Factored out the parts that are common between all the supported

platforms, mainly because it wouldn't have made sense to document the
variables in one of those files, but they need to be documented
somewhere.

Added the file defaults.mk, which now serves as the reference document
which provides useful default values and _explains_ the variables.

15 files changed, 189 insertions, 120 deletions

diff --git a/mk/platform/AIX.mk b/mk/platform/AIX.mk
index 1f0fe382bf7..af23c00a94d 100644
--- a/mk/platform/AIX.mk
+++ b/mk/platform/AIX.mk
@@ -1,4 +1,4 @@
-# $NetBSD: AIX.mk,v 1.27 2007/10/09 20:39:39 rillig Exp $
+# $NetBSD: AIX.mk,v 1.28 2007/10/18 21:52:23 rillig Exp $
 #
 # Variable definitions for the AIX operating system.
 
@@ -16,18 +16,12 @@ STRIP?=     ${LOCALBASE}/bin/strip
 SU?=		/usr/bin/su
 TYPE?=		type				# Shell builtin
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/sbin/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=		system
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 # imake installs manpages in weird places
 # these values from /usr/X11R6/lib/X11/config/NetBSD.cf
@@ -86,3 +80,5 @@ SERIAL_DEVICES?=	/dev/tty0 \
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/BSDOS.mk b/mk/platform/BSDOS.mk
index 4693933d2ff..6108617579a 100644
--- a/mk/platform/BSDOS.mk
+++ b/mk/platform/BSDOS.mk
@@ -1,4 +1,4 @@
-# $NetBSD: BSDOS.mk,v 1.21 2007/07/02 14:03:35 joerg Exp $
+# $NetBSD: BSDOS.mk,v 1.22 2007/10/18 21:52:23 rillig Exp $
 #
 # Variable definitions for the BSD/OS operating system.
 
@@ -17,8 +17,6 @@ SU?=		/usr/bin/su
 # sh doesn't have built-in type
 TYPE?=		which
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 .if ${OBJECT_FMT} == "ELF"
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 .else
@@ -26,13 +24,9 @@ EXPORT_SYMBOLS_LDFLAGS?=-Wl,--export-dynamic
 .endif
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/sbin/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=	wheel
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 # imake installs manpages in weird places
 # XXX: assume NetBSD defaults until somebody determines correct values
@@ -94,3 +88,5 @@ PKG_CREATE_USERGROUP=	NO # until it works
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/Darwin.mk b/mk/platform/Darwin.mk
index a852a90088a..40e8e252abd 100644
--- a/mk/platform/Darwin.mk
+++ b/mk/platform/Darwin.mk
@@ -1,4 +1,4 @@
-# $NetBSD: Darwin.mk,v 1.24 2007/07/29 05:19:44 jlam Exp $
+# $NetBSD: Darwin.mk,v 1.25 2007/10/18 21:52:23 rillig Exp $
 #
 # Variable definitions for the Darwin operating system.
 
@@ -7,7 +7,6 @@ CPP=		${CC} -E ${CPP_PRECOMP_FLAGS}
 .endif
 ECHO_N?=	${ECHO} -n
 LDD?=		/usr/bin/otool -L
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
 PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 # XXX: default from defaults/mk.conf.  Verify/correct for this platform
@@ -22,19 +21,14 @@ IMAKEOPTS+=	-DInstallFlags=-c		# do not set user or group
 .if !defined(PKGSRC_COMPILER) || !empty(PKGSRC_COMPILER:Mgcc)
 CPP_PRECOMP_FLAGS?=	-no-cpp-precomp	# use the GNU cpp, not the OS X cpp
 .endif
-DEF_UMASK?=		0022
 DEFAULT_SERIAL_DEVICE?=	/dev/null
 EXPORT_SYMBOLS_LDFLAGS?=	# Don't add symbols to the dynamic symbol table
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/usr/bin/false
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		/usr/bin/sudo ${SH} -c
 ROOT_GROUP?=		wheel
 ROOT_USER?=		root
 SERIAL_DEVICES?=	/dev/null
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 GROUPADD?=		${LOCALBASE}/sbin/groupadd
 USERADD?=		${LOCALBASE}/sbin/useradd
@@ -106,3 +100,5 @@ CONFIGURE_ENV+=		ac_cv_func_poll=no
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/DragonFly.mk b/mk/platform/DragonFly.mk
index f14e118ea71..07d94760aa8 100644
--- a/mk/platform/DragonFly.mk
+++ b/mk/platform/DragonFly.mk
@@ -1,28 +1,20 @@
-# $NetBSD: DragonFly.mk,v 1.32 2007/07/29 05:19:44 jlam Exp $
+# $NetBSD: DragonFly.mk,v 1.33 2007/10/18 21:52:23 rillig Exp $
 #
 # Variable definitions for the DragonFly operating system.
 
