Initial experiment in adding js support to w3m.

Makefile.in

@@ -49,6 +49,8 @@ LIBS = @LIBS@
 GC_LIBS = @LIBGC@
 EXT_LIBS = -L. -lindep @LIBINTL@ $(GC_LIBS)
 W3M_LIBS = @W3M_LIBS@
+JAVASCRIPT_LIBS = @JAVASCRIPT_LIBS@
+JAVASCRIPT_OBJS = @JAVASCRIPT_OBJS@
 WCTARGET = @WCTARGET@
 NLSTARGET = @NLSTARGET@
 
@@ -100,7 +102,7 @@ LOBJS=anchor.o parsetagx.o tagtable.o istream.o
 LLOBJS=version.o
 ALIBOBJS=Str.o indep.o regex.o textlist.o parsetag.o myctype.o hash.o
 ALIB=libindep.a
-ALLOBJS=$(OBJS) $(LOBJS) $(LLOBJS)
+ALLOBJS=$(OBJS) $(LOBJS) $(LLOBJS) $(JAVASCRIPT_OBJS)
 
 EXT=@EXEEXT@
 
@@ -129,7 +131,7 @@ SUBDIRS = $(SCRIPTSUBDIRS) w3mimg libwc po
 all: $(TARGETS) all-scripts $(NLSTARGET)
 
 $(TARGET): $(ALLOBJS) $(ALIB) $(WCTARGET)
-	$(CC) $(CFLAGS) -o $(TARGET) $(ALLOBJS) $(LDFLAGS) $(LIBS) $(EXT_LIBS) $(W3M_LIBS)
+	$(CC) $(CFLAGS) -o $(TARGET) $(ALLOBJS) $(LDFLAGS) $(LIBS) $(EXT_LIBS) $(W3M_LIBS) $(JAVASCRIPT_LIBS)
 
 $(ALIB): $(ALIBOBJS)
 	$(AR) rv $(ALIB) $(ALIBOBJS)
@@ -290,8 +292,16 @@ uninstall:
 		(cd $$dir && $(MAKE) $(MAKE_ARGS) uninstall); \
 	done
 
+# JavaScript compilation rules
+js/%.o: js/%.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+js/quickjs/%.o: js/quickjs/%.c
+	$(CC) $(CFLAGS) -DCONFIG_VERSION=\"2024-01-13\" -D_GNU_SOURCE -c $< -o $@
+
 clean: sweep
 	-$(RM) -f *.o *.a $(TARGETS) mktable$(EXT)
+	-$(RM) -f js/*.o js/quickjs/*.o
 	-$(RM) -f funcname.tab
 	-$(RM) -f entity.h funcname.c funcname1.h funcname2.h tagtable.c functable.c
 	-for dir in w3mimg libwc; \