kopia lustrzana https://github.com/stlink-org/stlink
52 wiersze
1.6 KiB
CMake
52 wiersze
1.6 KiB
CMake
# c_flags.cmake
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# Configure C compiler flags
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include(CheckCCompilerFlag)
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function(add_cflag_if_supported flag)
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string(REPLACE "-" "_" flagclean ${flag})
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string(REPLACE "=" "_" flagclean ${flagclean})
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string(REPLACE "+" "_" flagclean ${flagclean})
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string(REPLACE "," "_" flagclean ${flagclean})
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string(TOUPPER ${flagclean} flagclean)
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check_c_compiler_flag(${flag} C_SUPPORTS${flagclean})
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if (C_SUPPORTS${flagclean})
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}" PARENT_SCOPE)
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endif()
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endfunction()
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add_cflag_if_supported("-Wall")
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add_cflag_if_supported("-Wextra")
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add_cflag_if_supported("-Wshadow")
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add_cflag_if_supported("-O")
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add_cflag_if_supported("-D_FORTIFY_SOURCE=2")
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add_cflag_if_supported("-fstrict-aliasing")
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add_cflag_if_supported("-Wundef")
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add_cflag_if_supported("-Wformat")
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add_cflag_if_supported("-Wformat-security")
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add_cflag_if_supported("-Wmaybe-uninitialized")
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add_cflag_if_supported("-Wmissing-variable-declarations")
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add_cflag_if_supported("-Wshorten-64-to-32")
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add_cflag_if_supported("-Wimplicit-function-declaration")
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##
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# On OpenBSD the system headers suck so we need to disable redundant declaration check
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# /usr/include/unistd.h:429: warning: redundant redeclaration of 'truncate'
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# /usr/include/sys/types.h:218: warning: previous declaration of 'truncate' was here
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##
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if (NOT CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
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add_cflag_if_supported("-Wredundant-decls")
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endif()
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if (NOT (WIN32 OR (EXISTS "/etc/debian_version" AND MINGW)))
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add_cflag_if_supported("-fPIC")
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endif()
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if (${CMAKE_BUILD_TYPE} MATCHES "Debug")
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add_cflag_if_supported("-ggdb")
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else ()
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add_cflag_if_supported("-Werror")
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endif()
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