Bunch of CMake fixes

* Add more Git ignore patterns
* Fix Ogg dependency handling (closes #203)
* Remove unneeded compiler flag (closes #204)
* Fix Visual Studio DLL build error error C2491:
  'flac_internal_rename_utf8': definition of dllimport function not
  allowed (closes #205)
* Add alias targets
* Reduce number of CMake files
* Improve CMake intrinsics detection

.gitignore

@@ -77,3 +77,18 @@ test/picture.log
 microbench/benchmark_residual
 oss-fuzz/fuzz-decoder
 oss-fuzz/fuzz-encoder
+
+/*[Bb]uild*/
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+/.vs*/

CMakeLists.txt

@@ -23,7 +23,7 @@ option(INSTALL_CMAKE_CONFIG_MODULE "Install CMake package-config module" ON)
 option(WITH_OGG "ogg support (default: test for libogg)" ON)
 
 if(WITH_OGG)
-    find_package(OGG REQUIRED)
+    find_package(Ogg REQUIRED)
 endif()
 
 find_package(Iconv)
@@ -36,9 +36,6 @@ endif()
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wcast-align -Wshadow -Wwrite-strings -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder -Wsign-promo -Wundef")
 endif()
-if(CMAKE_C_COMPILER_ID MATCHES "GNU")
-    set(CMAKE_EXE_LINKER_FLAGS -no-pie)
-endif()
 
 include(CMakePackageConfigHelpers)
 include(CPack)
@@ -57,7 +54,11 @@ include(TestBigEndian)
 check_include_file("byteswap.h" HAVE_BYTESWAP_H)
 check_include_file("inttypes.h" HAVE_INTTYPES_H)
 check_include_file("stdint.h" HAVE_STDINT_H)
+if(MSVC)
+    check_include_file("intrin.h" FLAC__HAS_X86INTRIN)
+else()
     check_include_file("x86intrin.h" FLAC__HAS_X86INTRIN)
+endif()
 
 check_function_exists(fseeko HAVE_FSEEKO)
 
@@ -140,7 +141,6 @@ if(INSTALL_CMAKE_CONFIG_MODULE)
         FILES
             "${CMAKE_CURRENT_BINARY_DIR}/flac-config.cmake"
             "${CMAKE_CURRENT_BINARY_DIR}/flac-config-version.cmake"
-            "cmake/FindOGG.cmake"
         DESTINATION "${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}/cmake")
 endif()
 

Makefile.am

@@ -41,7 +41,7 @@ EXTRA_DIST = \
 	CMakeLists.txt \
 	config.cmake.h.in \
 	flac-config.cmake.in \
-	cmake/FindOGG.cmake \
+	cmake/FindOgg.cmake \
 	cmake/UseSystemExtensions.cmake \
 	COPYING.FDL \
 	COPYING.GPL \

cmake/FindOgg.cmake

@@ -14,7 +14,7 @@ mark_as_advanced(
     OGG_LIBRARY)
 
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(OGG
+find_package_handle_standard_args(Ogg
     REQUIRED_VARS OGG_INCLUDE_DIR OGG_LIBRARY
     VERSION_VAR _OGG_VERSION)
 

doc/CMakeLists.txt

@@ -19,7 +19,28 @@ doxygen_add_docs(FLAC-doxygen
     "${PROJECT_SOURCE_DIR}/include/FLAC"
     "${PROJECT_SOURCE_DIR}/include/FLAC++")
 
-add_subdirectory(html)
-
 install(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/html/"
     DESTINATION "${CMAKE_INSTALL_DOCDIR}/html/api")
+
+install(FILES
+    html/images/logo.svg
+    html/images/logo130.gif
+    html/changelog.html
+    html/developers.html
+    html/documentation.html
+    html/documentation_bugs.html
+    html/documentation_example_code.html
+    html/documentation_format_overview.html
+    html/documentation_tools.html
+    html/documentation_tools_flac.html
+    html/documentation_tools_metaflac.html
+    html/faq.html
+    html/favicon.ico
+    html/features.html
+    html/flac.css
+    html/format.html
+    html/id.html
+    html/index.html
+    html/license.html
+    html/ogg_mapping.html
+DESTINATION "${CMAKE_INSTALL_DOCDIR}/html")

doc/html/CMakeLists.txt

@@ -1,22 +0,0 @@
-add_subdirectory(images)
-
-install(FILES
-    changelog.html
-    developers.html
-    documentation.html
-    documentation_bugs.html
-    documentation_example_code.html
-    documentation_format_overview.html
-    documentation_tools.html
-    documentation_tools_flac.html
-    documentation_tools_metaflac.html
-    faq.html
-    favicon.ico
-    features.html
-    flac.css
-    format.html
-    id.html
-    index.html
-    license.html
-    ogg_mapping.html
-DESTINATION "${CMAKE_INSTALL_DOCDIR}/html")

doc/html/Makefile.am

@@ -38,7 +38,7 @@ html_DATA = \
 	license.html \
 	ogg_mapping.html
 
-EXTRA_DIST = $(html_DATA) api CMakeLists.txt
+EXTRA_DIST = $(html_DATA) api
 
 if FLaC__HAS_DOXYGEN
 # The install targets don't copy whole directories so we have to

