diff --git a/src/Makefile.global.in b/src/Makefile.global.in
index e87c1ba8efc475cfde15149b01bdf09cf00841c8..c67eb9d0f5101012cf6f421198ac428e329aecce 100644
--- a/src/Makefile.global.in
+++ b/src/Makefile.global.in
@@ -1,5 +1,5 @@
 # -*-makefile-*-
-# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.182 2004/05/11 21:57:14 momjian Exp $
+# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.183 2004/05/13 23:05:54 momjian Exp $
 
 #------------------------------------------------------------------------------
 # All PostgreSQL makefiles include this file and use the variables it sets,
@@ -177,6 +177,12 @@ ifeq ($(GCC), yes)
   CFLAGS += -Wall -Wmissing-prototypes -Wmissing-declarations
 endif
 
+# Unixware needs threads for everything that uses libpq
+ifeq ($(PORTNAME),unixware)
+  CFLAGS += "$PTHREAD_CFLAGS"
+endif
+
+
 # Kind-of compilers
 
 YACC = @YACC@