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- Modify the 12.11 Threading Libraries chapter to reflect the recent dismission

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of PTHREAD_CFLAGS and PTHREAD_LIBS

Reviewed by:	eadler, bcr
Approved by:	bcr
This commit is contained in:
Pietro Cerutti 2013-02-14 14:35:54 +00:00
parent 2460b60e13
commit 6e44e1b23f
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=40970
1 changed files with 9 additions and 17 deletions

26
en_US.ISO8859-1/books/porters-handbook/book.xml
View file

@ -787,8 +787,7 @@ PLIST_DIRS= lib/X11/oneko</programlisting>
variable value. Example:</para>
<programlisting>post-patch:
@${REINPLACE_CMD} -e 's|for Linux|for FreeBSD|g' ${WRKSRC}/README
@${REINPLACE_CMD} -e 's|-pthread|${PTHREAD_LIBS}|' ${WRKSRC}/configure</programlisting>
@${REINPLACE_CMD} -e 's|for Linux|for FreeBSD|g' ${WRKSRC}/README</programlisting>
<para>Quite often, there is a situation when the software being
ported, especially if it is primarily developed on &windows;,
@ -16171,25 +16170,18 @@ exec %%LOCALBASE%%/bin/java -jar %%DATADIR%%/foo.jar "$@"</programlisting>
<title>Threading Libraries</title>
<para>The threading library must be linked to the binaries using
a special linker flag <literal>-pthread</literal> on &os;. If
a special flag <literal>-pthread</literal> on &os;. If
a port insists on linking <literal>-lpthread</literal>
directly, patch it to use
<makevar>PTHREAD_LIBS</makevar> variable provided by the ports
framework. This variable usually has the value of
<literal>-pthread</literal>, but on certain architectures and
&os; versions it can have different values, so do not just
hardcode <literal>-pthread</literal> into patches and always
use <makevar>PTHREAD_LIBS</makevar>.</para>
directly, patch it to use <literal>-pthread</literal>.</para>
<note>
<para>If building the port errors out with
<literal>unrecognized option '-pthread'</literal> when
setting <makevar>PTHREAD_LIBS</makevar>, it may be desirable
to use <command>cc</command> as linker by setting
<makevar>CONFIGURE_ENV</makevar> to
<literal>LD=${CC}</literal>. The
<literal>-pthread</literal> option is not supported by
<command>ld</command> directly.</para>
<literal>unrecognized option '-pthread'</literal>,
it may be desirable to use <command>cc</command> as linker by
setting <makevar>CONFIGURE_ENV</makevar> to
<literal>LD=${CC}</literal>. The
<literal>-pthread</literal> option is not supported by
<command>ld</command> directly.</para>
</note>
</sect1>