prebuilt binary for linux with the latest fixes

Makefile

@@ -1,16 +1,25 @@
 BIN := bin
+LIB := lib
 
 .PHONY: defs bindings all
 
 current_dir_no_prefix:= $(notdir $(shell pwd))
 current_dir:= $(shell pwd)
 MP4GREP_LIBS:=${MP4GREP_INSTALL_PREFIX}/mp4grep-libs
 
+# -ccopt is how you pass options to gcc from ocamlc
+prebuilt-binary-gcc-options := -ccopt -I$(current_dir)/include -ccopt -L$(current_dir)/lib -cclib -lvosk -ccopt -Wl,-rpath=$(LIB)
+installation-gcc-options := -ccopt -I$(current_dir)/include -ccopt -L$(current_dir)/lib -cclib -lvosk -ccopt -Wl,-rpath=$(MP4GREP_LIBS)
+
 $(info mp4grep is being installed to MP4GREP_INSTALL_PREFIX=${MP4GREP_INSTALL_PREFIX})
 $(info mp4grep libraries are being installed to ${MP4GREP_LIBS})
 
+
+prebuilt-binary: defs bindings mp4grep.ml
+	ocamlc -custom -o $(BIN)/mp4grep unix.cma -I $(OPAM_SWITCH_PREFIX)/lib/parmap/ $(OPAM_SWITCH_PREFIX)/lib/parmap/parmap.cma str.cma defs.cmo mp4grep.ml vosk_bindings.o $(prebuilt-binary-gcc-options)
+
 install: check-env copy-dynlibs copy-convertscript defs bindings mp4grep.ml
-	ocamlc -custom -o $(MP4GREP_INSTALL_PREFIX)/mp4grep unix.cma -I $(OPAM_SWITCH_PREFIX)/lib/parmap/ $(OPAM_SWITCH_PREFIX)/lib/parmap/parmap.cma str.cma defs.cmo mp4grep.ml vosk_bindings.o -ccopt -I$(current_dir)/include -ccopt -L$(current_dir)/lib -cclib -lvosk -ccopt -Wl,-rpath=$(MP4GREP_LIBS)
+	ocamlc -custom -o $(MP4GREP_INSTALL_PREFIX)/mp4grep unix.cma -I $(OPAM_SWITCH_PREFIX)/lib/parmap/ $(OPAM_SWITCH_PREFIX)/lib/parmap/parmap.cma str.cma defs.cmo mp4grep.ml vosk_bindings.o $(installation-gcc-options)
 
 copy-dynlibs:
 	if [ -a $(MP4GREP_LIBS) ]; then rm -r $(MP4GREP_LIBS); fi;