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Add GCC strict compile options
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‎cmake/rsp/compilers/gcc.cmake‎

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# -------------------------------------------------------------------------------------------------------------- #
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# GCC compiler utilities
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# -------------------------------------------------------------------------------------------------------------- #
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include_guard(GLOBAL)
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# Debug
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message(VERBOSE "rsp/compilers/gcc module included")
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# GCC strict compile options
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Option-Index.html
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# @see https://gcc.gnu.org/onlinedocs/
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#
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if (NOT DEFINED RSP_GCC_STRICT_COMPILE_OPTIONS)
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set(RSP_GCC_STRICT_COMPILE_OPTIONS
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# Issue all the warnings demanded by strict ISO C and ISO C++.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-pedantic-1
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#
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-pedantic
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# Enables all the warnings about constructions...
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wall
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#
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-Wall
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# Enables some extra warning flags that are not enabled by -Wall.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wextra
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#
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-Wextra
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# Warn if an old-style (C-style) cast to a non-void type is used within a C++ program.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wold-style-cast
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#
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-Wold-style-cast
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# Warn whenever a pointer is cast such that the required alignment of the target is increased.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wcast-align
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#
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-Wcast-align
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# Warn whenever a pointer is cast so as to remove a type qualifier from the target type.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wcast-qual
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#
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-Wcast-qual
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# Warn when a class seems unusable because all the constructors or destructors in that class
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# are private, and it has neither friends nor public static member functions.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wctor-dtor-privacy
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#
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-Wctor-dtor-privacy
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# Warn if a requested optimization pass is disabled.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wdisabled-optimization
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#
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-Wdisabled-optimization
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# Check calls to printf and scanf, etc., to make sure that the arguments supplied have types
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# appropriate to the format string specified.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wformat
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#
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-Wformat=2
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# Warn about uninitialized variables that are initialized with themselves.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Winit-self
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#
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-Winit-self
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# Warn about suspicious uses of logical operators in expressions.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wlogical-op
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#
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-Wlogical-op
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# Warn if a global function is defined without a previous declaration.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wmissing-declarations
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#
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-Wmissing-declarations
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# Warn if a user-supplied include directory does not exist.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wmissing-include-dirs
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#
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-Wmissing-include-dirs
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# Warn when a noexcept-expression evaluates to false because of a call to a function that
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# does not have a non-throwing exception specification.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wnoexcept
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#
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-Wnoexcept
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# Warn when a function declaration hides virtual functions from a base class.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Woverloaded-virtual
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#
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-Woverloaded-virtual
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# Warn if anything is declared more than once in the same scope.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wredundant-decls
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#
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-Wredundant-decls
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# Warn for implicit conversions that may change the sign of an integer value, like assigning
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# a signed integer expression to an unsigned integer variable.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wsign-conversion
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#
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-Wsign-conversion
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# Warn when a comparison between signed and unsigned values could produce an incorrect result
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# when the signed value is converted to unsigned.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wsign-compare
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#
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#-Wsign-compare # (Enabled by -Wall)
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# Warn when overload resolution chooses a promotion from unsigned or enumerated type to a
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# signed type, over a conversion to an unsigned type of the same size.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wsign-promo
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#
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-Wsign-promo
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# Warn about the use of an uncasted NULL as sentinel.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wstrict-null-sentinel
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#
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-Wstrict-null-sentinel
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# Warns about cases where the compiler optimizes based on the assumption that signed overflow does not occur.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wstrict-overflow
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#
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-Wstrict-overflow=3 # (-Wall only includes Wstrict-overflow=1)
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# Warn whenever a switch statement does not have a default case.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wswitch-default
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#
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-Wswitch-default
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# Warn if an undefined identifier is evaluated in an #if directive.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wundef
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#
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-Wundef
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# All the -Wunused options combined.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wno-unused
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#
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-Wno-unused
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# Warn about violations of the style guidelines from Scott Meyers’ Effective C++ series
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# of books.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Weffc_002b_002b
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#
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-Weffc++
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# Make all warnings into errors.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Werror
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#
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-Werror
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# Print (on standard error output) the commands executed to run the stages of compilation.
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Overall-Options.html#index-v
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#
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#-v
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# TODO: Not sure what this is...
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#
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Preprocessor-Options.html#index-dD
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#
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# Or is it this one...?
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# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Developer-Options.html#index-dD-1
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#
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#-dD
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)
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endif ()

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