From 0a9cf0aeac01657cc6f55946b84ca8b61fe6353f Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Tue, 02 Sep 2014 21:27:33 -0400
Subject: cmd/build: Don't make builddeps dirs if no B-D

Removal of builddeps dirs only happens if there are no build
dependencies.  The same must be true of creation of builddeps dirs.

Fixes issues like:

    pj@debian-x60t:~/proteanos/pkg/expat$ cat control
    Maintainer: "J. Random Hacker" <jrandom@example.com>
    # Build-Depends: opkhelper-3.0
    Homepage: http://expat.sourceforge.net/
    pj@debian-x60t:~/proteanos/pkg/expat$ sudo prokit build $root -b -c -T nop .
    opkbuild: Detecting architecture and platform...
    opkbuild: Making work area...
    opkbuild: Parsing package metadata...
    opkbuild: Build system:
    opkbuild:   Architecture:  i686-linux-glibc
    opkbuild:   Platform:      dev
    opkbuild: Host system:
    opkbuild:   Architecture:  i686-linux-glibc
    opkbuild:   Platform:      dev
    ob-checkbuilddeps: Checking build dependencies...
    ob-buildenv: Setting up build environment...
    ob-unpacksource: Extracting upstream source archive...
    ob-applypatches: No patches to be applied
    ob-installplatconf: No config files to be copied
    mv: cannot move `../root/prokit/build.1556949533/builddeps' to `./../builddeps': Directory not empty
    rmdir: failed to remove `../root/prokit/build.1556949533': Directory not empty
---
diff --git a/lib/cmd/build.sh b/lib/cmd/build.sh
index 9c8cfb6..dca524d 100644
--- a/lib/cmd/build.sh
+++ b/lib/cmd/build.sh
@@ -102,8 +102,7 @@ cmd_build_main()
 	rand
 	dir="/prokit/build.${rand_x}"
 	uname_s="$( (uname -s) 2>/dev/null)" || uname_s='unknown'
-	mkdir -p "${root}${dir}/pkg" "${root}${dir}/builddeps/control" \
-		"${root}${dir}/builddeps/data"
+	mkdir -p "${root}${dir}/pkg"
 	case "${uname_s}" in
 		'Linux')
 			mount -o bind "${prev_arg}" "${root}${dir}/pkg"
@@ -112,6 +111,8 @@ cmd_build_main()
 
 	build_deps="$(package_get_build_deps "${arch}" "${plat}")"
 	if [ "x${build_deps}" != 'x' ]; then
+		mkdir -p "${root}${dir}/builddeps/control" \
+		"${root}${dir}/builddeps/data"
 		cmd_build_make_deps_pkg "${root}${dir}" "${rand_x}" \
 			"${build_deps}"
 	fi
--
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