Silence some CMake build MSVC useless warnings

Supress warnings about unsafe and deprecated functions like this: strcat is unsafe, use `strcat_s` instead and so on.

Signed-off-by: Ralph Giles <giles@thaumas.net>

diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 7e8ca45..7cd68e5 100644 (file)
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -67,6 +67,12 @@ if(WIN32)
     list(APPEND VORBISFILE_SOURCES ../win32/vorbisfile.def)
 endif()
 
+if(MSVC)
+    add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
+    add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
+endif()
+
 if (NOT BUILD_FRAMEWORK)
     add_library(vorbis ${VORBIS_HEADERS} ${VORBIS_SOURCES})
     add_library(vorbisenc ${VORBISENC_SOURCES})