Re: [boost] Re: Boost Threads Link Problem

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2004-07-27 23:39:00

Michael Glassford wrote:

> Joel de Guzman wrote:
> 
>> Hi,
>>
>> Has all the Boost.Threads problems been solved yet? I
>> am still having link problems with Threads on intel-win32-7.1
>> -vc6 (w/ or w/out stlport- 4.5.3):
>>
>>     http://tinyurl.com/5c2dg
>>
>> Any clues?

> I believe I remember that 
> auto-link should be turned off for regression tests by defining 
> BOOST_ALL_NO_LIB (as it is for Boost.Threads, apparently), though I 
> don't remember why it should be or where the library name comes from in 
> that case. Anyone?

Yes you remember correctly. The reasons are rather simple: if one 
directly refers to another library in the test, with <dll>* or <lib>*, 
then the library is linked to directly and hence there is no need for 
auto-linking. And auto-linking in that case would be redundant, and may 
even cause errors and warnings from the linker. But the reason one 
*must* refer to other libraries directly for tests is that auto-linking 
is not available on all platforms. Hence since they are mutually 
exclusive and tests need to be cross-platform auto-linking needs to be 
disabled for regression testing.

For the Spirit tests there are two ways to add the correct define:

===================================================================
RCS file: /cvsroot/boost/boost/libs/spirit/test/Jamfile,v
retrieving revision 1.23
diff -u -r1.23 Jamfile
--- Jamfile	20 Jul 2004 00:48:28 -0000	1.23
+++ Jamfile	28 Jul 2004 04:32:16 -0000
@@ -73,6 +73,7 @@
      #template multi-threading : <dll>../../thread/build/boost_thread : :
      template multi-threading : 
<dll>@boost/libs/thread/build/boost_thread : :
          <threading>multi
+        <define>BOOST_ALL_NO_LIB=1
          $(spirit-header-include)
      ;
  }
===================================================================

Or:

===================================================================
RCS file: /cvsroot/boost/boost/libs/spirit/test/Jamfile,v
retrieving revision 1.23
diff -u -r1.23 Jamfile
--- Jamfile	20 Jul 2004 00:48:28 -0000	1.23
+++ Jamfile	28 Jul 2004 04:34:02 -0000
@@ -38,13 +38,13 @@
      SEARCH on $(input-files) = $(SEARCH_SOURCE) ;
      name ?= $(sources[1]:D=:S=) ;
      name = $(name)_debug ;
-    return [ boost-test $(sources) : RUN : $(requirements) 
<define>BOOST_SPIRIT_DEBUG=1 : $(name) : $(default-build) ] ;
+    return [ boost-test $(sources) : RUN : $(requirements) 
<define>BOOST_SPIRIT_DEBUG=1 <define>BOOST_ALL_NO_LIB=1 : $(name) : 
$(default-build) ] ;
  }

  rule spirit-run ( sources + : args * : input-files * : requirements * 
: name ? : default-build * )
  {
      run $(sources) : $(args) : $(input-files) : $(requirements) : 
$(name) : $(default-build) ;
-    spirit-run-debug $(sources) : $(args) : $(input-files) : 
$(requirements) : $(name) : $(default-build) ;
+    spirit-run-debug $(sources) : $(args) : $(input-files) : 
$(requirements) <define>BOOST_ALL_NO_LIB=1 : $(name) : $(default-build) ;
  }

  ############################################################
===================================================================

The first one has the benefit that the extra define is *only* added when 
the thread library is used.

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