diff --git a/internal/rosa/acl.go b/internal/rosa/acl.go
index 7369896..f7eaf1c 100644
--- a/internal/rosa/acl.go
+++ b/internal/rosa/acl.go
@@ -7,22 +7,7 @@ func (t Toolchain) newAttr() pkg.Artifact {
 		version  = "2.5.2"
 		checksum = "YWEphrz6vg1sUMmHHVr1CRo53pFXRhq_pjN-AlG8UgwZK1y6m7zuDhxqJhD0SV0l"
 	)
-	return t.New("attr-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Perl),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-	}, nil, nil, `
-ln -s ../../system/bin/perl /usr/bin
-
-cd "$(mktemp -d)"
-/usr/src/attr/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}" \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("attr"), true, t.NewPatchedSource(
+	return t.NewViaMake("attr", version, t.NewPatchedSource(
 		"attr", version, pkg.NewHTTPGetTar(
 			nil, "https://download.savannah.nongnu.org/releases/attr/"+
 				"attr-"+version+".tar.gz",
@@ -67,7 +52,16 @@ index 6ce2f9b..e9bde92 100644
         $ setfattr -n user. -v value f
         > setfattr: f: Invalid argument
 `},
-	)))
+	), &MakeAttr{
+		ScriptEarly: `
+ln -s ../../system/bin/perl /usr/bin
+`,
+		Configure: [][2]string{
+			{"enable-static"},
+		},
+	},
+		t.Load(Perl),
+	)
 }
 func init() { artifactsF[Attr] = Toolchain.newAttr }
 
@@ -83,8 +77,6 @@ func (t Toolchain) newACL() pkg.Artifact {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), &MakeAttr{
-		Writable: true,
-
 		Configure: [][2]string{
 			{"enable-static"},
 		},
diff --git a/internal/rosa/git.go b/internal/rosa/git.go
index e29e203..2364422 100644
--- a/internal/rosa/git.go
+++ b/internal/rosa/git.go
@@ -9,29 +9,64 @@ func (t Toolchain) newGit() pkg.Artifact {
 		version  = "2.52.0"
 		checksum = "uH3J1HAN_c6PfGNJd2OBwW4zo36n71wmkdvityYnrh8Ak0D1IifiAvEWz9Vi9DmS"
 	)
-	return t.New("git-"+version, 0, stage3Concat(t, []pkg.Artifact{},
-		t.Load(Make),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(Perl),
-		t.Load(M4),
-		t.Load(Autoconf),
-		t.Load(Gettext),
-
-		t.Load(Zlib),
-	), nil, nil, `
-cd /usr/src/git
-make configure
-./configure --prefix=/system
-make "-j$(nproc)" all
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("git"), true, t.NewPatchedSource(
+	return t.NewViaMake("git", version, t.NewPatchedSource(
 		"git", version, pkg.NewHTTPGetTar(
 			nil, "https://www.kernel.org/pub/software/scm/git/"+
 				"git-"+version+".tar.gz",
 			mustDecode(checksum),
 			pkg.TarGzip,
 		), false,
-	)))
+	), &MakeAttr{
+		// uses source tree as scratch space
+		Writable: true,
+		InPlace:  true,
+
+		// test suite in subdirectory
+		SkipCheck: true,
+
+		Make: []string{"all"},
+		ScriptEarly: `
+cd /usr/src/git
+
+make configure
+`,
+		Script: `
+ln -s ../../system/bin/perl /usr/bin/ || true
+
+function disable_test {
+	local test=$1 pattern=$2
+	if [ $# -eq 1 ]; then
+		rm "t/${test}.sh"
+	else
+		sed -i "t/${test}.sh" \
+			-e "/^\s*test_expect_.*$pattern/,/^\s*' *\$/{s/^/: #/}"
+	fi
+}
+
+disable_test t5319-multi-pack-index
+disable_test t1305-config-include
+disable_test t3900-i18n-commit
+disable_test t3507-cherry-pick-conflict
+disable_test t4201-shortlog
+disable_test t5303-pack-corruption-resilience
+disable_test t4301-merge-tree-write-tree
+disable_test t8005-blame-i18n
+disable_test t9350-fast-export
+disable_test t9300-fast-import
+
+make \
+	-C t \
+	GIT_PROVE_OPTS="--jobs 32 --failures" \
+	prove
+`,
+	},
+		t.Load(Perl),
+		t.Load(Diffutils),
+		t.Load(M4),
+		t.Load(Autoconf),
+		t.Load(Gettext),
+
+		t.Load(Zlib),
+	)
 }
 func init() { artifactsF[Git] = Toolchain.newGit }
diff --git a/internal/rosa/gnu.go b/internal/rosa/gnu.go
index 6bb7004..a3a4277 100644
--- a/internal/rosa/gnu.go
+++ b/internal/rosa/gnu.go
@@ -1,6 +1,11 @@
 package rosa
 