 ECHO_N?=	${ECHO} -n
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
 IMAKEOPTS+=	-DBuildHtmlManPages=NO
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 PW?=		/usr/sbin/pw
 SU?=		/usr/bin/su
 TYPE?=		type				# Shell builtin
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/sbin/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=		wheel
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 # DragonFly does not provide an X11, so default to modular X.org
 X11_TYPE?=		modular
@@ -92,3 +84,5 @@ GAMEGRP=		games
 GAMEMODE=		2555
 GAMEDIRMODE=		0775
 .endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/FreeBSD.mk b/mk/platform/FreeBSD.mk
index 7a4b830eb53..aed07b2805a 100644
--- a/mk/platform/FreeBSD.mk
+++ b/mk/platform/FreeBSD.mk
@@ -1,19 +1,15 @@
-# $NetBSD: FreeBSD.mk,v 1.21 2007/07/29 05:19:44 jlam Exp $
+# $NetBSD: FreeBSD.mk,v 1.22 2007/10/18 21:52:23 rillig Exp $
 #
 # Variable definitions for the FreeBSD operating system.
 
 BRANDELF?=	/usr/bin/brandelf		# used by linux compat layer
 ECHO_N?=	${ECHO} -n
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
 IMAKEOPTS+=	-DBuildHtmlManPages=NO
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 PW?=		/usr/sbin/pw
 SU?=		/usr/bin/su
 TYPE?=		type				# Shell builtin
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 .if ${OBJECT_FMT} == "ELF"
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 .else
@@ -21,13 +17,9 @@ EXPORT_SYMBOLS_LDFLAGS?=-Wl,--export-dynamic
 .endif
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/sbin/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=	wheel
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 # imake installs manpages in weird places
 IMAKE_MAN_SOURCE_PATH=	man/man
@@ -94,3 +86,5 @@ GAMEGRP=		games
 GAMEMODE=		2555
 GAMEDIRMODE=		0775
 .endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/HPUX.mk b/mk/platform/HPUX.mk
index 8e3287ab54a..c0e8754d7d1 100644
--- a/mk/platform/HPUX.mk
+++ b/mk/platform/HPUX.mk
@@ -1,11 +1,9 @@
-# $NetBSD: HPUX.mk,v 1.8 2007/10/16 12:11:25 tnn Exp $
+# $NetBSD: HPUX.mk,v 1.9 2007/10/18 21:52:23 rillig Exp $
 #
 # Variable definitions for the HP-UX operating system.
 
 CPP?=		/opt/langtools/lbin/cpp
 ECHO_N?=	/usr/bin/printf		# echo doesn't understand -n
-IMAKE_MAKE?=	${MAKE}			# program which gets invoked by imake
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 SU?=		/usr/bin/su
 TYPE?=		type			# Shell builtin
@@ -13,19 +11,14 @@ TYPE?=		type			# Shell builtin
 USERADD?=	/usr/sbin/useradd
 GROUPADD?=	/usr/sbin/groupadd
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/etc/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=		sys
 TOUCH_FLAGS?=				# touch doesn't understand -f
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
+
 # imake installs manpages in weird places
 # these values from /usr/X11R6/lib/X11/config/NetBSD.cf
 IMAKE_MAN_SOURCE_PATH=	man/cat
@@ -78,5 +71,7 @@ KRB5_DEFAULT?=		mit-krb5
 PREFER.openssl?=	pkgsrc
 PREFER.zlib?=		pkgsrc
 
-_STRIPFLAG_CC?=		${_INSTALL_UNSTRIPPED:D:U}	# cc(1) option to strip
-_STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U}	# install(1) option to strip
+_STRIPFLAG_CC?=		# none; XXX: why?
+_STRIPFLAG_INSTALL?=	# none; XXX: why?
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/IRIX.mk b/mk/platform/IRIX.mk
index 119df415909..bf5e4ac4b58 100644
--- a/mk/platform/IRIX.mk
+++ b/mk/platform/IRIX.mk
@@ -1,9 +1,8 @@
-# $NetBSD: IRIX.mk,v 1.30 2007/07/29 05:19:44 jlam Exp $
+# $NetBSD: IRIX.mk,v 1.31 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the IRIX operating system.
 
