diff --git a/Mk/mkfile b/Mk/mkfile
--- a/Mk/mkfile
+++ b/Mk/mkfile
@@ -233,14 +233,14 @@ build:QE:	patch
 		rfork ne
 		cd $BUILDPATH
 		if(! ~ $BUILDCOMMAND ''){
-			$BUILDCOMMAND
+			eval $BUILDCOMMAND
 		}
 		if not {
 			status=''
 		}
 		if(! ~ $#POSTBUILD 0){
 			echo 'Running post-build hooks...'
-			$POSTBUILD
+			eval $POSTBUILD
 		}
 	}
 	touch build
@@ -258,7 +258,7 @@ test:VQE:	build
 		rfork ne
 		cd $BUILDPATH
 		if(! ~ $#TESTCOMMAND 0){
-			$TESTCOMMAND
+			eval $TESTCOMMAND
 			if(! ~ $status ''){
 				echo 'Tests failed. Please notify '^$OWNER
 				status='tests failed'
@@ -285,7 +285,7 @@ install:QE:	build
 		}
 	}
 	if(! checkport $PORTNAME){
-		@{ rfork ne; cd $BUILDPATH && $INSTALLCOMMAND } || exit $status
+		@{ rfork ne; cd $BUILDPATH && eval $INSTALLCOMMAND } || exit $status
 		if(! ~ $#VERSION 0){
 			register $PORTNAME $VERSION
 		}
@@ -312,7 +312,7 @@ reinstall:VQE:	build
 	cd $BUILDPATH
 	@{
 		rfork ne
-		$INSTALLCOMMAND
+		eval $INSTALLCOMMAND
 	}
 	if(! ~ $*MESSAGE 0){
 		for(i in $MESSAGE){
@@ -325,7 +325,7 @@ testinstall:VQE:
 	cd $BUILDPATH
 	@{
 		rfork ne
-		$INSTALLCOMMAND
+		eval $INSTALLCOMMAND
 	}
 	if(! ~ $*MESSAGE 0){
 		for(i in $MESSAGE){
@@ -342,7 +342,7 @@ clean:VQE:	$BUILDPATH
 			exit
 		}
 		if(! ~ $#CLEANCOMMAND 0){
-			$CLEANCOMMAND || exit $status
+			eval $CLEANCOMMAND || exit $status
 		}
 	}
 	rm -f build
@@ -381,7 +381,7 @@ uninstall:VQE:
 		@{
 			rfork ne
 			cd $BUILDPATH
-			$UNINSTALLCOMMAND
+			eval $UNINSTALLCOMMAND
 		} || exit $status
 	}
 	deregister $PORTNAME
diff --git a/dev-lang/go-19/mkfile b/dev-lang/go-19/mkfile
--- a/dev-lang/go-19/mkfile
+++ b/dev-lang/go-19/mkfile
@@ -10,7 +10,7 @@ DEPS=app-misc/ca-certificates
 WEBSOURCE=http://9legacy.org/download/go/go$VERSION-plan9-$objtype-bootstrap.tbz
 BUILDPATH=work/go-plan9-$objtype-bootstrap
 BUILDCOMMAND=fortune /lib/rob
-INSTALLCOMMAND=/bin/rc -c '''mkdir -p /sys/lib/go/$objtype-$VERSION && dircp . /sys/lib/go/$objtype-$VERSION'''
+INSTALLCOMMAND=mkdir -p /sys/lib/go/$objtype-$VERSION && dircp . /sys/lib/go/$objtype-$VERSION
 CLEANCOMMAND=fortune /lib/ken
 UNINSTALLCOMMAND=rm -rf /sys/lib/go/$objtype-$VERSION
 MESSAGE='To use go, add this to your profile:' \