polkit: try to unbreak musl build: patch based on the Alpine one.

srcpkgs/polkit/patches/getnetgrent.patch

@@ -0,0 +1,42 @@
+--- configure.ac.orig	2015-05-08 10:21:01.500335031 +0200
++++ configure.ac	2015-05-08 10:21:19.483327115 +0200
+@@ -158,7 +158,7 @@ AC_CHECK_LIB(expat,XML_ParserCreate,[EXP
+ 	     [AC_MSG_ERROR([Can't find expat library. Please install expat.])])
+ AC_SUBST(EXPAT_LIBS)
+ 
+-AC_CHECK_FUNCS(clearenv)
++AC_CHECK_FUNCS(clearenv getnetgrent)
+ 
+ if test "x$GCC" = "xyes"; then
+   LDFLAGS="-Wl,--as-needed $LDFLAGS"
+--- src/polkitbackend/polkitbackendinteractiveauthority.c.orig	2015-05-08 10:22:03.093307918 +0200
++++ src/polkitbackend/polkitbackendinteractiveauthority.c	2015-05-08 10:23:44.516263273 +0200
+@@ -2103,6 +2103,7 @@ get_users_in_group (PolkitIdentity
+   return ret;
+ }
+ 
++#if defined HAVE_GETNETGRENT
+ static GList *
+ get_users_in_net_group (PolkitIdentity                    *group,
+                         gboolean                           include_root)
+@@ -2154,6 +2155,7 @@ get_users_in_net_group (PolkitIdentity
+   endnetgrent ();
+   return ret;
+ }
++#endif
+ 
+ /* ---------------------------------------------------------------------------------------------------- */
+ 
+@@ -2243,10 +2245,12 @@ authentication_agent_initiate_challenge
+         {
+           user_identities = g_list_concat (user_identities, get_users_in_group (identity, FALSE));
+         }
++#if defined HAVE_GETNETGRENT
+       else if (POLKIT_IS_UNIX_NETGROUP (identity))
+         {
+           user_identities =  g_list_concat (user_identities, get_users_in_net_group (identity, FALSE));
+         }
++#endif
+       else
+         {
+           g_warning ("Unsupported identity");

srcpkgs/polkit/template

@@ -1,7 +1,7 @@
 # Template file for 'polkit'
 pkgname=polkit
 version=0.112
-revision=9
+revision=10
 build_pie=yes
 build_style=gnu-configure
 configure_args="$(vopt_enable gir introspection)
@@ -14,8 +14,8 @@ license="GPL-2"
 distfiles="${FREEDESKTOP_SITE}/${pkgname}/releases/${pkgname}-${version}.tar.gz"
 checksum=d695f43cba4748a822fbe864dd32c4887c5da1c71694a47693ace5e88fcf6af6
 
-hostmakedepends="pkg-config intltool libxslt docbook-xsl glib-devel
- $(vopt_if gir gobject-introspection)"
+hostmakedepends="automake libtool gettext-devel pkg-config intltool libxslt
+ docbook-xsl glib-devel gtk-doc gobject-introspection"
 makedepends="libglib-devel expat-devel pam-devel mozjs17-devel
  $(vopt_if systemd systemd-devel)"
 system_accounts="polkitd"
@@ -26,16 +26,12 @@ make_dirs="
 # Package build options
 build_options="gir systemd"
 # Disable gir for cross builds.
-if [ "$CROSS_BUILD" ]; then
-	hostmakedepends+=" automake libtool gettext-devel gtk-doc gobject-introspection"
-else
+if [ -z "$CROSS_BUILD" ]; then
 	build_options_default+=" gir"
 fi
 
 pre_configure() {
-	if [ "$CROSS_BUILD" ]; then
-		autoreconf -fi
-	fi
+	autoreconf -fi
 	# Drop requirement of /sys/fs/cgroup/systemd test in configure... WTF.
 	sed -e 's,/sys/fs/cgroup/systemd/,/sys/fs/cgroup,g' -i configure
 }