIR}/include/ogg/config_types.h
+ include/ogg/ogg.h
+ include/ogg/os_types.h
+)
+
+set(OGG_SOURCES
+ src/bitwise.c
+ src/framing.c
+)
+
+if(MSVC)
+ list(APPEND OGG_SOURCES win32/ogg.def)
+endif()
+
+if(BUILD_FRAMEWORK)
+ set(BUILD_SHARED_LIBS TRUE)
+endif()
+
+include_directories(include ${CMAKE_CURRENT_BINARY_DIR}/include)
+add_library(ogg ${OGG_HEADERS} ${OGG_SOURCES})
+target_include_directories(ogg PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
+add_library(Ogg::ogg ALIAS ogg)
+
+get_version_info(OGG_VERSION_INFO "LIB_CURRENT" "LIB_AGE" "LIB_REVISION")
+set_target_properties(
+ ogg PROPERTIES
+ SOVERSION ${OGG_VERSION_INFO}
+ PUBLIC_HEADER "${OGG_HEADERS}"
+)
+
+if(BUILD_FRAMEWORK)
+ set_target_properties(ogg PROPERTIES
+ FRAMEWORK TRUE
+ FRAMEWORK_VERSION ${PROJECT_VERSION}
+ MACOSX_FRAMEWORK_IDENTIFIER org.xiph.ogg
+ MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${PROJECT_VERSION}
+ MACOSX_FRAMEWORK_BUNDLE_VERSION ${PROJECT_VERSION}
+ XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+ OUTPUT_NAME Ogg
+ )
+endif()
+
+configure_pkg_config_file(ogg.pc.in)
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