Respect the user's USE_LINUX setting.

177 files changed, 66 insertions, 177 deletions

diff --git a/archivers/stuffit/Makefile b/archivers/stuffit/Makefile
index 69d3ff40ed76..c6418ac7cd99 100644
--- a/archivers/stuffit/Makefile
+++ b/archivers/stuffit/Makefile
@@ -20,7 +20,7 @@ NO_PACKAGE=	Only unmodified original package can be distributed
 
 ONLY_FOR_ARCHS=	i386 amd64
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 STRIP=		# empty: do not strip linux binary during INSTALL_PROGRAM
 NO_WRKSUBDIR=	yes
 STUFFIT_FILES=	bin/unstuff bin/stuff
diff --git a/astro/linux-setiathome/Makefile b/astro/linux-setiathome/Makefile
index bafda34c9ac2..d3a788143e1e 100644
--- a/astro/linux-setiathome/Makefile
+++ b/astro/linux-setiathome/Makefile
@@ -16,7 +16,7 @@ COMMENT=	Donate idle cycles to the search for space aliens - Linux i686 version
 #
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 
 # Local variables
 #
diff --git a/audio/baudline/Makefile b/audio/baudline/Makefile
index f6bd884f8936..6f4d0faa350f 100644
--- a/audio/baudline/Makefile
+++ b/audio/baudline/Makefile
@@ -23,7 +23,6 @@ BROKEN=		Unfetchable
 
 USE_X_PREFIX=	yes
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 NO_BUILD=	yes
 STRIP=
 
diff --git a/audio/linux-arts/Makefile b/audio/linux-arts/Makefile
index 7b0eee2600bd..108d6b92be4d 100644
--- a/audio/linux-arts/Makefile
+++ b/audio/linux-arts/Makefile
@@ -21,7 +21,7 @@ COMMENT=		Audio system for the KDE integrated X11 desktop
 
 BUILD_DEPENDS=		rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 PREFIX?=		${LINUXBASE}
 NO_MTREE=		yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/audio/linux-f10-arts/Makefile b/audio/linux-f10-arts/Makefile
index 7b0eee2600bd..108d6b92be4d 100644
--- a/audio/linux-f10-arts/Makefile
+++ b/audio/linux-f10-arts/Makefile
@@ -21,7 +21,7 @@ COMMENT=		Audio system for the KDE integrated X11 desktop
 
 BUILD_DEPENDS=		rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 PREFIX?=		${LINUXBASE}
 NO_MTREE=		yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/audio/linux-f8-arts/Makefile b/audio/linux-f8-arts/Makefile
index 7b0eee2600bd..108d6b92be4d 100644
--- a/audio/linux-f8-arts/Makefile
+++ b/audio/linux-f8-arts/Makefile
@@ -21,7 +21,7 @@ COMMENT=		Audio system for the KDE integrated X11 desktop
 
 BUILD_DEPENDS=		rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 PREFIX?=		${LINUXBASE}
 NO_MTREE=		yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/audio/linux-mbrola/Makefile b/audio/linux-mbrola/Makefile
index ab639e348676..d743249666ad 100644
--- a/audio/linux-mbrola/Makefile
+++ b/audio/linux-mbrola/Makefile
@@ -19,7 +19,7 @@ DIST_SUBDIR=	mbrola-linux
 MASTERDIR=	${PORTSDIR}/audio/mbrola
 MD5_FILE=	${.CURDIR}/distinfo
 ONLY_FOR_ARCHS=	alpha i386 ppc sparc64
-USE_LINUX=	y
+USE_LINUX?=	y
 USE_ZIP=	y
 
 MASTERDIR=	${.CURDIR}/../mbrola
diff --git a/audio/linux-vsound/Makefile b/audio/linux-vsound/Makefile
index 729c985afea6..301965d865af 100644
--- a/audio/linux-vsound/Makefile
+++ b/audio/linux-vsound/Makefile
@@ -19,7 +19,7 @@ COMMENT=	Utility for capturing audio streams from Linux binaries
 
 RUN_DEPENDS=	sox:${PORTSDIR}/audio/sox/
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 
 do-install:
diff --git a/audio/teamspeak3-server/Makefile b/audio/teamspeak3-server/Makefile
index c748c983dd46..fcba0625e2f7 100644
--- a/audio/teamspeak3-server/Makefile
+++ b/audio/teamspeak3-server/Makefile
@@ -20,7 +20,7 @@ WRKSRC=		${WRKDIR}/tss2_rc2
 ONLY_FOR_ARCHS=	i386
 USE_BZIP2=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_FILTER_SHLIBS=yes
 
 do-install:
diff --git a/audio/teamspeak_client/Makefile b/audio/teamspeak_client/Makefile
index 484667b05e50..9b615964bcfe 100644
--- a/audio/teamspeak_client/Makefile
+++ b/audio/teamspeak_client/Makefile
@@ -23,7 +23,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libjpeg.so.62:${PORTSDIR}/graphics/linux-jpeg
 ONLY_FOR_ARCHS=	i386
 USE_BZIP2=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 NO_FILTER_SHLIBS=yes
 
 do-install:
diff --git a/audio/teamspeak_server/Makefile b/audio/teamspeak_server/Makefile
index c748c983dd46..fcba0625e2f7 100644
--- a/audio/teamspeak_server/Makefile
+++ b/audio/teamspeak_server/Makefile
@@ -20,7 +20,7 @@ WRKSRC=		${WRKDIR}/tss2_rc2
 ONLY_FOR_ARCHS=	i386
 USE_BZIP2=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_FILTER_SHLIBS=yes
 
 do-install:
diff --git a/cad/linux-eagle/Makefile b/cad/linux-eagle/Makefile
index 651d6b605be5..e3bddcaf743f 100644
--- a/cad/linux-eagle/Makefile
+++ b/cad/linux-eagle/Makefile
@@ -28,7 +28,7 @@ DATADIR=	${PREFIX}/share/${PORTNAME:S/linux-//}
 RESTRICTED=	"Usage permitted for non-commercial purposes only"
 NO_CDROM=	"Sale for profit is not permitted"
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 PKGMESSAGE=	${WRKDIR}/pkg-message
 
diff --git a/cad/linux-eagle5/Makefile b/cad/linux-eagle5/Makefile
index 651d6b605be5..e3bddcaf743f 100644
--- a/cad/linux-eagle5/Makefile
+++ b/cad/linux-eagle5/Makefile
@@ -28,7 +28,7 @@ DATADIR=	${PREFIX}/share/${PORTNAME:S/linux-//}
 RESTRICTED=	"Usage permitted for non-commercial purposes only"
 NO_CDROM=	"Sale for profit is not permitted"
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 PKGMESSAGE=	${WRKDIR}/pkg-message
 
diff --git a/databases/sybase_ase/Makefile b/databases/sybase_ase/Makefile
index 2679c5208f58..f6c97df2dd9e 100644
--- a/databases/sybase_ase/Makefile
+++ b/databases/sybase_ase/Makefile
@@ -22,7 +22,7 @@ NO_PACKAGE=     "Packaging is pointless, the port does not build anything"
 NO_INSTALL_MANPAGES= yes
 PKGDEINSTALL=	${PKGDIR}/pkg-install
 
-USE_LINUX=      yes
+USE_LINUX?=      yes
 
 pre-install:
 	@${ECHO_MSG} "---> Creating sybase user and group"
diff --git a/devel/linux-allegro/Makefile b/devel/linux-allegro/Makefile
index 69b888e9e899..a310ff14145b 100644
--- a/devel/linux-allegro/Makefile
+++ b/devel/linux-allegro/Makefile
@@ -18,7 +18,7 @@ EXTRACT_ONLY=
 MAINTAINER=	freebsd-emulation@FreeBSD.org
 COMMENT=	Cross-platform game programming library (linux version)
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_LINUX_PREFIX=	yes
 LDCONFIG_LINUX=	${LINUXBASE}/sbin/ldconfig
 
diff --git a/devel/linux-f10-allegro/Makefile b/devel/linux-f10-allegro/Makefile
index 69b888e9e899..a310ff14145b 100644
--- a/devel/linux-f10-allegro/Makefile
+++ b/devel/linux-f10-allegro/Makefile
@@ -18,7 +18,7 @@ EXTRACT_ONLY=
 MAINTAINER=	freebsd-emulation@FreeBSD.org
 COMMENT=	Cross-platform game programming library (linux version)
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_LINUX_PREFIX=	yes
 LDCONFIG_LINUX=	${LINUXBASE}/sbin/ldconfig
 
diff --git a/devel/linux-f8-allegro/Makefile b/devel/linux-f8-allegro/Makefile
index 69b888e9e899..a310ff14145b 100644
--- a/devel/linux-f8-allegro/Makefile
+++ b/devel/linux-f8-allegro/Makefile
@@ -18,7 +18,7 @@ EXTRACT_ONLY=
 MAINTAINER=	freebsd-emulation@FreeBSD.org
 COMMENT=	Cross-platform game programming library (linux version)
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_LINUX_PREFIX=	yes
 LDCONFIG_LINUX=	${LINUXBASE}/sbin/ldconfig
 
diff --git a/devel/linux-runrev/Makefile b/devel/linux-runrev/Makefile
index 8e0ed0fc0c8f..1e6dcf068608 100644
--- a/devel/linux-runrev/Makefile
+++ b/devel/linux-runrev/Makefile
@@ -25,7 +25,6 @@ RUN_DEPENDS=	xanim:${PORTSDIR}/multimedia/xanim \
 NO_CDROM=	"Sale for profit is not permitted"
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 NO_BUILD=	yes
 
 WRKSRC=		${WRKDIR}/Revolution-${PORTVERSION}
diff --git a/devel/linux-understand_ada/Makefile b/devel/linux-understand_ada/Makefile
index 1811f55c172e..274fb46e45ea 100644
--- a/devel/linux-understand_ada/Makefile
+++ b/devel/linux-understand_ada/Makefile
@@ -20,7 +20,6 @@ COMMENT=	Understand can parse a Ada project helping reverse engineer it
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 
diff --git a/devel/linux-understand_c/Makefile b/devel/linux-understand_c/Makefile
index c1c15d208080..d4c9e3a4e548 100644
--- a/devel/linux-understand_c/Makefile
+++ b/devel/linux-understand_c/Makefile
@@ -21,7 +21,6 @@ COMMENT=	Understand can parse a C/C++ project helping reverse engineer it
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 
diff --git a/devel/linux-understand_java/Makefile b/devel/linux-understand_java/Makefile
index 543e1529dc9f..75fa8067aee3 100644
--- a/devel/linux-understand_java/Makefile
+++ b/devel/linux-understand_java/Makefile
@@ -20,7 +20,6 @@ COMMENT=	Understand can parse a Java project helping reverse engineer it
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 
diff --git a/devel/linux_devtools/Makefile b/devel/linux_devtools/Makefile
index 7f7e664654a9..f447a97959b2 100644
--- a/devel/linux_devtools/Makefile
+++ b/devel/linux_devtools/Makefile
@@ -35,7 +35,7 @@ COMMENT=		Packages needed for doing development in Linux mode
 
 BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 NO_LATEST_LINK=		yes
 ONLY_FOR_ARCHS=		i386
 CONFLICTS=		linux_devtools-*
diff --git a/devel/zendstudio/Makefile b/devel/zendstudio/Makefile
index 4a2e872affe2..a35b12eb2acc 100644
--- a/devel/zendstudio/Makefile
+++ b/devel/zendstudio/Makefile
@@ -16,7 +16,6 @@ COMMENT=	A PHP IDE
 
