abuild: add depends_libs variable to default_libs()

Other subpackage such as -dev, -doc and even -openrc allow adjusting
depends of the subpackage through such a variable. This is, for
instance, useful to remove a dependency of the origin package from the
-libs subpackage.

While at it document it in APKBUILD(5).

1 files changed, 2 insertions, 0 deletions

diff --git a/APKBUILD.5 b/APKBUILD.5
index 81a74ae..bfd7a61 100644
--- a/APKBUILD.5
+++ b/APKBUILD.5
@@ -404,6 +404,8 @@ variables.
 .Bl -tag -width Ds
 .It Cm depends_dev
 Specifies the run-time dependencies of the -dev subpackage.
+.It Cm depends_libs
+Specifies the run-time dependencies of the -libs subpackage.
 .It Cm giturl
 Specifies the URL of the Git repository to use with
 .Cm abuild checkout .