main/lua5.3: improve abuild

main/lua5.3/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=lua5.3
+_pkgname=lua
 pkgver=5.3.2
 _luaver=${pkgname#lua}
 pkgrel=0
@@ -7,49 +8,43 @@ pkgdesc="Powerful light-weight programming language"
 url="http://www.lua.org/"
 arch="all"
 license="MIT"
-depends=
 ldpath="/usr/lib/$pkgname"
+depends_dev="$pkgname"
 makedepends="libtool autoconf automake linenoise-dev"
 subpackages="$pkgname-dev $pkgname-doc $pkgname-libs"
-source="http://www.lua.org/ftp/lua-$pkgver.tar.gz
+source="http://www.lua.org/ftp/$_pkgname-$pkgver.tar.gz
 	lua-5.3-make.patch
 	lua-5.3-module_paths.patch
 	linenoise.patch
 	"
+builddir="$srcdir/$_pkgname-$pkgver"
 
-_builddir="$srcdir"/lua-$pkgver
 prepare() {
-	cd "$_builddir"
-	for i in $source; do
-		case $i in
-		patch*|*.patch)
-			msg "Applying $i"
-			patch -p1 -i "$srcdir"/$i || return 1
-			;;
-		esac
-	done
+	default_prepare || return 1
+	cd "$builddir"
 
 	# disable readline
 	sed -i -e '/#define LUA_USE_READLINE/d' src/luaconf.h
 
 	# we use libtool
-	cat >configure.ac <<EOF
-top_buildir=.
+	cat > configure.ac <<-EOF
+		top_buildir=.
 
-AC_INIT(src/luaconf.h)
-AC_PROG_LIBTOOL
-AC_OUTPUT()
-EOF
+		AC_INIT(src/luaconf.h)
+		AC_PROG_LIBTOOL
+		AC_OUTPUT()
+	EOF
 	libtoolize --force --install && aclocal && autoconf
 }
 
 build() {
-	cd "$_builddir"
+	cd "$builddir"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
 		--prefix=/usr \
 		|| return 1
+
 	cd src
 	make V=${pkgver%.*} \
 		CFLAGS="-DLUA_USE_LINUX -DLUA_COMPAT_5_2 -DLUA_USE_LINENOISE" \
@@ -60,7 +55,9 @@ build() {
 }
 
 package() {
-	cd "$_builddir"
+	local i
+	cd "$builddir"
+
 	make V=${pkgver%.*} \
 		INSTALL_TOP="$pkgdir"/usr \
 		INSTALL_INC="$pkgdir"/usr/include/$pkgname \
@@ -82,45 +79,45 @@ package() {
 		|| return 1
 
 	install -d "$pkgdir"/usr/lib/pkgconfig
-	cat > "$pkgdir"/usr/lib/pkgconfig/lua$_luaver.pc <<EOF
-# lua.pc -- pkg-config data for Lua
-
-# vars from install Makefile
-
-# grep '^V=' ../Makefile
-V= ${_luaver}
-# grep '^R=' ../Makefile
-R= ${pkgver}
-
-# grep '^INSTALL_.*=' ../Makefile | sed 's/INSTALL_TOP/prefix/'
-prefix= /usr
-INSTALL_BIN= \${prefix}/bin
-INSTALL_INC= \${prefix}/include
-INSTALL_LIB= \${prefix}/lib
-INSTALL_MAN= \${prefix}/man/man1
-INSTALL_LMOD= \${prefix}/share/lua/\${V}
-INSTALL_CMOD= \${prefix}/lib/lua/\${V}
-
-# canonical vars
-exec_prefix=\${prefix}
-libdir=\${exec_prefix}/lib/$pkgname
-includedir=\${prefix}/include/$pkgname
-
-Name: Lua
-Description: An Extensible Extension Language
-Version: \${R}
-Requires:
-Libs: -L\${libdir} -llua -lm
-Cflags: -I\${includedir}
-
-# (end of lua$_luaver.pc)
-EOF
+	cat > "$pkgdir"/usr/lib/pkgconfig/lua$_luaver.pc <<-EOF
+		# lua.pc -- pkg-config data for Lua
+		
+		# vars from install Makefile
+		
+		# grep '^V=' ../Makefile
+		V= ${_luaver}
+		# grep '^R=' ../Makefile
+		R= ${pkgver}
+		
+		# grep '^INSTALL_.*=' ../Makefile | sed 's/INSTALL_TOP/prefix/'
+		prefix= /usr
+		INSTALL_BIN= \${prefix}/bin
+		INSTALL_INC= \${prefix}/include
+		INSTALL_LIB= \${prefix}/lib
+		INSTALL_MAN= \${prefix}/man/man1
+		INSTALL_LMOD= \${prefix}/share/lua/\${V}
+		INSTALL_CMOD= \${prefix}/lib/lua/\${V}
+		
+		# canonical vars
+		exec_prefix=\${prefix}
+		libdir=\${exec_prefix}/lib/$pkgname
+		includedir=\${prefix}/include/$pkgname
+		
+		Name: Lua
+		Description: An Extensible Extension Language
+		Version: \${R}
+		Requires:
+		Libs: -L\${libdir} -llua -lm
+		Cflags: -I\${includedir}
+		
+		# (end of lua$_luaver.pc)
+	EOF
 
 }
 
 dev() {
-	depends_dev=$pkgname
-	default_dev
+	default_dev || return 1
+
 	mkdir -p "$subpkgdir"/usr/$pkgname "$subpkgdir"/usr/lib/$pkgname
 	ln -s ../include/$pkgname "$subpkgdir"/usr/$pkgname/include || return 1
 	ln -s ../lib/$pkgname "$subpkgdir"/usr/$pkgname/lib || return 1
@@ -131,6 +128,7 @@ dev() {
 libs() {
 	pkgdesc="Lua dynamic library runtime"
 	replaces="lua"
+
 	mkdir -p "$subpkgdir"/usr
 	mv "$pkgdir"/usr/lib "$subpkgdir"/usr/
 }