libpq-dev: pg_config_manual.h redefines CACHE_LINE_SIZE

Started by Christoph Bergover 11 years ago4 messages
#1Christoph Berg
myon@debian.org

Hi,

there's a #define clash between pg_config_manual.h and FreeBSD's
/usr/include/machine-amd64/param.h which also defines CACHE_LINE_SIZE.

It's probably not really a PostgreSQL bug, but it seems easy enough to
rename that definition now as it's only present in 9.4+. It's only
used in one file, xlog.c: 375d8526f2900d0c377f44532f6d09ee06531f67

Christoph
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cb@df7cb.de | http://www.df7cb.de/

#2Peter Geoghegan
pg@heroku.com
In reply to: Christoph Berg (#1)
Re: libpq-dev: pg_config_manual.h redefines CACHE_LINE_SIZE

On Tue, Sep 30, 2014 at 12:57 PM, Christoph Berg <myon@debian.org> wrote:

It's probably not really a PostgreSQL bug, but it seems easy enough to
rename that definition now as it's only present in 9.4+. It's only
used in one file, xlog.c: 375d8526f2900d0c377f44532f6d09ee06531f67

I agree. It should be renamed to PG_CACHE_LINE_SIZE.

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Peter Geoghegan

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#3Andres Freund
andres@2ndquadrant.com
In reply to: Peter Geoghegan (#2)
Re: libpq-dev: pg_config_manual.h redefines CACHE_LINE_SIZE

On 2014-09-30 13:42:11 -0700, Peter Geoghegan wrote:

On Tue, Sep 30, 2014 at 12:57 PM, Christoph Berg <myon@debian.org> wrote:

It's probably not really a PostgreSQL bug, but it seems easy enough to
rename that definition now as it's only present in 9.4+. It's only
used in one file, xlog.c: 375d8526f2900d0c377f44532f6d09ee06531f67

I agree. It should be renamed to PG_CACHE_LINE_SIZE.

Agreed. Unless somebody protests I'll do so tomorrow.

Greetings,

Andres Freund

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PostgreSQL Development, 24x7 Support, Training & Services

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#4Andres Freund
andres@2ndquadrant.com
In reply to: Christoph Berg (#1)
Re: libpq-dev: pg_config_manual.h redefines CACHE_LINE_SIZE

On 2014-09-30 21:57:56 +0200, Christoph Berg wrote:

Hi,

there's a #define clash between pg_config_manual.h and FreeBSD's
/usr/include/machine-amd64/param.h which also defines CACHE_LINE_SIZE.

It's probably not really a PostgreSQL bug, but it seems easy enough to
rename that definition now as it's only present in 9.4+. It's only
used in one file, xlog.c: 375d8526f2900d0c377f44532f6d09ee06531f67

Changed in 9.4/master.

Thanks.

Andres Freund

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PostgreSQL Development, 24x7 Support, Training & Services

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