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flags

Specifies build flags to modify the compiling or linking process.

flags { "flag_list" }

Parameters

flag_list is a list of string flag names; see below for a list of valid flags. The flag values are not case-sensitive. Flags that are not supported by a particular platform or toolset are ignored.

FlagDescriptionNotes
ExcludeFromBuildExclude a source code file from the build, for the current configuration.
FatalCompileWarningsTreat compiler warnings as errors. Deprecated in Premake 5.0.0-beta4. Use fatalwarnings API instead.
FatalLinkWarningsTreat linker warnings as errors. Deprecated in Premake 5.0.0-beta4. Use fatalwarnings API instead.
FatalWarningsTreat all warnings as errors; equivalent to FatalCompileWarnings, FatalLinkWarnings. Deprecated in Premake 5.0.0-beta4. Use fatalwarnings API instead.
LinkTimeOptimizationEnable link-time (i.e. whole program) optimizations. Deprecated in Premake 5.0.0-beta4. Use linktimeoptimization API instead.
MapsEnable Generate Map File for Visual Studio
MFCEnable support for Microsoft Foundation Classes. Deprecated in Premake 5.0.0-beta4. Use mfc API instead.
MultiProcessorCompileEnable Visual Studio to use multiple compiler processes when building.
No64BitChecksDisable 64-bit portability warnings.
NoBufferSecurityCheckTurn off stack protection checks.
NoCopyLocalPrevent referenced assemblies from being copied to the target directory (C#)
NoFramePointerDisable the generation of stack frame pointers.
NoImplicitLinkDisable Visual Studio's default behavior of automatically linking dependent projects.
NoImportLibPrevent the generation of an import library for a Windows DLL.
NoIncrementalLinkDisable support for Visual Studio's incremental linking feature.
NoManifestPrevent the generation of a manifest for Windows executables and shared libraries.
NoMinimalRebuildDisable Visual Studio's minimal rebuild feature.Visual Studio has deprecated this feature as of vs2015.
NoPCHDisable precompiled header support. If not specified, the toolset default behavior will be used.
NoRuntimeChecksDisable Visual Studio's default stack frame and uninitialized variable checks on debug builds.
OmitDefaultLibraryOmit the specification of a runtime library in object files.
RelativeLinksForces the linker to use relative paths to libraries instead of absolute paths.
ShadowedVariablesWarn when a variable, type declaration, or function is shadowed.
UndefinedIdentifiersWarn if an undefined identifier is evaluated in an #if directive.
WPFMark the project as using Windows Presentation Framework, rather than WinForms.
DebugEnvsDontMergeNeeds documentation
DebugEnvsInheritNeeds documentation

Applies To

Project and file configurations, though not all flags are yet supported for files across all exporters.

Availability

Flags are currently available in Premake 5.0 beta3, but are considered deprecated. Future releases will be deprecating and removing all flags in favor of dedicated APIs.

Examples

-- Enable link-time (i.e. whole program) optimizations.
flags { "LinkTimeOptimization" }

See Also