-import "hakurei.app/internal/pkg"
+import (
+	"runtime"
+	"strconv"
+
+	"hakurei.app/internal/pkg"
+)
 
 func (t Toolchain) newM4() pkg.Artifact {
 	const (
@@ -43,30 +48,21 @@ func (t Toolchain) newAutoconf() pkg.Artifact {
 		version  = "2.72"
 		checksum = "-c5blYkC-xLDer3TWEqJTyh1RLbOd1c5dnRLKsDnIrg_wWNOLBpaqMY8FvmUFJ33"
 	)
-	return t.New("autoconf-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(M4),
-		t.Load(Perl),
-		t.Load(Bash),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(Diffutils),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-/usr/src/autoconf/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}"
-make \
-	"-j$(nproc)" \
-	TESTSUITEFLAGS="-j$(nproc)" \
-	check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("autoconf"), false, pkg.NewHTTPGetTar(
+	return t.NewViaMake("autoconf", version, pkg.NewHTTPGetTar(
 		nil,
 		"https://ftp.gnu.org/gnu/autoconf/autoconf-"+version+".tar.gz",
 		mustDecode(checksum),
 		pkg.TarGzip,
-	)))
+	), &MakeAttr{
+		Env: []string{
+			"TESTSUITEFLAGS=" + strconv.Itoa(runtime.NumCPU()),
+		},
+	},
+		t.Load(M4),
+		t.Load(Perl),
+		t.Load(Bash),
+		t.Load(Diffutils),
+	)
 }
 func init() { artifactsF[Autoconf] = Toolchain.newAutoconf }
 
