Introduce more knobs to slim down FreeBSD userland

NO_TOOLCHAIN	skips Compilers and Binutils
NO_USB		skips USB stuff
NO_VINUM	skips Vinum stuff
NO_ACPI		skips ACPI stuff

gnu/usr.bin/Makefile

@@ -1,8 +1,13 @@
 # $FreeBSD$
 
-SUBDIR= bc binutils cc cpio dc dialog diff diff3 \
+SUBDIR= bc ${_binutils} ${_cc} cpio dc dialog diff diff3 \
 	${_gperf} grep gzip man patch rcs sdiff send-pr sort tar texinfo
 
+.if !defined(NO_TOOLCHAIN)
+_cc=cc
+_binutils=binutils
+.endif
+
 .if !defined(NO_CXX)
 .if ${MACHINE_ARCH} != "powerpc"
 _gperf=gperf

lib/Makefile

@@ -29,7 +29,7 @@ SUBDIR=	${_csu} libcom_err libcrypt libkvm msun libmd \
 	libipx libisc libmenu ${_libmilter} ${_libmp} ${_libncp} \
 	libnetgraph libopie libpam libpanel libpcap ${_libpthread} \
 	${_libsm} ${_libsmb} ${_libsmdb} ${_libsmutil} \
-	libstand libtelnet ${_libthr} libufs libugidfw libusbhid \
+	libstand libtelnet ${_libthr} libufs libugidfw ${_libusbhid} \
 	${_libvgl} libwrap libxpg4 liby libz
 
 .if exists(${.CURDIR}/csu/${MACHINE_ARCH}-elf)
@@ -62,6 +62,10 @@ _libsmdb=	libsmdb
 _libsmutil=	libsmutil
 .endif
 
+.if !defined(NO_USB)
+_libusbhid=	libusbhid
+.endif
+
 .if ${MACHINE_ARCH} == "i386"
 _compat=	compat
 _libncp=	libncp

sbin/Makefile

@@ -74,8 +74,7 @@ SUBDIR=	adjkerntz \
 	swapon \
 	sysctl \
 	tunefs \
-	umount \
+	umount
-	vinum
 
 .if !defined(NOATM)
 SUBDIR+=atm
@@ -98,6 +97,10 @@ SUBDIR+=ip6fw \
 	ping6
 .endif
 
+.if !defined(NO_VINUM)
+SUBDIR+=vinum
+.endif
+
 .if ${MACHINE_ARCH} == "i386"
 SUBDIR+=cxconfig
 .if ${MACHINE} == "pc98"

usr.bin/Makefile

@@ -8,11 +8,19 @@
 #
 
 .if ${MACHINE_ARCH} != "ia64"
+.if !defined(NO_TOOLCHAIN)
 _xlint=	xlint
+_lex=	lex
+_yacc=	yacc
+_c88=	c88
+_c98=	c98
+.endif
 .endif
 
 .if ${MACHINE_ARCH} != "powerpc" && ${MACHINE_ARCH} != "amd64"
+.if !defined(NO_TOOLCHAIN)
 _gprof=	gprof
+.endif
 _truss=	truss
 .endif
 
@@ -27,8 +35,8 @@ SUBDIR=	alias \
 	brandelf \
 	bzip2 \
 	bzip2recover \
-	c89 \
+	${_c89} \
-	c99 \
+	${_c99} \
 	calendar \
 	cap_mkdb \
 	catman \
@@ -96,7 +104,7 @@ SUBDIR=	alias \
 	less \
 	lessecho \
 	lesskey \
-	lex \
+	${_lex} \
 	limits \
 	locale \
 	locate \
@@ -188,8 +196,6 @@ SUBDIR=	alias \
 	uniq \
 	units \
 	unvis \
-	usbhidaction \
-	usbhidctl \
 	users \
 	uudecode \
 	uuencode \
@@ -212,7 +218,7 @@ SUBDIR=	alias \
 	xinstall \
 	${_xlint} \
 	xstr \
-	yacc \
+	${_yacc} \
 	yes \
 	ypcat \
 	ypmatch \
@@ -229,6 +235,11 @@ SUBDIR+=dig \
 SUBDIR+=vacation
 .endif
 
+.if !defined(NO_USB)
+SUBDIR+=usbhidaction \
+	usbhidctl
+.endif
+
 .if ${MACHINE_ARCH} == "i386"
 # Things that don't compile on alpha or are aout specific:
 SUBDIR+=doscmd \

usr.sbin/Makefile

@@ -114,8 +114,6 @@ SUBDIR=	IPXrouted \
 	trpt \
 	tzsetup \
 	ugidfw \
-	usbd \
-	usbdevs \
 	vidcontrol \
 	vipw \
 	vnconfig \
@@ -148,6 +146,10 @@ SUBDIR+=ipftest \
 	iptest
 .endif
 
+.if !defined(NO_USB)
+SUBDIR+=usbd \
+	usbdevs
+.endif
 .if !defined(NOLIBC_R) && ${MACHINE_ARCH} != "powerpc"
 SUBDIR+=pppctl
 .endif
@@ -179,8 +181,7 @@ SUBDIR+=elf2exe \
 .endif
 
 .if ${MACHINE_ARCH} == "i386"
-SUBDIR+=acpi \
+SUBDIR+=apm \
-	apm \
 	apmd \
 	asf \
 	btxld \
@@ -199,9 +200,15 @@ SUBDIR+=acpi \
 	stallion \
 	wlconfig \
 	zzz
+
+.if !defined(NO_ACPI)
+SUBDIR+=acpi
+.endif
+
 .if !defined(NO_I4B)
 SUBDIR+=i4b
 .endif
+
 .endif
 
 # kgmon: builds, but no kernel profiling