2020-01-13 10:24:35 +00:00
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include (CheckCXXCompilerFlag)
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2020-02-16 08:04:03 +00:00
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include (CheckCCompilerFlag)
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2020-01-10 10:25:14 +00:00
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# Try to add -Wflag if compiler supports it
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macro (add_warning flag)
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string (REPLACE "-" "_" underscored_flag ${flag})
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string (REPLACE "+" "x" underscored_flag ${underscored_flag})
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2020-02-16 08:04:03 +00:00
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check_cxx_compiler_flag("-W${flag}" SUPPORTS_CXXFLAG_${underscored_flag})
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check_c_compiler_flag("-W${flag}" SUPPORTS_CFLAG_${underscored_flag})
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if (SUPPORTS_CXXFLAG_${underscored_flag})
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2020-01-10 10:25:14 +00:00
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set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -W${flag}")
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else ()
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message (WARNING "Flag -W${flag} is unsupported")
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endif ()
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2020-02-16 08:04:03 +00:00
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if (SUPPORTS_CFLAG_${underscored_flag})
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set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W${flag}")
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else ()
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message (WARNING "Flag -W${flag} is unsupported")
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endif ()
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2020-01-10 16:36:36 +00:00
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endmacro ()
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2020-01-10 10:25:14 +00:00
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# Try to add -Wno flag if compiler supports it
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macro (no_warning flag)
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add_warning(no-${flag})
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2020-01-10 16:36:36 +00:00
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endmacro ()
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2021-08-16 00:16:45 +00:00
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# The same but only for specified target.
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macro (target_add_warning target flag)
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string (REPLACE "-" "_" underscored_flag ${flag})
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string (REPLACE "+" "x" underscored_flag ${underscored_flag})
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check_cxx_compiler_flag("-W${flag}" SUPPORTS_CXXFLAG_${underscored_flag})
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if (SUPPORTS_CXXFLAG_${underscored_flag})
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target_compile_options (${target} PRIVATE "-W${flag}")
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else ()
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message (WARNING "Flag -W${flag} is unsupported")
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endif ()
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endmacro ()
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macro (target_no_warning target flag)
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target_add_warning(${target} no-${flag})
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endmacro ()
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