@@ -178,8 +174,6 @@ func (t Toolchain) newBash() pkg.Artifact {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), &MakeAttr{
-		Writable: true,
-
 		Script: "ln -s bash /work/system/bin/sh\n",
 		Configure: [][2]string{
 			{"without-bash-malloc"},
@@ -227,9 +221,7 @@ func (t Toolchain) newGperf() pkg.Artifact {
 		nil, "https://ftp.gnu.org/pub/gnu/gperf/gperf-"+version+".tar.gz",
 		mustDecode(checksum),
 		pkg.TarGzip,
-	), &MakeAttr{
-		Writable: true,
-	},
+	), nil,
 		t.Load(Diffutils),
 	)
 }
diff --git a/internal/rosa/libexpat.go b/internal/rosa/libexpat.go
index 2139e44..3e094f7 100644
--- a/internal/rosa/libexpat.go
+++ b/internal/rosa/libexpat.go
@@ -11,25 +11,18 @@ func (t Toolchain) newLibexpat() pkg.Artifact {
 		version  = "2.7.3"
 		checksum = "GmkoD23nRi9cMT0cgG1XRMrZWD82UcOMzkkvP1gkwSFWCBgeSXMuoLpa8-v8kxW-"
 	)
-	return t.New("libexpat-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Bash),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-/usr/src/libexpat/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}" \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("libexpat"), false, pkg.NewHTTPGetTar(
+	return t.NewViaMake("libexpat", version, pkg.NewHTTPGetTar(
 		nil, "https://github.com/libexpat/libexpat/releases/download/"+
 			"R_"+strings.ReplaceAll(version, ".", "_")+"/"+
 			"expat-"+version+".tar.bz2",
 		mustDecode(checksum),
 		pkg.TarBzip2,
-	)))
+	), &MakeAttr{
+		Configure: [][2]string{
+			{"enable-static"},
+		},
+	},
+		t.Load(Bash),
+	)
 }
 func init() { artifactsF[Libexpat] = Toolchain.newLibexpat }
diff --git a/internal/rosa/libgd.go b/internal/rosa/libgd.go
index f61e99b..6f2991d 100644
--- a/internal/rosa/libgd.go
+++ b/internal/rosa/libgd.go
@@ -13,8 +13,6 @@ func (t Toolchain) newLibgd() pkg.Artifact {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), &MakeAttr{
-		Writable: true,
-
 		OmitDefaults: true,
 		Env: []string{
 			"TMPDIR=/dev/shm/gd",
diff --git a/internal/rosa/libseccomp.go b/internal/rosa/libseccomp.go
index a2e5ce1..b9b3136 100644
--- a/internal/rosa/libseccomp.go
+++ b/internal/rosa/libseccomp.go
@@ -9,31 +9,25 @@ func (t Toolchain) newLibseccomp() pkg.Artifact {
 		version  = "2.6.0"
 		checksum = "mMu-iR71guPjFbb31u-YexBaanKE_nYPjPux-vuBiPfS_0kbwJdfCGlkofaUm-EY"
 	)
-	return t.New("libseccomp-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Bash),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(Diffutils),
-		t.Load(Gperf),
-
-		t.Load(KernelHeaders),
-	}, nil, nil, `
-ln -s ../system/bin/bash /bin/bash 
-
-cd "$(mktemp -d)"
-/usr/src/libseccomp/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}" \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("libseccomp"), false, pkg.NewHTTPGetTar(
+	return t.NewViaMake("libseccomp", version, pkg.NewHTTPGetTar(
 		nil,
 		"https://github.com/seccomp/libseccomp/releases/download/"+
 			"v"+version+"/libseccomp-"+version+".tar.gz",
 		mustDecode(checksum),
 		pkg.TarGzip,
-	)))
+	), &MakeAttr{
+		ScriptEarly: `
+ln -s ../system/bin/bash /bin/
+`,
+		Configure: [][2]string{
+			{"enable-static"},
+		},
+	},
+		t.Load(Bash),
+		t.Load(Diffutils),
+		t.Load(Gperf),
+
+		t.Load(KernelHeaders),
+	)
 }
 func init() { artifactsF[Libseccomp] = Toolchain.newLibseccomp }
diff --git a/internal/rosa/libxml2.go b/internal/rosa/libxml2.go
index e2dcc4b..12013e5 100644
--- a/internal/rosa/libxml2.go
+++ b/internal/rosa/libxml2.go
@@ -11,29 +11,24 @@ func (t Toolchain) newLibxml2() pkg.Artifact {
 		version  = "2.15.1"
 		checksum = "pYzAR3cNrEHezhEMirgiq7jbboLzwMj5GD7SQp0jhSIMdgoU4G9oU9Gxun3zzUIU"
 	)
-	return t.New("libxml2-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(Diffutils),
-		t.Load(XZ),
-	}, nil, nil, `
-cd /usr/src/
-tar xf libxml2.tar.xz
-mv libxml2-`+version+` libxml2
-
-cd "$(mktemp -d)"
-/usr/src/libxml2/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}" \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("libxml2.tar.xz"), false, pkg.NewHTTPGet(
+	return t.NewViaMake("libxml2", version, pkg.NewHTTPGet(
 		nil, "https://download.gnome.org/sources/libxml2/"+
 			strings.Join(strings.Split(version, ".")[:2], ".")+
 			"/libxml2-"+version+".tar.xz",
 		mustDecode(checksum),
-	)))
+	), &MakeAttr{
+		ScriptEarly: `
+cd /usr/src/
+tar xf libxml2.tar.xz
+mv libxml2-` + version + ` libxml2
+`,
+		Configure: [][2]string{
+			{"enable-static"},
+		},
+		SourceSuffix: ".tar.xz",
+	},
+		t.Load(Diffutils),
+		t.Load(XZ),
+	)
 }
 func init() { artifactsF[Libxml2] = Toolchain.newLibxml2 }
diff --git a/internal/rosa/make.go b/internal/rosa/make.go
index 7d7418f..f47be4e 100644
--- a/internal/rosa/make.go
+++ b/internal/rosa/make.go
@@ -21,8 +21,7 @@ cd "$(mktemp -d)"
 ./build.sh
 ./make DESTDIR=/work install check
 `, pkg.Path(AbsUsrSrc.Append("make"), false, pkg.NewHTTPGetTar(
-		nil,
-		"https://ftp.gnu.org/gnu/make/make-"+version+".tar.gz",
+		nil, "https://ftp.gnu.org/gnu/make/make-"+version+".tar.gz",
 		mustDecode(checksum),
 		pkg.TarGzip,
 	)))
@@ -37,6 +36,8 @@ type MakeAttr struct {
 