 ECHO_N?=	${ECHO} -n
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
 IMAKEOPTS+=	-DMakeCmd=${PREFIX}/bin/bmake -DProjectRoot=${X11BASE}
 IMAKEOPTS+=	-DManUsr=${PREFIX}
 .if empty(OS_VERSION:M6*)
@@ -11,13 +10,10 @@ IMAKEOPTS+=	-DShLibDir=${X11BASE}/lib
 IMAKEOPTS+=	-DOptimizerLevel="${CFLAGS}"
 IMAKEOPTS+=	-DManPath=${PREFIX}/man
 .endif
-PKGLOCALEDIR?=	share
 PS?=		/sbin/ps
 SU?=		/sbin/su
 TYPE?=		/sbin/type
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		022
 DEFAULT_SERIAL_DEVICE?=	/dev/null
 EXPORT_SYMBOLS_LDFLAGS?=	# Don't add symbols to the dynamic symbol table
 MOTIF_TYPE_DEFAULT?=	dt		# default 2.0 compatible libs type
@@ -26,8 +22,6 @@ ROOT_CMD?=		${SU} - root -c
 ROOT_GROUP?=		sys
 ROOT_USER?=		root
 SERIAL_DEVICES?=	/dev/null
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
 ULIMIT_CMD_memorysize?=	ulimit -v `ulimit -H -v`
 
 # imake installs manpages in weird places
@@ -121,3 +115,5 @@ _OPSYS_MAX_CMDLEN_CMD=	/usr/sbin/sysconf ARG_MAX
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/Interix.mk b/mk/platform/Interix.mk
index cd8c447d084..afa54db19fb 100644
--- a/mk/platform/Interix.mk
+++ b/mk/platform/Interix.mk
@@ -1,4 +1,4 @@
-# $NetBSD: Interix.mk,v 1.52 2007/07/02 14:03:40 joerg Exp $
+# $NetBSD: Interix.mk,v 1.53 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the Interix operating system.
 
@@ -79,9 +79,7 @@ USE_BULK_TIMESTAMPS?=	no
 ###
 
 ECHO_N?=	/bin/printf %s			# does not support "echo -n"
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
 IMAKEOPTS+=	-DBuildHtmlManPages=NO
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 SU?=		/bin/su
 TYPE?=		type				# Shell builtin
@@ -91,7 +89,6 @@ GROUPADD?=		${LOCALBASE}/sbin/groupadd
 _PKG_USER_HOME?=	# empty by default
 _USER_DEPENDS=		user>=20040426:../../sysutils/user_interix
 
-CPP_PRECOMP_FLAGS?=	# unset
 CONFIG_RPATH_OVERRIDE?=	config.rpath */config.rpath */*/config.rpath
 DEF_UMASK?=		002
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
@@ -105,8 +102,6 @@ ROOT_CMD?=		${SU} - "$$(id -un ${ROOT_USER})" -c
 ROOT_USER?=		${BINOWN}
 ROOT_GROUP?=		131616 # +Administrators or native language equivalent
 TOUCH_FLAGS?=
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
 ULIMIT_CMD_memorysize?=	ulimit -v `ulimit -H -v`
 
 # imake installs manpages in weird places
@@ -180,3 +175,5 @@ _OPSYS_MAX_CMDLEN_CMD=	${ECHO} 262144
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/Linux.mk b/mk/platform/Linux.mk
index 892e4b0b4d0..fd15e35de21 100644
--- a/mk/platform/Linux.mk
+++ b/mk/platform/Linux.mk
@@ -1,32 +1,29 @@
-# $NetBSD: Linux.mk,v 1.29 2007/07/29 05:19:44 jlam Exp $
+# $NetBSD: Linux.mk,v 1.30 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the Linux operating system.
 
