- Mark MAKE_JOBS_UNSAFE

Reported by:	pointyhat

103 files changed, 107 insertions, 1 deletions

diff --git a/archivers/kbackup/Makefile b/archivers/kbackup/Makefile
index 66b2a7156c9a..1fae50265273 100644
--- a/archivers/kbackup/Makefile
+++ b/archivers/kbackup/Makefile
@@ -22,6 +22,7 @@ USE_GMAKE=	yes
 USE_GETTEXT=	yes
 USE_KDELIBS_VER=3
 INSTALLS_ICONS=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 
diff --git a/audio/libjackasyn/Makefile b/audio/libjackasyn/Makefile
index 57308ddfe8c7..fb514c41f704 100644
--- a/audio/libjackasyn/Makefile
+++ b/audio/libjackasyn/Makefile
@@ -30,6 +30,7 @@ MAKE_ENV=	LDFLAGS="${LDFLAGS}" CPPFLAGS="${CFLAGS}"
 CONFIGURE_ARGS=	--prefix=${PREFIX}
 CONFIGURE_ENV+=	CC="${CC}" CXX="${CXX}" LDFLAGS="${LDFLAGS}"
 MAKE_ENV=	LDFLAGS="${LDFLAGS}" CPPFLAGS="${CXXFLAGS}"
+MAKE_JOBS_UNSAFE=	yes
 
 SUB_FILES=	pkg-message
 MAN1=	jacklaunch.1
diff --git a/audio/pd/Makefile b/audio/pd/Makefile
index 8d14e03ca3f1..f3cd8cf8d508 100644
--- a/audio/pd/Makefile
+++ b/audio/pd/Makefile
@@ -25,6 +25,7 @@ USE_GMAKE=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
 MAKEFILE=	makefile
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		pd.1 pdreceive.1 pdsend.1
 
diff --git a/audio/praat/Makefile b/audio/praat/Makefile
index f62a955afdac..fa650fadcdb4 100644
--- a/audio/praat/Makefile
+++ b/audio/praat/Makefile
@@ -22,6 +22,7 @@ USE_MOTIF=	yes
 WRKSRC=		${WRKDIR}/sources_4639
 MAKEFILE=	makefile
 PLIST_FILES=	bin/praat
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		praat.1
 
diff --git a/benchmarks/nbench/Makefile b/benchmarks/nbench/Makefile
index 555556366ca8..a18f31085110 100644
--- a/benchmarks/nbench/Makefile
+++ b/benchmarks/nbench/Makefile
@@ -15,6 +15,7 @@ MAINTAINER=	steinex@nognu.de
 COMMENT=	BYTE Magazine's native benchmarks
 
 ALL_TARGET=	# empty
+MAKE_JOBS_UNSAFE=	yes
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/nbench ${PREFIX}/bin
diff --git a/benchmarks/pathchirp/Makefile b/benchmarks/pathchirp/Makefile
index 37d9c5d6823a..25023fe6a705 100644
--- a/benchmarks/pathchirp/Makefile
+++ b/benchmarks/pathchirp/Makefile
@@ -15,6 +15,7 @@ COMMENT=	A measurement tool for available bandwidth estimation
 
 GNU_CONFIGURE=	yes
 USE_GMAKE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	bin/pathchirp_rcv bin/pathchirp_snd bin/pathchirp_run
 PORTDOCS=	README
diff --git a/benchmarks/pathload/Makefile b/benchmarks/pathload/Makefile
index 788376be6eaf..dbff01bf2207 100644
--- a/benchmarks/pathload/Makefile
+++ b/benchmarks/pathload/Makefile
@@ -19,6 +19,7 @@ USE_GMAKE=	yes
 
 WRKSRC=		${WRKDIR}/${PORTNAME}_${PORTVERSION}
 MAKEFILE=	makefile
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	bin/pathload_rcv bin/pathload_snd
 
diff --git a/biology/libsbml/Makefile b/biology/libsbml/Makefile
index 35c26f6cf234..03db57bdf67f 100644
--- a/biology/libsbml/Makefile
+++ b/biology/libsbml/Makefile
@@ -25,6 +25,7 @@ USE_ZIP=	yes
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 .if defined(WITH_PYTHON)
diff --git a/biology/mapm3/Makefile b/biology/mapm3/Makefile
index d0f9634ce1a4..cf5d4d61354d 100644
--- a/biology/mapm3/Makefile
+++ b/biology/mapm3/Makefile
@@ -19,6 +19,7 @@ MAINTAINER=	tphilipp@potion-studios.com
 COMMENT=	Constructs linkage maps of markers segregating in experimental crosses
 
 NO_WRKSUBDIR=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	${CP} ${WRKSRC}/sun/* ${WRKSRC}
diff --git a/cad/leocad/Makefile b/cad/leocad/Makefile
index ec4ed73c5228..83e1ebd5130d 100644
--- a/cad/leocad/Makefile
+++ b/cad/leocad/Makefile
@@ -25,6 +25,7 @@ USE_GL=		glut
 USE_XORG=	x11
 USE_GMAKE=	yes
 USE_GNOME=	gtk12
+MAKE_JOBS_UNSAFE=	yes
 
 post-extract:
 	@${UNZIP_CMD} -q -o ${DISTDIR}/leocad-pieces-20030330.zip -d ${WRKDIR}/pieces
diff --git a/cad/mars/Makefile b/cad/mars/Makefile
index 1b01963f85ed..93cf43d11264 100644
--- a/cad/mars/Makefile
+++ b/cad/mars/Makefile
@@ -19,6 +19,8 @@ EXTRACT_ONLY=	${DISTNAME}${EXTRACT_SUFX}
 MAINTAINER=	gahr@FreeBSD.org
 COMMENT=	Maryland Routing Simulator
 
+MAKE_JOBS_UNSAFE=	yes
+
 OPTIONS=	X11 "Build with X11 support via Motif" on
 
 .include <bsd.port.pre.mk>
diff --git a/comms/mgetty+sendfax/Makefile b/comms/mgetty+sendfax/Makefile
index 5f577bdf1e4f..446b6bb0b720 100644
--- a/comms/mgetty+sendfax/Makefile
+++ b/comms/mgetty+sendfax/Makefile
@@ -67,6 +67,7 @@ MLINKS=		pvf.1 pvfamp.1 \
 		pvf.1 rmdtopvf.1 \
 		pvf.1 voctopvf.1 \
 		pvf.1 wavtopvf.1
+MAKE_JOBS_UNSAFE=	yes
 
 CFLAGS+=	-DAUTO_PPP
 .if defined(WITH_FIDO) && ${WITH_FIDO:L} != no
diff --git a/databases/kpogre/Makefile b/databases/kpogre/Makefile
index fb921feebe68..6a80a3b044eb 100644
--- a/databases/kpogre/Makefile
+++ b/databases/kpogre/Makefile
@@ -22,6 +22,7 @@ USE_AUTOTOOLS=	libtool:22
 GNU_CONFIGURE=	yes
 USE_GMAKE=	yes
 USE_PGSQL=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	${REINPLACE_CMD} -e '/kde_appsdir/s|applnk||g' ${WRKSRC}/configure
diff --git a/databases/ocaml-sqlite3/Makefile b/databases/ocaml-sqlite3/Makefile
index 5a253ada4a03..9c59e847480c 100644
--- a/databases/ocaml-sqlite3/Makefile
+++ b/databases/ocaml-sqlite3/Makefile
@@ -20,6 +20,7 @@ USE_OCAML=		yes
 USE_OCAML_FINDLIB=	yes
 USE_OCAML_LDCONFIG=	yes
 USE_OCAML_PLIST=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	CC="${CC}"\
diff --git a/databases/p5-qdbm/Makefile b/databases/p5-qdbm/Makefile
index 3a831e9a19c1..e9dcc808d8f6 100644
--- a/databases/p5-qdbm/Makefile
+++ b/databases/p5-qdbm/Makefile
@@ -18,4 +18,6 @@ PLIST=		${.CURDIR}/pkg-plist
 DESCR=		${.CURDIR}/pkg-descr
 PATCHDIR=	${.CURDIR}/files
 