 	// Do not include default extras.
 	OmitDefaults bool
+	// Dependencies not provided by stage3.
+	NonStage3 []pkg.Artifact
 
 	// Additional environment variables.
 	Env []string
@@ -45,12 +46,19 @@ type MakeAttr struct {
 	// Runs after cmake.
 	Script string
 
+	// Remain in working directory set up during ScriptEarly.
+	InPlace bool
+
 	// Flags passed to the configure script.
 	Configure [][2]string
+	// Extra make targets.
+	Make []string
 	// Target triple, zero value is equivalent to the Rosa OS triple.
 	Build string
 	// Whether to skip the check target.
 	SkipCheck bool
+	// Name of the check target, zero value is equivalent to "check".
+	CheckName string
 
 	// Suffix appended to the source pathname.
 	SourceSuffix string
@@ -101,30 +109,50 @@ func (t Toolchain) NewViaMake(
 		)
 	}
 
-	defaults := []pkg.Artifact{
+	var buildFlag string
+	if attr.Build != `""` {
+		buildFlag = ` \
+	--build=` + build
+	}
+
+	makeTargets := make([]string, 1, 2+len(attr.Make))
+	if !attr.SkipCheck {
+		if attr.CheckName == "" {
+			makeTargets = append(makeTargets, "check")
+		} else {
+			makeTargets = append(makeTargets, attr.CheckName)
+		}
+	}
+	makeTargets = append(makeTargets, attr.Make...)
+	if len(makeTargets) == 1 {
+		makeTargets = nil
+	}
+
+	finalExtra := []pkg.Artifact{
 		t.Load(Make),
 	}
 	if attr.OmitDefaults || attr.Flag&TEarly == 0 {
-		defaults = append(defaults,
+		finalExtra = append(finalExtra,
 			t.Load(Gawk),
 			t.Load(Coreutils),
 		)
 	}
+	finalExtra = append(finalExtra, extra...)
 
-	var makeSuffix string
-	if !attr.SkipCheck {
-		makeSuffix += " check"
+	scriptEarly := attr.ScriptEarly
+	if !attr.InPlace {
+		scriptEarly += "\ncd \"$(mktemp -d)\""
+	} else if scriptEarly == "" {
+		panic("cannot remain in root")
 	}
 
