--- /dev/null
+#ifndef LICE_HDR
+#define LICE_HDR
+#include "util.h"
+
+#ifdef LICE_TARGET_AMD64
+# include "arch_amd64.h"
+#else
+ /*
+ * Any additional future targets will just keep bracing with
+ * conditional inclusion here.
+ */
+# include "arch_dummy.h"
+#endif
+
+#ifdef __GNUC__
+# define NORETURN __attribute__((noreturn))
+#else
+# define NORETURN
+#endif
+
+/*
+ * Function: compile_error
+ * Write compiler error diagnostic to stderr, formatted
+ *
+ * Parameters:
+ * fmt - Standard format specification string
+ * ... - Additional variable arguments
+ *
+ * Remarks:
+ * This function does not return, it kills execution via a call to
+ * exit(1);
+ */
+void NORETURN compile_error(const char *fmt, ...);
+
+/*
+ * Function: compile_warn
+ * Write compiler warning diagnostic to stderr, formatted
+ *
+ * Parameters:
+ * fmt - Standard format specification string
+ * ... - Additional variable arguments
+ */
+void compile_warn(const char *fmt, ...);
+
+/*
+ * Function: compile_ice
+ * Write an internal compiler error diagnostic to stderr, formatted
+ * and abort.
+ *
+ * Parameters:
+ * fmt - Standard format specification string
+ * ... - Additional variable arguments
+ *
+ * Remarks:
+ * Thie function does not return, it aborts execution via a call to
+ * abort()
+ */
+void NORETURN compile_ice(const char *fmt, ...);
+
+/* TODO: eliminate */
+extern bool compile_warning;
+
+#endif