Replace autotools with meson

To introduce much simpler build configuration which is also easier to
maintain.

src/print.h

@@ -0,0 +1,57 @@
+/*
+ * tio - a simple TTY terminal I/O application
+ *
+ * Copyright (c) 2014-2017  Martin Lund
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef PRINT_H
+#define PRINT_H
+
+#define ANSI_COLOR_GRAY      "\x1b[1;30m"
+#define ANSI_COLOR_RED       "\x1b[1;31m"
+#define ANSI_COLOR_GREEN     "\x1b[1;32m"
+#define ANSI_COLOR_YELLOW    "\x1b[1;33m"
+#define ANSI_COLOR_BLUE      "\x1b[1;34m"
+#define ANSI_COLOR_PINK      "\x1b[1;35m"
+#define ANSI_COLOR_CYAN      "\x1b[1;36m"
+#define ANSI_COLOR_WHITE     "\x1b[1;37m"
+#define ANSI_COLOR_RESET     "\x1b[0m"
+
+#define color_printf(format, args...) \
+   { \
+     fprintf (stdout, "\r" ANSI_COLOR_YELLOW format ANSI_COLOR_RESET "\r\n", ## args); \
+     fflush(stdout); \
+   }
+
+#define warning_printf(format, args...) \
+   { \
+     fprintf (stdout, "\rWarning: " format "\r\n", ## args); \
+     fflush(stdout); \
+   }
+
+#ifdef DEBUG
+#define debug_printf(format, args...) \
+   fprintf (stdout, "[debug] " format, ## args)
+#define debug_printf_raw(format, args...) \
+   fprintf (stdout, "" format, ## args)
+#else
+#define debug_printf(format, args...)
+#define debug_printf_raw(format, args...)
+#endif
+
+#endif