 	return t.New(name+"-"+version, attr.Flag, stage3Concat(t,
-		defaults,
-		extra...,
-	), nil, attr.Env, attr.ScriptEarly+`
-cd "$(mktemp -d)"
+		attr.NonStage3,
+		finalExtra...,
+	), nil, attr.Env, scriptEarly+`
 /usr/src/`+name+`/configure \
-	--prefix=/system \
-	--build=`+build+configureFlags+`
-make "-j$(nproc)"`+makeSuffix+`
+	--prefix=/system`+buildFlag+configureFlags+`
+make "-j$(nproc)"`+strings.Join(makeTargets, " ")+`
 make DESTDIR=/work install
 `+attr.Script, pkg.Path(AbsUsrSrc.Append(
 		name+attr.SourceSuffix,
diff --git a/internal/rosa/mksh.go b/internal/rosa/mksh.go
index 6e9d00a..ffef8e5 100644
--- a/internal/rosa/mksh.go
+++ b/internal/rosa/mksh.go
@@ -8,7 +8,6 @@ func (t Toolchain) newMksh() pkg.Artifact {
 		checksum = "0Zj-k4nXEu3IuJY4lvwD2OrC2t27GdZj8SPy4DoaeuBRH1padWb7oREpYgwY8JNq"
 	)
 	return t.New("mksh-"+version, 0, stage3Concat(t, []pkg.Artifact{},
-		t.Load(Make),
 		t.Load(Perl),
 		t.Load(Coreutils),
 	), nil, []string{
diff --git a/internal/rosa/pkg-config.go b/internal/rosa/pkg-config.go
index 28a42dc..c5c0814 100644
--- a/internal/rosa/pkg-config.go
+++ b/internal/rosa/pkg-config.go
@@ -14,8 +14,6 @@ func (t Toolchain) newPkgConfig() pkg.Artifact {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), &MakeAttr{
-		Writable: true,
-
 		Configure: [][2]string{
 			{"CFLAGS", "'-Wno-int-conversion'"},
 			{"with-internal-glib"},
diff --git a/internal/rosa/python.go b/internal/rosa/python.go
index 4aca971..81cf9b4 100644
--- a/internal/rosa/python.go
+++ b/internal/rosa/python.go
@@ -12,57 +12,52 @@ func (t Toolchain) newPython() pkg.Artifact {
 		version  = "3.14.2"
 		checksum = "7nZunVMGj0viB-CnxpcRego2C90X5wFsMTgsoewd5z-KSZY2zLuqaBwG-14zmKys"
 	)
-	skipTests := []string{
-		// requires internet access (http://www.pythontest.net/)
-		"test_asyncio",
-		"test_socket",
-		"test_urllib2",
-		"test_urllibnet",
-		"test_urllib2net",
+	return t.NewViaMake("python", version, t.NewPatchedSource("python", version, pkg.NewHTTPGetTar(
+		nil, "https://www.python.org/ftp/python/"+version+
+			"/Python-"+version+".tgz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	), false), &MakeAttr{
+		// test_synopsis_sourceless assumes this is writable and checks __pycache__
+		Writable: true,
 
-		// makes assumptions about uid_map/gid_map
-		"test_os",
-		"test_subprocess",
+		Env: []string{
+			"EXTRATESTOPTS=-j0 -x " + strings.Join([]string{
+				// requires internet access (http://www.pythontest.net/)
+				"test_asyncio",
+				"test_socket",
+				"test_urllib2",
+				"test_urllibnet",
+				"test_urllib2net",
 
-		// somehow picks up mtime of source code
-		"test_zipfile",
+				// makes assumptions about uid_map/gid_map
+				"test_os",
+				"test_subprocess",
 
-		// requires gcc
-		"test_ctypes",
+				// somehow picks up mtime of source code
+				"test_zipfile",
 
-		// breaks on llvm
-		"test_dbm_gnu",
-	}
-	return t.New("python-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Gawk),
-		t.Load(Coreutils),
+				// requires gcc
+				"test_ctypes",
 
+				// breaks on llvm
+				"test_dbm_gnu",
+			}, " -x "),
+
+			// _ctypes appears to infer something from the linker name
+			"LDFLAGS=-Wl,--dynamic-linker=/system/lib/" +
+				"ld-musl-" + linuxArch() + ".so.1",
+		},
+
+		ScriptEarly: `
+export HOME="$(mktemp -d)"
+`,
+
+		CheckName: "test",
+	},
 		t.Load(Zlib),
 		t.Load(Libffi),
-	}, nil, []string{
-		"EXTRATESTOPTS=-j0 -x " + strings.Join(skipTests, " -x "),
-
-		// _ctypes appears to infer something from the linker name
-		"LDFLAGS=-Wl,--dynamic-linker=/system/lib/" +
-			"ld-musl-" + linuxArch() + ".so.1",
-	}, `
-export HOME="$(mktemp -d)"
-cd "$(mktemp -d)"
-/usr/src/python/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}"
-make "-j$(nproc)"
-make test
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("python"), true,
-		// test_synopsis_sourceless assumes this is writable and checks __pycache__
-		t.NewPatchedSource("python", version, pkg.NewHTTPGetTar(
-			nil, "https://www.python.org/ftp/python/"+version+
-				"/Python-"+version+".tgz",
-			mustDecode(checksum),
-			pkg.TarGzip,
-		), false)))
+	)
 }
 func init() { artifactsF[Python] = Toolchain.newPython }
 
