Virt_cacard is no longer buildable as a submodule within OpenSC

Makefile.am

@@ -1,4 +1,3 @@
-MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
 EXTRA_DIST = setup-softhsm2.sh 
 
 AM_CFLAGS = -Wall 

README.md

@@ -9,7 +9,7 @@ Virtual CAC using libcacard, virtualsmartcard's vpcd and softhsm2 to provide PCS
 
 The [virtual pcscd](https://github.com/frankmorgner/vsmartcard/tree/master/virtualsmartcard) provides a socket based interface on one side, and the classic PCSC API on the other.
 
-[OpenSC](https://github.com/OpenSC/OpenSC) natively uses the PCSC API to communicate with smart cards. The vpcd relays those communications through its socket. This should work with any application using the PCSC API, but virt_cacard was designed to help with the CI/CD of OpenSC.
+To use virt_cacard, you need a program (such as [OpenSC](https://github.com/OpenSC/OpenSC)'s tools that uses the PCSC API to communicate with smart cards. The vpcd relays those communications through its socket. This should work with any application using the PC/SC API, but virt_cacard was designed to help with the CI/CD of OpenSC.
 
 The virtual smart card, emulated with [libcacard](https://gitlab.freedesktop.org/spice/libcacard/), connects to the socket and can then get (and reply to) APDUs from the application. From the point of view of the application, the process is transparent. 
 
@@ -18,17 +18,6 @@ OpenSC tests:                    [![virt_cacard](https://gitlab.com/PL4typus/Ope
 ---
 ## How to build virt_cacard
 
-At the time of writing, I recommend building from OpenSC as it is the most up to date and tested version.
-
-### How to build from OpenSC (*integration* branch only)
-
-    ./bootstrap
-    ./configure --enable-virt_cacard
-    make -j4 && make check
-
----
-### Standalone build (*current* branch only)
-
     ./autogen.sh
     ./configure
     make

autogen.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+autoreconf --install --verbose --symlink

build-aux/compile

@@ -0,0 +1 @@
+/usr/share/automake-1.16/compile

build-aux/depcomp

@@ -0,0 +1 @@
+/usr/share/automake-1.16/depcomp

build-aux/install-sh

@@ -0,0 +1 @@
+/usr/share/automake-1.16/install-sh

build-aux/missing

@@ -0,0 +1 @@
+/usr/share/automake-1.16/missing

configure.ac

@@ -0,0 +1,40 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+AC_INIT([virt_cacard], [1], [[email protected]])
+AC_CONFIG_SRCDIR([src/connection.h])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_AUX_DIR([build-aux])
+
+# Checks for programs.
+AC_PROG_CC
+
+# Checks for libraries.
+PKG_CHECK_MODULES([CACARD], [libcacard])
+AC_SUBST(CACARD_CFLAGS)
+AC_SUBST(CACARD_LIBS)
+
+
+PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.22])
+AC_SUBST(GLIB_CFLAGS)
+AC_SUBST(GLIB_LIBS)
+
+
+# Checks for header files.
+AC_CHECK_HEADERS([arpa/inet.h netdb.h netinet/in.h stdint.h stdlib.h string.h sys/socket.h unistd.h ],
+                 [],
+                 [AC_MSG_ERROR([unable to find all required headers])
+])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_INLINE
+AC_TYPE_UINT16_T
+AC_TYPE_UINT8_T
+
+# Checks for library functions.
+AC_CHECK_FUNCS([memset socket])
+
+AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT