Add compiler utils

CHANGELOG.md

@@ -17,8 +17,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * `semver_parse()`, `write_version_file` and `version_from_file()` utils, in `version.cmake`.
 * `git_find_version_tag()` util, in `git.cmake`.
 * `VERSION` file.
+* RSP's GCC strict compile options, in `gcc.cmake` (_exposed via `compiler.cmake` module_).
 * Caching utilities, `cache.cmake`.
-* A "mini" testing framework for cmake modules and scripts, in `testing.cmake`. 
+* A "mini" testing framework for cmake modules and scripts, in `testing.cmake`.
 * `RSP_CMAKE_SCRIPTS_BUILD_TESTS` project option for building tests.
 * `tests.yaml` and `deploy-docs.yaml` GitHub Actions workflows.
 * `composer.json` to install [Daux.io](https://daux.io) dev-dependency (_documentation generator_).

CMakeLists.txt

@@ -78,6 +78,6 @@ endif ()
 # Misc.
 # -------------------------------------------------------------------------------------------------------------- #
 
-# include("rsp/helpers")
+# include("rsp/debug")
 
 # dump(CMAKE_MODULE_PATH FOO BAR PROJECT_NAME)

cmake/rsp/compiler.cmake

@@ -0,0 +1,10 @@
+# -------------------------------------------------------------------------------------------------------------- #
+# Compiler utilities
+# -------------------------------------------------------------------------------------------------------------- #
+
+include_guard(GLOBAL)
+
+# Debug
+message(VERBOSE "rsp/compiler module included")
+
+include("rsp/compilers/gcc")

cmake/rsp/compilers/gcc.cmake

@@ -0,0 +1,194 @@
+# -------------------------------------------------------------------------------------------------------------- #
+# GCC compiler utilities
+# -------------------------------------------------------------------------------------------------------------- #
+
+include_guard(GLOBAL)
+
+# Debug
+message(VERBOSE "rsp/compilers/gcc module included")
+
+# GCC strict compile options
+#
+# @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Option-Index.html
+# @see https://gcc.gnu.org/onlinedocs/
+#
+if (NOT DEFINED RSP_GCC_STRICT_COMPILE_OPTIONS)
+    set(RSP_GCC_STRICT_COMPILE_OPTIONS
+
+        # Issue all the warnings demanded by strict ISO C and ISO C++.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-pedantic-1
+        #
+        -pedantic
+
+        # Enables all the warnings about constructions...
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wall
+        #
+        -Wall
+
+        # Enables some extra warning flags that are not enabled by -Wall.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wextra
+        #
+        -Wextra
+
+        # Warn if an old-style (C-style) cast to a non-void type is used within a C++ program.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wold-style-cast
+        #
+        -Wold-style-cast
+
+        # Warn whenever a pointer is cast such that the required alignment of the target is increased.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wcast-align
+        #
+        -Wcast-align
+
+        # Warn whenever a pointer is cast so as to remove a type qualifier from the target type.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wcast-qual
+        #
+        -Wcast-qual
+
+        # Warn when a class seems unusable because all the constructors or destructors in that class
+        # are private, and it has neither friends nor public static member functions.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wctor-dtor-privacy
+        #
+        -Wctor-dtor-privacy
+
+        # Warn if a requested optimization pass is disabled.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wdisabled-optimization
+        #
+        -Wdisabled-optimization
+
+        # Check calls to printf and scanf, etc., to make sure that the arguments supplied have types
+        # appropriate to the format string specified.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wformat
+        #
+        -Wformat=2
+
+        # Warn about uninitialized variables that are initialized with themselves.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Winit-self
+        #
+        -Winit-self
+
+        # Warn about suspicious uses of logical operators in expressions.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wlogical-op
+        #
+        -Wlogical-op
+
+        # Warn if a global function is defined without a previous declaration.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wmissing-declarations
+        #
+        -Wmissing-declarations
+
+        # Warn if a user-supplied include directory does not exist.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wmissing-include-dirs
+        #
+        -Wmissing-include-dirs
+
+        # Warn when a noexcept-expression evaluates to false because of a call to a function that
+        # does not have a non-throwing exception specification.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wnoexcept
+        #
+        -Wnoexcept
+
+        # Warn when a function declaration hides virtual functions from a base class.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Woverloaded-virtual
+        #
+        -Woverloaded-virtual
+
+        # Warn if anything is declared more than once in the same scope.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wredundant-decls
+        #
+        -Wredundant-decls
+
+        # Warn for implicit conversions that may change the sign of an integer value, like assigning
+        # a signed integer expression to an unsigned integer variable.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wsign-conversion
+        #
+        -Wsign-conversion
+
+        # Warn when a comparison between signed and unsigned values could produce an incorrect result
+        # when the signed value is converted to unsigned.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wsign-compare
+        #
+        #-Wsign-compare # (Enabled by -Wall)
+
+        # Warn when overload resolution chooses a promotion from unsigned or enumerated type to a
+        # signed type, over a conversion to an unsigned type of the same size.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wsign-promo
+        #
+        -Wsign-promo
+
+        # Warn about the use of an uncasted NULL as sentinel.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wstrict-null-sentinel
+        #
+        -Wstrict-null-sentinel
+
+        # Warns about cases where the compiler optimizes based on the assumption that signed overflow does not occur.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wstrict-overflow
+        #
+        -Wstrict-overflow=3 # (-Wall only includes Wstrict-overflow=1)
+
+        # Warn whenever a switch statement does not have a default case.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wswitch-default
+        #
+        -Wswitch-default
+
+        # Warn if an undefined identifier is evaluated in an #if directive.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wundef
+        #
+        -Wundef
+
+        # All the -Wunused options combined.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Wno-unused
+        #
+        -Wno-unused
+
+        # Warn about violations of the style guidelines from Scott Meyers’ Effective C++ series
+        # of books.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Weffc_002b_002b
+        #
+        -Weffc++
+
+        # Make all warnings into errors.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Warning-Options.html#index-Werror
+        #
+        -Werror
+
+        # Print (on standard error output) the commands executed to run the stages of compilation.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Overall-Options.html#index-v
+        #
+        #-v
+
+        # Dump all macro definitions, at the end of preprocessing, in addition to normal output.
+        #
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Preprocessor-Options.html#index-dD
+        # @see https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Developer-Options.html#index-dD-1
+        #
+        #-dD
+    )
+endif ()