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 RESTRICTED=	"Redistribution is not permitted"
 NO_PACKAGES=	${RESTRICTED}
diff --git a/editors/edith/Makefile b/editors/edith/Makefile
index 2ea8df8d9059..79cdac4b7076 100644
--- a/editors/edith/Makefile
+++ b/editors/edith/Makefile
@@ -18,7 +18,6 @@ COMMENT=	A X11 GUI editor for binary and plain text files
 
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 ONLY_FOR_ARCHS=	i386
 
diff --git a/editors/staroffice5/Makefile b/editors/staroffice5/Makefile
index d82efc9c255e..987adec11bad 100644
--- a/editors/staroffice5/Makefile
+++ b/editors/staroffice5/Makefile
@@ -25,7 +25,6 @@ NO_LATEST_LINK=	yes
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Must be downloaded direct from Sun via www interface'
 
-USE_LINUX=	yes
 USE_REINPLACE=	yes
 IS_INTERACTIVE=	yes
 EXTRACT_ONLY=	${DISTNAME}${EXTRACT_SUFX}
diff --git a/editors/staroffice52/Makefile b/editors/staroffice52/Makefile
index 750ab2c433e1..40bc9cc72532 100644
--- a/editors/staroffice52/Makefile
+++ b/editors/staroffice52/Makefile
@@ -35,7 +35,6 @@ COMMENT=	Integrated wordprocessor/dbase/spreadheet/drawing/chart/browser
 FETCH_DEPENDS=	${LINUXBASE}/lib/libc.so.6:${PORTSDIR}/emulators/linux_base-8
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 NO_LATEST_LINK=	yes
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Must be downloaded direct from Sun via www interface'
diff --git a/editors/staroffice60/Makefile b/editors/staroffice60/Makefile
index d8c61978dac6..6cbb8b0b1821 100644
--- a/editors/staroffice60/Makefile
+++ b/editors/staroffice60/Makefile
@@ -32,7 +32,6 @@ NO_LATEST_LINK=	yes
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Must be bought and downloaded direct from Sun via www interface'
 
-USE_LINUX=	yes
 IS_INTERACTIVE=	yes
 NO_BUILD=	yes
 SOVERSION=	${PORTNAME}${PORTVERSION}
diff --git a/editors/staroffice70/Makefile b/editors/staroffice70/Makefile
index a55d87b1d361..048ba74c9e5f 100644
--- a/editors/staroffice70/Makefile
+++ b/editors/staroffice70/Makefile
@@ -35,7 +35,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Must be bought and downloaded direct from Sun via www interface'
 
-USE_LINUX=	yes
 IS_INTERACTIVE=	yes
 NO_BUILD=	yes
 SOVERSION=	${PORTNAME}${PORTVERSION}
diff --git a/emulators/linux-geepee32/Makefile b/emulators/linux-geepee32/Makefile
index 59e6a8c6e9fe..1ce7f856b758 100644
--- a/emulators/linux-geepee32/Makefile
+++ b/emulators/linux-geepee32/Makefile
@@ -19,7 +19,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libSDL-1.2.so.0:${PORTSDIR}/devel/linux-sdl12
 		${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 USE_ZIP=	yes
 NO_WRKSUBDIR=	yes
diff --git a/emulators/linux-peops-softgpu/Makefile b/emulators/linux-peops-softgpu/Makefile
index 9e5d85ee8cae..7afaccb9d61c 100644
--- a/emulators/linux-peops-softgpu/Makefile
+++ b/emulators/linux-peops-softgpu/Makefile
@@ -19,7 +19,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux
 
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 ONLY_FOR_ARCHS=	i386
 
diff --git a/emulators/linux-peops-spu/Makefile b/emulators/linux-peops-spu/Makefile
index a9e0fc2d2c61..9a3e99a4c964 100644
--- a/emulators/linux-peops-spu/Makefile
+++ b/emulators/linux-peops-spu/Makefile
@@ -19,7 +19,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux
 
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 ONLY_FOR_ARCHS=	i386
 
diff --git a/emulators/linux-pete-mesagpu/Makefile b/emulators/linux-pete-mesagpu/Makefile
index a8ff9c374474..11e40813be5d 100644
--- a/emulators/linux-pete-mesagpu/Makefile
+++ b/emulators/linux-pete-mesagpu/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux
 
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 ONLY_FOR_ARCHS=	i386
 
diff --git a/emulators/linux-vmware-toolbox2/Makefile b/emulators/linux-vmware-toolbox2/Makefile
index 75792d7a1f7e..e31b3a929bbb 100644
--- a/emulators/linux-vmware-toolbox2/Makefile
+++ b/emulators/linux-vmware-toolbox2/Makefile
@@ -20,7 +20,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 
 ONLY_FOR_ARCHS=	i386
 PLIST_FILES=	bin/linux-vmware-toolbox
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 NO_BUILD=	yes
 .if !defined(BATCH)
diff --git a/emulators/linux-vmware-toolbox4/Makefile b/emulators/linux-vmware-toolbox4/Makefile
index 869a6428e3dd..d19844e81f30 100644
--- a/emulators/linux-vmware-toolbox4/Makefile
+++ b/emulators/linux-vmware-toolbox4/Makefile
@@ -25,7 +25,6 @@ WRKSRC=		${WRKDIR}/vmware-tools-distrib
 STRIP=
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 NO_BUILD=	yes
 .if !defined(BATCH)
diff --git a/emulators/linux-vmware-toolbox5/Makefile b/emulators/linux-vmware-toolbox5/Makefile
index 869a6428e3dd..d19844e81f30 100644
--- a/emulators/linux-vmware-toolbox5/Makefile
+++ b/emulators/linux-vmware-toolbox5/Makefile
@@ -25,7 +25,6 @@ WRKSRC=		${WRKDIR}/vmware-tools-distrib
 STRIP=
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 NO_BUILD=	yes
 .if !defined(BATCH)
diff --git a/emulators/linux-vmware-toolbox6/Makefile b/emulators/linux-vmware-toolbox6/Makefile
index 869a6428e3dd..d19844e81f30 100644
--- a/emulators/linux-vmware-toolbox6/Makefile
+++ b/emulators/linux-vmware-toolbox6/Makefile
@@ -25,7 +25,6 @@ WRKSRC=		${WRKDIR}/vmware-tools-distrib
 STRIP=
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 NO_BUILD=	yes
 .if !defined(BATCH)
diff --git a/emulators/linux-winetools/Makefile b/emulators/linux-winetools/Makefile
index 3faeddf5ccda..bfd4c6e430d5 100644
--- a/emulators/linux-winetools/Makefile
+++ b/emulators/linux-winetools/Makefile
@@ -23,7 +23,6 @@ NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386
 PLIST_FILES=	bin/winetools
-USE_LINUX=	yes
 
 BRANDELF?=	/usr/bin/brandelf
 STRIP=
diff --git a/emulators/rtc/Makefile b/emulators/rtc/Makefile
index 97f016f9be4f..1d54e5ffa33c 100644
--- a/emulators/rtc/Makefile
+++ b/emulators/rtc/Makefile
@@ -18,7 +18,7 @@ COMMENT=	Kernel module which provides /dev/rtc device support
 WRKSRC=		${WRKDIR}/files
 
 NO_FETCH=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 
 KMODDIR=	${PREFIX}/modules
 
diff --git a/emulators/vmware2/Makefile b/emulators/vmware2/Makefile
index 723cfff42edc..29392bba00fc 100644
--- a/emulators/vmware2/Makefile
+++ b/emulators/vmware2/Makefile
@@ -40,7 +40,6 @@ FREEBSD_MODULE_SITES=	\
 #		http://mirror.aarnet.edu.au/pub/vmware/freebsd/:patch
 
 USE_SUBMAKE=	yes
-USE_LINUX=	yes
 USE_PERL5=	yes
 VMDIR=		${PREFIX}/lib/vmware
 SRC_BASE?=	/usr/src
diff --git a/emulators/vmware3/Makefile b/emulators/vmware3/Makefile
index 0eaaf349d495..69679054dba4 100644
--- a/emulators/vmware3/Makefile
+++ b/emulators/vmware3/Makefile
@@ -35,7 +35,6 @@ FREEBSD_MODULE_SITES=	\
 		http://www.break.net/orlando/vmware3/:patch \
 
 USE_SUBMAKE=	yes
-USE_LINUX=	yes
 VMDIR=		${PREFIX}/lib/vmware
 SRC_BASE?=	/usr/src
 
diff --git a/emulators/winetools/Makefile b/emulators/winetools/Makefile
index 3faeddf5ccda..bfd4c6e430d5 100644
--- a/emulators/winetools/Makefile
+++ b/emulators/winetools/Makefile
@@ -23,7 +23,6 @@ NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386
 PLIST_FILES=	bin/winetools
-USE_LINUX=	yes
 
 BRANDELF?=	/usr/bin/brandelf
 STRIP=
diff --git a/french/gibi/Makefile b/french/gibi/Makefile
index cdfe93e9eefb..2a48274a7db9 100644
--- a/french/gibi/Makefile
+++ b/french/gibi/Makefile
@@ -34,7 +34,6 @@ RESTRICTED=	"Toute personne chargeant le logiciel GIBI s'engage à ne\
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
 USE_REINPLACE=	yes
 REINPLACE_ARGS=	-i ""
 NO_BUILD=	yes
diff --git a/french/homard/Makefile b/french/homard/Makefile
index bcf5cf88067a..5f1d1e2f0313 100644
--- a/french/homard/Makefile
+++ b/french/homard/Makefile
@@ -25,7 +25,7 @@ RESTRICTED=	"Toute personne chargeant le logiciel HOMARD s'engage à ne\
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_PYTHON=	yes
 USE_REINPLACE=	yes
 REINPLACE_ARGS=	-i ""
diff --git a/french/staroffice52/Makefile b/french/staroffice52/Makefile
index 43523065a49b..6b7b6c57824b 100644
--- a/french/staroffice52/Makefile
+++ b/french/staroffice52/Makefile
@@ -35,7 +35,6 @@ COMMENT=	Suite bureautique intégrée
 FETCH_DEPENDS=	${LINUXBASE}/lib/libc.so.6:${PORTSDIR}/emulators/linux_base-8
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Doit être téléchargé depuis le site web de Sun'
 CD_MOUNTPT=	'/cdrom'
diff --git a/games/HeroesOfMightAndMagic/Makefile b/games/HeroesOfMightAndMagic/Makefile
index 1518ee2cebdc..0809894d01cf 100644
--- a/games/HeroesOfMightAndMagic/Makefile
+++ b/games/HeroesOfMightAndMagic/Makefile
@@ -20,7 +20,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux
 PLIST=		${WRKDIR}/PLIST
 IS_INTERACTIVE=	yes
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 NO_BUILD=	yes
 NO_WRKSUBDIR=	yes
 NO_CDROM=	Software is commercial
diff --git a/games/adom/Makefile b/games/adom/Makefile
index 7d1dbc1f39bd..0ce9b2bdc672 100644
--- a/games/adom/Makefile
+++ b/games/adom/Makefile
@@ -21,7 +21,6 @@ NO_CDROM=	Copy of CD must be sent to author
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
 WRKSRC=		${WRKDIR}/adom
 NO_BUILD=	yes
 STRIP=		# empty: do not strip linux binary!
diff --git a/games/atitd/Makefile b/games/atitd/Makefile
index 1679993b0c33..4377c5fa0817 100644
--- a/games/atitd/Makefile
+++ b/games/atitd/Makefile
@@ -28,7 +28,7 @@ RUN_DEPENDS+=	${LINUXBASE}/lib/libGL.so:${PORTSDIR}/graphics/linux_glx
 .endif
 
