gentoo-overlay/app-emulation/wine/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>wine</herd>
<longdescription>
Wine is an Open Source implementation of the Windows API on top of X and Unix.

Think of Wine as a compatibility layer for running Windows programs. Wine does not require Microsoft Windows, as it is a completely free alternative implementation of the Windows API consisting of 100% non-Microsoft code, however Wine can optionally use native Windows DLLs if they are available. Wine provides both a development toolkit for porting Windows source code to Unix as well as a program loader, allowing many unmodified Windows programs to run on x86-based Unixes, including Linux, FreeBSD, and Solaris.
</longdescription> 
<use>
	<flag name='capi'>Enable ISDN support via CAPI</flag>
	<flag name='custom-cflags'>Bypass strip-flags; use at your own peril</flag>
	<flag name='dos'>Pull in <pkg>games-emulation/dosbox</pkg> to run DOS applications</flag>
	<flag name='gecko'>Add support for the Gecko engine when using iexplore</flag>
	<flag name='mono'>Add support for .NET using Wine's Mono add-on</flag>
	<flag name='opencl'>Enable OpenCL support</flag>
	<flag name='osmesa'>Add support for OpenGL in bitmaps using libOSMesa</flag>
	<flag name='perl'>Install helpers written in perl (winedump/winemaker)</flag>
	<flag name='prelink'>Run prelink on DLLs during build -- do not disable if you do not know what this means as it can break things at runtime</flag>
	<flag name='realtime'>Pull in <pkg>sys-auth/rtkit</pkg> for low-latency pulseaudio support</flag>
	<flag name='run-exes'>Use Wine to open and run .EXE and .MSI files</flag>
	<flag name='samba'>Add support for NTLM auth. see
		http://wiki.winehq.org/NtlmAuthSetupGuide and
		http://wiki.winehq.org/NtlmSigningAndSealing</flag>
	<flag name='udisks'>Support dynamic storage devices using <pkg>sys-fs/udisks</pkg></flag>
	<flag name='win32'>Build a 32bit version of Wine (won't run Win64 binaries)</flag>
	<flag name='win64'>Build a 64bit version of Wine (won't run Win32 binaries)</flag>
</use>
</pkgmetadata>