Add libjq autoconf goo

jq.h

@@ -0,0 +1,18 @@
+#ifndef _JQ_H_
+#define _JQ_H_
+
+#include <jv.h>
+
+enum {JQ_DEBUG_TRACE = 1};
+
+typedef struct jq_state jq_state;
+jq_state *jq_init(void);
+void jq_set_nomem_handler(jq_state *, void (*)(void *), void *);
+int jq_compile(jq_state *, const char* str);
+int jq_compile_args(jq_state *, const char* str, jv args);
+void jq_dump_disassembly(jq_state *, int);
+void jq_start(jq_state *, jv value, int flags);
+jv jq_next(jq_state *);
+void jq_teardown(jq_state **);
+
+#endif /* !_JQ_H_ */