diff --git a/internal/rosa/rsync.go b/internal/rosa/rsync.go
index ee2acec..f854b7b 100644
--- a/internal/rosa/rsync.go
+++ b/internal/rosa/rsync.go
@@ -7,24 +7,25 @@ func (t Toolchain) newRsync() pkg.Artifact {
 		version  = "3.4.1"
 		checksum = "VBlTsBWd9z3r2-ex7GkWeWxkUc5OrlgDzikAC0pK7ufTjAJ0MbmC_N04oSVTGPiv"
 	)
-	return t.New("rsync-"+version, TEarly, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Gawk),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-/usr/src/rsync/configure --prefix=/system \
-	--build="${ROSA_TRIPLE}" \
-	--disable-openssl \
-	--disable-xxhash \
-	--disable-zstd \
-	--disable-lz4
-make "-j${nproc}"
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("rsync"), false, pkg.NewHTTPGetTar(
-		nil,
-		"https://download.samba.org/pub/rsync/src/rsync-"+version+".tar.gz",
+	return t.NewViaMake("rsync", version, pkg.NewHTTPGetTar(
+		nil, "https://download.samba.org/pub/rsync/src/"+
+			"rsync-"+version+".tar.gz",
 		mustDecode(checksum),
 		pkg.TarGzip,
-	)))
+	), &MakeAttr{
+		Configure: [][2]string{
+			{"disable-openssl"},
+			{"disable-xxhash"},
+			{"disable-zstd"},
+			{"disable-lz4"},
+		},
+
+		// circular dependency
+		SkipCheck: true,
+
+		Flag: TEarly,
+	},
+		t.Load(Gawk),
+	)
 }
 func init() { artifactsF[Rsync] = Toolchain.newRsync }
diff --git a/internal/rosa/x.go b/internal/rosa/x.go
index 19f3ee6..5cf5b06 100644
--- a/internal/rosa/x.go
+++ b/internal/rosa/x.go
@@ -7,23 +7,17 @@ func (t Toolchain) newXproto() pkg.Artifact {
 		version  = "7.0.23"
 		checksum = "goxwWxV0jZ_3pNczXFltZWHAhq92x-aEreUGyp5Ns8dBOoOmgbpeNIu1nv0Zx07z"
 	)
-	return t.New("xproto-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(PkgConfig),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-/usr/src/xproto/configure \
-	--prefix=/system \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("xproto"), true, pkg.NewHTTPGetTar(
-		nil, "https://www.x.org/releases/X11R7.7/src/proto/xproto-"+version+".tar.bz2",
+	return t.NewViaMake("xproto", version, pkg.NewHTTPGetTar(
+		nil, "https://www.x.org/releases/X11R7.7/src/proto/"+
+			"xproto-"+version+".tar.bz2",
 		mustDecode(checksum),
 		pkg.TarBzip2,
-	)))
+	), &MakeAttr{
+		// buggy configure script
+		Build: `""`,
+	},
+		t.Load(PkgConfig),
+	)
 }
 func init() { artifactsF[Xproto] = Toolchain.newXproto }
 