+MAKE_JOBS_UNSAFE=	yes
+
 .include "${MASTERDIR}/Makefile"
diff --git a/databases/postgis/Makefile b/databases/postgis/Makefile
index ef247a8f9438..3546454f9e0d 100644
--- a/databases/postgis/Makefile
+++ b/databases/postgis/Makefile
@@ -31,6 +31,7 @@ GNU_CONFIGURE=	yes
 CFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 MAKE_ENV=	DATADIR=${DATADIR} DOCSDIR=${DOCSDIR}
+MAKE_JOBS_UNSAFE=	yes
 CONFIGURE_ARGS=	--with-projdir=${LOCALBASE}
 
 .include <bsd.port.pre.mk>
diff --git a/deskutils/kickpim/Makefile b/deskutils/kickpim/Makefile
index 4da5eb40129b..8e092b3f795d 100644
--- a/deskutils/kickpim/Makefile
+++ b/deskutils/kickpim/Makefile
@@ -19,6 +19,7 @@ USE_GMAKE=		yes
 USE_AUTOTOOLS=		libtool:22
 USE_LDCONFIG=		yes
 CONFIGURE_ENV=		LDFLAGS="${PTHREAD_LIBS}"
+MAKE_JOBS_UNSAFE=	yes
 
 post-extract:
 	@${TOUCH} ${WRKSRC}/config.h.in
diff --git a/deskutils/multisync/Makefile b/deskutils/multisync/Makefile
index 30cec23117c8..06bddcbf85ee 100644
--- a/deskutils/multisync/Makefile
+++ b/deskutils/multisync/Makefile
@@ -21,6 +21,7 @@ USE_GNOME=	gnomehack gnomeprefix libgnomeui
 USE_GMAKE=	yes
 USE_AUTOTOOLS=	automake:19:env libtool:22
 CONFIGURE_ENV+=	CPPFLAGS="-I${LOCALBASE}/include" LIBS="-L${LOCALBASE}/lib"
+MAKE_JOBS_UNSAFE=	yes
 
 pre-configure:
 	@${FIND} ${WRKDIR} -type l -delete
diff --git a/devel/judy/Makefile b/devel/judy/Makefile
index 002ad17daebf..f71c150b0bd9 100644
--- a/devel/judy/Makefile
+++ b/devel/judy/Makefile
@@ -16,6 +16,7 @@ COMMENT=	General purpose dynamic array
 GNU_CONFIGURE=	yes
 USE_GMAKE=	YES
 USE_LDCONFIG=	YES
+MAKE_JOBS_UNSAFE=	yes
 
 WRKSRC=	${WRKDIR}/${PORTNAME:L}-${PORTVERSION}
 
diff --git a/devel/kimwitu/Makefile b/devel/kimwitu/Makefile
index 9c5c68d7e41c..8928697a339f 100644
--- a/devel/kimwitu/Makefile
+++ b/devel/kimwitu/Makefile
@@ -17,6 +17,7 @@ COMMENT=	A tool for processing trees (i.e. terms)
 
 WRKSRC=		${WRKDIR}/${DISTNAME}/src
 ALL_TARGET=
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		kc.1
 PLIST_FILES=	bin/kc
diff --git a/devel/lbpp/Makefile b/devel/lbpp/Makefile
index 48d4196efe01..fa2947acfc28 100644
--- a/devel/lbpp/Makefile
+++ b/devel/lbpp/Makefile
@@ -18,6 +18,7 @@ COMMENT=	A front end to GCC from Liberty Basic source code
 USE_BZIP2=	yes
 USE_GMAKE=	yes
 USE_GNOME=	gnomelibs
+MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	@${GREP} -lR "malloc.h" ${WRKSRC} | ${XARGS} \
diff --git a/devel/libbegemot/Makefile b/devel/libbegemot/Makefile
index faffaa5fa33c..51eb228051e3 100644
--- a/devel/libbegemot/Makefile
+++ b/devel/libbegemot/Makefile
@@ -19,7 +19,7 @@ GNU_CONFIGURE=	yes
 USE_GMAKE=	yes
 USE_AUTOTOOLS=	automake:19:env autoconf:262:env libltdl:22 libtool:22
 USE_LDCONFIG=	yes
-
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=	cstrc.1 frame.1 getfields.1 intro.1 panic.1 prstat.1 readline.1 \
 		rpoll.1 strnchr.1 strnlen.1 strsave.1 strtrimsp.1 verb.1 xalloc.1
diff --git a/devel/libcapsinetwork/Makefile b/devel/libcapsinetwork/Makefile
index 39e957e870ab..aaf288d54a88 100644
--- a/devel/libcapsinetwork/Makefile
+++ b/devel/libcapsinetwork/Makefile
@@ -16,5 +16,6 @@ COMMENT=	Network library aimed at easy development of C++ server daemons
 USE_AUTOTOOLS=	libtool:22
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/libchipcard-kde/Makefile b/devel/libchipcard-kde/Makefile
index 1ac6e9c84dbd..41e3e0cb243c 100644
--- a/devel/libchipcard-kde/Makefile
+++ b/devel/libchipcard-kde/Makefile
@@ -21,6 +21,7 @@ USE_AUTOTOOLS=		libtool:22
 CONFIGURE_ARGS+=	--with-distri=freebsd --with-kde3-prefix=${LOCALBASE}\
 			--with-applnk-dir=${PREFIX}/share/applnk/Utilities
 USE_KDELIBS_VER=	3
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/devel/libdlna/Makefile b/devel/libdlna/Makefile
index 4022ddf098a8..af778f1bd922 100644
--- a/devel/libdlna/Makefile
+++ b/devel/libdlna/Makefile
@@ -22,6 +22,7 @@ USE_BZIP2=	yes
 USE_GMAKE=	yes
 USE_GNOME=	pkgconfig
 USE_LDCONFIG=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 CONFIGURE_ARGS+=	--prefix="${PREFIX}" --disable-optimize \
 			--includedir=${LOCALBASE}/include \
diff --git a/devel/libdnsres/Makefile b/devel/libdnsres/Makefile
index bd7c2ecec066..455a00db1de0 100644
--- a/devel/libdnsres/Makefile
+++ b/devel/libdnsres/Makefile
@@ -20,6 +20,7 @@ GNU_CONFIGURE=	yes
 USE_AUTOTOOLS=	libtool:22
 USE_LDCONFIG=	yes
 CONFIGURE_ARGS=--with-libevent=${LOCALBASE}
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_SUB+=	PORTVERSION="${PORTVERSION}"
 
diff --git a/devel/liboop/Makefile b/devel/liboop/Makefile
index 3a14030007df..7f9cedd4459a 100644
--- a/devel/liboop/Makefile
+++ b/devel/liboop/Makefile
@@ -27,6 +27,7 @@ GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
 CONFIGURE_ARGS=	--with-libwww
 USE_LDCONFIG=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 CPPFLAGS=	-I${LOCALBASE}/include/tcl8.4 -I${LOCALBASE}/include
 LDFLAGS=	-L${LOCALBASE}/lib
diff --git a/devel/libreadline-java/Makefile b/devel/libreadline-java/Makefile
index 0b253b4aa33e..3d1a52799acd 100644
--- a/devel/libreadline-java/Makefile
+++ b/devel/libreadline-java/Makefile
@@ -33,6 +33,7 @@ USE_GMAKE=	yes
 USE_JAVA=	yes
 USE_LDCONFIG=	yes
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
+MAKE_JOBS_UNSAFE=	yes
 