 PLIST_FILES=	bin/atitd
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_MESA=	yes
 
 ONLY_FOR_ARCHS=	i386
diff --git a/games/dsnake/Makefile b/games/dsnake/Makefile
index 7ab55814583c..032fa929fc02 100644
--- a/games/dsnake/Makefile
+++ b/games/dsnake/Makefile
@@ -22,7 +22,6 @@ NO_PACKAGE=	Licence forbids any repacking and reselling
 ONLY_FOR_ARCHS=	i386
 NO_BUILD=	yes
 PREFIX?=	${X11BASE}
-USE_LINUX=	yes
 WRKSRC=		${WRKDIR}/DeluxeSnake
 
 do-install:
diff --git a/games/halflifeserver/Makefile b/games/halflifeserver/Makefile
index 4989f8948a2a..5ae639046c1d 100644
--- a/games/halflifeserver/Makefile
+++ b/games/halflifeserver/Makefile
@@ -18,7 +18,7 @@ COMMENT=	Half-Life Dedicated Server for Linux
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_PERL5=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
diff --git a/games/hlserver-cs/Makefile b/games/hlserver-cs/Makefile
index 5c2a84031f15..f0dfa2888124 100644
--- a/games/hlserver-cs/Makefile
+++ b/games/hlserver-cs/Makefile
@@ -26,7 +26,7 @@ USE_SUBMAKE=	yes
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_PERL5=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
diff --git a/games/hohlin/Makefile b/games/hohlin/Makefile
index c09c21026a9d..4045216f221c 100644
--- a/games/hohlin/Makefile
+++ b/games/hohlin/Makefile
@@ -27,7 +27,6 @@ ONLY_FOR_ARCHS=	i386
 SHORTPORTVERSION=${PORTVERSION:C/([0-9]*)\.([0-9]*)/\1\2/}
 
 .include <bsd.port.pre.mk>
-USE_LINUX=	YES
 
 do-install:
 	${MKDIR} ${DATADIR}
diff --git a/games/linux-enemyterritory/Makefile b/games/linux-enemyterritory/Makefile
index 7ea496bb1681..fb968e6aa7c0 100644
--- a/games/linux-enemyterritory/Makefile
+++ b/games/linux-enemyterritory/Makefile
@@ -27,7 +27,7 @@ COMMENT=	Wolfenstein: Enemy Territory (Linux version)
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_PACKAGE=	Distfile is 258MB, set FORCE_PACKAGE if you really want to build this package
 RESTRICTED=	Redistribution is limited, see license
 NO_BUILD=	yes
diff --git a/games/linux-nwnclient/Makefile b/games/linux-nwnclient/Makefile
index 5acc76a7785e..4fc4b98f2e0b 100644
--- a/games/linux-nwnclient/Makefile
+++ b/games/linux-nwnclient/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LOCALBASE}/share/nwndata/NWNv129.txt:${PORTSDIR}/games/nwndata \
 		${LINUXBASE}/usr/X11R6/lib/libGL.so.1.2:${PORTSDIR}/graphics/linux_dri \
 		${LINUXBASE}/usr/lib/libSDL-1.2.so.0:${PORTSDIR}/devel/linux-sdl12
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386
 NWNDATADIR=	${LOCALBASE}/share/nwndata
diff --git a/games/linux-nwserver/Makefile b/games/linux-nwserver/Makefile
index aa4523fd3eaa..0f7072225c6f 100644
--- a/games/linux-nwserver/Makefile
+++ b/games/linux-nwserver/Makefile
@@ -16,7 +16,7 @@ DISTNAME=	linuxserver${PORTVERSION:S/.//}
 MAINTAINER=	apeiron@coitusmentis.info
 COMMENT=	Neverwinter Nights Linux (x86) Dedicated Server
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386
 WRKSRC=		${WRKDIR}
diff --git a/games/linux-q3ademo/Makefile b/games/linux-q3ademo/Makefile
index 1af278097f51..be3e026c84f3 100644
--- a/games/linux-q3ademo/Makefile
+++ b/games/linux-q3ademo/Makefile
@@ -23,7 +23,6 @@ COMMENT=	Linux 3d shooter from id Software / Loki Software (demo version)
 
 PREFIX?=	${X11BASE}
 USE_GL=		yes
-USE_LINUX=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/games/linux-quake3-demo/Makefile b/games/linux-quake3-demo/Makefile
index 1af278097f51..be3e026c84f3 100644
--- a/games/linux-quake3-demo/Makefile
+++ b/games/linux-quake3-demo/Makefile
@@ -23,7 +23,6 @@ COMMENT=	Linux 3d shooter from id Software / Loki Software (demo version)
 
 PREFIX?=	${X11BASE}
 USE_GL=		yes
-USE_LINUX=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/games/linux-quake3/Makefile b/games/linux-quake3/Makefile
index 402bbc6573cf..781b49a5b18f 100644
--- a/games/linux-quake3/Makefile
+++ b/games/linux-quake3/Makefile
@@ -19,7 +19,7 @@ COMMENT=	Quake III Arena Dedicated Server for Linux
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_PERL5=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
diff --git a/games/linux-spheresofchaos-demo/Makefile b/games/linux-spheresofchaos-demo/Makefile
index 0f65e02407b5..4f641f568a5d 100644
--- a/games/linux-spheresofchaos-demo/Makefile
+++ b/games/linux-spheresofchaos-demo/Makefile
@@ -20,7 +20,6 @@ COMMENT=	An unusual and spectacular shoot-em-up for the PC
 
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libSDL-1.2.so.0:${PORTSDIR}/devel/linux-sdl12
 
-USE_LINUX=	yes
 USE_ZIP=	yes
 
 NO_BUILD=	yes
diff --git a/games/linux-ssamtse/Makefile b/games/linux-ssamtse/Makefile
index 57469a3bd3fa..9f365edfdfaf 100644
--- a/games/linux-ssamtse/Makefile
+++ b/games/linux-ssamtse/Makefile
@@ -23,7 +23,6 @@ USE_BZIP2=	yes
 USE_REINPLACE=	yes
 USE_X_PREFIX=	yes
 USE_GL=		yes
-USE_LINUX=	yes
 INSTALLS_SHLIB=	yes
 NO_PACKAGE=	yes	# distfiles must be downloaded manually, wierd legal issues etc etc etc.
 
diff --git a/games/linux-steam/Makefile b/games/linux-steam/Makefile
index 4f970630fe47..efa38c1064d9 100644
--- a/games/linux-steam/Makefile
+++ b/games/linux-steam/Makefile
@@ -19,7 +19,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libX11.so.6:${PORTSDIR}/x11/linux-XFree8
 
 IS_INTERACTIVE=	yes
 PKGMESSAGE=	${WRKDIR}/pkg-message
-USE_LINUX=	yes
 
 INSTALLDIR?=	steam
 
diff --git a/games/q3server/Makefile b/games/q3server/Makefile
index 402bbc6573cf..781b49a5b18f 100644
--- a/games/q3server/Makefile
+++ b/games/q3server/Makefile
@@ -19,7 +19,7 @@ COMMENT=	Quake III Arena Dedicated Server for Linux
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_PERL5=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
diff --git a/games/rt2-demo/Makefile b/games/rt2-demo/Makefile
index 8ea4735c9423..bd99ff6d6bf1 100644
--- a/games/rt2-demo/Makefile
+++ b/games/rt2-demo/Makefile
@@ -19,7 +19,7 @@ COMMENT=	The free demo of Railroad Tycoon II
 
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 
 do-install:
 		@${SH} ${FILESDIR}/do-install ${PREFIX} ${DISTDIR}
diff --git a/games/rtcw-paks/Makefile b/games/rtcw-paks/Makefile
index c7c2f5aa8078..001775f2d5cd 100644
--- a/games/rtcw-paks/Makefile
+++ b/games/rtcw-paks/Makefile
@@ -24,7 +24,7 @@ BUILD_DEPENDS=	${PREFIX}/usr/games/rtcw/wolf.x86:${PORTSDIR}/games/rtcw
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 EXTRACT_ONLY=	# Don't extract anything
 STRIP=
 
diff --git a/games/rtcw/Makefile b/games/rtcw/Makefile
index d6afa2d4f265..d4b58d65182e 100644
--- a/games/rtcw/Makefile
+++ b/games/rtcw/Makefile
@@ -18,7 +18,7 @@ COMMENT=	Return to Castle Wolfenstein for Linux
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
 NO_WRKSUBDIR=	yes
diff --git a/games/ssamtse/Makefile b/games/ssamtse/Makefile
index 57469a3bd3fa..9f365edfdfaf 100644
--- a/games/ssamtse/Makefile
+++ b/games/ssamtse/Makefile
@@ -23,7 +23,6 @@ USE_BZIP2=	yes
 USE_REINPLACE=	yes
 USE_X_PREFIX=	yes
 USE_GL=		yes
-USE_LINUX=	yes
 INSTALLS_SHLIB=	yes
 NO_PACKAGE=	yes	# distfiles must be downloaded manually, wierd legal issues etc etc etc.
 
diff --git a/games/stvef-paks/Makefile b/games/stvef-paks/Makefile
index 1d12b416c8f7..a5784dda5731 100644
--- a/games/stvef-paks/Makefile
+++ b/games/stvef-paks/Makefile
@@ -23,7 +23,7 @@ BUILD_DEPENDS=	${PREFIX}/usr/games/stvef/linuxstvefded_1.2-static:${PORTSDIR}/ga
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 EXTRACT_ONLY=	# Don't extract anything
 STRIP=
 
diff --git a/games/stvef-server/Makefile b/games/stvef-server/Makefile
index f8d41f4210ed..0232ab3316c0 100644
--- a/games/stvef-server/Makefile
+++ b/games/stvef-server/Makefile
@@ -18,7 +18,7 @@ COMMENT=	Star Trek Voyager: Elite Forces dedicated server for Linux
 ONLY_FOR_ARCHS=	i386
 USE_ZIP=	yes
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 WRKSRC=		${WRKDIR}/Linux
 STRIP=
diff --git a/games/utserver-to/Makefile b/games/utserver-to/Makefile
index 0bace144f6b7..1e8acf772827 100644
--- a/games/utserver-to/Makefile
+++ b/games/utserver-to/Makefile
@@ -26,7 +26,7 @@ RUN_DEPENDS=	${LINUXBASE}/usr/games/ut-server/System/ucc-bin:${UTSERVER_PORT}
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_PERL5=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
diff --git a/games/utserver/Makefile b/games/utserver/Makefile
index 62fcb305e3df..6406c755f406 100644
--- a/games/utserver/Makefile
+++ b/games/utserver/Makefile
@@ -21,7 +21,6 @@ BUILD_DEPENDS=	${RUN_DEPENDS}
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
 USE_PERL5=	yes
 NO_CDROM=	"Size; the data set is much too big"
 NO_BUILD=	yes
diff --git a/german/citrix_ica/Makefile b/german/citrix_ica/Makefile
index 5550eba142ca..bbad60918208 100644
--- a/german/citrix_ica/Makefile
+++ b/german/citrix_ica/Makefile
@@ -23,7 +23,6 @@ IS_INTERACTIVE=	"Noisy license agreement ignores stdin"
 
