extra/glib: remove -w from perl script

busybox env does not handle it correctly so we make a workaround

extra/glib/APKBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Carlo Landmeter <clandmeter at gmail.com>
 pkgname=glib
 pkgver=2.20.4
-pkgrel=0
+pkgrel=1
 pkgdesc="Common C routines used by Gtk+ and other libs"
 url="http://www.gtk.org"
 license='GPL'
@@ -15,6 +15,9 @@ depends_dev="perl gettext-dev libiconv-dev"
 build() {
 	cd "$srcdir/$pkgname-$pkgver"
 
+	# busybox env does not handle the -w after perl. we remove it for now
+	sed -i -e '1,1s/ -w//' gobject/glib-mkenums.in
+
 	./configure --prefix=/usr \
 		--mandir=/usr/share/man
 	make || return 1