 do-install:
 	${INSTALL_DATA} ${WRKSRC}/libreadline-java.jar ${JAVAJARDIR}
diff --git a/devel/libtecla/Makefile b/devel/libtecla/Makefile
index 6efac42cdbe9..eefdbbcef5ec 100644
--- a/devel/libtecla/Makefile
+++ b/devel/libtecla/Makefile
@@ -22,6 +22,7 @@ USE_LDCONFIG=	yes
 SCRIPTS_ENV=	WRKDIRPREFIX="${WRKDIRPREFIX}" \
 		REALCURDIR="${.CURDIR}" \
 		PORTNAME="${PORTNAME}"
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/devel/log4cplus/Makefile b/devel/log4cplus/Makefile
index a6c36778bf6a..4c85b72539e7 100644
--- a/devel/log4cplus/Makefile
+++ b/devel/log4cplus/Makefile
@@ -20,6 +20,7 @@ USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV+=	CFLAGS="${CFLAGS} ${PTHREAD_CFLAGS}" \
 		LDFLAGS="${LDFLAGS} ${PTHREAD_LIBS}"
+MAKE_JOBS_UNSAFE=	yes
 
 .if !defined(NOPORTDOCS)
 PORTDOCS=	*
diff --git a/devel/log4cxx/Makefile b/devel/log4cxx/Makefile
index edf374182a11..4c8c653a38b3 100644
--- a/devel/log4cxx/Makefile
+++ b/devel/log4cxx/Makefile
@@ -32,6 +32,7 @@ CXXFLAGS+=	-I${LOCALBASE}/include -L${LOCALBASE}/lib
 USE_AUTOTOOLS=	automake:15 autoconf:262 libtool:22
 AUTOMAKE_ARGS=	--add-missing
 LIBTOOL_VARS=	--force --automake
+MAKE_JOBS_UNSAFE=	yes
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-I${LOCALBASE}/lib
diff --git a/devel/luajava/Makefile b/devel/luajava/Makefile
index dda2494b2e5d..024ec430d9d2 100644
--- a/devel/luajava/Makefile
+++ b/devel/luajava/Makefile
@@ -22,6 +22,7 @@ LUA_COMPS+=	compat51
 .endif
 USE_JAVA=	yes
 USE_LDCONFIG=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 ALL_TARGET=	run
 USE_DOS2UNIX=	yes
diff --git a/devel/maketool/Makefile b/devel/maketool/Makefile
index 5ffb38aa81e7..1460ab82ffd7 100644
--- a/devel/maketool/Makefile
+++ b/devel/maketool/Makefile
@@ -24,6 +24,7 @@ PLIST=		${WRKDIR}/pkg-plist
 USE_BZIP2=	yes
 USE_GETTEXT=	yes
 USE_GNOME=	atk glib20 gtk20 pango
+MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	${REINPLACE_CMD} -e "s,-Wpointer-arithmetic,," ${WRKSRC}/configure
diff --git a/devel/memcheck/Makefile b/devel/memcheck/Makefile
index 7a399c306172..f845d6412ca2 100644
--- a/devel/memcheck/Makefile
+++ b/devel/memcheck/Makefile
@@ -17,4 +17,6 @@ USE_AUTOTOOLS=	libtool:22
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 
+MAKE_JOBS_UNSAFE=	yes
+
 .include <bsd.port.mk>
diff --git a/devel/monotone-viz/Makefile b/devel/monotone-viz/Makefile
index 20ca44d1d252..7ed4dc770ae4 100644
--- a/devel/monotone-viz/Makefile
+++ b/devel/monotone-viz/Makefile
@@ -24,6 +24,7 @@ USE_GMAKE=	YES
 USE_GNOME=	gtk20 libgnomecanvas
 
 ALL_TARGET=
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	bin/monotone-viz
 
diff --git a/devel/ncurses-devel/Makefile b/devel/ncurses-devel/Makefile
index a496313a0033..3df82e7b1a70 100644
--- a/devel/ncurses-devel/Makefile
+++ b/devel/ncurses-devel/Makefile
@@ -50,6 +50,7 @@ CONFIGURE_ARGS=	--datadir=${PREFIX}/share/misc --disable-overwrite \
 		--without-curses-h --with-termlib --program-prefix= \
 		--enable-rpath --disable-root-environ \
 		--with-manpage-format=gzip --srcdir=../
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=	EXTCOLORS "Enable 256-color support (only for ncursesw)" off
 
diff --git a/devel/ncurses/Makefile b/devel/ncurses/Makefile
index dc0c832b0e3f..e34f32cacbcd 100644
--- a/devel/ncurses/Makefile
+++ b/devel/ncurses/Makefile
@@ -29,6 +29,7 @@ CONFIGURE_ARGS=	--datadir=${PREFIX}/share/misc --disable-overwrite \
 		--without-curses-h --with-termlib --program-prefix= \
 		--enable-rpath --disable-root-environ \
 		--with-manpage-format=gzip --srcdir=../
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=	EXTCOLORS "Enable 256-color support (only for ncursesw)" off
 
diff --git a/devel/ngpt/Makefile b/devel/ngpt/Makefile
index b89cd1821476..efc7a00e118c 100644
--- a/devel/ngpt/Makefile
+++ b/devel/ngpt/Makefile
@@ -21,6 +21,7 @@ CONFIGURE_ARGS=	--enable-tests=no --enable-maintainer=no \
 		--enable-pthread  --disable-kernel-patch \
 		--exec-prefix=${PREFIX} --includedir=${PREFIX}/include
 USE_GMAKE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 ONLY_FOR_ARCHS=	amd64 i386
 
diff --git a/devel/ocaml-camlp5/Makefile b/devel/ocaml-camlp5/Makefile
index 6f5521ac03d2..0aa86aa5496b 100644
--- a/devel/ocaml-camlp5/Makefile
+++ b/devel/ocaml-camlp5/Makefile
@@ -19,6 +19,7 @@ COMMENT=	A preprocessor-pretty-printer of OCaml
 
 USE_OCAML=	yes
 HAS_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 .if defined(WITH_TRANSITIONAL) || !defined(WITH_STRICT)
 CONFIGURE_ARGS=	--transitional --prefix ${PREFIX}
diff --git a/devel/ocaml-camomile/Makefile b/devel/ocaml-camomile/Makefile
index c6e544a8ebcd..fd0d9c788b0e 100644
--- a/devel/ocaml-camomile/Makefile
+++ b/devel/ocaml-camomile/Makefile
@@ -23,6 +23,7 @@ USE_OCAML_FINDLIB=yes
 USE_OCAML_LDCONFIG=yes
 USE_OCAML_WASH=	yes
 GNU_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 DOCSDIR=	${PREFIX}/share/doc/ocaml/${PORTNAME}
 EXAMPLESDIR=	${PREFIX}/share/examples/ocaml/${PORTNAME}
diff --git a/devel/ocaml-cfg/Makefile b/devel/ocaml-cfg/Makefile
index 194df680a6a0..d86a2e4893bf 100644
--- a/devel/ocaml-cfg/Makefile
+++ b/devel/ocaml-cfg/Makefile
@@ -21,6 +21,7 @@ USE_GMAKE=	yes
 USE_OCAML=	yes
 USE_OCAML_FINDLIB=yes
 USE_OCAML_WASH=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 DOCS=		README
 DOCSDIR=	${PREFIX}/share/doc/ocaml/${PORTNAME}
diff --git a/devel/ocaml-equeue/Makefile b/devel/ocaml-equeue/Makefile
index df88f5c3be92..397470081082 100644
--- a/devel/ocaml-equeue/Makefile
+++ b/devel/ocaml-equeue/Makefile
@@ -28,6 +28,7 @@ MAKE_FLAGS=	PACKAGES=	# If defined, would be used by ocamlfind
 HAS_CONFIGURE=	yes
 
