trigger ldconfig to regerenate ld.so.cache on lib dir changes

related to #6

APKBUILD

@@ -3,20 +3,22 @@
 pkgname="glibc"
 pkgver="2.22"
 _pkgrel="5"
-pkgrel="7"
+pkgrel="8"
 pkgdesc="GNU C Library compatibility layer"
 arch="x86_64"
 url="https://github.com/gliderlabs/alpine-glibc"
 license="GPL"
 source="https://github.com/andyshinn/docker-glibc-builder/releases/download/$pkgver-$_pkgrel/glibc-bin-$pkgver-$_pkgrel-x86_64.tar.gz
-nsswitch.conf"
+nsswitch.conf
+ld.so.conf"
 subpackages="$pkgname-bin $pkgname-i18n"
+triggers="$pkgname-bin.trigger=/lib:/usr/lib:/usr/glibc-compat/lib"
 
 package() {
   mkdir -p "$pkgdir/lib64" "$pkgdir/usr/glibc-compat/lib/locale" "$pkgdir"/etc
   cp -a "$srcdir"/usr "$pkgdir"
   cp "$srcdir"/nsswitch.conf "$pkgdir"/etc/nsswitch.conf
-  touch "$pkgdir"/usr/glibc-compat/etc/ld.so.conf
+  cp "$srcdir"/ld.so.conf "$pkgdir"/usr/glibc-compat/etc/ld.so.conf
   rm "$pkgdir"/usr/glibc-compat/etc/rpc
   rm -rf "$pkgdir"/usr/glibc-compat/bin
   rm -rf "$pkgdir"/usr/glibc-compat/sbin
@@ -31,7 +33,7 @@ package() {
 }
 
 bin() {
-  depends="$pkgname"
+  depends="$pkgname libgcc"
   mkdir -p "$subpkgdir"/usr/glibc-compat
   cp -a "$srcdir"/usr/glibc-compat/bin "$subpkgdir"/usr/glibc-compat
   cp -a "$srcdir"/usr/glibc-compat/sbin "$subpkgdir"/usr/glibc-compat
@@ -45,4 +47,5 @@ i18n() {
 }
 
 md5sums="4f2ea9f8cc1be716479f831597a14682  glibc-bin-2.22-5-x86_64.tar.gz
-5be984273de4203318c9c3fb0d4e9d2b  nsswitch.conf"
+5be984273de4203318c9c3fb0d4e9d2b  nsswitch.conf
+b4a846d17bde75e47976d972c4e067a5  ld.so.conf"

glibc-bin.trigger

@@ -0,0 +1,2 @@
+#!/bin/sh
+/usr/glibc-compat/sbin/ldconfig

ld.so.conf

@@ -0,0 +1,3 @@
+/usr/glibc-compat/lib
+/usr/lib
+/lib