cmake: avoid security warnings under msvc
fopen, sscanf are error checked and only used in the examples. this
matches Makefile.vc.
@@ -103,7 +103,10 @@ endforeach()
### Define the mandatory libraries.
# Build the webpdecoder library.
-if(NOT MSVC)
+if(MSVC)
+ # avoid security warnings for e.g., fopen() used in the examples.
+ add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+else()
add_definitions(-Wall)
endif()
include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${WEBP_DEP_INCLUDE_DIRS})
