Add Autoconf setup.

configure.ac

@@ -0,0 +1,23 @@
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+AC_PREREQ([2.50])
+
+AC_INIT([libmimetic], [0.1], [Bard.Skaflestad@sintef.no])
+
+AM_INIT_AUTOMAKE([foreign])
+
+LT_INIT
+
+AC_PROG_CC
+
+AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_SRCDIR([mimetic.h])
+AM_CONFIG_HEADER([config.h])
+
+AX_LAPACK
+
+AC_CONFIG_FILES([
+  Makefile
+])
+
+AC_OUTPUT