Revert "autogen: just call autoreconf"

This reverts commit
6d156cab3f. `config.guess` and
`config.sub` are required, and they're only generated by `automake`,
even though `automake` itself isn't used.

autogen.sh

@@ -1,3 +1,78 @@
 #!/bin/sh
+# Run this to set up the build system: configure, makefiles, etc.
+# (based on the version in enlightenment's cvs)
 
-exec autoreconf -fi
+package="mkvtoolnix"
+
+olddir=`pwd`
+srcdir=`dirname $0`
+test -z "$srcdir" && srcdir=.
+
+cd "$srcdir"
+DIE=0
+
+(autoconf --version) < /dev/null > /dev/null 2>&1 || {
+  echo
+  echo "You must have autoconf installed to compile $package."
+  echo "Download the appropriate package for your distribution,"
+  echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+  DIE=1
+}
+
+(autoheader --version) < /dev/null > /dev/null 2>&1 || {
+  echo
+  echo "You must have autoheader installed to compile $package."
+  echo "Download the appropriate package for your distribution,"
+  echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+  DIE=1
+}
+
+# (automake --version) < /dev/null > /dev/null 2>&1 || {
+#   echo
+#   echo "You must have automake installed to compile $package."
+#   echo "Download the appropriate package for your system,"
+#   echo "or get the source from one of the GNU ftp sites"
+#   echo "listed in http://www.gnu.org/order/ftp.html"
+#   DIE=1
+# }
+
+# (libtool --version) < /dev/null > /dev/null 2>&1 || {
+#   echo
+#   echo "You must have libtool installed to compile $package."
+#   echo "Download the appropriate package for your system,"
+#   echo "or get the source from one of the GNU ftp sites"
+#   echo "listed in http://www.gnu.org/order/ftp.html"
+#   DIE=1
+# }
+
+if test "$DIE" -eq 1; then
+        exit 1
+fi
+
+export WANT_AUTOCONF_2_5=1
+AUTOCONFVER=`autoconf --version | head -n 1 | sed 's;[^0-9\.];;g'`
+case $AUTOCONFVER in
+  2.1*)
+    echo autoconf 2.5 or later is required to build mkvtoolnix.
+    echo "Download the appropriate package for your distribution,"
+    echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+    exit 1
+    ;;
+esac
+
+echo "Generating configuration files for $package, please wait...."
+
+rm -f config.h config.h.in stamp-h1 &> /dev/null
+
+#echo "  aclocal $ACLOCAL_FLAGS" && aclocal $ACLOCAL_FLAGS
+echo "  autoheader" && autoheader
+#echo "  libtoolize --automake" && libtoolize --automake
+echo "  autoconf" && autoconf
+# Ignore automake errors. We need config.sub and config.guess
+# which are copied by automake, but we don't use automake for
+# managing Makefiles.
+echo "  automake --add-missing --copy" && automake --add-missing --copy 2> /dev/null
+
+echo
+echo "You can run './configure' followed by 'rake' now."
+cd $olddir