 ALL_TARGET=	all opt
+MAKE_JOBS_UNSAFE=	yes
 
 PKGDEINSTALL=	${PKGINSTALL}
 
diff --git a/devel/ocaml-lacaml/Makefile b/devel/ocaml-lacaml/Makefile
index 4e8bfc018933..6f2af79a38d9 100644
--- a/devel/ocaml-lacaml/Makefile
+++ b/devel/ocaml-lacaml/Makefile
@@ -30,6 +30,7 @@ WRKSRC=		${WRKDIR}/lacaml-${DISTNAME}
 
 CFLAGS+=	-fPIC
 MAKE_ENV+=	OCAMLMKLIB_FLAGS="-L${LOCALBASE}/lib"
+MAKE_JOBS_UNSAFE=	yes
 
 DOCS=		README.txt TODO
 DOCSDIR=	${PREFIX}/share/doc/ocaml/${PORTNAME}
diff --git a/devel/ocaml-res/Makefile b/devel/ocaml-res/Makefile
index 728447f8aa5d..2f2cff3897e1 100644
--- a/devel/ocaml-res/Makefile
+++ b/devel/ocaml-res/Makefile
@@ -22,6 +22,7 @@ USE_GMAKE=	yes
 USE_OCAML=	yes
 USE_OCAML_FINDLIB=yes
 USE_OCAML_WASH=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 DOCS=		README.txt
 DOCSDIR=	${PREFIX}/share/doc/ocaml/${PORTNAME}
diff --git a/devel/ocaml-sem/Makefile b/devel/ocaml-sem/Makefile
index 5af256684d3e..6304c340f167 100644
--- a/devel/ocaml-sem/Makefile
+++ b/devel/ocaml-sem/Makefile
@@ -22,6 +22,7 @@ BUILD_DEPENDS=	ocamlc:${PORTSDIR}/lang/ocaml \
 
 MAKE_ENV=	OCAML_LIB_INSTALL="${PREFIX}/lib/ocaml/site-lib/sem" \
 		INCDIRS="${LOCALBASE}/include" LIBDIRS="${LOCALBASE}/lib"
+MAKE_JOBS_UNSAFE=	yes
 
 .if !defined(WITH_CUSTOM)
 MAKE_ENV+=	NO_CUSTOM=y
diff --git a/devel/ocaml-sexplib/Makefile b/devel/ocaml-sexplib/Makefile
index 816fca26f7b8..2cc48e0e0d6d 100644
--- a/devel/ocaml-sexplib/Makefile
+++ b/devel/ocaml-sexplib/Makefile
@@ -23,6 +23,7 @@ RUN_DEPENDS=	${SA_DIR}/type-conv/pa_type_conv.cmi:${PORTSDIR}/devel/ocaml-typeco
 USE_GMAKE=	yes
 USE_OCAML=	yes
 USE_OCAML_FINDLIB=yes
+MAKE_JOBS_UNSAFE=	yes
 
 DOCSDIR=	${PREFIX}/share/doc/ocaml/${PORTNAME}
 SA_DIR=		${LOCALBASE}/${OCAML_SITELIBDIR}
diff --git a/devel/ocaml-xstrp4/Makefile b/devel/ocaml-xstrp4/Makefile
index 0833e74d5ef3..40b5a3231dce 100644
--- a/devel/ocaml-xstrp4/Makefile
+++ b/devel/ocaml-xstrp4/Makefile
@@ -20,6 +20,7 @@ USE_GMAKE=	yes
 USE_OCAML=	yes
 USE_OCAML_FINDLIB=yes
 HAS_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 EXAMPLESDIR=	${PREFIX}/share/examples/ocaml/${PORTNAME}
 
diff --git a/devel/ode-devel/Makefile b/devel/ode-devel/Makefile
index 9756942c28d4..da1908003e9f 100644
--- a/devel/ode-devel/Makefile
+++ b/devel/ode-devel/Makefile
@@ -22,6 +22,7 @@ CONFLICTS=	ode-[0-9].*
 
 USE_GL=		yes
 USE_GMAKE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=	OPCODE "Enable code required by TriList (trimesh) class" on
 
diff --git a/devel/omake/Makefile b/devel/omake/Makefile
index f4d1ca859e05..2da49cb42a8d 100644
--- a/devel/omake/Makefile
+++ b/devel/omake/Makefile
@@ -19,6 +19,7 @@ COMMENT=	A flexible build system
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 USE_OCAML=	yes
 NO_OCAML_RUNDEPENDS=yes
+MAKE_JOBS_UNSAFE=	yes
 
 FETCH_CMD?=	/usr/bin/fetch -Rr
 
diff --git a/devel/p5-Device-USB/Makefile b/devel/p5-Device-USB/Makefile
index 295fefef224a..82c7ad3ae037 100644
--- a/devel/p5-Device-USB/Makefile
+++ b/devel/p5-Device-USB/Makefile
@@ -21,6 +21,7 @@ BUILD_DEPENDS=	${SITE_PERL}/Inline.pm:${PORTSDIR}/devel/p5-Inline
 
 WRKSRC=		${WRKDIR}/Device-USB-${PORTVERSION}
 PERL_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 MAN3=		Device::USB.3 \
 		Device::USB::Bus.3 \
diff --git a/devel/p5-Gnome2-GConf/Makefile b/devel/p5-Gnome2-GConf/Makefile
index d2a767c1d542..235bede09427 100644
--- a/devel/p5-Gnome2-GConf/Makefile
+++ b/devel/p5-Gnome2-GConf/Makefile
@@ -22,6 +22,7 @@ RUN_DEPENDS=	${SITE_PERL}/${PERL_ARCH}/Glib.pm:${PORTSDIR}/devel/p5-Glib2
 
 PERL_CONFIGURE=	5.8.0+
 USE_GNOME=	gconf2
+MAKE_JOBS_UNSAFE=	yes
 
 MAN3=		Gnome2::GConf.3 \
 		Gnome2::GConf::ChangeSet.3 \
diff --git a/devel/p5-PAR-Packer/Makefile b/devel/p5-PAR-Packer/Makefile
index fc6bfd7ed79e..74a2b293c8f4 100644
--- a/devel/p5-PAR-Packer/Makefile
+++ b/devel/p5-PAR-Packer/Makefile
@@ -28,6 +28,7 @@ RUN_DEPENDS=	${BUILD_DEPENDS}
 CONFLICTS=	sketchy-*
 
 PERL_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		par.pl.1 parl.1 pp.1 tkpp.1
 MAN3=		pp.3 \
diff --git a/devel/p5-usb/Makefile b/devel/p5-usb/Makefile
index 295fefef224a..82c7ad3ae037 100644
--- a/devel/p5-usb/Makefile
+++ b/devel/p5-usb/Makefile
@@ -21,6 +21,7 @@ BUILD_DEPENDS=	${SITE_PERL}/Inline.pm:${PORTSDIR}/devel/p5-Inline
 
