[Buildsystem] Add `EnumVariable(ignorecase=2)`

SConstruct

@@ -159,27 +159,38 @@ opts = Variables(customs, ARGUMENTS)
 
 # Target build options
 opts.Add((["platform", "p"], "Target platform (%s)" % "|".join(platform_list), ""))
-opts.Add(EnumVariable("target", "Compilation target", "editor", ("editor", "template_release", "template_debug")))
-opts.Add(EnumVariable("arch", "CPU architecture", "auto", ["auto"] + architectures, architecture_aliases))
+opts.Add(
+    EnumVariable(
+        "target", "Compilation target", "editor", ["editor", "template_release", "template_debug"], ignorecase=2
+    )
+)
+opts.Add(EnumVariable("arch", "CPU architecture", "auto", ["auto"] + architectures, architecture_aliases, ignorecase=2))
 opts.Add(BoolVariable("dev_build", "Developer build with dev-only debugging code (DEV_ENABLED)", False))
 opts.Add(
     EnumVariable(
         "optimize",
         "Optimization level (by default inferred from 'target' and 'dev_build')",
         "auto",
-        ("auto", "none", "custom", "debug", "speed", "speed_trace", "size", "size_extra"),
+        ["auto", "none", "custom", "debug", "speed", "speed_trace", "size", "size_extra"],
+        ignorecase=2,
     )
 )
 opts.Add(BoolVariable("debug_symbols", "Build with debugging symbols", False))
 opts.Add(BoolVariable("separate_debug_symbols", "Extract debugging symbols to a separate file", False))
 opts.Add(BoolVariable("debug_paths_relative", "Make file paths in debug symbols relative (if supported)", False))
-opts.Add(EnumVariable("lto", "Link-time optimization (production builds)", "none", ("none", "auto", "thin", "full")))
+opts.Add(
+    EnumVariable(
+        "lto", "Link-time optimization (production builds)", "none", ["none", "auto", "thin", "full"], ignorecase=2
+    )
+)
 opts.Add(BoolVariable("production", "Set defaults to build Godot for use in production", False))
 opts.Add(BoolVariable("threads", "Enable threading support", True))
 
 # Components
 opts.Add(BoolVariable("deprecated", "Enable compatibility code for deprecated and removed features", True))
-opts.Add(EnumVariable("precision", "Set the floating-point precision level", "single", ("single", "double")))
+opts.Add(
+    EnumVariable("precision", "Set the floating-point precision level", "single", ["single", "double"], ignorecase=2)
+)
 opts.Add(BoolVariable("minizip", "Enable ZIP archive support using minizip", True))
 opts.Add(BoolVariable("brotli", "Enable Brotli for decompression and WOFF2 fonts support", True))
 opts.Add(BoolVariable("xaudio2", "Enable the XAudio2 audio driver on supported platforms", False))
@@ -213,7 +224,9 @@ opts.Add(
 )
 opts.Add(BoolVariable("verbose", "Enable verbose output for the compilation", False))
 opts.Add(BoolVariable("progress", "Show a progress indicator during compilation", True))
-opts.Add(EnumVariable("warnings", "Level of compilation warnings", "all", ("extra", "all", "moderate", "no")))
+opts.Add(
+    EnumVariable("warnings", "Level of compilation warnings", "all", ["extra", "all", "moderate", "no"], ignorecase=2)
+)
 opts.Add(BoolVariable("werror", "Treat compiler warnings as errors", False))
 opts.Add("extra_suffix", "Custom extra suffix added to the base filename of all generated binary files", "")
 opts.Add("object_prefix", "Custom prefix added to the base filename of all generated object files", "")

platform/linuxbsd/detect.py

@@ -30,7 +30,7 @@ def get_opts():
     from SCons.Variables import BoolVariable, EnumVariable
 
     return [
-        EnumVariable("linker", "Linker program", "default", ("default", "bfd", "gold", "lld", "mold")),
+        EnumVariable("linker", "Linker program", "default", ["default", "bfd", "gold", "lld", "mold"], ignorecase=2),
         BoolVariable("use_llvm", "Use the LLVM compiler", False),
         BoolVariable("use_static_cpp", "Link libgcc and libstdc++ statically for better portability", True),
         BoolVariable("use_coverage", "Test Godot coverage", False),

platform/macos/detect.py

@@ -31,7 +31,7 @@ def get_opts():
         ("osxcross_sdk", "OSXCross SDK version", "darwin16"),
         ("MACOS_SDK_PATH", "Path to the macOS SDK", ""),
         ("vulkan_sdk_path", "Path to the Vulkan SDK", ""),
-        EnumVariable("macports_clang", "Build using Clang from MacPorts", "no", ("no", "5.0", "devel")),
+        EnumVariable("macports_clang", "Build using Clang from MacPorts", "no", ["no", "5.0", "devel"], ignorecase=2),
         BoolVariable("use_ubsan", "Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)", False),
         BoolVariable("use_asan", "Use LLVM/GCC compiler address sanitizer (ASAN)", False),
         BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN)", False),

platform/windows/detect.py

@@ -190,7 +190,7 @@ def get_opts():
             "Targeted Windows version, >= 0x0601 (Windows 7)",
             "0x0601",
         ),
-        EnumVariable("windows_subsystem", "Windows subsystem", "gui", ("gui", "console")),
+        EnumVariable("windows_subsystem", "Windows subsystem", "gui", ["gui", "console"], ignorecase=2),
         ("msvc_version", "MSVC version to use. Handled automatically by SCons if omitted.", ""),
         BoolVariable("use_mingw", "Use the Mingw compiler, even if MSVC is installed.", False),
         BoolVariable("use_llvm", "Use the LLVM compiler", False),