Add libflac (#212)

* Add libflac

* libflac: Try to fix libogg linking

* Disable microbench building

* Fix replacement

* libflac: Fix MinGW

* Try something else for mingw

* libflac: Try something else

Based on https://github.com/msys2/MINGW-packages/issues/5803

* libflac: Try something else

* libflac: Try to set ldflags for mingw

* libflac: Try to set LDFLAGS

* Fix lua error

* libflac: Disable stack protector on MinGW

* That's it, I'm going to hell

* fix libflac for mingw/shared

Co-authored-by: Jérôme Leclercq <lynix680@gmail.com>

packages/l/libflac/patches/1.3.3/cmake.patch

@@ -0,0 +1,67 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c2d2dfc7..09428ddb 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -9,7 +9,10 @@ project(FLAC VERSION 1.3.2) # HOMEPAGE_URL "https://www.xiph.org/flac/")
+ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+ 
+ option(BUILD_CXXLIBS "Build libFLAC++" ON)
++option(BUILD_PROGRAMS "Build and install programs" ON)
+ option(BUILD_EXAMPLES "Build and install examples" ON)
++option(BUILD_DOCS "Build and install doxygen documents" ON)
++option(BUILD_UTILS "Build utils" OFF)
+ option(WITH_OGG "ogg support (default: test for libogg)" ON)
+ 
+ if(WITH_OGG)
+@@ -84,6 +87,10 @@ include_directories("include")
+ include_directories("${CMAKE_CURRENT_BINARY_DIR}")
+ add_definitions(-DHAVE_CONFIG_H)
+ 
++if(WIN32 AND NOT BUILD_SHARED_LIBS)
++    add_definitions(-DFLAC__NO_DLL)
++endif()
++
+ if(MSVC)
+     add_definitions(
+         -D_CRT_SECURE_NO_WARNINGS
+@@ -93,13 +100,15 @@ if(CMAKE_BUILD_TYPE STREQUAL Debug OR CMAKE_BUILD_TYPE STREQUAL RelWithDebInfo)
+     add_definitions(-DFLAC__OVERFLOW_DETECT)
+ endif()
+ 
+-add_subdirectory("doc")
+ add_subdirectory("src")
+-add_subdirectory("microbench")
++if(BUILD_DOCS)
++    add_subdirectory("doc")
++endif()
+ if(BUILD_EXAMPLES)
+     add_subdirectory("examples")
+ endif()
+ if(BUILD_TESTING)
++    add_subdirectory("microbench")
+     add_subdirectory("test")
+ endif()
+ 
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index ba7a439e..5bb020f1 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -9,10 +9,14 @@ add_subdirectory("libFLAC")
+ if(BUILD_CXXLIBS)
+     add_subdirectory("libFLAC++")
+ endif()
+-add_subdirectory("share")
+-add_subdirectory("flac")
+-add_subdirectory("metaflac")
+-add_subdirectory("utils")
++if(BUILD_PROGRAMS)
++    add_subdirectory("flac")
++    add_subdirectory("metaflac")
++endif()
++if(BUILD_UTILS)
++    add_subdirectory("share")
++    add_subdirectory("utils")
++endif()
+ 
+ if(WITH_XMMS)
+     add_subdirectory("plugin_common")

packages/l/libflac/xmake.lua

@@ -0,0 +1,60 @@
+package("libflac")
+
+    set_homepage("https://xiph.org/flac")
+    set_description("Free Lossless Audio Codec")
+    set_license("BSD")
+
+    set_urls("https://github.com/xiph/flac/archive/$(version).tar.gz",
+             "https://github.com/xiph/flac.git")
+
+    add_versions("1.3.3", "668cdeab898a7dd43cf84739f7e1f3ed6b35ece2ef9968a5c7079fe9adfe1689")
+    add_patches("1.3.3", path.join(os.scriptdir(), "patches", "1.3.3", "cmake.patch"), "49baa40ab70d63e74cfc3f0cc2f13824545a618ceaeffdd51d3333d90b37fd32")
+
+    add_deps("cmake", "libogg")
+
+    if is_plat("linux") then
+        add_syslinks("m")
+    end
+
+    on_load("windows", "mingw", function (package)
+        if not package:config("shared") then
+            package:add("defines", "FLAC__NO_DLL")
+        end
+    end)
+
+    on_install("windows", "linux", "macosx", "iphoneos", "mingw", "android", function (package)
+
+        local configs = {}
+        table.insert(configs, "-DBUILD_CXXLIBS=OFF")
+        table.insert(configs, "-DBUILD_DOCS=OFF")
+        table.insert(configs, "-DBUILD_PROGRAMS=OFF")
+        table.insert(configs, "-DBUILD_EXAMPLES=OFF")
+        table.insert(configs, "-DBUILD_TESTING=OFF")
+        table.insert(configs, "-DBUILD_UTILS=OFF")
+        table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:debug() and "Debug" or "Release"))
+        table.insert(configs, "-DBUILD_SHARED_LIBS=" .. (package:config("shared") and "ON" or "OFF"))
+        table.insert(configs, "-DCMAKE_POSITION_INDEPENDENT_CODE=ON")
+
+        -- fix, undefined reference to `__memset_chk'
+        -- @see https://github.com/msys2/MINGW-packages/issues/5803
+        if package:config("shared") and package:is_plat("mingw") then
+            io.replace("CMakeLists.txt", "add_definitions(-DHAVE_CONFIG_H)", "add_definitions(-DHAVE_CONFIG_H -D_FORTIFY_SOURCE=0)", {plain = true})
+	    end
+
+        -- we pass libogg as packagedeps instead of findOgg.cmake (it does not work)
+        local libogg = package:dep("libogg"):fetch()
+        if libogg then
+            local links = table.concat(table.wrap(libogg.links), " ")
+            io.replace("CMakeLists.txt", "find_package(OGG REQUIRED)", "", {plain = true})
+            io.replace("src/libFLAC/CMakeLists.txt",
+            [[
+if(TARGET Ogg::ogg)
+    target_link_libraries(FLAC PUBLIC Ogg::ogg)
+endif()]], "target_link_libraries(FLAC PUBLIC " .. links .. ")", {plain = true})
+        end
+        import("package.tools.cmake").install(package, configs, {packagedeps = "libogg"})
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("FLAC__format_sample_rate_is_valid", {includes = "FLAC/format.h"}))
+    end)