 NO_WRKSUBDIR=	Yes
 NO_BUILD=       Yes
-USE_LINUX=	yes
 
 CDIR=	${PREFIX}/ICAClient
 BINDIR=		${PREFIX}/bin
diff --git a/german/citrix_xenapp/Makefile b/german/citrix_xenapp/Makefile
index 5550eba142ca..bbad60918208 100644
--- a/german/citrix_xenapp/Makefile
+++ b/german/citrix_xenapp/Makefile
@@ -23,7 +23,6 @@ IS_INTERACTIVE=	"Noisy license agreement ignores stdin"
 
 NO_WRKSUBDIR=	Yes
 NO_BUILD=       Yes
-USE_LINUX=	yes
 
 CDIR=	${PREFIX}/ICAClient
 BINDIR=		${PREFIX}/bin
diff --git a/german/staroffice5/Makefile b/german/staroffice5/Makefile
index a56ccfe322c8..0acf731749fa 100644
--- a/german/staroffice5/Makefile
+++ b/german/staroffice5/Makefile
@@ -26,7 +26,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 NO_LATEST_LINK=	yes
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Sie muessen StarOffice manuell via WWW-Interface herunterladen.'
-USE_LINUX=	yes
 IS_INTERACTIVE=	yes
 EXTRACT_ONLY=	${DISTNAME}${EXTRACT_SUFX}
 EXTRACT_CMD=	${CAT}
diff --git a/german/staroffice52/Makefile b/german/staroffice52/Makefile
index 45aab9d363e0..8695f32ca341 100644
--- a/german/staroffice52/Makefile
+++ b/german/staroffice52/Makefile
@@ -33,7 +33,6 @@ COMMENT=	Integrated wordprocessor/dbase/spreadheet/drawing/chart/browser
 FETCH_DEPENDS=	${LINUXBASE}/lib/libc.so.6:${PORTSDIR}/emulators/linux_base-8
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 NO_LATEST_LINK=	yes
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Sie muessen StarOffice manuell via WWW-Interface herunterladen.'
diff --git a/german/staroffice70/Makefile b/german/staroffice70/Makefile
index 62c455a11236..f450b48ce3be 100644
--- a/german/staroffice70/Makefile
+++ b/german/staroffice70/Makefile
@@ -35,7 +35,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 ONLY_FOR_ARCHS=	i386
 NO_CDROM=	'Must be bought and downloaded direct from Sun via www interface'
 
-USE_LINUX=	yes
 IS_INTERACTIVE=	yes
 NO_BUILD=	yes
 SOVERSION=	${PORTNAME}${PORTVERSION}
diff --git a/graphics/linux-ac3d/Makefile b/graphics/linux-ac3d/Makefile
index 057ed8feff3a..4ebb90f14a06 100644
--- a/graphics/linux-ac3d/Makefile
+++ b/graphics/linux-ac3d/Makefile
@@ -22,7 +22,6 @@ LIB_DEPENDS=	${LINUXBASE}/usr/libGLU.so.1:${PORTSDIR}/graphics/linux_mesa3
 .endif
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386
 WRKSRC=		${WRKDIR}/${PORTNAME}lx
diff --git a/graphics/linux-bmrt/Makefile b/graphics/linux-bmrt/Makefile
index 3a1c0c963f07..356fd54e6962 100644
--- a/graphics/linux-bmrt/Makefile
+++ b/graphics/linux-bmrt/Makefile
@@ -17,7 +17,6 @@ COMMENT=	A collection of rendering programs that use the RenderMan interface
 
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libGL.so.1:${PORTSDIR}/graphics/linux_mesa3
 
-USE_LINUX=	yes
 WRKSRC=		${WRKDIR}/BMRT2.6
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386
diff --git a/graphics/linux-f10-gdk-pixbuf/Makefile b/graphics/linux-f10-gdk-pixbuf/Makefile
index 1041587a2d05..c6226f70dda3 100644
--- a/graphics/linux-f10-gdk-pixbuf/Makefile
+++ b/graphics/linux-f10-gdk-pixbuf/Makefile
@@ -24,7 +24,7 @@ BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 CONFLICTS=	linux-gtk2*
 
 USE_LINUX_PREFIX=yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 ONLY_FOR_ARCHS=	i386
 DIST_SUBDIR=	rpm
 NO_BUILD=	yes
diff --git a/graphics/linux-f10-libmng/Makefile b/graphics/linux-f10-libmng/Makefile
index 7082c44c5534..7dc5f3cab911 100644
--- a/graphics/linux-f10-libmng/Makefile
+++ b/graphics/linux-f10-libmng/Makefile
@@ -24,7 +24,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libjpeg.so.62:${PORTSDIR}/graphics/linux-jpeg
 BASEVERSION=	8.0
 USE_LINUX_RPM=	yes
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386
 
 DIST_SUBDIR=	rpm
diff --git a/graphics/linux-f10-sdl_image/Makefile b/graphics/linux-f10-sdl_image/Makefile
index a7d1248095a3..6d7f53e16e9f 100644
--- a/graphics/linux-f10-sdl_image/Makefile
+++ b/graphics/linux-f10-sdl_image/Makefile
@@ -21,7 +21,6 @@ COMMENT=	A simple library to load images as SDL interfaces (linux version)
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libSDL-1.2.so.0:${PORTSDIR}/devel/linux-sdl12
 BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
 USE_LINUX_PREFIX=	yes
 LDCONFIG_LINUX=	${LINUXBASE}/sbin/ldconfig
 
diff --git a/graphics/linux-f8-gdk-pixbuf/Makefile b/graphics/linux-f8-gdk-pixbuf/Makefile
index 1041587a2d05..c6226f70dda3 100644
--- a/graphics/linux-f8-gdk-pixbuf/Makefile
+++ b/graphics/linux-f8-gdk-pixbuf/Makefile
@@ -24,7 +24,7 @@ BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 CONFLICTS=	linux-gtk2*
 
 USE_LINUX_PREFIX=yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 ONLY_FOR_ARCHS=	i386
 DIST_SUBDIR=	rpm
 NO_BUILD=	yes
diff --git a/graphics/linux-f8-libmng/Makefile b/graphics/linux-f8-libmng/Makefile
index 7082c44c5534..7dc5f3cab911 100644
--- a/graphics/linux-f8-libmng/Makefile
+++ b/graphics/linux-f8-libmng/Makefile
@@ -24,7 +24,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libjpeg.so.62:${PORTSDIR}/graphics/linux-jpeg
 BASEVERSION=	8.0
 USE_LINUX_RPM=	yes
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386
 
 DIST_SUBDIR=	rpm
diff --git a/graphics/linux-f8-sdl_image/Makefile b/graphics/linux-f8-sdl_image/Makefile
index a7d1248095a3..6d7f53e16e9f 100644
--- a/graphics/linux-f8-sdl_image/Makefile
+++ b/graphics/linux-f8-sdl_image/Makefile
@@ -21,7 +21,6 @@ COMMENT=	A simple library to load images as SDL interfaces (linux version)
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libSDL-1.2.so.0:${PORTSDIR}/devel/linux-sdl12
 BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
 USE_LINUX_PREFIX=	yes
 LDCONFIG_LINUX=	${LINUXBASE}/sbin/ldconfig
 
diff --git a/graphics/linux-gdk-pixbuf/Makefile b/graphics/linux-gdk-pixbuf/Makefile
index 1041587a2d05..c6226f70dda3 100644
--- a/graphics/linux-gdk-pixbuf/Makefile
+++ b/graphics/linux-gdk-pixbuf/Makefile
@@ -24,7 +24,7 @@ BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 CONFLICTS=	linux-gtk2*
 
 USE_LINUX_PREFIX=yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 ONLY_FOR_ARCHS=	i386
 DIST_SUBDIR=	rpm
 NO_BUILD=	yes
diff --git a/graphics/linux-libmng/Makefile b/graphics/linux-libmng/Makefile
index 7082c44c5534..7dc5f3cab911 100644
--- a/graphics/linux-libmng/Makefile
+++ b/graphics/linux-libmng/Makefile
@@ -24,7 +24,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libjpeg.so.62:${PORTSDIR}/graphics/linux-jpeg
 BASEVERSION=	8.0
 USE_LINUX_RPM=	yes
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386
 
 DIST_SUBDIR=	rpm
diff --git a/graphics/linux-panorama-tools/Makefile b/graphics/linux-panorama-tools/Makefile
index 93f9b2786f6a..8b12832a7b5e 100644
--- a/graphics/linux-panorama-tools/Makefile
+++ b/graphics/linux-panorama-tools/Makefile
@@ -26,7 +26,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/bin/jpegtran:${PORTSDIR}/graphics/linux-jpeg \
 		${LINUXBASE}/usr/bin/tiffcmp:${PORTSDIR}/graphics/linux-tiff \
 		${LINUXBASE}/usr/lib/libpng12.so.0.1.2.7:${PORTSDIR}/graphics/linux-png
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 
 WRKSRC=	${WRKDIR}/PTLinux
diff --git a/graphics/linux-sdl_image/Makefile b/graphics/linux-sdl_image/Makefile
index a7d1248095a3..6d7f53e16e9f 100644
--- a/graphics/linux-sdl_image/Makefile
+++ b/graphics/linux-sdl_image/Makefile
@@ -21,7 +21,6 @@ COMMENT=	A simple library to load images as SDL interfaces (linux version)
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libSDL-1.2.so.0:${PORTSDIR}/devel/linux-sdl12
 BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 
-USE_LINUX=		yes
 USE_LINUX_PREFIX=	yes
 LDCONFIG_LINUX=	${LINUXBASE}/sbin/ldconfig
 
diff --git a/graphics/linux_dri/Makefile b/graphics/linux_dri/Makefile
index a60758d06be6..0b39b45f9efa 100644
--- a/graphics/linux_dri/Makefile
+++ b/graphics/linux_dri/Makefile
@@ -25,7 +25,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libX11.so.6:${PORTSDIR}/x11/linux-XFree8
 WRKSRC=		${WRKDIR}/lib
 NO_BUILD=	yes
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
 
 ONLY_FOR_ARCHS=	i386
 
diff --git a/graphics/linux_glide/Makefile b/graphics/linux_glide/Makefile
index 599f4fb62974..3dcfedc701a6 100644
--- a/graphics/linux_glide/Makefile
+++ b/graphics/linux_glide/Makefile
@@ -22,7 +22,7 @@ COMMENT=	Linux library implementing the GLIDE interface to 3dfx video cards
 ONLY_FOR_ARCHS=	i386
 
 USE_LINUX_PREFIX=yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_MTREE=	yes
 NO_BUILD=	yes
 WRKSRC=		${WRKDIR}/Glide2.4
diff --git a/japanese/slimeforest/Makefile b/japanese/slimeforest/Makefile
index 690a0820f344..62f19f8f2989 100644
--- a/japanese/slimeforest/Makefile
+++ b/japanese/slimeforest/Makefile
@@ -18,7 +18,6 @@ COMMENT=	A NES RPG game for learning KANA and KANJI (linux version)
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libSDL_image-1.2.so.0:${PORTSDIR}/graphics/linux-sdl_image
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 WRKSRC=		${WRKDIR}/slimeforest
 FIND_DIRS=		-type d \! -empty
diff --git a/java/linux-blackdown-jdk12/Makefile b/java/linux-blackdown-jdk12/Makefile
index 9e117e705ed1..6c0c7e7ae315 100644
--- a/java/linux-blackdown-jdk12/Makefile
+++ b/java/linux-blackdown-jdk12/Makefile
@@ -25,7 +25,6 @@ NO_CDROM=	"License doesn\'t allow distribution with fee"
 NO_PACKAGE=	"License doesn\'t allow binary distributions"
 LATEST_LINK=	linux-blackdown-jdk12
 
