abuild: add install_if for -doc packages

This lets users 'apk add docs' to always pull in -doc packages.

1 files changed, 1 insertions, 0 deletions

diff --git a/abuild.in b/abuild.in
index e76d873..41822af 100644
--- a/abuild.in
+++ b/abuild.in
@@ -1391,6 +1391,7 @@ default_doc() {
 	depends="$depends_doc"
 	pkgdesc="$pkgdesc (documentation)"
 	arch=${arch_doc:-"noarch"}
+	install_if="docs $pkgname=$pkgver-r$pkgrel"
 
 	local i
 	for i in doc man info html sgml licenses gtk-doc ri help; do