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Re: Use of zlib

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To:
Cc: Dennis Bjorklund <db(at)zigo(dot)dhs(dot)org>,Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>,Thomas Hallgren <thhal(at)mailblocks(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Use of zlib
Date: 2004-09-26 13:43:50
Message-ID: 4156C796.207@dunslane.net (view raw or flat)
Thread:
Lists: pgsql-hackers
of course, I meant --as-needed rather than --as-necessary

Andrew Dunstan wrote:

>
>
> Dennis Bjorklund wrote:
>
>> This is the output in Fedora Core 2, and it includes readline:
>>
>> $ ldd /usr/bin/postgres
>>        linux-gate.so.1 =>  (0x00240000)
>>        libpam.so.0 => /lib/libpam.so.0 (0x00cf1000)
>>        libssl.so.4 => /lib/libssl.so.4 (0x0014e000)
>>        libcrypto.so.4 => /lib/libcrypto.so.4 (0x00241000)
>>        libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0x0052a000)
>>        libcom_err.so.2 => /lib/libcom_err.so.2 (0x00e56000)
>>        libz.so.1 => /usr/lib/libz.so.1 (0x00aca000)
>>        libreadline.so.4 => /usr/lib/libreadline.so.4 (0x00111000)
>>        libtermcap.so.2 => /lib/libtermcap.so.2 (0x00f25000)
>>        libcrypt.so.1 => /lib/libcrypt.so.1 (0x00406000)
>>        libresolv.so.2 => /lib/libresolv.so.2 (0x00f8a000)
>>        libnsl.so.1 => /lib/libnsl.so.1 (0x00215000)
>>        libdl.so.2 => /lib/libdl.so.2 (0x00908000)
>>        libm.so.6 => /lib/tls/libm.so.6 (0x008a5000)
>>        libc.so.6 => /lib/tls/libc.so.6 (0x00592000)
>>        libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0x00a57000)
>>        libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0x00ccd000)
>>        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x004ca000)
>>
>>
>>  
>>
>
> Now, to see the things postgres really needs, as opposed to things 
> other libraries need or that we just throw in for good measure in case 
> somebody needs them, run this:
>
>  LDFLAGS=-Wl,--as-necessary ./configure
>
> without any third-party options (like pam, openssl, kerberos ...), 
> Alternatively, you can set the flag in src/Makefile.global
>
> This should work on FC2, which I believe has binutils 2.15.
>
> Almost every line above will disappear.
>
> cheers
>
> andrew
>

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