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Support cross compilation by compiling "zic" with a native compiler. This

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relies on the output of zic being platform independent, but that is
currently the case.
This commit is contained in:
Peter Eisentraut
2005-07-03 18:54:28 +00:00
parent cc9bcbc8a4
commit 85884cb1de
5 changed files with 58 additions and 8 deletions
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19
doc/src/sgml/installation.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.238 2005/06/27 02:04:23 neilc Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.239 2005/07/03 18:54:27 petere Exp $ -->
<chapter id="installation">
<title><![%standalone-include[<productname>PostgreSQL</>]]>
@ -993,6 +993,23 @@ su - postgres
<userinput>./configure CC=/opt/bin/gcc CFLAGS='-O2 -pipe'</>
</screen>
</para>
<para>
If you are cross-compiling<indexterm><primary>cross
compilation</primary></indexterm> (compiling on one architecture
with the intent to run on a different architecture), special care
needs to be taken. First of all, specify the host architecture
(the architecture PostgreSQL will run on) using the option
<option>--host</option>. The variables <envar>CC</>,
<envar>CFLAGS</>, etc. should refer to the build tools for the
host architecture. During the build process, the time-zone
database for PostgreSQL is created and a special tool to do that
is compiled and run during the build process. This tool needs to
be compiled using a native compiler. Specify this compiler using
the variable <envar>CC_FOR_BUILD</envar>. Cross compilation
requires expert knowledge and the support for this process in the
PostgreSQL tree should be considered somewhat experimental.
</para>
</step>
<step>