 WRKSRC=		${WRKDIR}/Device-USB-${PORTVERSION}
 PERL_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 MAN3=		Device::USB.3 \
 		Device::USB::Bus.3 \
diff --git a/devel/pdcurses-the/Makefile b/devel/pdcurses-the/Makefile
index d056c201e73e..93f3fc8c1ece 100644
--- a/devel/pdcurses-the/Makefile
+++ b/devel/pdcurses-the/Makefile
@@ -20,6 +20,7 @@ CONFLICTS=	pdcurses-[0-9]*
 USE_LDCONFIG=	yes
 USE_XORG=	x11 xext sm ice xt xaw
 GNU_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=	DEBUG "Enable debugging support" off \
 		LATIN1 "Enable support for Latin1 keys" off \
diff --git a/devel/pthsem/Makefile b/devel/pthsem/Makefile
index 1eb8a0065a17..67b4f38c7514 100644
--- a/devel/pthsem/Makefile
+++ b/devel/pthsem/Makefile
@@ -20,4 +20,6 @@ USE_GMAKE=	yes
 MAN1=		pthsem-config.1
 MAN3=		pthsem.3
 
+MAKE_JOBS_UNSAFE=	yes
+
 .include <bsd.port.mk>
diff --git a/devel/ptypes/Makefile b/devel/ptypes/Makefile
index 4c23e41a8780..7e57f0c962f4 100644
--- a/devel/ptypes/Makefile
+++ b/devel/ptypes/Makefile
@@ -19,6 +19,7 @@ SHLIB_VER=	21
 USE_LDCONFIG=	yes
 PLIST_SUB+=	SHLIB_VER=${SHLIB_VER}
 PTYPES_CFLAGS=	${CFLAGS}
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=	DEBUG "Build debug version" off \
 		OPTIMIZED "Enable -O2 optimization" off
diff --git a/editors/led/Makefile b/editors/led/Makefile
index 6407552133e0..438eacd2d7e5 100644
--- a/editors/led/Makefile
+++ b/editors/led/Makefile
@@ -15,5 +15,6 @@ COMMENT=	A tiny text editor, with a number of useful programming features
 
 GNU_CONFIGURE=	yes
 USE_PERL5=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.mk>
diff --git a/editors/mined/Makefile b/editors/mined/Makefile
index 400829dd86f1..dc7bb1ed3446 100644
--- a/editors/mined/Makefile
+++ b/editors/mined/Makefile
@@ -27,6 +27,7 @@ MAKE_SHELL=	${LOCALBASE}/bin/bash	# To avoid "shift: can't shift that many"
 REINPLACE_ARGS=	-i ""
 MAKE_ARGS=	GMAKE=${GMAKE} CC=${CC:T} OPT="${CFLAGS}"
 INSTALL_TARGET=	localinstall
+MAKE_JOBS_UNSAFE=	yes
 
 NOMANCOMPRESS=	yes
 MAN1=		mined.1 minmacs.1 mpico.1 mstar.1 umined.1 uterm.1 xmined.1
diff --git a/editors/ne/Makefile b/editors/ne/Makefile
index 59595050fb37..bb477ddf6686 100644
--- a/editors/ne/Makefile
+++ b/editors/ne/Makefile
@@ -22,6 +22,7 @@ ALL_TARGET=	${PORTNAME}
 MAKE_ARGS=	CC="${CC}" \
 		CFLAGS="${CFLAGS}" \
 		NE_GLOBAL_DIR="${DATADIR}"
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		ne.1
 PORTDOCS=	ne.txt
diff --git a/ftp/moftpd/Makefile b/ftp/moftpd/Makefile
index 8c30fee6227e..392d0209ab78 100644
--- a/ftp/moftpd/Makefile
+++ b/ftp/moftpd/Makefile
@@ -22,6 +22,7 @@ USE_RC_SUBR=	moftpd
 USE_PERL5_BUILD=yes
 CONFIGURE_ENV+=	LIBS="${LIBS}" CFLAGS="${CFLAGS}"
 CONFIGURE_ARGS=	--localstatedir=/var
+MAKE_JOBS_UNSAFE=	yes
 
 MAN8=		moftpd.8 moftpadmin.8
 LIBS+=		-lcrypt
diff --git a/ftp/ocaml-ocurl/Makefile b/ftp/ocaml-ocurl/Makefile
index 1885b5ec8214..3331521697ef 100644
--- a/ftp/ocaml-ocurl/Makefile
+++ b/ftp/ocaml-ocurl/Makefile
@@ -24,6 +24,7 @@ WRKSRC=		${WRKDIR}/ocurl
 USE_GMAKE=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS+="--with-findlib"
+MAKE_JOBS_UNSAFE=	yes
 
 PKGDEINSTALL=	${PKGINSTALL}
 FINDLIB_PKGNAME=${PORTNAME:S/o//}
diff --git a/ftp/pftpd/Makefile b/ftp/pftpd/Makefile
index e48df95598d3..954388fb802b 100644
--- a/ftp/pftpd/Makefile
+++ b/ftp/pftpd/Makefile
@@ -15,6 +15,7 @@ MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Multithreaded anonymous FTP daemon
 
 GNU_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		pftpd.1 rpad.1
 PLIST_FILES=	sbin/pftpd
diff --git a/games/kardsgt/Makefile b/games/kardsgt/Makefile
index e8466aa98bb7..37b4ee193f81 100644
--- a/games/kardsgt/Makefile
+++ b/games/kardsgt/Makefile
@@ -17,6 +17,7 @@ USE_QT_VER=	4
 QT_COMPONENTS=	assistantclient corelib gui network \
 		moc_build qmake_build rcc_build uic_build
 ALL_TARGET=	qmake release
+MAKE_JOBS_UNSAFE=	yes
 
 MAN6=		kardsgt.6
 
diff --git a/games/ldmud/Makefile b/games/ldmud/Makefile
index 3c94f941c715..da1e8bca30cd 100644
--- a/games/ldmud/Makefile
+++ b/games/ldmud/Makefile
@@ -18,6 +18,7 @@ CONFIGURE_ARGS+=--libdir=${DATADIR} --bindir=${PREFIX}/sbin
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}/src
 ALL_TARGET=	ldmud
 MAN1=		ldmud.1
+MAKE_JOBS_UNSAFE=	yes
 
 LOGDIR=		${DATADIR}
 .if defined(MUDLIB) && ${MUDLIB} == lpmud
diff --git a/games/mvdsv/Makefile b/games/mvdsv/Makefile
index f5dc8ce9ddd4..35890f9b2642 100644
--- a/games/mvdsv/Makefile
+++ b/games/mvdsv/Makefile
@@ -21,6 +21,7 @@ HAS_CONFIGURE=	yes
 CONFIGURE_ARGS=	${OPSYS}
 ALL_TARGET=	${PORTNAME}
 WRKSRC=		${WRKDIR}/mvdsv-${PORTVERSION}
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	bin/${PORTNAME}
 
diff --git a/games/nadar/Makefile b/games/nadar/Makefile
index da3569590b9d..d6a0421a985d 100644
--- a/games/nadar/Makefile
+++ b/games/nadar/Makefile
@@ -15,6 +15,7 @@ MAINTAINER=	hsakai@m8.ffn.ne.jp
 COMMENT=	A network tank battle game
 
 USE_XORG=	xpm
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		nadars.1 nadar.1
 MANCOMPRESSED=	yes
diff --git a/games/nethack32/Makefile b/games/nethack32/Makefile
index a2ec94edd8da..adbd9973592d 100644
--- a/games/nethack32/Makefile
+++ b/games/nethack32/Makefile
@@ -26,6 +26,7 @@ USE_GMAKE=	yes
 USE_XORG=	xaw xpm
 PLIST_SUB=	HACKNAME="${HACKNAME}" \
 		HACKEXT="${HACKEXT}"
+MAKE_JOBS_UNSAFE=	yes
 