-USE_LINUX=	YES
 ONLY_FOR_ARCHS=	i386 amd64
 
 USE_BZIP2=	YES
diff --git a/java/linux-blackdown-jdk13/Makefile b/java/linux-blackdown-jdk13/Makefile
index 4f52f851c5b9..de20e61c79c5 100644
--- a/java/linux-blackdown-jdk13/Makefile
+++ b/java/linux-blackdown-jdk13/Makefile
@@ -30,7 +30,6 @@ PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///}
 NO_BUILD=	yes
 LATEST_LINK=	linux-blackdown-jdk13
 
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386 amd64
 
 JDK_VERSION=	1.3.1
diff --git a/java/linux-blackdown-jdk14/Makefile b/java/linux-blackdown-jdk14/Makefile
index c0328775485b..d1ab4947ff21 100644
--- a/java/linux-blackdown-jdk14/Makefile
+++ b/java/linux-blackdown-jdk14/Makefile
@@ -31,7 +31,6 @@ WRKSRC=		${WRKDIR}/j2sdk${PORTVERSION}
 PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///} PORTVERSION=${PORTVERSION}
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.4.2
 JDK_VER_SUFFIX=	-01
 DOWNLOAD_DIR=	${PORTNAME:U}-${JDK_VERSION}/${ARCH}/01
diff --git a/java/linux-blackdown-jre11/Makefile b/java/linux-blackdown-jre11/Makefile
index a957a8d58c55..b8f18a6f881c 100644
--- a/java/linux-blackdown-jre11/Makefile
+++ b/java/linux-blackdown-jre11/Makefile
@@ -26,7 +26,6 @@ RUN_DEPENDS=	javavm:${PORTSDIR}/java/javavmwrapper \
 NO_CDROM=	"License doesn\'t allow distribution with fee"
 NO_PACKAGE=     "License doesn\'t allow binary distributions"
 
-USE_LINUX=	YES
 ONLY_FOR_ARCHS=	i386 amd64
 
 USE_BZIP2=	YES
diff --git a/java/linux-ibm-jdk13/Makefile b/java/linux-ibm-jdk13/Makefile
index d084d99dcb39..0d560586a354 100644
--- a/java/linux-ibm-jdk13/Makefile
+++ b/java/linux-ibm-jdk13/Makefile
@@ -26,7 +26,6 @@ WRKSRC=		${WRKDIR}/${DISTNAME:S/-SDK//}
 PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///}
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.3.1
 LATEST_LINK=	linux-ibm-jdk13
 ONLY_FOR_ARCHS=	i386 amd64
diff --git a/java/linux-ibm-jdk14/Makefile b/java/linux-ibm-jdk14/Makefile
index de7316ba346b..aa07c205a41b 100644
--- a/java/linux-ibm-jdk14/Makefile
+++ b/java/linux-ibm-jdk14/Makefile
@@ -27,7 +27,6 @@ PLIST_SUB+=	PORTVERSION=${PORTVERSION}
 PLIST_SUB+=	PORTREVISION=${PORTREVISION}
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 USE_REINPLACE=	yes
 JDK_VERSION=	1.4.2
 ONLY_FOR_ARCHS=	i386 amd64
diff --git a/java/linux-sun-jdk12/Makefile b/java/linux-sun-jdk12/Makefile
index 959be0a965ea..6d8829eddc48 100644
--- a/java/linux-sun-jdk12/Makefile
+++ b/java/linux-sun-jdk12/Makefile
@@ -24,7 +24,6 @@ PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///}
 LATEST_LINK=	linux-sun-jdk12
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.2.2.017
 ONLY_FOR_ARCHS=	i386 amd64
 
diff --git a/java/linux-sun-jdk13/Makefile b/java/linux-sun-jdk13/Makefile
index 9233d54db12b..f090d19923c3 100644
--- a/java/linux-sun-jdk13/Makefile
+++ b/java/linux-sun-jdk13/Makefile
@@ -30,7 +30,6 @@ PLIST_SUB+=	T=${TARGET_DIR:S/^${PREFIX}\///} \
 		JDK_VERSION=${JDK_VERSION}
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.3.1
 JDK_REVISION=	14
 ONLY_FOR_ARCHS=	i386 amd64
diff --git a/java/linux-sun-jdk14/Makefile b/java/linux-sun-jdk14/Makefile
index 7e16f86db63e..d6f122297235 100644
--- a/java/linux-sun-jdk14/Makefile
+++ b/java/linux-sun-jdk14/Makefile
@@ -30,7 +30,6 @@ PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///} PORTVERSION=${PORTVERSION}
 PKGINSTALL=	${WRKDIR}/pkg-install
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.4.2
 JDK_REVISION=	07
 DL_JDK_VERSION=	${JDK_VERSION}_${JDK_REVISION}
diff --git a/java/linux-sun-jdk15/Makefile b/java/linux-sun-jdk15/Makefile
index 3092131847ab..518d43c346bc 100644
--- a/java/linux-sun-jdk15/Makefile
+++ b/java/linux-sun-jdk15/Makefile
@@ -30,7 +30,6 @@ PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///} PORTVERSION=${PORTVERSION}
 PKGINSTALL=	${WRKDIR}/pkg-install
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.5.0
 JDK_REVISION=	01
 DL_JDK_VERSION=	${JDK_VERSION}_${JDK_REVISION}
diff --git a/java/linux-sun-jdk16/Makefile b/java/linux-sun-jdk16/Makefile
index 3092131847ab..518d43c346bc 100644
--- a/java/linux-sun-jdk16/Makefile
+++ b/java/linux-sun-jdk16/Makefile
@@ -30,7 +30,6 @@ PLIST_SUB+=	T=${APP_HOME:S/^${PREFIX}\///} PORTVERSION=${PORTVERSION}
 PKGINSTALL=	${WRKDIR}/pkg-install
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 JDK_VERSION=	1.5.0
 JDK_REVISION=	01
 DL_JDK_VERSION=	${JDK_VERSION}_${JDK_REVISION}
diff --git a/korean/linux_locale/Makefile b/korean/linux_locale/Makefile
index 1b7723d3e89d..02b0c1db36f3 100644
--- a/korean/linux_locale/Makefile
+++ b/korean/linux_locale/Makefile
@@ -20,7 +20,7 @@ BUILD_DEPENDS=  ${LINUXBASE}/usr/share/locale/ko:${PORTSDIR}/emulators/linux_bas
 ONLY_FOR_ARCHS=	i386
 
 USE_LINUX_PREFIX=yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_MTREE=	yes
 NO_BUILD=	yes
 EXTRACT_ONLY=	# empty
diff --git a/lang/compaq-cc/Makefile b/lang/compaq-cc/Makefile
index 7244ded425d5..e767565034b4 100644
--- a/lang/compaq-cc/Makefile
+++ b/lang/compaq-cc/Makefile
@@ -42,7 +42,7 @@ NO_WRKSUBDIR=		yes
 NO_BUILD=		yes
 NO_FILTER_SHLIBS=	yes
 NO_MTREE=		yes
-USE_LINUX=		yes
+USE_LINUX?=		yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/lang/freetxl/Makefile b/lang/freetxl/Makefile
index 7e8e73f56e76..f7e5a843154d 100644
--- a/lang/freetxl/Makefile
+++ b/lang/freetxl/Makefile
@@ -14,7 +14,7 @@ DISTNAME=	txl${PORTVERSION}.linux
 MAINTAINER=	ryan@sasknow.com
 COMMENT=	The TXL Programming Language (transformation by example)
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 STRIP=
 NO_BUILD=	yes
 
diff --git a/lang/icc/Makefile b/lang/icc/Makefile
index 754c01311d46..6562f1f6cdf5 100644
--- a/lang/icc/Makefile
+++ b/lang/icc/Makefile
@@ -31,7 +31,7 @@ NO_CDROM=	${RESTRICTED}
 ONLY_FOR_ARCHS=		i386
 CONFLICTS=		linux_devtools*
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_REINPLACE=		yes
 NO_FILTER_SHLIBS=	yes
 
diff --git a/lang/icc7/Makefile b/lang/icc7/Makefile
index a5f15cf4cc69..2b53d3fc3c7b 100644
--- a/lang/icc7/Makefile
+++ b/lang/icc7/Makefile
@@ -25,7 +25,7 @@ NO_CDROM=	${RESTRICTED}
 ONLY_FOR_ARCHS=		i386
 CONFLICTS=		linux_devtools* ifc*
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_REINPLACE=		yes
 NO_WRKSUBDIR=		yes
 NO_FILTER_SHLIBS=	yes
diff --git a/lang/ifc/Makefile b/lang/ifc/Makefile
index 3e8f0d0ad9c0..e729f7935cd6 100644
--- a/lang/ifc/Makefile
+++ b/lang/ifc/Makefile
@@ -31,7 +31,7 @@ NO_CDROM=	${RESTRICTED}
 ONLY_FOR_ARCHS=		i386
 CONFLICTS=		linux_devtools*
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_REINPLACE=		yes
 NO_FILTER_SHLIBS=	yes
 
diff --git a/lang/ifc7/Makefile b/lang/ifc7/Makefile
index e03a2547d1c4..d5cb8fd02ad6 100644
--- a/lang/ifc7/Makefile
+++ b/lang/ifc7/Makefile
@@ -24,7 +24,7 @@ NO_CDROM=	${RESTRICTED}
 
 ONLY_FOR_ARCHS=		i386
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_REINPLACE=		yes
 NO_WRKSUBDIR=		yes
 NO_FILTER_SHLIBS=	yes
diff --git a/lang/linux-j/Makefile b/lang/linux-j/Makefile
index 79f93c81163e..91841a37b9e9 100644
--- a/lang/linux-j/Makefile
+++ b/lang/linux-j/Makefile
@@ -16,7 +16,7 @@ DIST_SUBDIR=    ${PORTNAME}/${PORTVERSION}
 MAINTAINER=	js@jeannot.org
 COMMENT=	A general purpose programming language
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_JAVA=	1.3+
 
 ONLY_FOR_ARCHS= i386
diff --git a/lang/visualworks/Makefile b/lang/visualworks/Makefile
index 74d71e8f1aa7..22f46ff08290 100644
--- a/lang/visualworks/Makefile
+++ b/lang/visualworks/Makefile
@@ -18,7 +18,7 @@ EXTRACT_ONLY=
 MAINTAINER=		chris@chrisburkert.de
 COMMENT=		A high performance Smalltalk environment
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 ONLY_FOR_ARCHS=		i386
 NO_BUILD=		yes
 PLIST_FILES=		bin/visual
diff --git a/mail/mulberry/Makefile b/mail/mulberry/Makefile
index 8b9ae4e7866f..dffa15c9e4d8 100644
--- a/mail/mulberry/Makefile
+++ b/mail/mulberry/Makefile
@@ -20,7 +20,6 @@ COMMENT=	A scalable high-performance GUI internet Mail User Agent
 
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 NO_WRKSUBDIR=	yes
 ONLY_FOR_ARCHS=	i386
diff --git a/math/dislin/Makefile b/math/dislin/Makefile
index db4fd1cf6827..29ca9d943ab3 100644
--- a/math/dislin/Makefile
+++ b/math/dislin/Makefile
@@ -19,7 +19,6 @@ COMMENT=	A scientific data plotting package
 
