BUILD: Makefile: fix linkage for Haiku.

At runtime, the haiku's loader displays `could not resolve symbol: __start_i_STG_ALLOC`
thus using linker setting fallback.
diff --git a/Makefile b/Makefile
index b25c9ad..4b06767 100644
--- a/Makefile
+++ b/Makefile
@@ -343,7 +343,7 @@
 # Haiku
 ifeq ($(TARGET),haiku)
   TARGET_LDFLAGS = -lnetwork
-  set_target_defaults = $(call default_opts,USE_POLL USE_TPROXY)
+  set_target_defaults = $(call default_opts,USE_POLL USE_TPROXY USE_OBSOLETE_LINKER)
 endif
 
 # For linux >= 2.6.28 and glibc