Restructured paths

1. build is in build/$(arch)
2. tooldir is in build/toolchain-$(arch)
3. global_srcdir is in build/src-{world,toolchain}
4. global_objdir is in build/obj-{world,toolchain}

world/Makefile

@@ -100,16 +100,11 @@ subdirs += libnl
 subdirs += wpa_supplicant
 endif
 
-installdirs = $(build)/src $(build)/obj
-
 all: $(subdirs)
 
-$(subdirs): | $(installdirs)
+$(subdirs):
 	$(MAKE) -C $@
 
-$(installdirs):
-	install -d $@
-
 clean:
 	for subdir in $(subdirs) ; \
 		do $(MAKE) -C $${subdir} clean ; done
@@ -118,4 +113,4 @@ distclean: clean
 	for subdir in $(subdirs) ; \
 		do $(MAKE) -C $${subdir} distclean ; done
 
-.PHONY: ${subdirs} all clean distclean
+.PHONY: $(subdirs) all clean distclean

world/mandoc/Makefile

@@ -1,6 +1,6 @@
-#  Makefile - hhl - /usr/src/world/mandoc
+#  Makefile - hhl - /src/world/mandoc
 #  Copyright 2020 Nathan Fisher <nfisher.sr@gmail.com>
-#  
+#
 distname       = mandoc
 distext        = gz
 

world/mandoc/Makefile.local

@@ -1,10 +1,10 @@
-BUILD_TARGETS	= 
-INSTALL_TARGETS	= 
+BUILD_TARGETS	=
+INSTALL_TARGETS	=
 CC		= $(tgt_cc)
 CFLAGS		= -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter
-CFLAGS         += --sysroot=/src/build
+CFLAGS         += --sysroot=$(DESTDIR)
 LDADD		=     -lz
-LDFLAGS		= 
+LDFLAGS		=
 STATIC		= -static
 PREFIX		= /usr
 BINDIR		= /usr/bin

world/zstd/Makefile

@@ -7,7 +7,7 @@ no_objdir     = 1
 use_configure = 0
 include world.mk
 export CC     = $(tgt)-gcc
-export CFLAGS = --sysroot=/src/build -Wall -O2
+export CFLAGS = --sysroot=$(build) -Wall -O2
 install_cmd = $(MAKE) prefix=/usr DESTDIR=$(DESTDIR) -C $(srcdir) install
 
 define post_install