 ECHO_N?=	${ECHO} -n
-IMAKE_MAKE?=	${GMAKE}	# program which gets invoked by imake
+
+# imake on Linux generates Makefiles that can only be understood by
+# GNU make.
+IMAKE_MAKE?=	${GMAKE}
+
 IMAKEOPTS+=	-DBuildHtmlManPages=NO
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 # XXX: default from defaults/mk.conf.  Verify/correct for this platform
 # and remove this comment.
 SU?=		/bin/su
 TYPE?=		type			# Shell builtin
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		022
 DEFAULT_SERIAL_DEVICE?=	/dev/null
 EXPORT_SYMBOLS_LDFLAGS?=	# Don't add symbols to the dynamic symbol table
 GROUPADD?=		/usr/sbin/groupadd
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/bin/false
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_GROUP?=		root
 ROOT_USER?=		root
 SERIAL_DEVICES?=	/dev/null
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 USERADD?=		/usr/sbin/useradd
 
 # imake installs manpages in weird places
@@ -95,3 +92,5 @@ _STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U-s}	# install(1) option to strip
 ABI?=	64
 LIBABISUFFIX?=          64
 .endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/NetBSD.mk b/mk/platform/NetBSD.mk
index 9839a705640..80d98bb1254 100644
--- a/mk/platform/NetBSD.mk
+++ b/mk/platform/NetBSD.mk
@@ -1,4 +1,4 @@
-# $NetBSD: NetBSD.mk,v 1.25 2007/08/21 22:49:33 jlam Exp $
+# $NetBSD: NetBSD.mk,v 1.26 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the NetBSD operating system.
 
@@ -7,8 +7,6 @@
 CPP=		/usr/bin/cpp
 .endif
 ECHO_N?=	${ECHO} -n
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 SU?=		/usr/bin/su
 TYPE?=		type				# Shell builtin
@@ -22,8 +20,6 @@ GROUPADD?=	${LOCALBASE}/sbin/groupadd
 _USER_DEPENDS=	user>=20000313:../../sysutils/user
 .endif
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 .if ${OBJECT_FMT} == "ELF"
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 .else
@@ -31,17 +27,12 @@ EXPORT_SYMBOLS_LDFLAGS?=-Wl,--export-dynamic
 .endif
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/sbin/nologin
-.if exists(${LOCALBASE}/sbin/pkg_info)
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
-.else
+.if !exists(${LOCALBASE}/sbin/pkg_info) && exists(/usr/sbin/pkg_info)
 PKG_TOOLS_BIN?=		/usr/sbin
 .endif
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=	wheel
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 # imake installs manpages in weird places
 # these values from /usr/X11R6/lib/X11/config/NetBSD.cf
@@ -101,9 +92,6 @@ _OPSYS_NO_WHOLE_ARCHIVE_FLAG=	-Wl,--no-whole-archive
 LINK_ALL_LIBGCC_HACK=	-Wl,--whole-archive -lgcc -Wl,--no-whole-archive
 .endif
 
-_STRIPFLAG_CC?=		${_INSTALL_UNSTRIPPED:D:U-s}	# cc(1) option to strip
-_STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U-s}	# install(1) option to strip
-
 .if (${MACHINE_ARCH} == alpha)
 DEFAULT_SERIAL_DEVICE?=	/dev/ttyC0
 SERIAL_DEVICES?=	/dev/ttyC0 \
@@ -156,3 +144,5 @@ GAMEGRP=		games
 GAMEMODE=		2555
 GAMEDIRMODE=		0775
 .endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/OSF1.mk b/mk/platform/OSF1.mk
index 6db797848bf..39c75373756 100644
--- a/mk/platform/OSF1.mk
+++ b/mk/platform/OSF1.mk
@@ -1,4 +1,4 @@
-# $NetBSD: OSF1.mk,v 1.19 2007/10/16 12:11:25 tnn Exp $
+# $NetBSD: OSF1.mk,v 1.20 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the OSF1 operating system.
 
@@ -11,8 +11,6 @@
 
 CPP?=		/usr/bin/cpp
 ECHO_N?=	${SETENV} CMD_ENV=bsd /usr/bin/echo -n
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 STRIP?=		/usr/bin/strip
 SU?=		/usr/bin/su
@@ -21,18 +19,12 @@ TYPE?=		type				# Shell builtin
 USERADD?=	/usr/sbin/useradd
 GROUPADD?=	/usr/sbin/groupadd
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-non_hidden	# add symbols to the dynamic symbol table
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/etc/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=		system
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 # imake installs manpages in weird places
 # these values from /usr/X11R6/lib/X11/config/NetBSD.cf
 IMAKE_MAN_SOURCE_PATH=	man/cat
@@ -76,3 +68,5 @@ _INCOMPAT_ICONV=   OSF1-*-*
 
 _STRIPFLAG_CC?=		${_INSTALL_UNSTRIPPED:D:U}	# cc(1) option to strip
 _STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U}	# install(1) option to strip
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/OpenBSD.mk b/mk/platform/OpenBSD.mk
index 1adfc22a8dc..3b951741458 100644
--- a/mk/platform/OpenBSD.mk
+++ b/mk/platform/OpenBSD.mk
@@ -1,10 +1,8 @@
-# $NetBSD: OpenBSD.mk,v 1.25 2007/07/02 14:03:41 joerg Exp $
+# $NetBSD: OpenBSD.mk,v 1.26 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the OpenBSD operating system.
 
