Add $(LDFLAGS) and $(LIBS) to when building shared libs (#6425) (#6426)

docs/CONTRIBUTORS

@@ -7,7 +7,7 @@ Please see the Verilator manual for 200+ additional contributors. Thanks to all.
 Adam Bagley
 Adrian Sampson
 Adrien Le Masle
-Ahmed El-Mahmoudy
+أحمد المحمودي (Ahmed El-Mahmoudy)
 Aidan McNay
 Aleksander Kiryk
 Alex Chadwick

src/V3EmitMk.cpp

@@ -770,10 +770,10 @@ public:
                 // So add dynamic_lookup
                 of.puts("ifeq ($(shell uname -s),Darwin)\n");
                 of.puts("\t$(OBJCACHE) $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(OPT_FAST) -undefined "
-                        "dynamic_lookup -shared -flat_namespace -o $@ $^\n");
+                        "dynamic_lookup -shared $(LDFLAGS) -flat_namespace -o $@ $^ $(LIBS)\n");
                 of.puts("else\n");
-                of.puts(
-                    "\t$(OBJCACHE) $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(OPT_FAST) -shared -o $@ $^\n");
+                of.puts("\t$(OBJCACHE) $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(OPT_FAST) -shared "
+                        "$(LDFLAGS) -o $@ $^ $(LIBS)\n");
                 of.puts("endif\n");
                 of.puts("\n");
                 of.puts("lib" + v3Global.opt.libCreate() + ": " + v3Global.opt.libCreateName(false)