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# - Turn on warnings when compiling
include (AddOptions)
include (UseCompVer)
is_compiler_gcc_compatible ()
if (CXX_COMPAT_GCC)
# default warnings flags, if not set by user
set_default_option (CXX _warn_flag "-Wall -Wextra -Wshadow" "(^|\ )-W")
if (_warn_flag)
message (STATUS "All warnings enabled: ${_warn_flag}")
add_options (ALL_LANGUAGES ALL_BUILDS "${_warn_flag}")
endif (_warn_flag)
endif ()
option(SILENCE_EXTERNAL_WARNINGS "Disable some warnings from external packages (requires GCC 4.6 or newer)" OFF)
if(SILENCE_EXTERNAL_WARNINGS AND CXX_COMPAT_GCC)
add_definitions(-DSILENCE_EXTERNAL_WARNINGS)
endif()
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