Remove $(DESTDIR) from the pgxs BE_DLLLIBS= -L path for AIX and Darwin.

src/makefiles/Makefile.aix

@@ -22,7 +22,7 @@ IMPSUFF= .imp
 POSTGRES_IMP= postgres$(IMPSUFF)
 
 ifdef PGXS
-BE_DLLLIBS= -Wl,-bI:$(DESTDIR)$(bindir)/postgres/$(POSTGRES_IMP)
+BE_DLLLIBS= -Wl,-bI:$(bindir)/postgres/$(POSTGRES_IMP)
 else
 BE_DLLLIBS= -Wl,-bI:$(top_builddir)/src/backend/$(POSTGRES_IMP)
 endif

src/makefiles/Makefile.darwin

@@ -5,7 +5,7 @@ DLSUFFIX = .so
 CFLAGS_SL =
 
 ifdef PGXS
-BE_DLLLIBS= -bundle_loader $(DESTDIR)$(bindir)/postgres
+BE_DLLLIBS= -bundle_loader $(bindir)/postgres
 else
 BE_DLLLIBS= -bundle_loader $(top_builddir)/src/backend/postgres
 endif