libgpg-error: fixed musl build to install .pc file.

base/musl/pkg/libgpg-error/libgpg-error.conf

@@ -1,8 +1,8 @@
 # --- SDE-COPYRIGHT-NOTE-BEGIN ---
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
-# Filename: package/.../libgpg-error/libgpg-error.conf
-# Copyright (C) 2013 The OpenSDE Project
+# Filename: package/.../musl/pkg/libgpg-error/libgpg-error.conf
+# Copyright (C) 2013 - 2015 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -12,6 +12,7 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
+autogen=1
 if atstage cross; then
 	var_append confopt ' ' '--disable-nls'
 	confflags="--host=$($CC -dumpmachine | sed 's/musl/gnu/' | sed 's/unknown/pc/')"