 ECHO_N?=	${ECHO} -n
-IMAKE_MAKE?=	${MAKE}		# program which gets invoked by imake
-PKGLOCALEDIR?=	share
 PS?=		/bin/ps
 # XXX: default from defaults/mk.conf.  Verify/correct for this platform
 # and remove this comment.
@@ -16,8 +14,6 @@ USERADD?=	/usr/sbin/useradd
 GROUPADD?=	/usr/sbin/groupadd
 .endif
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		0022
 .if ${OBJECT_FMT} == "ELF"
 EXPORT_SYMBOLS_LDFLAGS?=-Wl,-E	# add symbols to the dynamic symbol table
 .else
@@ -25,13 +21,9 @@ EXPORT_SYMBOLS_LDFLAGS?=-Wl,--export-dynamic
 .endif
 MOTIF_TYPE_DEFAULT?=	openmotif	# default 2.0 compatible libs type
 NOLOGIN?=		/sbin/nologin
-PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 ROOT_CMD?=		${SU} - root -c
 ROOT_USER?=		root
 ROOT_GROUP?=	wheel
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
-ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
 
 # imake installs manpages in weird places
 # these values from /usr/X11R6/lib/X11/config/OpenBSD.cf
@@ -71,9 +63,6 @@ _USE_RPATH=		yes	# add rpath to LDFLAGS
 _OPSYS_WHOLE_ARCHIVE_FLAG=	-Wl,--whole-archive
 _OPSYS_NO_WHOLE_ARCHIVE_FLAG=	-Wl,--no-whole-archive
 
-_STRIPFLAG_CC?=		${_INSTALL_UNSTRIPPED:D:U-s}	# cc(1) option to strip
-_STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U-s}	# install(1) option to strip
-
 .if (${MACHINE_ARCH} == alpha)
 DEFAULT_SERIAL_DEVICE?=	/dev/ttyC0
 SERIAL_DEVICES?=	/dev/ttyC0 \
@@ -110,3 +99,5 @@ _OPSYS_MAX_CMDLEN_CMD=	/sbin/sysctl -n kern.argmax
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/SunOS.mk b/mk/platform/SunOS.mk
index f3d6a3cdb02..9071068dbad 100644
--- a/mk/platform/SunOS.mk
+++ b/mk/platform/SunOS.mk
@@ -1,4 +1,4 @@
-# $NetBSD: SunOS.mk,v 1.30 2007/07/29 05:19:44 jlam Exp $
+# $NetBSD: SunOS.mk,v 1.31 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the SunOS/Solaris operating system.
 
@@ -11,20 +11,22 @@ PS?=		/bin/ps
 SU?=		/usr/bin/su
 TYPE?=		/usr/bin/type
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		022
 DEFAULT_SERIAL_DEVICE?=	/dev/null
 EXPORT_SYMBOLS_LDFLAGS?=	# Don't add symbols to the dynamic symbol table
 GROUPADD?=		/usr/sbin/groupadd
 MOTIF_TYPE_DEFAULT?=	dt		# default 2.0 compatible libs type
-NOLOGIN?=		${FALSE}
 ROOT_CMD?=		${SU} - root -c
 ROOT_GROUP?=		root
 ROOT_USER?=		root
 SERIAL_DEVICES?=	/dev/null
+
+# `ulimit' cannot parse localized messages of "unlimited", so force the
+# language to be "C".
+#
 ULIMIT_CMD_datasize?=	ulimit -d `${SETENV} LC_MESSAGES=C ulimit -H -d`
 ULIMIT_CMD_stacksize?=	ulimit -s `${SETENV} LC_MESSAGES=C ulimit -H -s`
 ULIMIT_CMD_memorysize?=	ulimit -v `${SETENV} LC_MESSAGES=C ulimit -H -v`
+
 USERADD?=		/usr/sbin/useradd
 
