contrib-global.mk and sql.in question

Hey,

Just wondering if the rule:

%.sql: %.sql.in
        sed 's,MODULE_PATHNAME,$$libdir/$*g' $< >$@

is supposed to produce files like this:

CREATE OR REPLACE FUNCTION pgxml_parse(text) RETURNS boolean
    AS '$libdir/pgxml_dom' LANGUAGE c STRICT;

I'm using:

GNU sed version 4.0.3.
GNU make 3.80
Mandrake Linux 9.1
PG 7.4Beta1


I find the following patch makes it work for me, but I'm not sure if this is a
bug, feature, or something else?

*** contrib-global.mk.orig      2003-08-22 22:20:33.000000000 -0600
--- contrib-global.mk   2003-08-22 22:22:26.000000000 -0600
***************
*** 225,231 ****

  ifneq (,$(MODULES)$(MODULE_big))
  %.sql: %.sql.in
!       sed 's,MODULE_PATHNAME,$$libdir/$*,g' $< >$@
  endif

  ifdef PROGRAM
--- 225,231 ----

  ifneq (,$(MODULES)$(MODULE_big))
  %.sql: %.sql.in
!       @sed 's:MODULE_PATHNAME:$(libdir)/$*:g' $< >$@
  endif

  ifdef PROGRAM

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