@@ -32,25 +26,22 @@ func (t Toolchain) newLibXau() pkg.Artifact {
 		version  = "1.0.7"
 		checksum = "bm768RoZZnHRe9VjNU1Dw3BhfE60DyS9D_bgSR-JLkEEyUWT_Hb_lQripxrXto8j"
 	)
-	return t.New("libXau-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(PkgConfig),
-
-		t.Load(Xproto),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-/usr/src/libXau/configure \
-	--prefix=/system \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("libXau"), true, pkg.NewHTTPGetTar(
+	return t.NewViaMake("libXau", version, pkg.NewHTTPGetTar(
 		nil, "https://www.x.org/releases/X11R7.7/src/lib/"+
 			"libXau-"+version+".tar.bz2",
 		mustDecode(checksum),
 		pkg.TarBzip2,
-	)))
+	), &MakeAttr{
+		Configure: [][2]string{
+			{"enable-static"},
+		},
+
+		// buggy configure script
+		Build: `""`,
+	},
+		t.Load(PkgConfig),
+
+		t.Load(Xproto),
+	)
 }
 func init() { artifactsF[LibXau] = Toolchain.newLibXau }
diff --git a/internal/rosa/xcb.go b/internal/rosa/xcb.go
index 3f0e367..b659cf2 100644
--- a/internal/rosa/xcb.go
+++ b/internal/rosa/xcb.go
@@ -12,8 +12,6 @@ func (t Toolchain) newXCBProto() pkg.Artifact {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), &MakeAttr{
-		Writable: true,
-
 		Configure: [][2]string{
 			{"enable-static"},
 		},
@@ -28,28 +26,21 @@ func (t Toolchain) newXCB() pkg.Artifact {
 		version  = "1.17.0"
 		checksum = "hjjsc79LpWM_hZjNWbDDS6qRQUXREjjekS6UbUsDq-RR1_AjgNDxhRvZf-1_kzDd"
 	)
-	return t.New("xcb-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-		t.Load(Gawk),
-		t.Load(Coreutils),
+	return t.NewViaMake("xcb", version, pkg.NewHTTPGetTar(
+		nil, "https://xcb.freedesktop.org/dist/libxcb-"+version+".tar.gz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	), &MakeAttr{
+		Configure: [][2]string{
+			{"enable-static"},
+		},
+	},
 		t.Load(Python),
 		t.Load(PkgConfig),
 
 		t.Load(XCBProto),
 		t.Load(Xproto),
 		t.Load(LibXau),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-/usr/src/xcb/configure \
-	--prefix=/system \
-	--build="${ROSA_TRIPLE}" \
-	--enable-static
-make "-j$(nproc)" check
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("xcb"), true, pkg.NewHTTPGetTar(
-		nil, "https://xcb.freedesktop.org/dist/libxcb-"+version+".tar.gz",
-		mustDecode(checksum),
-		pkg.TarGzip,
-	)))
+	)
 }
 func init() { artifactsF[XCB] = Toolchain.newXCB }
diff --git a/internal/rosa/zlib.go b/internal/rosa/zlib.go
index 55346ee..6ebd5a3 100644
--- a/internal/rosa/zlib.go
+++ b/internal/rosa/zlib.go
@@ -7,19 +7,16 @@ func (t Toolchain) newZlib() pkg.Artifact {
 		version  = "1.3.1"
 		checksum = "E-eIpNzE8oJ5DsqH4UuA_0GDKuQF5csqI8ooDx2w7Vx-woJ2mb-YtSbEyIMN44mH"
 	)
-	return t.New("zlib-"+version, 0, []pkg.Artifact{
-		t.Load(Make),
-	}, nil, nil, `
-cd "$(mktemp -d)"
-CC="clang -fPIC" /usr/src/zlib/configure \
-	--prefix /system
-make "-j$(nproc)" test
-make DESTDIR=/work install
-`, pkg.Path(AbsUsrSrc.Append("zlib"), true,
-		pkg.NewHTTPGetTar(
-			nil, "https://zlib.net/zlib-"+version+".tar.gz",
-			mustDecode(checksum),
-			pkg.TarGzip,
-		)))
+	return t.NewViaMake("zlib", version, pkg.NewHTTPGetTar(
+		nil, "https://zlib.net/zlib-"+version+".tar.gz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	), &MakeAttr{
+		OmitDefaults: true,
+		Env: []string{
+			"CC=clang -fPIC",
+		},
+		Build: `""`,
+	})
 }
 func init() { artifactsF[Zlib] = Toolchain.newZlib }