doc/html/images/CMakeLists.txt

@@ -1,4 +0,0 @@
-install(FILES
-    logo.svg
-    logo130.gif
-DESTINATION "${CMAKE_INSTALL_DOCDIR}/html/images")

doc/html/images/Makefile.am

@@ -22,4 +22,4 @@ logos_DATA = \
 	logo.svg \
 	logo130.gif
 
-EXTRA_DIST = $(logos_DATA) CMakeLists.txt
+EXTRA_DIST = $(logos_DATA)

examples/CMakeLists.txt

@@ -1,4 +1,7 @@
-add_subdirectory("c")
+add_subdirectory("c/decode/file")
+add_subdirectory("c/encode/file")
+
 if(BUILD_CXXLIBS)
-    add_subdirectory("cpp")
+    add_subdirectory("cpp/decode/file")
+    add_subdirectory("cpp/encode/file")
 endif()

examples/c/CMakeLists.txt

@@ -1,2 +0,0 @@
-add_subdirectory("decode/file")
-add_subdirectory("encode/file")

examples/c/Makefile.am

@@ -17,5 +17,3 @@
 #  distribution.
 
 SUBDIRS = decode encode
-
-EXTRA_DIST = CMakeLists.txt

examples/cpp/CMakeLists.txt

@@ -1,2 +0,0 @@
-add_subdirectory("decode/file")
-add_subdirectory("encode/file")

examples/cpp/Makefile.am

@@ -17,5 +17,3 @@
 #  distribution.
 
 SUBDIRS = decode encode
-
-EXTRA_DIST = CMakeLists.txt

flac-config.cmake.in

@@ -1,10 +1,7 @@
 @PACKAGE_INIT@
 
-if(@OGG_FOUND@)
-    list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
 include(CMakeFindDependencyMacro)
-    find_dependency(OGG)
+find_dependency(Ogg)
-endif()
 
 include("${CMAKE_CURRENT_LIST_DIR}/targets.cmake")
 

src/CMakeLists.txt

@@ -7,12 +7,22 @@ add_subdirectory("libFLAC")
 if(BUILD_CXXLIBS)
     add_subdirectory("libFLAC++")
 endif()
-add_subdirectory("share")
+add_subdirectory("share/replaygain_analysis")
+add_subdirectory("share/replaygain_synthesis")
+add_subdirectory("share/getopt")
+add_subdirectory("share/utf8")
+add_subdirectory("share/grabbag")
+
 if(BUILD_PROGRAMS)
     add_subdirectory("flac")
     add_subdirectory("metaflac")
 endif()
-add_subdirectory("utils")
+if(BUILD_CXXLIBS)
+    add_subdirectory(utils/flacdiff)
+    if(WIN32)
+        add_subdirectory(utils/flactimer)
+    endif()
+endif()
 
 if(WITH_XMMS)
     add_subdirectory("plugin_common")

src/flac/CMakeLists.txt

@@ -9,16 +9,15 @@ add_executable(flacapp
     main.c
     local_string_utils.c
     utils.c
-    vorbiscomment.c)
+    vorbiscomment.c
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>)
 set_property(TARGET flacapp PROPERTY RUNTIME_OUTPUT_NAME flac)
 target_link_libraries(flacapp
     FLAC
     getopt
     replaygain_synthesis
     utf8)
-if(TARGET win_utf8_io)
-    target_link_libraries(flacapp win_utf8_io)
-endif()
 
 install(TARGETS flacapp EXPORT targets
     RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")

src/libFLAC++/CMakeLists.txt

@@ -35,6 +35,8 @@ if(BUILD_SHARED_LIBS)
     endif()
 endif()
 
+add_library(FLAC::FLAC++ ALIAS FLAC++)
+
 install(TARGETS FLAC++ EXPORT targets
     ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}/"
     LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}/"

src/libFLAC/CMakeLists.txt

@@ -75,6 +75,8 @@ add_library(FLAC
     stream_encoder_intrin_avx2.c
     stream_encoder_framing.c
     window.c
+    $<$<BOOL:${WIN32}>:../../include/share/windows_unicode_filenames.h>
+    $<$<BOOL:${WIN32}>:windows_unicode_filenames.c>
     $<$<BOOL:${OGG_FOUND}>:ogg_decoder_aspect.c>
     $<$<BOOL:${OGG_FOUND}>:ogg_encoder_aspect.c>
     $<$<BOOL:${OGG_FOUND}>:ogg_helper.c>
@@ -82,9 +84,6 @@ add_library(FLAC
 if(TARGET FLAC-asm)
     target_sources(FLAC PRIVATE $<TARGET_OBJECTS:FLAC-asm>)
 endif()
-if(WIN32)
-    target_sources(FLAC PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/windows_unicode_filenames.c>)
-endif()
 
 target_compile_definitions(FLAC
     PRIVATE $<$<BOOL:${BUILD_SHARED_LIBS}>:FLAC_API_EXPORTS>
@@ -108,6 +107,8 @@ if(BUILD_SHARED_LIBS)
     endif()
 endif()
 
