abstract out error logging a bit

just spitting things to stderr isn't always going to be good enough, so
let's at least provide one place to change that when necessary

1 files changed, 6 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..f542261
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,6 @@
+#ifndef _RUNES_UTIL_H
+#define _RUNES_UTIL_H
+
+void runes_warn(const char *fmt, ...);
+
+#endif