 MAN6=		dgn_comp${HACKEXT}.6 dlb${HACKEXT}.6 lev_comp${HACKEXT}.6 \
 		${HACKNAME}.6 recover${HACKEXT}.6
diff --git a/games/nethack33/Makefile b/games/nethack33/Makefile
index 0db7476308a6..6bcb10c25c1e 100644
--- a/games/nethack33/Makefile
+++ b/games/nethack33/Makefile
@@ -23,6 +23,7 @@ USE_GMAKE=	yes
 MAKE_ENV=	GRAPHICS="${GRAPHICS}" LDFLAGS="${LDFLAGS}"
 PLIST_SUB=	HACKNAME="${HACKNAME}" \
 		HACKEXT="${HACKEXT}"
+MAKE_JOBS_UNSAFE=	yes
 
 MAN6=		dgn_comp${HACKEXT}.6 dlb${HACKEXT}.6 lev_comp${HACKEXT}.6 \
 		${HACKNAME}.6 recover${HACKEXT}.6
diff --git a/games/noegnud-littlehack/Makefile b/games/noegnud-littlehack/Makefile
index 02f801604bfc..53bc6ca21e70 100644
--- a/games/noegnud-littlehack/Makefile
+++ b/games/noegnud-littlehack/Makefile
@@ -31,6 +31,7 @@ WRKSRC=		${WRKDIR}/${DISTNAME}/variants
 PATCH_WRKSRC=	${WRKDIR}/${DISTNAME}
 ALL_TARGET=	lh001
 INSTALL_TARGET=	install_lh001
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/games/noegnud-nethack-deet/Makefile b/games/noegnud-nethack-deet/Makefile
index d55fa03e1757..597a254ccd36 100644
--- a/games/noegnud-nethack-deet/Makefile
+++ b/games/noegnud-nethack-deet/Makefile
@@ -31,6 +31,7 @@ WRKSRC=		${WRKDIR}/${DISTNAME}/variants
 PATCH_WRKSRC=	${WRKDIR}/${DISTNAME}
 ALL_TARGET=	nh342-dt
 INSTALL_TARGET=	install_nh342-dt
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/games/noegnud-nethack/Makefile b/games/noegnud-nethack/Makefile
index b96905a3b095..54023bc9342c 100644
--- a/games/noegnud-nethack/Makefile
+++ b/games/noegnud-nethack/Makefile
@@ -31,6 +31,7 @@ WRKSRC=		${WRKDIR}/${DISTNAME}/variants
 PATCH_WRKSRC=	${WRKDIR}/${DISTNAME}
 ALL_TARGET=	nh343
 INSTALL_TARGET=	install_nh343
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/games/noegnud-slashem/Makefile b/games/noegnud-slashem/Makefile
index 76f5e7a90b1c..ca8c3dba8c79 100644
--- a/games/noegnud-slashem/Makefile
+++ b/games/noegnud-slashem/Makefile
@@ -31,6 +31,7 @@ WRKSRC=		${WRKDIR}/${DISTNAME}/variants
 PATCH_WRKSRC=	${WRKDIR}/${DISTNAME}
 ALL_TARGET=	se006e4f8
 INSTALL_TARGET=	install_se006e4f8
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/games/oonsoo/Makefile b/games/oonsoo/Makefile
index 6a4b3f4a3c7a..a504d323d085 100644
--- a/games/oonsoo/Makefile
+++ b/games/oonsoo/Makefile
@@ -23,6 +23,7 @@ MAKEFILE=	Makefile.Linux
 MAKE_ARGS=	CC="${CXX}" CPPFLAGS="${CXXFLAGS} -ansi"	\
 		SYS_INCLUDE="-I${LOCALBASE}/include"		\
 		SYS_LIBS="-L${LOCALBASE}/lib -lX11"
+MAKE_JOBS_UNSAFE=	yes
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/oonsoo ${PREFIX}/bin
diff --git a/games/pinball/Makefile b/games/pinball/Makefile
index 35f08fa9a46b..63706cbcb1b0 100644
--- a/games/pinball/Makefile
+++ b/games/pinball/Makefile
@@ -35,6 +35,7 @@ EXTRA_LIBS=	-lGL -lGLU
 .endif
 CONFIGURE_ENV=	CPPFLAGS="${CPPFLAGS} -I${LOCALBASE}/include -DRZR_LIBSTATIC" \
 		LDFLAGS="${LDFLAGS} -L${LOCALBASE}/lib ${EXTRA_LIBS}"
+MAKE_JOBS_UNSAFE=	yes
 ALLEGRO_CONFIG=	${LOCALBASE}/bin/allegro-config
 
 DOCS=		README
diff --git a/graphics/dore/Makefile b/graphics/dore/Makefile
index 12ea376eedd9..b83522540112 100644
--- a/graphics/dore/Makefile
+++ b/graphics/dore/Makefile
@@ -23,6 +23,7 @@ EXTRACT_CMD=	${MKDIR} ${WRKSRC}; cd ${WRKSRC}; ${GZIP_CMD}
 MAKEFILE=	mk.stdx
 MAKE_ENV=	DORE_LOC=${WRKDIR}
 NOPRECIOUSMAKEVARS=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/graphics/libart/Makefile b/graphics/libart/Makefile
index e2cbfa70ec0f..f3295fb884f4 100644
--- a/graphics/libart/Makefile
+++ b/graphics/libart/Makefile
@@ -18,6 +18,7 @@ USE_AUTOTOOLS=	libtool:22
 WRKSRC=		${WRKDIR}/${PORTNAME}_lgpl-${PORTVERSION}
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 CONFLICTS=	libart_lgpl-*
 
diff --git a/graphics/libaux/Makefile b/graphics/libaux/Makefile
index 122813a6f5b6..2f39f3a6cc0b 100644
--- a/graphics/libaux/Makefile
+++ b/graphics/libaux/Makefile
@@ -19,6 +19,7 @@ WRKSRC=		${WRKDIR}/${PORTNAME}
 
 USE_GL=		glut
 USE_IMAKE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 do-install:
 	${INSTALL_DATA} ${WRKSRC}/libaux.a ${PREFIX}/lib
diff --git a/graphics/mapserver/Makefile b/graphics/mapserver/Makefile
index c7e3cf9dc482..e86518e02b58 100644
--- a/graphics/mapserver/Makefile
+++ b/graphics/mapserver/Makefile
@@ -22,6 +22,7 @@ GNU_CONFIGURE=		yes
 CONFIGURE_ARGS=		--enable-runpath \
 			--with-gd=${LOCALBASE} \
 			--with-proj=${LOCALBASE}
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=		AGG "Support for AGG image rendering (req: FreeType)" off \
 			TIFF "Support for TIFF (but not GeoTIFF) files" off \
diff --git a/graphics/maverik/Makefile b/graphics/maverik/Makefile
index 6da92a59dbf0..6d4a96b31088 100644
--- a/graphics/maverik/Makefile
+++ b/graphics/maverik/Makefile
@@ -26,6 +26,7 @@ CONFIGURE_SCRIPT=	setup
 CONFIGURE_ARGS=	--MESAPATH=${LOCALBASE}
 USE_LDCONFIG=	yes
 MANCOMPRESSED=	no
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/graphics/mesagl/Makefile b/graphics/mesagl/Makefile
index 5142d6b3adaf..ca73c1f5e88f 100644
--- a/graphics/mesagl/Makefile
+++ b/graphics/mesagl/Makefile
@@ -31,6 +31,7 @@ GLVER=		14
 