 # imake installs manpages in weird places
@@ -78,9 +80,6 @@ _OPSYS_NO_WHOLE_ARCHIVE_FLAG=	-z defaultextract
 # incompatible.
 _INCOMPAT_ICONV=	SunOS-*-*
 
-_STRIPFLAG_CC?=		${_INSTALL_UNSTRIPPED:D:U-s}	# cc(1) option to strip
-_STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U-s}	# install(1) option to strip
-
 PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 
 # check for maximum command line length and set it in configure's environment,
@@ -99,3 +98,5 @@ PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/UnixWare.mk b/mk/platform/UnixWare.mk
index fbcbab62c2d..d604401703b 100644
--- a/mk/platform/UnixWare.mk
+++ b/mk/platform/UnixWare.mk
@@ -1,4 +1,4 @@
-# $NetBSD: UnixWare.mk,v 1.24 2007/07/02 14:03:41 joerg Exp $
+# $NetBSD: UnixWare.mk,v 1.25 2007/10/18 21:52:24 rillig Exp $
 #
 # Variable definitions for the UnixWare 7 operating system.
 
@@ -11,19 +11,14 @@ PS?=		/usr/bin/ps
 SU?=		/usr/bin/su
 TYPE?=		/usr/bin/type
 
-CPP_PRECOMP_FLAGS?=	# unset
-DEF_UMASK?=		022
 DEFAULT_SERIAL_DEVICE?=	/dev/null
 EXPORT_SYMBOLS_LDFLAGS?=	# Don't add symbols to the dynamic symbol table
 GROUPADD?=		/usr/sbin/groupadd
 MOTIF_TYPE_DEFAULT?=	dt		# default 2.0 compatible libs type
-NOLOGIN?=		${FALSE}
 ROOT_CMD?=		${SU} - root -c
 ROOT_GROUP?=		root
 ROOT_USER?=		root
 SERIAL_DEVICES?=	/dev/null
-ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
-ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
 ULIMIT_CMD_memorysize?=	ulimit -v `ulimit -H -v`
 USERADD?=		/usr/sbin/useradd
 
