$ grep -n dynamic config.mak 
15:OPTFLAGS=-O3  -no-cpp-precomp -pipe -force_cpusubtype_ALL -Wno-sign-compare -fomit-frame-pointer -g -Wdeclaration-after-statement -Wall -Wno-switch -mdynamic-no-pic
17:LDFLAGS=-Wl,-dynamic,-search_paths_first  
20:SHFLAGS=-dynamiclib -Wl,-single_module -Wl,-install_name,$(libdir)/$(SLIBNAME),-current_version,$(SPPVERSION),-compatibility_version,$(SPPVERSION)
21:VHOOKFLAGS=-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(libdir)/vhook/$@