docs/+current/modules/compiler/gcc.md

@@ -0,0 +1,39 @@
+---
+title: GCC
+description: How to use the compiler module.
+keywords: gcc, compiler, cmake
+author: RSP Systems A/S
+---
+
+# GCC
+
+Helpers and utilities that are specific for [GNU Compiler Collection (GCC)](https://gcc.gnu.org/).
+
+[TOC]
+
+## Compile Option Presets
+
+### Strict
+
+Use `RSP_GCC_STRICT_COMPILE_OPTIONS` preset when you wish to enable strict compile options.
+
+```cmake
+include("rsp/compiler")
+
+add_compile_options(${RSP_GCC_STRICT_COMPILE_OPTIONS})
+```
+
+For additional information, please review the `RSP_GCC_STRICT_COMPILE_OPTIONS` list, in the source code.
+
+### Customize
+
+If you need to customise a preset, create a copy of the desired preset, and use cmake's
+[list](https://cmake.org/cmake/help/latest/command/list.html#list) operations to remove or append options.
+
+```cmake
+# Copy provided preset into new variable
+set(my_compile_options "${RSP_GCC_STRICT_COMPILE_OPTIONS}")
+
+# Modify your preset...
+list(REMOVE_ITEM my_compile_options "-Wswitch-default")
+```

docs/+current/modules/compiler/index.md

@@ -0,0 +1,16 @@
+---
+title: Compiler
+description: How to use the compiler module.
+keywords: compiler, cmake
+author: RSP Systems A/S
+---
+
+# Compiler
+
+Module that contains compiler specific helpers and utilities.
+
+## How to include
+
+```cmake
+include("rsp/compiler")
+```