--- ./64bit/Makefile.orig	2021-06-01 10:26:51 +0000
+++ 64bit/Makefile	2021-06-01 10:27:48 +0000
@@ -1185,8 +1185,8 @@
 # tweaked by config.* below as well as the command-line, both of
 # which'll override these defaults.
 CFLAGS = -g -O2 -Wall
-CFLAGS = -std=gnu99 -O2
-LDFLAGS =
+CFLAGS = -std=gnu99 -O2 -maix64
+LDFLAGS = -L/opt/freeware/lib64 -L/opt/freeware/lib -Wl,-bbigtoc -Wl,-blibpath:/opt/freeware/lib64:/opt/freeware/lib:/usr/lib:/lib"
 CC_LD_DYNPATH = -Wl,-rpath,
 BASIC_CFLAGS = -I.
 BASIC_LDFLAGS =