build-package.sh: fix metapackage creation

Metapackages shouldn't have data inside.

%ci:reset-backlog

packages/build-essential/build.sh

@@ -3,8 +3,8 @@ TERMUX_PKG_DESCRIPTION="A metapackage that installs essential development tools"
 TERMUX_PKG_LICENSE="Public Domain"
 TERMUX_PKG_MAINTAINER="Leonid Plyushch <leonid.plyushch@gmail.com>"
 TERMUX_PKG_VERSION=3.1
-TERMUX_PKG_REVISION=3
-TERMUX_PKG_METAPACKAGE=yes
+TERMUX_PKG_REVISION=4
+TERMUX_PKG_METAPACKAGE=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 
 #
@@ -21,8 +21,3 @@ TERMUX_PKG_DEPENDS="autoconf, automake, bison, clang, cmake, flex, gperf, libtoo
 
 # Other packages that may be interesting.
 TERMUX_PKG_SUGGESTS="git, golang, nodejs, patchelf, proot, python, python2, ruby, rust, subversion"
-
-termux_step_post_massage() {
-	cd "$TERMUX_PKG_MASSAGEDIR"
-	rm -rf data
-}

scripts/build/termux_step_create_datatar.sh

@@ -8,8 +8,14 @@ termux_step_create_datatar() {
 		termux_error_exit "Package contains hard links: $HARDLINKS"
 	fi
 
-	if [ "${TERMUX_PKG_METAPACKAGE-false}" = "false" ] && [ "$(find . -type f)" = "" ]; then
-		termux_error_exit "No files in package"
+	if [ "${TERMUX_PKG_METAPACKAGE-false}" = "true" ]; then
+		# Metapackage doesn't have data inside.
+		rm -rf data
+	else
+		if [ "$(find . -type f)" = "" ]; then
+			termux_error_exit "No files in package"
+		fi
 	fi
+
 	tar -cJf "$TERMUX_PKG_PACKAGEDIR/data.tar.xz" .
 }