@@ -92,3 +87,5 @@ PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
 #GAMEMODE=		2555
 #GAMEDIRMODE=		0775
 #.endif
+
+.include "${.PARSEDIR}/defaults.mk"
diff --git a/mk/platform/defaults.mk b/mk/platform/defaults.mk
new file mode 100644
index 00000000000..07c37957660
--- /dev/null
+++ b/mk/platform/defaults.mk
@@ -0,0 +1,133 @@
+# $NetBSD: defaults.mk,v 1.1 2007/10/18 21:52:24 rillig Exp $
+#
+# This file contains the default values for variables that depend on the
+# base system. It should be included from mk/platform/${OPSYS}.mk after
+# setting the values that differ from the ones mentioned here.
+#
+
+_VARGROUPS+=	platform
+_SYS_VARS.platform=	PKGLOCALEDIR CPP_PRECOMP_FLAGS DEF_UMASK	\
+	NOLOGIN PKG_TOOLS_BIN IMAKE_MAKE
+
+# On some systems, locale files are in lib/locale, on other systems they
+# are in share/locale. The latter is more popular.
+#
+# Keywords: locale
+#
+PKGLOCALEDIR?=		share
+
+# XXX: why aren't these in tools/${OPSYS}.mk?
+#CPP
+#ECHO_N
+#IMAKE_MAKE
+#PS
+#SU
+#TYPE
+#USERADD
+#GROUPADD
+
+# XXX: Is this variable really necessary? It should be possible to
+# embed these flags into CPP for Darwin.
+CPP_PRECOMP_FLAGS?=	# none
+
+# A sensible value for umask. This is only used in the install phase for
+# emitting a warning, since some packages install their files using cp(1).
+#
+# Keywords: umask
+#
+DEF_UMASK?=		0022
+
+#EXPORT_SYMBOLS_LDFLAGS
+#MOTIF_TYPE_DEFAULT
+
+# The program that is run when a user manages to login to an account that
+# has not been intended for interactive use. If your operating system
+# provides a special command for this purpose, you can use that.
+#
+# XXX: Shouldn't this always be an absolute path?
+#
+NOLOGIN?=		${FALSE}
+
+# The directory where the tools for managing binary packages can be
+# found.
+#
+PKG_TOOLS_BIN?=		${LOCALBASE}/sbin
+
+#ROOT_CMD?=		${SU} - root -c
+#ROOT_USER?=		root
+#ROOT_GROUP?=	wheel
+
+# Some packages need more resources than usual for building.
+#
+# See also: UNLIMIT_RESOURCES
+#
+ULIMIT_CMD_datasize?=	ulimit -d `ulimit -H -d`
+ULIMIT_CMD_stacksize?=	ulimit -s `ulimit -H -s`
+ULIMIT_CMD_memorysize?=	ulimit -m `ulimit -H -m`
+
+# The Makefiles generated by imake are so simple that it usually doesn't
+# matter which make(1) utility is used for them. So we just take our
+# bmake as default.
+#
+IMAKE_MAKE?=		${MAKE}
+
+# TODO: Describe the other imake things.
+#
+# Keywords: imake
+#
+#IMAKE_MAN_SOURCE_PATH=	man/cat
+#IMAKE_MANNEWSUFFIX=	0
+#IMAKE_MAN_SUFFIX=	1
+#IMAKE_LIBMAN_SUFFIX=	3
+#IMAKE_KERNMAN_SUFFIX=	${IMAKE_MANNEWSUFFIX}
+#IMAKE_FILEMAN_SUFFIX=	5
+#IMAKE_GAMEMAN_SUFFIX=	${IMAKE_MANNEWSUFFIX}
+#IMAKE_MISCMAN_SUFFIX=	${IMAKE_MANNEWSUFFIX}
+#IMAKE_MAN_DIR=		${IMAKE_MAN_SOURCE_PATH}1
+#IMAKE_LIBMAN_DIR=	${IMAKE_MAN_SOURCE_PATH}3
+#IMAKE_KERNMAN_DIR=	${IMAKE_MAN_SOURCE_PATH}4
+#IMAKE_FILEMAN_DIR=	${IMAKE_MAN_SOURCE_PATH}5
+#IMAKE_GAMEMAN_DIR=	${IMAKE_MAN_SOURCE_PATH}6
+#IMAKE_MISCMAN_DIR=	${IMAKE_MAN_SOURCE_PATH}7
+#IMAKE_MANINSTALL?=	maninstall catinstall
+
+# Some operating systems provide emulation for binaries of other
+# operating systems. See mk/emulator/README for more details.
+#
+#_OPSYS_EMULDIR.*
+
+#_OPSYS_HAS_INET6
+#_OPSYS_HAS_JAVA=	no	# Java is not standard
+#_OPSYS_HAS_MANZ=	yes	# MANZ controls gzipping of man pages
+#_OPSYS_HAS_OSSAUDIO=	yes	# libossaudio is available
+#_OPSYS_PERL_REQD=		# no base version of perl required
+#_OPSYS_PTHREAD_AUTO=	no	# -lpthread needed for pthreads
+#_OPSYS_SHLIB_TYPE=	ELF/a.out	# shared lib type
+#_PATCH_CAN_BACKUP=	yes	# native patch(1) can make backups
+#_PATCH_BACKUP_ARG?=	-V simple -b 	# switch to patch(1) for backup suffix
+#_USE_RPATH=		yes	# add rpath to LDFLAGS
+
+# flags passed to the linker to extract all symbols from static archives.
+# this is GNU ld.
+#_OPSYS_WHOLE_ARCHIVE_FLAG=	-Wl,--whole-archive
+#_OPSYS_NO_WHOLE_ARCHIVE_FLAG=	-Wl,--no-whole-archive
+
+# The option to the C compiler for stripping.
+# XXX: Is this also used for the other compilers?
+# XXX: This should be the plain option and not depend on _INSTALL_UNSTRIPPED.
+#
+_STRIPFLAG_CC?=		${_INSTALL_UNSTRIPPED:D:U-s}
+
+# The install(1) option to strip the installed files.
+# XXX: This should be the plain option and not depend on _INSTALL_UNSTRIPPED.
+#
+_STRIPFLAG_INSTALL?=	${_INSTALL_UNSTRIPPED:D:U-s}	# install(1) option to strip
+
+#DEFAULT_SERIAL_DEVICE
+#SERIAL_DEVICES
+
+#PKG_HAVE_KQUEUE
+
+# check for maximum command line length and set it in configure's environment,
+# to avoid a test required by the libtool script that takes forever.
+#_OPSYS_MAX_CMDLEN_CMD=	/sbin/sysctl -n kern.argmax