 MAKEFILE=	Makefile.X11
 ALL_TARGET=	realclean freebsd
+MAKE_JOBS_UNSAFE=	yes
 
 do-install:
 	@${MKDIR} ${PREFIX}/include/Mesa/GL
diff --git a/graphics/moth/Makefile b/graphics/moth/Makefile
index e4687e530ac9..435a1c1df991 100644
--- a/graphics/moth/Makefile
+++ b/graphics/moth/Makefile
@@ -27,6 +27,7 @@ MAKE_ARGS=	CC="${CXX}" XLIBDIR="${LOCALBASE}/lib" MOC="${MOC}" \
 		MOTH_INCLUDES="${WRKSRC_LIBMOTH}/include" \
 		MOTH_LIBRARIES="${WRKSRC_LIBMOTH}/lib"
 ALL_TARGET=	clean moth
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	bin/${PORTNAME}
 PORTDOCS=	manual.pdf
diff --git a/graphics/mxp/Makefile b/graphics/mxp/Makefile
index 9c42174cea7b..fa623874ed92 100644
--- a/graphics/mxp/Makefile
+++ b/graphics/mxp/Makefile
@@ -18,6 +18,7 @@ COMMENT=	Application for computing/exploring Mandelbrot set
 WRKSRC=		${WRKDIR}/${PORTNAME}
 ALL_TARGET=
 USE_XORG=	xaw xbitmaps xpm
+MAKE_JOBS_UNSAFE=	yes
 
 post-extract:
 	@${CP} ${WRKSRC}/Makefile.noimake ${WRKSRC}/Makefile
diff --git a/graphics/plotmtv/Makefile b/graphics/plotmtv/Makefile
index fd4032268ffd..479bf1c8c5fe 100644
--- a/graphics/plotmtv/Makefile
+++ b/graphics/plotmtv/Makefile
@@ -22,6 +22,7 @@ USE_IMAKE=	yes
 USE_XORG=	x11 xext xt
 ALL_TARGET=	World
 MAN1=		plotmtv.1
+MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	@${FIND} ${WRKSRC} -name \*.c | ${XARGS} ${REINPLACE_CMD} -e 's/<malloc.h>/<stdlib.h>/'
diff --git a/japanese/FreeWnn-lib/Makefile b/japanese/FreeWnn-lib/Makefile
index 6182d8dc3706..74a6e49a3812 100644
--- a/japanese/FreeWnn-lib/Makefile
+++ b/japanese/FreeWnn-lib/Makefile
@@ -26,6 +26,7 @@ USE_LDCONFIG=	yes
 MAKE_ARGS=	MANLANG="${MANLANG}" CDEBUGFLAGS="${CFLAGS}"
 ALL_TARGET=	includes all
 INSTALL_TARGET=	install install.man
+MAKE_JOBS_UNSAFE=	yes
 
 WNNTYPE?=	WNN
 CONFIGURE_ARGS=	--enable-server=no \
diff --git a/korean/eterm/Makefile b/korean/eterm/Makefile
index 903ea3b795b1..7219afc6ea0d 100644
--- a/korean/eterm/Makefile
+++ b/korean/eterm/Makefile
@@ -27,6 +27,7 @@ USE_PERL5_BUILD=yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	LIBS="-L${LOCALBASE}/lib" LOCALBASE="${LOCALBASE}"
 MAN1=		Eterm.1
+MAKE_JOBS_UNSAFE=	yes
 
 pre-patch:
 	@${PERL} -pi -e 's,<malloc.h>,<stdlib.h>,' \
diff --git a/korean/hanIM/Makefile b/korean/hanIM/Makefile
index 3f04c2ed8432..895639646cd4 100644
--- a/korean/hanIM/Makefile
+++ b/korean/hanIM/Makefile
@@ -19,6 +19,7 @@ RUN_DEPENDS=	${LOCALBASE}/lib/X11/fonts/local/gulim12.pcf.gz:${PORTSDIR}/korean/
 USE_IMAKE=	YES
 USE_XORG=	xpm xmu xaw
 WRKSRC=		${WRKDIR}/hanIM
+MAKE_JOBS_UNSAFE=	yes
 
 post-install:
 	${MKDIR} ${PREFIX}/share/doc/hanIM
diff --git a/lang/objc/Makefile b/lang/objc/Makefile
index 88df233de53b..8a88b67dec47 100644
--- a/lang/objc/Makefile
+++ b/lang/objc/Makefile
@@ -22,6 +22,7 @@ MAKE_ENV=	PATH=${WRKDIR}/bin:${PATH}
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	PATH=${WRKDIR}/bin:${PATH}
 USE_GCC=	3.4
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 #
diff --git a/mail/nmh/Makefile b/mail/nmh/Makefile
index 336651f05f73..c7367384fabc 100644
--- a/mail/nmh/Makefile
+++ b/mail/nmh/Makefile
@@ -93,6 +93,7 @@ CONFIGURE_ARGS+=	--with-smtpservers="${NMH_SMTPSERVERS}"
 .ifdef NMH_EXTRA_CONFIGURE_ARGS
 CONFIGURE_ARGS+=	${NMH_EXTRA_CONFIGURE_ARGS}
 .endif
+MAKE_JOBS_UNSAFE=	yes
 
 CFLAGS+=	-D${NMH_LOCKING} -O
 OPTIONS=	SASL2 "Cyrus SASL2" OFF
diff --git a/math/PDL/Makefile b/math/PDL/Makefile
index adfd312d786c..25cd3f4f6715 100644
--- a/math/PDL/Makefile
+++ b/math/PDL/Makefile
@@ -37,6 +37,7 @@ PLIST_DIRS=	${SITE_PERL_REL}/${PERL_ARCH}/Inline
 PLIST_FILES=	bin/pdl bin/pdldoc bin/perldl bin/pptemplate \
 		${SITE_PERL_REL}/${PERL_ARCH}/Inline/Pdlpp.pm \
 		${SITE_PERL_REL}/${PERL_ARCH}/Inline/MakePdlppInstallable.pm
+MAKE_JOBS_UNSAFE=	yes
 
 .if defined(KITCHEN_SINK)
 RUN_DEPENDS+=	ppmtogif:${PORTSDIR}/graphics/netpbm \
diff --git a/math/libRmath/Makefile b/math/libRmath/Makefile
index 2196de6f7838..d42d2d3eaf21 100644
--- a/math/libRmath/Makefile
+++ b/math/libRmath/Makefile
@@ -40,6 +40,7 @@ USE_LDCONFIG=		yes
 CONFIGURE_ARGS+=--with-readline=no --with-x=no --disable-mbcs --disable-nls --with-tcltk=no --with-cairo=no \
 		--with-libpng=no --with-jpeglib=no --with-iconv=no --with-ICU=no --without-libintl-prefix
 BUILD_WRKSRC=		${WRKSRC}/src/nmath/standalone
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	include/Rmath.h lib/libRmath.a lib/libRmath.so lib/libRmath.so.0
 
diff --git a/math/liborigin/Makefile b/math/liborigin/Makefile
index 55a8ba90f94d..b59a358d9678 100644
--- a/math/liborigin/Makefile
+++ b/math/liborigin/Makefile
@@ -24,6 +24,7 @@ PLIST_FILES=	bin/opj2dat \
 PLIST_DIRS=	include/${PORTNAME}
 
 USE_LDCONFIG=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	@${REINPLACE_CMD} -e \
diff --git a/net-mgmt/nfdump/Makefile b/net-mgmt/nfdump/Makefile
index a1b0b9245159..532a94e2d5a2 100644
--- a/net-mgmt/nfdump/Makefile
+++ b/net-mgmt/nfdump/Makefile
@@ -14,6 +14,7 @@ MAINTAINER=	janos.mohacsi@bsd.hu
 COMMENT=	Command-line tools to collect and process NetFlow data
 