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386 alpha
 NO_BUILD=	yes
 INSTALLS_SHLIB=	yes
diff --git a/math/linux-dislin/Makefile b/math/linux-dislin/Makefile
index db4fd1cf6827..29ca9d943ab3 100644
--- a/math/linux-dislin/Makefile
+++ b/math/linux-dislin/Makefile
@@ -19,7 +19,6 @@ COMMENT=	A scientific data plotting package
 
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386 alpha
 NO_BUILD=	yes
 INSTALLS_SHLIB=	yes
diff --git a/math/linux-relview/Makefile b/math/linux-relview/Makefile
index 6a51ccc3b9d5..d6a659195797 100644
--- a/math/linux-relview/Makefile
+++ b/math/linux-relview/Makefile
@@ -18,7 +18,6 @@ COMMENT=	An interactive tool for manipulation of relations
 
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux-gtk
 
-USE_LINUX=	yes
 ONLY_FOR_ARCHS=	i386
 
 NO_WRKSUBDIR=	yes
diff --git a/math/mupad/Makefile b/math/mupad/Makefile
index f60919e5f632..0b1a17ad87de 100644
--- a/math/mupad/Makefile
+++ b/math/mupad/Makefile
@@ -20,7 +20,7 @@ COMMENT=	A sophisticated computer algebra system
 BROKEN=		Size mismatch
 NO_CDROM=	"unsure to sell for profit"
 
-USE_LINUX=		yes
+USE_LINUX?=		yes
 ONLY_FOR_ARCHS=		i386
 
 INSTALLS_SHLIB=		yes
diff --git a/math/wingz/Makefile b/math/wingz/Makefile
index 0170b467e11f..975b924b34b0 100644
--- a/math/wingz/Makefile
+++ b/math/wingz/Makefile
@@ -20,7 +20,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
 NO_WRKSUBDIR=	yes
 USE_X_PREFIX=	yes
 
diff --git a/math/wingz3/Makefile b/math/wingz3/Makefile
index 1532e355d721..d0f61b176af9 100644
--- a/math/wingz3/Makefile
+++ b/math/wingz3/Makefile
@@ -21,7 +21,6 @@ NO_PACKAGE=	"nothing to build. commercial software"
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 NO_BUILD=	yes
 
diff --git a/misc/ftree/Makefile b/misc/ftree/Makefile
index fdab850179a5..d4f217e13dff 100644
--- a/misc/ftree/Makefile
+++ b/misc/ftree/Makefile
@@ -19,7 +19,6 @@ COMMENT=	An X11 genealogy program
 
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 
 ONLY_FOR_ARCHS=	i386
diff --git a/misc/linux-edonkey-tool-list/Makefile b/misc/linux-edonkey-tool-list/Makefile
index 8f208f683aa7..cb4e0b0e672c 100644
--- a/misc/linux-edonkey-tool-list/Makefile
+++ b/misc/linux-edonkey-tool-list/Makefile
@@ -20,7 +20,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	Creates a web page with ed2k:// links to all your shared files
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 PLIST_FILES=	bin/edonkey-tool-list
diff --git a/misc/linux-edonkey-tool-recovermet/Makefile b/misc/linux-edonkey-tool-recovermet/Makefile
index 86512d25fb75..9235742dcca8 100644
--- a/misc/linux-edonkey-tool-recovermet/Makefile
+++ b/misc/linux-edonkey-tool-recovermet/Makefile
@@ -20,7 +20,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	Tool that tries to re-create x.part.met files compromised due to crash
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 PLIST_FILES=	bin/edonkey-tool-recovermet
diff --git a/misc/linux-opengroupware/Makefile b/misc/linux-opengroupware/Makefile
index 2cf673cf5304..9a0914c8731e 100644
--- a/misc/linux-opengroupware/Makefile
+++ b/misc/linux-opengroupware/Makefile
@@ -105,7 +105,7 @@ SET3=		postgresql-libs-7.2.4-5.80.i386.rpm \
 
 NGOBJWEB_ADAPTOR= opengroupware.org-mod_ngobjweb-200407092000.tar.gz
 PATCHDIR?=	${MASTERDIR}/files
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_GMAKE=	yes
 MAKEFILE=	${WRKSRC}/opengroupware.org-mod_ngobjweb/GNUmakefile
 BUILD_WRKSRC?=	${WRKSRC}/opengroupware.org-mod_ngobjweb
diff --git a/misc/opencyc/Makefile b/misc/opencyc/Makefile
index a53d6fe1efe0..adaac7516ee6 100644
--- a/misc/opencyc/Makefile
+++ b/misc/opencyc/Makefile
@@ -19,7 +19,6 @@ COMMENT=	General knowledge base and commonsense reasoning engine
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 PLIST_SUB=	PORTVERSION="${PORTVERSION}"
 
diff --git a/multimedia/linux-divx4linux/Makefile b/multimedia/linux-divx4linux/Makefile
index e4ad9dae3f41..ea99d0e27262 100644
--- a/multimedia/linux-divx4linux/Makefile
+++ b/multimedia/linux-divx4linux/Makefile
@@ -21,7 +21,7 @@ RESTRICTED=	unsure of licensing issues
 ONLY_FOR_ARCHS=	i386
 USE_REINPLACE=	yes
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 WRKSRC=	${WRKDIR}/${PORTNAME}-${RELEASE_DATE}
 NO_BUILD=	yes
 PLIST_SUB=	PKGNAME="${PKGNAME}"
diff --git a/multimedia/linux-divx4linux4/Makefile b/multimedia/linux-divx4linux4/Makefile
index 0fc175a878a2..447ee92a1dd9 100644
--- a/multimedia/linux-divx4linux4/Makefile
+++ b/multimedia/linux-divx4linux4/Makefile
@@ -21,7 +21,7 @@ RESTRICTED=	unsure of licensing issues
 
 ONLY_FOR_ARCHS=	i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=	yes
+USE_LINUX?=	yes
 USE_REINPLACE=	yes
 WRKSRC=	${WRKDIR}/${DISTNAME:C/_.+$//}
 NO_BUILD=	yes
diff --git a/multimedia/linux-divxplayer/Makefile b/multimedia/linux-divxplayer/Makefile
index a8df55abace5..e7cb5f255621 100644
--- a/multimedia/linux-divxplayer/Makefile
+++ b/multimedia/linux-divxplayer/Makefile
@@ -20,7 +20,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
 USE_X_PREFIX=	yes
 NO_BUILD=	yes
 STRIP=
diff --git a/multimedia/linux-realplayer/Makefile b/multimedia/linux-realplayer/Makefile
index 3b8a9963e9a4..6a4364930d9c 100644
--- a/multimedia/linux-realplayer/Makefile
+++ b/multimedia/linux-realplayer/Makefile
@@ -24,7 +24,6 @@ WRKSRC=		${WRKDIR}/usr/local/RealPlayer
 ONLY_FOR_ARCHS=	i386
 RESTRICTED=	"Redistribution not allowed"
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 # Linux binary should not be stripped by INSTALL_PROGRAM
 # because as a side effect it brands the binary as FreeBSD.
diff --git a/multimedia/linux-xmovie/Makefile b/multimedia/linux-xmovie/Makefile
index fdc061ecdf0f..467ecc9d72fc 100644
--- a/multimedia/linux-xmovie/Makefile
+++ b/multimedia/linux-xmovie/Makefile
@@ -22,7 +22,6 @@ EXTRACT_DEPENDS=rpm2cpio:${PORTSDIR}/archivers/rpm
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 EXTRACT_CMD=	rpm2cpio
 EXTRACT_BEFORE_ARGS=
 EXTRACT_AFTER_ARGS= | ${CPIO} -id --quiet
diff --git a/multimedia/mtv/Makefile b/multimedia/mtv/Makefile
index d74996b437b6..c96b9adf8db3 100644
--- a/multimedia/mtv/Makefile
+++ b/multimedia/mtv/Makefile
@@ -23,7 +23,6 @@ NO_CDROM=	"No redistribution"
 NO_BUILD=	yes
 NO_FILTER_SHLIBS=yes
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 WRKSRC=		${WRKDIR}/mtv
 
 MAN1=	mtv.1
diff --git a/multimedia/netshow/Makefile b/multimedia/netshow/Makefile
index b25855082bf8..30605f42b276 100644
--- a/multimedia/netshow/Makefile
+++ b/multimedia/netshow/Makefile
@@ -24,7 +24,6 @@ BROKEN=		Unfetchable
 ONLY_FOR_ARCHS=	i386
 PLIST_FILES=	bin/netshow
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 USE_X_PREFIX=	yes
 
diff --git a/net-im/aim/Makefile b/net-im/aim/Makefile
index c4ef5a7d5bc3..f4c3788f8cbf 100644
--- a/net-im/aim/Makefile
+++ b/net-im/aim/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux
 ONLY_FOR_ARCHS=	i386
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 INSTALLS_SHLIB=	yes
 # must not strip
diff --git a/net-im/skype-devel/Makefile b/net-im/skype-devel/Makefile
index 409c5117455d..af1f2f3c048e 100644
--- a/net-im/skype-devel/Makefile
+++ b/net-im/skype-devel/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libfontconfig.so.1:${PORTSDIR}/x11-fonts/linux
 
 USE_BZIP2=	yes
 PREFIX?=	${X11BASE}
-USE_LINUX=	yes
 WANT_GNOME=	yes
 ONLY_FOR_ARCHS=	i386
 
diff --git a/net-im/skype/Makefile b/net-im/skype/Makefile
index 409c5117455d..af1f2f3c048e 100644
--- a/net-im/skype/Makefile
+++ b/net-im/skype/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libfontconfig.so.1:${PORTSDIR}/x11-fonts/linux
 
 USE_BZIP2=	yes
 PREFIX?=	${X11BASE}
-USE_LINUX=	yes
 WANT_GNOME=	yes
 ONLY_FOR_ARCHS=	i386
 
diff --git a/net-im/skype20/Makefile b/net-im/skype20/Makefile
index 409c5117455d..af1f2f3c048e 100644
--- a/net-im/skype20/Makefile
+++ b/net-im/skype20/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libfontconfig.so.1:${PORTSDIR}/x11-fonts/linux
 
 USE_BZIP2=	yes
 PREFIX?=	${X11BASE}
-USE_LINUX=	yes
 WANT_GNOME=	yes
 ONLY_FOR_ARCHS=	i386
 
diff --git a/net-p2p/linux-agsatellite/Makefile b/net-p2p/linux-agsatellite/Makefile
index a2df25e0e13d..54eee9d32d2e 100644
--- a/net-p2p/linux-agsatellite/Makefile
+++ b/net-p2p/linux-agsatellite/Makefile
@@ -20,7 +20,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 
 WRKSRC=	${WRKDIR}/${DISTNAME:C/-.*//}
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 USE_REINPLACE=	yes
 STRIP=
diff --git a/net-p2p/linux-edonkey-core/Makefile b/net-p2p/linux-edonkey-core/Makefile
index 6fda23a509c9..d4b6c412bfeb 100644
--- a/net-p2p/linux-edonkey-core/Makefile
+++ b/net-p2p/linux-edonkey-core/Makefile
@@ -19,7 +19,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	eDonkey2000 'core' command line client
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 STRIP=
diff --git a/net-p2p/linux-edonkey-server/Makefile b/net-p2p/linux-edonkey-server/Makefile
index fffd87c540d3..50e4a36ce2b3 100644
--- a/net-p2p/linux-edonkey-server/Makefile
+++ b/net-p2p/linux-edonkey-server/Makefile
@@ -20,7 +20,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	A decentralized peer-to-peer file-sharing server (eDonkey2000 server)
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 STRIP=
diff --git a/net-p2p/linux-edonkey-tool-recovermet/Makefile b/net-p2p/linux-edonkey-tool-recovermet/Makefile
index 86512d25fb75..9235742dcca8 100644
--- a/net-p2p/linux-edonkey-tool-recovermet/Makefile
+++ b/net-p2p/linux-edonkey-tool-recovermet/Makefile
@@ -20,7 +20,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	Tool that tries to re-create x.part.met files compromised due to crash
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 PLIST_FILES=	bin/edonkey-tool-recovermet
diff --git a/net-p2p/linux-jigdo/Makefile b/net-p2p/linux-jigdo/Makefile
index 7776c2c0d8a8..ca49a96551eb 100644
--- a/net-p2p/linux-jigdo/Makefile
+++ b/net-p2p/linux-jigdo/Makefile
@@ -21,7 +21,7 @@ RUN_DEPENDS=	wget:${PORTSDIR}/ftp/wget
 
