Mac address lobits macro error

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Daniel F. Boyd
Your email address : Daniel(dot)Boyd(at)vacationclub(dot)com

System Configuration
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Architecture (example: Intel Pentium) :Intel Pentium

Operating System (example: Linux 2.0.26 ELF) :FreeBSD 3.2

PostgreSQL version (example: PostgreSQL-6.5) : PostgreSQL-6.5

Compiler used (example: gcc 2.8.0) :gcc version 2.7.2.1

Please enter a FULL description of your problem:
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Ethernet MAC addresses (macaddr type) are not compared correctly for
equality.

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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select '0000c0:d178d1'::macaddr = '0000c0:0b78d1'::macaddr;

Should return false, as these two mac addresses are different -- but
it returns true.

If you know how this problem might be fixed, list the solution below:
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Apply this patch to postgresql-6.5/src/backend/utils/adt/mac.c

*** mac.c_orig Thu Oct 7 17:12:38 1999
--- mac.c Thu Oct 7 17:12:52 1999
***************
*** 136,142 ****
((unsigned long)((addr->a<<16)|(addr->b<<8)|(addr->c)))

#define lobits(addr) \
! ((unsigned long)((addr->c<<16)|(addr->e<<8)|(addr->f)))

/*
* MAC address reader. Accepts several common notations.
--- 136,142 ----
((unsigned long)((addr->a<<16)|(addr->b<<8)|(addr->c)))

#define lobits(addr) \
! ((unsigned long)((addr->d<<16)|(addr->e<<8)|(addr->f)))

/*
* MAC address reader. Accepts several common notations.
------- end -------