Patch taken from https://sources.debian.org/data/main/g/gpsbabel/1.5.3-2/debian/patches/use_minizip.

--- a/Makefile.in
+++ b/Makefile.in
@@ -120,7 +120,7 @@ LIBOBJS = queue.o route.o waypt.o filter
 	  src/core/usasciicodec.o\
 	  src/core/ziparchive.o \
 	  $(GARMIN) $(JEEPS) $(SHAPE) @ZLIB@ $(FMTS) $(FILTERS)
-OBJS = main.o globals.o $(LIBOBJS) @FILEINFO@
+OBJS = main.o globals.o $(MINIZIP) $(LIBOBJS) @FILEINFO@
 
 DEPFILES = $(OBJS:.o=.d)
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