+add_library(FLAC::FLAC ALIAS FLAC)
+
 
 install(TARGETS FLAC EXPORT targets
     ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}/"

src/metaflac/CMakeLists.txt

@@ -8,11 +8,10 @@ add_executable(metaflac
     operations_shorthand_vorbiscomment.c
     options.c
     usage.c
-    utils.c)
+    utils.c
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>)
 target_link_libraries(metaflac FLAC getopt utf8)
-if(TARGET win_utf8_io)
-    target_link_libraries(metaflac win_utf8_io)
-endif()
 
 install(TARGETS metaflac EXPORT targets
     RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")

src/share/CMakeLists.txt

@@ -1,8 +0,0 @@
-add_subdirectory("replaygain_analysis")
-add_subdirectory("replaygain_synthesis")
-add_subdirectory("getopt")
-add_subdirectory("utf8")
-if(WIN32)
-    add_subdirectory("win_utf8_io")
-endif()
-add_subdirectory("grabbag")

src/share/Makefile.am

@@ -21,7 +21,6 @@ AUTOMAKE_OPTIONS = subdir-objects
 AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
 
 EXTRA_DIST = \
-	CMakeLists.txt \
 	Makefile.lite \
 	README \
 	getopt/CMakeLists.txt \
@@ -52,7 +51,6 @@ EXTRA_DIST = \
 	utf8/utf8_static.vcproj \
 	utf8/utf8_static.vcxproj \
 	utf8/utf8_static.vcxproj.filters \
-	win_utf8_io/CMakeLists.txt \
 	win_utf8_io/Makefile.lite \
 	win_utf8_io/win_utf8_io_static.vcproj \
 	win_utf8_io/win_utf8_io_static.vcxproj \

src/share/win_utf8_io/CMakeLists.txt

@@ -1 +0,0 @@
-add_library(win_utf8_io STATIC win_utf8_io.c)

src/test_grabbag/cuesheet/CMakeLists.txt

@@ -1,2 +1,5 @@
-add_executable(test_cuesheet main.c)
+add_executable(test_cuesheet
+    main.c
+    $<$<BOOL:${WIN32}>:../../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../../share/win_utf8_io/win_utf8_io.c>)
 target_link_libraries(test_cuesheet FLAC grabbag)

src/test_grabbag/picture/CMakeLists.txt

@@ -1,2 +1,5 @@
-add_executable(test_picture main.c)
+add_executable(test_picture
+    main.c
+    $<$<BOOL:${WIN32}>:../../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../../share/win_utf8_io/win_utf8_io.c>)
 target_link_libraries(test_picture FLAC grabbag)

src/test_libFLAC++/CMakeLists.txt

@@ -4,5 +4,7 @@ add_executable(test_libFLAC++
     main.cpp
     metadata.cpp
     metadata_manip.cpp
-    metadata_object.cpp)
+    metadata_object.cpp
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>)
 target_link_libraries(test_libFLAC++ FLAC++ test_libs_common grabbag)

src/test_libFLAC/CMakeLists.txt

@@ -14,7 +14,9 @@ add_executable(test_libFLAC
     "$<TARGET_PROPERTY:FLAC,SOURCE_DIR>/bitreader.c"
     "$<TARGET_PROPERTY:FLAC,SOURCE_DIR>/bitwriter.c"
     "$<TARGET_PROPERTY:FLAC,SOURCE_DIR>/crc.c"
-    "$<TARGET_PROPERTY:FLAC,SOURCE_DIR>/md5.c")
+    "$<TARGET_PROPERTY:FLAC,SOURCE_DIR>/md5.c"
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>)
 
 target_compile_definitions(test_libFLAC PRIVATE
     $<$<BOOL:${ENABLE_64_BIT_WORDS}>:ENABLE_64_BIT_WORDS>)

src/test_seeking/CMakeLists.txt

@@ -1,2 +1,5 @@
-add_executable(test_seeking main.c)
+add_executable(test_seeking
+    main.c
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>)
 target_link_libraries(test_seeking FLAC)

src/utils/CMakeLists.txt

@@ -1,6 +0,0 @@
-if(BUILD_CXXLIBS)
-    add_subdirectory(flacdiff)
-    if(WIN32)
-        add_subdirectory(flactimer)
-    endif()
-endif()

src/utils/Makefile.am

@@ -17,5 +17,3 @@
 #  distribution.
 
 SUBDIRS = flacdiff flactimer
-
-EXTRA_DIST = CMakeLists.txt

src/utils/flacdiff/CMakeLists.txt

@@ -1,5 +1,5 @@
-add_executable(flacdiff main.cpp)
+add_executable(flacdiff
+    main.cpp
+    $<$<BOOL:${WIN32}>:../../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../../share/win_utf8_io/win_utf8_io.c>)
 target_link_libraries(flacdiff FLAC++)
-if(TARGET win_utf8_io)
-    target_link_libraries(flacdiff win_utf8_io)
-endif()