internal/rosa/make: configurable configure and install

This makes the helper useful for non-autotools build systems.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/make.go

@@ -51,6 +51,8 @@ type MakeAttr struct {
 	// Remain in working directory set up during ScriptEarly.
 	InPlace bool
 
+	// Whether to skip running the configure script.
+	SkipConfigure bool
 	// Flags passed to the configure script.
 	Configure [][2]string
 	// Extra make targets.
@@ -61,10 +63,14 @@ type MakeAttr struct {
 	SkipCheck bool
 	// Name of the check target, zero value is equivalent to "check".
 	CheckName string
+	// Replaces the default install command.
+	ScriptInstall string
 
 	// Suffix appended to the source pathname.
 	SourceSuffix string
 
+	// Passed through to [Toolchain.New], before source.
+	Paths []pkg.ExecPath
 	// Passed through to [Toolchain.New].
 	Flag int
 }
@@ -87,34 +93,39 @@ func (t Toolchain) NewViaMake(
 		build = attr.Build
 	}
 
-	var configureFlags string
-	if len(attr.Configure) > 0 {
-		const sep = " \\\n\t"
-		configureFlags += sep + strings.Join(
-			slices.Collect(func(yield func(string) bool) {
-				for _, v := range attr.Configure {
-					s := v[0]
-					if v[1] == "" || (v[0] != "" &&
-						v[0][0] >= 'a' &&
-						v[0][0] <= 'z') {
-						s = "--" + s
-					}
-					if v[1] != "" {
-						s += "=" + v[1]
-					}
-					if !yield(s) {
-						return
-					}
-				}
-			}),
-			sep,
-		)
-	}
+	var configure string
+	if !attr.SkipConfigure {
+		configure += `
+/usr/src/` + name + `/configure \
+	--prefix=/system`
 
-	var buildFlag string
-	if attr.Build != `""` {
-		buildFlag = ` \
+		if attr.Build != `""` {
+			configure += ` \
 	--build=` + build
+		}
+
+		if len(attr.Configure) > 0 {
+			const sep = " \\\n\t"
+			configure += sep + strings.Join(
+				slices.Collect(func(yield func(string) bool) {
+					for _, v := range attr.Configure {
+						s := v[0]
+						if v[1] == "" || (v[0] != "" &&
+							v[0][0] >= 'a' &&
+							v[0][0] <= 'z') {
+							s = "--" + s
+						}
+						if v[1] != "" {
+							s += "=" + v[1]
+						}
+						if !yield(s) {
+							return
+						}
+					}
+				}),
+				sep,
+			)
+		}
 	}
 
 	makeTargets := make([]string, 1, 2+len(attr.Make))
@@ -148,15 +159,20 @@ func (t Toolchain) NewViaMake(
 		panic("cannot remain in root")
 	}
 
+	scriptInstall := attr.ScriptInstall
+	if scriptInstall == "" {
+		scriptInstall = "make DESTDIR=/work install"
+	}
+	scriptInstall += "\n"
+
 	return t.New(name+"-"+version, attr.Flag, stage0Concat(t,
 		attr.NonStage0,
 		finalExtra...,
-	), nil, attr.Env, scriptEarly+`
-/usr/src/`+name+`/configure \
-	--prefix=/system`+buildFlag+configureFlags+attr.ScriptConfigured+`
+	), nil, attr.Env, scriptEarly+configure+attr.ScriptConfigured+`
 make "-j$(nproc)"`+strings.Join(makeTargets, " ")+`
-make DESTDIR=/work install
-`+attr.Script, pkg.Path(AbsUsrSrc.Append(
-		name+attr.SourceSuffix,
-	), attr.Writable, source))
+`+scriptInstall+attr.Script, slices.Concat(attr.Paths, []pkg.ExecPath{
+		pkg.Path(AbsUsrSrc.Append(
+			name+attr.SourceSuffix,
+		), attr.Writable, source),
+	})...)
 }