Move each package to their own dir

Also support for the $pkgdir variable in build files, which will include
the full path to the directory of the package (for patches, configs etc)

mkfile

@@ -23,11 +23,13 @@ fetch-all fetch-world:VQ: ${fetchpkgs}
 `{ mkdir -p src }
 `{ mkdir -p .cache }
 `{ printf '# auto-generated file, do not edit\n' > pkgs.mk }
-`{ cd pkgs && for pkg in *; do cat $pkg ../stuff/fetch-pkg.mk |\
+`{ cd pkgs && for pkg in *; do cat $pkg/build ../stuff/fetch-pkg.mk |\
 	sed -e "s,^build:,$pkg:QP./stuff/cmp-pkgs: $pkg-fetch pkgs/$pkg," |\
 	sed -e "s,^fetch-target:,$pkg-fetch:," |\
 	sed -e "s,^v=,_${pkg}_v=," |\
+	sed -e "s,^pkgdir=,_${pkg}_pkgdir=$top/pkgs/$pkg," |\
 	sed -e "s,\$v,\${_${pkg}_v},g" |\
+	sed -e "s,\$pkgdir,\${_${pkg}_pkgdir},g" |\
 	sed -e "s,\$url,\${_${pkg}_url},g" |\
 	sed -e "s, url=, _${pkg}_url=,g" |\
 	sed -e "s,\$git,\${_${pkg}_git},g" |\

stuff/cmp-fetch

@@ -1,4 +1,4 @@
 #!/bin/sh
 
 pkg=`echo $1 | sed -e 's,-fetch$,,'`
-cmp -s .cache/$1 pkgs/$pkg
+cmp -s .cache/$1 pkgs/$pkg/build

stuff/cmp-pkgs

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-cmp -s .cache/$1 pkgs/$1
+cmp -s .cache/$1 pkgs/$1/build

stuff/fetch-pkg.mk

@@ -1,4 +1,6 @@
-	cp $top/pkgs/$target $top/.cache/$target
+	cp $pkgdir/build $top/.cache/$target
+
+pkgdir=
 
 fetch-target:QP./stuff/cmp-fetch: .
 	cd src
@@ -30,4 +32,4 @@ fetch-target:QP./stuff/cmp-fetch: .
 			;;
 		esac
 	fi
-	cp $top/pkgs/$pkg $top/.cache/$target
+	cp $pkgdir/build $top/.cache/$target