HPUX build does not build shared lib versions of libpq and libpq++

```-----------------------------------------------------------------------
Test Case:  ----------
```

-----------------------------------------------------------------------

Solution:  --------- Add this to the libpq and libpq++ Makefiles
to build shared libs:

Mike Ferrara

src/interfaces/libpq++/Makefile

@@ -7,7 +7,7 @@
 #
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/Makefile,v 1.9 1997/09/16 18:47:23 momjian Exp $
+#    $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/Makefile,v 1.10 1998/03/20 04:07:11 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -48,6 +48,12 @@ ifeq ($(PORTNAME), i386_solaris)
   LDFLAGS_SL = -G -z text
   CFLAGS += $(CFLAGS_SL)
 endif
+ifeq ($(PORTNAME), hpux)
+  install-shlib-dep := install-shlib
+  shlib := libpq.sl
+  LDFLAGS_SL = -b
+  CFLAGS += $(CFLAGS_SL)
+endif
 
 all: $(LIBNAME).a $(SHLIB) install examples
 

src/interfaces/libpq/Makefile.in

@@ -7,7 +7,7 @@
 #
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/interfaces/libpq/Attic/Makefile.in,v 1.8 1998/02/27 02:40:59 scrappy Exp $
+#    $Header: /cvsroot/pgsql/src/interfaces/libpq/Attic/Makefile.in,v 1.9 1998/03/20 04:07:02 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -59,6 +59,12 @@ ifeq ($(PORTNAME), univel)
   LDFLAGS_SL = -G -z text
   CFLAGS += $(CFLAGS_SL)
 endif
+ifeq ($(PORTNAME), hpux)
+  install-shlib-dep := install-shlib
+  shlib := libpq.sl
+  LDFLAGS_SL = -b
+  CFLAGS += $(CFLAGS_SL)
+endif
 
 all: libpq.a $(shlib) c.h