 GNU_CONFIGURE=	yes
+MAKE_JOBS_UNSAFE=	yes
 
 #flow-tools support
 OPTIONS=	FT2NFDUMP	"With Flow-tools to nfdump converter" off \
diff --git a/net/ngrep/Makefile b/net/ngrep/Makefile
index 50e9e229c5bc..f08b61f31971 100644
--- a/net/ngrep/Makefile
+++ b/net/ngrep/Makefile
@@ -21,6 +21,7 @@ USE_GMAKE=	yes
 ALL_TARGET=	ngrep
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--disable-pcap-restart
+MAKE_JOBS_UNSAFE=	yes
 
 OPTIONS=	PCRE	"Use PCRE instead of GNU regex"	on \
 		PORTS_PCAP	"Use ports PCAP instead of system PCAP" off \
diff --git a/print/libppd/Makefile b/print/libppd/Makefile
index b47bc746a059..a0cf3c2d6b9f 100644
--- a/print/libppd/Makefile
+++ b/print/libppd/Makefile
@@ -18,6 +18,7 @@ USE_AUTOTOOLS=	libtool:22
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	Yes
 USE_GNOME=	glib12
+MAKE_JOBS_UNSAFE=	yes
 
 MAN1=		ppdfilt.1
 MAN3=           ppd_check_option_is_marked.3 ppd_emit_to_file.3 \
diff --git a/textproc/link-grammar/Makefile b/textproc/link-grammar/Makefile
index 19445c5f80fe..4afcdfe86d28 100644
--- a/textproc/link-grammar/Makefile
+++ b/textproc/link-grammar/Makefile
@@ -22,6 +22,7 @@ USE_CSTD=	gnu99
 CFLAGS+=	${PTHREAD_CFLAGS}
 CONFIGURE_ARGS=	--enable-pthreads \
 		--disable-java-bindings
+MAKE_JOBS_UNSAFE=	yes
 
 DOCS=		AUTHORS LICENSE MAINTAINERS README
 MAN1=		link-parser.1
diff --git a/www/lynx-current/Makefile b/www/lynx-current/Makefile
index 5a453e30fdbf..06e8b6b6d905 100644
--- a/www/lynx-current/Makefile
+++ b/www/lynx-current/Makefile
@@ -30,6 +30,7 @@ CONFIGURE_ARGS= --with-zlib --libdir="${L_LIB}" \
 		--enable-gzip-help \
 		--with-mime-libdir=${PREFIX}/etc \
 		--with-libiconv-prefix=${LOCALBASE}
+MAKE_JOBS_UNSAFE=	yes
 
 .ifndef NO_OPENSSL
 USE_OPENSSL=	yes
diff --git a/www/ocaml-net/Makefile b/www/ocaml-net/Makefile
index f4c5756f1d56..4217bf931275 100644
--- a/www/ocaml-net/Makefile
+++ b/www/ocaml-net/Makefile
@@ -27,6 +27,7 @@ USE_OCAML_FINDLIB=	yes
 HAS_CONFIGURE=	yes
 
 ALL_TARGET=	all opt
+MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=	bin/netplex-admin \
 		bin/ocamlrpcgen
diff --git a/x11-toolkits/p5-Gnome2-Canvas/Makefile b/x11-toolkits/p5-Gnome2-Canvas/Makefile
index ab0c51a8e62c..b716745926db 100644
--- a/x11-toolkits/p5-Gnome2-Canvas/Makefile
+++ b/x11-toolkits/p5-Gnome2-Canvas/Makefile
@@ -27,6 +27,7 @@ RUN_DEPENDS=	${SITE_PERL}/${PERL_ARCH}/Glib.pm:${PORTSDIR}/devel/p5-Glib2 \
 
 USE_GNOME=	libgnomecanvas
 PERL_CONFIGURE=	5.8.0+
+MAKE_JOBS_UNSAFE=	yes
 
 post-install:
 	@cd ${WRKSRC}/blib/man3 && ${FIND} * -name "*.3" | ${SED} \
diff --git a/x11-toolkits/p5-Gnome2-VFS/Makefile b/x11-toolkits/p5-Gnome2-VFS/Makefile
index af140ecccd37..76de2cc45fd9 100644
--- a/x11-toolkits/p5-Gnome2-VFS/Makefile
+++ b/x11-toolkits/p5-Gnome2-VFS/Makefile
@@ -26,6 +26,7 @@ RUN_DEPENDS=	${SITE_PERL}/${PERL_ARCH}/Glib.pm:${PORTSDIR}/devel/p5-Glib2 \
 
 USE_GNOME=	gnomevfs2
 PERL_CONFIGURE=	5.8.0+
+MAKE_JOBS_UNSAFE=	yes
 
 post-install:
 	@cd ${WRKSRC}/blib/man3 && ${FIND} * -name "*.3" | ${SED} \
diff --git a/x11-toolkits/p5-Gtk/Makefile b/x11-toolkits/p5-Gtk/Makefile
index cc527f408c8f..27fc0e6eafe5 100644
--- a/x11-toolkits/p5-Gtk/Makefile
+++ b/x11-toolkits/p5-Gtk/Makefile
@@ -22,6 +22,7 @@ BUILD_DEPENDS=	${SITE_PERL}/XML/Writer.pm:${PORTSDIR}/textproc/p5-XML-Writer \
 USE_GNOME=	gtk12
 PERL_CONFIGURE=	yes
 CONFIGURE_ARGS=	--without-guessing --lazy-load
+MAKE_JOBS_UNSAFE=	yes
 
 MAN3=		Gtk.3pm \
 		Gtk::CListModel.3pm \
diff --git a/x11-toolkits/p5-Gtk2-Html2/Makefile b/x11-toolkits/p5-Gtk2-Html2/Makefile
index cf242e292355..d9a8f82dd6f7 100644
--- a/x11-toolkits/p5-Gtk2-Html2/Makefile
+++ b/x11-toolkits/p5-Gtk2-Html2/Makefile
@@ -26,6 +26,7 @@ RUN_DEPENDS=	${SITE_PERL}/${PERL_ARCH}/Glib.pm:${PORTSDIR}/devel/p5-Glib2 \
 
 USE_GNOME=	libgtkhtml
 PERL_CONFIGURE=	5.8.0+
+MAKE_JOBS_UNSAFE=	yes
 
 post-install:
 	@cd ${WRKSRC}/blib/man3 && ${FIND} * -name "*.3" | ${SED} \
diff --git a/x11/libdnd/Makefile b/x11/libdnd/Makefile
index 8b6dcb63a79f..b80251e08886 100644
--- a/x11/libdnd/Makefile
+++ b/x11/libdnd/Makefile
@@ -22,6 +22,7 @@ WRKSRC=		${WRKDIR}/DND/DNDlib
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include/" \
 		LDFLAGS="-L${LOCALBASE}/lib/"
+MAKE_JOBS_UNSAFE=	yes
 
 post-install:
 .if !defined(NOPORTDOCS)
diff --git a/x11/libgnome-java/Makefile b/x11/libgnome-java/Makefile
index a28a22b9a093..4fbc6b7b4dbc 100644
--- a/x11/libgnome-java/Makefile
+++ b/x11/libgnome-java/Makefile
@@ -31,6 +31,7 @@ CONFIGURE_ARGS=	--without-gcj-compile --with-jardir=${JAVAJARDIR}
 CONFIGURE_ENV=	CPPFLAGS="-I${JAVA_HOME}/include -I${JAVA_HOME}/include/freebsd" \
 		ac_cv_path_DB1="nocommand" \
 		ac_cv_path_DB2="nocommand"
+MAKE_JOBS_UNSAFE=	yes
 
 # jikes related
 CONFIGURE_ENV+=	BOOTCLASSPATH=${JAVA_CLASSES}