express: Update autogen.sh for meson

autogen.sh

@@ -1,24 +1,5 @@
 #!/bin/sh
 
-test -n "$srcdir" || srcdir=`dirname "$0"`
-test -n "$srcdir" || srcdir=.
-  (
-    cd "$srcdir" &&
-      (
-        rm -rf autom4te.cache
-        rm -f aclocal.m4 ltmain.sh
-        touch README
-        touch ABOUT-NLS
-
-        echo "Running autopoint..." ; autopoint -f || :
-        echo "Running aclocal..." ; aclocal -I m4 $ACLOCAL_FLAGS || exit 1
-        echo "Running autoconf..." ; autoconf || exit 1
-        echo "Running autoheader..." ; autoheader || exit 1
-        echo "Running libtoolize..." ; (libtoolize --copy --automake || glibtoolize --automake) || exit 1
-        echo "Running automake..." ; automake --add-missing --copy --gnu || exit 1
-     )
-  )
-
-if [ -z "$NOCONFIGURE" ]; then
-	$srcdir/configure "$@"
-fi
+rm -rf build
+meson $@ . build
+meson configure build