[CMake] Add options for better MS Visual Studio building

CMakeLists.txt

@@ -15,6 +15,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 option(BUILD_CXXLIBS "Build libFLAC++" ON)
 option(BUILD_PROGRAMS "Build and install programs" ON)
 option(BUILD_EXAMPLES "Build and install examples" ON)
+option(BUILD_TESTING "Build tests" ON)
 option(BUILD_DOCS "Build and install doxygen documents" ON)
 option(WITH_STACK_PROTECTOR "Enable GNU GCC stack smash protection" ON)
 option(INSTALL_MANPAGES "Install MAN pages" ON)
@@ -39,10 +40,11 @@ endif()
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wcast-align -Wshadow -Wwrite-strings -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder -Wsign-promo -Wundef")
 endif()
+if(MSVC)
+	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /O2 /Ob2 /Oi /Ot /Oy /MT")
+endif()
 
 include(CMakePackageConfigHelpers)
-include(CPack)
-include(CTest)
 include(CheckCCompilerFlag)
 include(CheckCXXCompilerFlag)
 include(CheckSymbolExists)
@@ -53,6 +55,7 @@ include(CheckCXXSourceCompiles)
 include(GNUInstallDirs)
 include(UseSystemExtensions)
 include(TestBigEndian)
+enable_testing()
 
 check_include_file("byteswap.h" HAVE_BYTESWAP_H)
 check_include_file("inttypes.h" HAVE_INTTYPES_H)

cmake/FindOgg.cmake

@@ -1,13 +1,17 @@
 find_package(PkgConfig)
 pkg_check_modules(_OGG QUIET ogg)
 
+file(GLOB _OGG_DIR ../libogg-*)
+
 find_path(OGG_INCLUDE_DIR
     NAMES "ogg/ogg.h"
-    PATHS ${_OGG_INCLUDE_DIRS})
+    PATHS ${_OGG_INCLUDE_DIRS}
+	HINTS "${_OGG_DIR}/include")
 
 find_library(OGG_LIBRARY
     NAMES ogg libogg
-    HINTS ${_OGG_LIBRARY_DIRS})
+    HINTS ${_OGG_LIBRARY_DIRS}
+    HINTS "${_OGG_DIR}/Release")
 
 mark_as_advanced(
     OGG_INCLUDE_DIR