 ONLY_FOR_ARCHS=	i386
 USE_BZIP2=	YES
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 STRIP=
 
diff --git a/net-p2p/linux-overnet-core/Makefile b/net-p2p/linux-overnet-core/Makefile
index 524b77326502..512dd38ea104 100644
--- a/net-p2p/linux-overnet-core/Makefile
+++ b/net-p2p/linux-overnet-core/Makefile
@@ -18,7 +18,7 @@ MAINTAINER=	arundel@h3c.de
 COMMENT=	Overnet 'core' command line client
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 NO_WRKSUBDIR=	yes
 STRIP=
diff --git a/net-p2p/peercast/Makefile b/net-p2p/peercast/Makefile
index 7e2c7ef0cb94..64e0e931290a 100644
--- a/net-p2p/peercast/Makefile
+++ b/net-p2p/peercast/Makefile
@@ -15,7 +15,7 @@ EXTRACT_SUFX=	.tgz
 MAINTAINER=	jylefort@brutele.be
 COMMENT=	A peer-to-peer network for broadcasting and listening to streams
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 
 do-build:
diff --git a/net/aim/Makefile b/net/aim/Makefile
index c4ef5a7d5bc3..f4c3788f8cbf 100644
--- a/net/aim/Makefile
+++ b/net/aim/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux
 ONLY_FOR_ARCHS=	i386
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 INSTALLS_SHLIB=	yes
 # must not strip
diff --git a/net/citrix_ica/Makefile b/net/citrix_ica/Makefile
index a7885d00227f..1703390c944a 100644
--- a/net/citrix_ica/Makefile
+++ b/net/citrix_ica/Makefile
@@ -23,7 +23,6 @@ IS_INTERACTIVE=	"Noisy license agreement ignores stdin"
 
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 CDIR=		${PREFIX}/ICAClient
 BINDIR=		${PREFIX}/bin
diff --git a/net/citrix_xenapp/Makefile b/net/citrix_xenapp/Makefile
index a7885d00227f..1703390c944a 100644
--- a/net/citrix_xenapp/Makefile
+++ b/net/citrix_xenapp/Makefile
@@ -23,7 +23,6 @@ IS_INTERACTIVE=	"Noisy license agreement ignores stdin"
 
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 
 CDIR=		${PREFIX}/ICAClient
 BINDIR=		${PREFIX}/bin
diff --git a/net/linux-agsatellite/Makefile b/net/linux-agsatellite/Makefile
index a2df25e0e13d..54eee9d32d2e 100644
--- a/net/linux-agsatellite/Makefile
+++ b/net/linux-agsatellite/Makefile
@@ -20,7 +20,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XF
 
 WRKSRC=	${WRKDIR}/${DISTNAME:C/-.*//}
 
-USE_LINUX=	yes
 NO_BUILD=	yes
 USE_REINPLACE=	yes
 STRIP=
diff --git a/net/linux-edonkey-core/Makefile b/net/linux-edonkey-core/Makefile
index 6fda23a509c9..d4b6c412bfeb 100644
--- a/net/linux-edonkey-core/Makefile
+++ b/net/linux-edonkey-core/Makefile
@@ -19,7 +19,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	eDonkey2000 'core' command line client
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 STRIP=
diff --git a/net/linux-edonkey-gui-gtk/Makefile b/net/linux-edonkey-gui-gtk/Makefile
index 85dd0cbecf06..812e507bea04 100644
--- a/net/linux-edonkey-gui-gtk/Makefile
+++ b/net/linux-edonkey-gui-gtk/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	donkey:${PORTSDIR}/net/linux-edonkey-core \
 		${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux-gtk
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
diff --git a/net/linux-edonkey-server/Makefile b/net/linux-edonkey-server/Makefile
index fffd87c540d3..50e4a36ce2b3 100644
--- a/net/linux-edonkey-server/Makefile
+++ b/net/linux-edonkey-server/Makefile
@@ -20,7 +20,7 @@ MAINTAINER=	lioux@FreeBSD.org
 COMMENT=	A decentralized peer-to-peer file-sharing server (eDonkey2000 server)
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
 STRIP=
diff --git a/net/linux-jigdo/Makefile b/net/linux-jigdo/Makefile
index 7776c2c0d8a8..ca49a96551eb 100644
--- a/net/linux-jigdo/Makefile
+++ b/net/linux-jigdo/Makefile
@@ -21,7 +21,7 @@ RUN_DEPENDS=	wget:${PORTSDIR}/ftp/wget
 
 ONLY_FOR_ARCHS=	i386
 USE_BZIP2=	YES
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 STRIP=
 
diff --git a/net/linux-nx-client/Makefile b/net/linux-nx-client/Makefile
index bd0d3ffc84be..a74e1c7c7c10 100644
--- a/net/linux-nx-client/Makefile
+++ b/net/linux-nx-client/Makefile
@@ -18,7 +18,6 @@ RUN_DEPENDS=		${LINUXBASE}/usr/lib/libjpeg.so.62:${PORTSDIR}/graphics/linux-jpeg
 
 NO_WRKSUBDIR=		yes
 USE_X_PREFIX=		yes
-USE_LINUX=		yes
 ONLY_FOR_ARCHS=		i386
 NO_BUILD=		yes
 
diff --git a/net/linux-overnet-core/Makefile b/net/linux-overnet-core/Makefile
index 524b77326502..512dd38ea104 100644
--- a/net/linux-overnet-core/Makefile
+++ b/net/linux-overnet-core/Makefile
@@ -18,7 +18,7 @@ MAINTAINER=	arundel@h3c.de
 COMMENT=	Overnet 'core' command line client
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_BUILD=	yes
 NO_WRKSUBDIR=	yes
 STRIP=
diff --git a/net/peercast/Makefile b/net/peercast/Makefile
index 7e2c7ef0cb94..64e0e931290a 100644
--- a/net/peercast/Makefile
+++ b/net/peercast/Makefile
@@ -15,7 +15,7 @@ EXTRACT_SUFX=	.tgz
 MAINTAINER=	jylefort@brutele.be
 COMMENT=	A peer-to-peer network for broadcasting and listening to streams
 
-USE_LINUX=	yes
+USE_LINUX?=	yes
 NO_WRKSUBDIR=	yes
 
 do-build:
diff --git a/net/skype-devel/Makefile b/net/skype-devel/Makefile
index 409c5117455d..af1f2f3c048e 100644
--- a/net/skype-devel/Makefile
+++ b/net/skype-devel/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libfontconfig.so.1:${PORTSDIR}/x11-fonts/linux
 
 USE_BZIP2=	yes
 PREFIX?=	${X11BASE}
-USE_LINUX=	yes
 WANT_GNOME=	yes
 ONLY_FOR_ARCHS=	i386
 
diff --git a/net/skype/Makefile b/net/skype/Makefile
index 409c5117455d..af1f2f3c048e 100644
--- a/net/skype/Makefile
+++ b/net/skype/Makefile
@@ -21,7 +21,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libfontconfig.so.1:${PORTSDIR}/x11-fonts/linux
 
 USE_BZIP2=	yes
 PREFIX?=	${X11BASE}
-USE_LINUX=	yes
 WANT_GNOME=	yes
 ONLY_FOR_ARCHS=	i386
 
diff --git a/portuguese/staroffice52/Makefile b/portuguese/staroffice52/Makefile
index 5553b19133e7..b153e7f65fd6 100644
--- a/portuguese/staroffice52/Makefile
+++ b/portuguese/staroffice52/Makefile
@@ -35,7 +35,6 @@ NO_CDROM=	'Deve ser obtido diretamente do site da Sun via interface www'
 CD_MOUNTPT=	'/cdrom'
 IS_INTERACTIVE=	yes
 NO_BUILD=	yes
-USE_LINUX=	yes
 USE_PERL5_BUILD=yes
 DIST_SUBDIR=	staroffice52
 WRKSRC=		${WRKDIR}/office52
diff --git a/print/acroread/Makefile b/print/acroread/Makefile
index bc4ede393520..0540f2e22820 100644
--- a/print/acroread/Makefile
+++ b/print/acroread/Makefile
@@ -21,7 +21,6 @@ COMMENT=	View, distribute and print PDF documents
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libX11.so.6:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	amd64 i386
-USE_LINUX=	yes
 USE_REINPLACE=	yes
 NO_BUILD=	yes
 REINPLACE_ARGS=	-i '' -E
diff --git a/print/bjfiltercom/Makefile b/print/bjfiltercom/Makefile
index 3a9d8ae530ad..d85be59ac1ee 100644
--- a/print/bjfiltercom/Makefile
+++ b/print/bjfiltercom/Makefile
@@ -31,7 +31,6 @@ RUN_DEPENDS=	${LINUXBASE}/usr/lib/libxml.so.1:${PORTSDIR}/textproc/linux-libxml
 		${LINUXBASE}/usr/lib/libgtk-1.2.so.0:${PORTSDIR}/x11-toolkits/linux-gtk
 
 BIN_FILES=	bjcmd  bjfilter  bjprn  lgmon  printui  stsmon
-USE_LINUX=	yes
 .endif
 
 EXTRACT_CMD=	rpm2cpio.pl
diff --git a/sysutils/linux-acu/Makefile b/sysutils/linux-acu/Makefile
index 6da6aedbaa17..6c90599fcbd9 100644
--- a/sysutils/linux-acu/Makefile
+++ b/sysutils/linux-acu/Makefile
@@ -30,7 +30,6 @@ IGNORE=		may not be automatically fetched due to licensing\
 .endif
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 NO_WRKSUBDIR=	yes
 NO_BUILD=	yes
diff --git a/sysutils/linux-afaapps/Makefile b/sysutils/linux-afaapps/Makefile
index cecdea336f7e..b8880dd222ab 100644
--- a/sysutils/linux-afaapps/Makefile
+++ b/sysutils/linux-afaapps/Makefile
@@ -24,7 +24,6 @@ RESTRICTED=		"binary redistribution license needs clarification"
 NO_BUILD=		yes
 NO_WRKSUBDIR=		yes
 
-USE_LINUX=		yes
 USE_LINUX_PREFIX=	yes
 NO_MTREE=		yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/textproc/linux-aspell/Makefile b/textproc/linux-aspell/Makefile
index 98ddc6758a62..f67f424cf82b 100644
--- a/textproc/linux-aspell/Makefile
+++ b/textproc/linux-aspell/Makefile
@@ -28,7 +28,7 @@ NO_BUILD=		yes
 USE_REINPLACE=		yes
 ONLY_FOR_ARCHS=		i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_GMAKE=		yes
 NO_FILTER_SHLIBS=	yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/textproc/linux-f10-aspell/Makefile b/textproc/linux-f10-aspell/Makefile
index 98ddc6758a62..f67f424cf82b 100644
--- a/textproc/linux-f10-aspell/Makefile
+++ b/textproc/linux-f10-aspell/Makefile
@@ -28,7 +28,7 @@ NO_BUILD=		yes
 USE_REINPLACE=		yes
 ONLY_FOR_ARCHS=		i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_GMAKE=		yes
 NO_FILTER_SHLIBS=	yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/textproc/linux-f8-aspell/Makefile b/textproc/linux-f8-aspell/Makefile
index 98ddc6758a62..f67f424cf82b 100644
--- a/textproc/linux-f8-aspell/Makefile
+++ b/textproc/linux-f8-aspell/Makefile
@@ -28,7 +28,7 @@ NO_BUILD=		yes
 USE_REINPLACE=		yes
 ONLY_FOR_ARCHS=		i386
 USE_LINUX_PREFIX=	yes
-USE_LINUX=		yes
+USE_LINUX?=		yes
 USE_GMAKE=		yes
 NO_FILTER_SHLIBS=	yes
 LDCONFIG_LINUX=		${LINUXBASE}/sbin/ldconfig
diff --git a/textproc/pocketreader/Makefile b/textproc/pocketreader/Makefile
index afacd275bf28..df639a333b80 100644
--- a/textproc/pocketreader/Makefile
+++ b/textproc/pocketreader/Makefile
@@ -16,7 +16,7 @@ EXTRACT_SUFX=	_tar.gz
 MAINTAINER=	simond@irrelevant.org
 COMMENT=	Siemens PocketReader
 
-USE_LINUX=	YES
+USE_LINUX?=	YES
 NO_BUILD=	YES
 PLIST_FILES=	bin/pocketreader
 
diff --git a/www/aswedit/Makefile b/www/aswedit/Makefile
index 9bd4fd136c56..dd3f7a7bbc9e 100644
--- a/www/aswedit/Makefile
+++ b/www/aswedit/Makefile
@@ -22,7 +22,6 @@ NO_BUILD=	yes
 
 ONLY_FOR_ARCHS=	i386
 
-USE_LINUX=	yes
 WRKSRC=		${WRKDIR}/asWedit-4.0.1
 
 do-install:
diff --git a/www/linux-beonex/Makefile b/www/linux-beonex/Makefile
index 6b21c90744c8..ecba463f02a9 100644
--- a/www/linux-beonex/Makefile
+++ b/www/linux-beonex/Makefile
@@ -33,7 +33,6 @@ PATCHFILES=	linux-beonex-generated-files-${PORTVERSION}.tar.bz2
 PKGMESSAGE=	${WRKDIR}/pkg-message
 PLIST=		${WRKDIR}/pkg-plist
 USE_BZIP2=	yes
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 WRKSRC=		${WRKDIR}/beonex-comm
 
diff --git a/www/linux-firefox/Makefile b/www/linux-firefox/Makefile
index e125d9328423..4b74899f2c2d 100644
--- a/www/linux-firefox/Makefile
+++ b/www/linux-firefox/Makefile
@@ -27,7 +27,6 @@ DESCR=		${.CURDIR}/pkg-descr
 MD5_FILE=	${.CURDIR}/distinfo
 PKGMESSAGE=	${WRKDIR}/pkg-message
 PLIST=		${WRKDIR}/pkg-plist
-USE_LINUX=	yes
 USE_XLIB=	yes
 USE_X_PREFIX=	yes
 WRKSRC=		${WRKDIR}/MozillaFirebird
diff --git a/www/linux-flashplugin/Makefile b/www/linux-flashplugin/Makefile
index f99e1b1539df..5f6e2b897e42 100644
--- a/www/linux-flashplugin/Makefile
+++ b/www/linux-flashplugin/Makefile
@@ -20,7 +20,6 @@ COMMENT=	The official Macromedia Flash Player for Linux Netscape and Opera
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 
 RESTRICTED=	"Redistribution not allowed"
 
diff --git a/www/linux-flashplugin6/Makefile b/www/linux-flashplugin6/Makefile
index 9cce9ddbd88a..6bb67423d8e0 100644
--- a/www/linux-flashplugin6/Makefile
+++ b/www/linux-flashplugin6/Makefile
@@ -20,7 +20,6 @@ COMMENT=	The official Macromedia Flash Player for Linux Mozilla and Netscape 6+
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 
 RESTRICTED=	"Redistribution not allowed"
 
diff --git a/www/linux-flashplugin7/Makefile b/www/linux-flashplugin7/Makefile
index f85e9235636c..19c727e56eb7 100644
--- a/www/linux-flashplugin7/Makefile
+++ b/www/linux-flashplugin7/Makefile
@@ -20,7 +20,6 @@ COMMENT=	The official Macromedia Flash Player for Linux Mozilla and Netscape 6+
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 
 RESTRICTED=	"Redistribution not allowed"
 
diff --git a/www/linux-flashplugin9/Makefile b/www/linux-flashplugin9/Makefile
index f85e9235636c..19c727e56eb7 100644
--- a/www/linux-flashplugin9/Makefile
+++ b/www/linux-flashplugin9/Makefile
@@ -20,7 +20,6 @@ COMMENT=	The official Macromedia Flash Player for Linux Mozilla and Netscape 6+
 RUN_DEPENDS=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 
 ONLY_FOR_ARCHS=	i386
-USE_LINUX=	yes
 
 RESTRICTED=	"Redistribution not allowed"
 
diff --git a/www/linux-mozilla-devel/Makefile b/www/linux-mozilla-devel/Makefile
index c38136a4b6a8..b74f89b6a482 100644
--- a/www/linux-mozilla-devel/Makefile
+++ b/www/linux-mozilla-devel/Makefile
@@ -27,7 +27,6 @@ NO_FILTER_SHLIBS=	yes
 ONLY_FOR_ARCHS=	i386
 PREFIX?=	${X11BASE}
 USE_ZIP=	yes
-USE_LINUX=	yes
 WRKSRC=	${WRKDIR}/xpi
 INSTALL_DIR=	linux-mozilla-devel
 FULL_INSTALL_DIR=	${PREFIX}/lib/linux-mozilla-devel
diff --git a/www/linux-mozilla/Makefile b/www/linux-mozilla/Makefile
index b04fb7728b0b..91be5e90cba0 100644
--- a/www/linux-mozilla/Makefile
+++ b/www/linux-mozilla/Makefile
@@ -25,7 +25,6 @@ NO_FILTER_SHLIBS=	yes
 ONLY_FOR_ARCHS=	i386
 PREFIX?=	${X11BASE}
 USE_ZIP=	yes
-USE_LINUX=	yes
 WRKSRC=	${WRKDIR}/xpi
 INSTALL_DIR=	${PREFIX}/lib/linux-mozilla
 PKGMESSAGE=	${WRKDIR}/pkg-message
diff --git a/www/linux-mozillafirebird/Makefile b/www/linux-mozillafirebird/Makefile
index dce6313709db..733dfe8309cd 100644
--- a/www/linux-mozillafirebird/Makefile
+++ b/www/linux-mozillafirebird/Makefile
@@ -28,7 +28,6 @@ DESCR=		${.CURDIR}/pkg-descr
 MD5_FILE=	${.CURDIR}/distinfo
 PKGMESSAGE=	${WRKDIR}/pkg-message
 PLIST=		${WRKDIR}/pkg-plist
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 WRKSRC=		${WRKDIR}/MozillaFirebird
 
diff --git a/www/netscape7/Makefile b/www/netscape7/Makefile
index 6b925e3c7df2..133ceffec7ac 100644
--- a/www/netscape7/Makefile
+++ b/www/netscape7/Makefile
@@ -30,7 +30,6 @@ NO_FILTER_SHLIBS=	yes
 ONLY_FOR_ARCHS=	i386
 RESTRICTED=	"no redistribution"
 NO_CDROM=	${RESTRICTED}
-USE_LINUX=	yes
 PREFIX?=	${X11BASE}
 USE_ZIP=	yes
 VER?=		${PORTVERSION}
diff --git a/x11-toolkits/linux-f10-gtk/Makefile b/x11-toolkits/linux-f10-gtk/Makefile
index dcb95294c560..7e5ae5708641 100644
--- a/x11-toolkits/linux-f10-gtk/Makefile
+++ b/x11-toolkits/linux-f10-gtk/Makefile
@@ -31,7 +31,6 @@ USE_LINUX_PREFIX=	yes
 ARCH=		i386
 RPMFLAGS+=	--ignorearch
 .endif
-USE_LINUX=	yes
 DIST_SUBDIR?=	rpm
 EXTRACT_ONLY=
 NO_BUILD=	yes
diff --git a/x11-toolkits/linux-f8-gtk/Makefile b/x11-toolkits/linux-f8-gtk/Makefile
index dcb95294c560..7e5ae5708641 100644
--- a/x11-toolkits/linux-f8-gtk/Makefile
+++ b/x11-toolkits/linux-f8-gtk/Makefile
@@ -31,7 +31,6 @@ USE_LINUX_PREFIX=	yes
 ARCH=		i386
 RPMFLAGS+=	--ignorearch
 .endif
-USE_LINUX=	yes
 DIST_SUBDIR?=	rpm
 EXTRACT_ONLY=
 NO_BUILD=	yes
diff --git a/x11-toolkits/linux-gtk/Makefile b/x11-toolkits/linux-gtk/Makefile
index dcb95294c560..7e5ae5708641 100644
--- a/x11-toolkits/linux-gtk/Makefile
+++ b/x11-toolkits/linux-gtk/Makefile
@@ -31,7 +31,6 @@ USE_LINUX_PREFIX=	yes
 ARCH=		i386
 RPMFLAGS+=	--ignorearch
 .endif
-USE_LINUX=	yes
 DIST_SUBDIR?=	rpm
 EXTRACT_ONLY=
 NO_BUILD=	yes
diff --git a/x11/linux-XFree86-libs/Makefile b/x11/linux-XFree86-libs/Makefile
index 27536f0db694..cfddab729860 100644
--- a/x11/linux-XFree86-libs/Makefile
+++ b/x11/linux-XFree86-libs/Makefile
@@ -26,7 +26,6 @@ BUILD_DEPENDS=	rpm:${PORTSDIR}/archivers/rpm
 RUN_DEPENDS=	${LINUXBASE}/usr/lib/libfontconfig.so.1:${PORTSDIR}/x11-fonts/linux-fontconfig
 
 CONFLICTS=	linux_base-6* linux_base-7* linux_base-deb*
-USE_LINUX=	yes
 USE_LINUX_PREFIX=yes
 MD5_FILE=	${MASTERDIR}/distinfo.i386
 NO_BUILD=	yes
diff --git a/x11/nvidia-driver/Makefile b/x11/nvidia-driver/Makefile
index b0c5ae93d9e8..e43bd7f5bd5b 100644
--- a/x11/nvidia-driver/Makefile
+++ b/x11/nvidia-driver/Makefile
@@ -41,7 +41,7 @@ PLIST_SUB=	XSERVVERSION=${XSERVVERSION} XLIBVERSION=${XLIBVERSION} \
 		LINUXBASE=${LINUXBASE} NVVERSION=${NVVERSION}
 
 .if !defined(WITHOUT_LINUX)
-USE_LINUX=	yes
+USE_LINUX?=	yes
 RUN_DEPENDS+=	${LINUXBASE}/usr/X11R6/lib/libXrender.so.1:${PORTSDIR}/x11/linux-XFree86-libs
 PLIST_SUB+=	LINUX=""
 .else