Received: (qmail 39021 invoked by uid 501); 11 Feb 2002 19:12:18 -0000
Message-Id: <20020211191218.39020.qmail@apache.org>
Date: 11 Feb 2002 19:12:18 -0000
From: Jim McCullars <jim@info.uah.edu>
Reply-To: jim@info.uah.edu
To: submit@bugz.apache.org
Subject: Problem determing which expat library to use
X-Send-Pr-Version: 3.110

>Number:         9792
>Category:       build
>Synopsis:       Problem determing which expat library to use
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Mon Feb 11 11:20:01 PST 2002
>Closed-Date:    
>Last-Modified:  Tue Feb 12 08:00:01 PST 2002
>Originator:     jim@info.uah.edu
>Release:        1.3.23
>Organization:
apache
>Environment:
Solaris 2.5.1
gcc 2.7.2.3
>Description:
There seems to be a problem with the src/Helpers/TestCompile routine that
determines whether to use system or builtin Expat library.  This also
happens with 1.3.22.

When I run src/Configure (with no changes to src/Configuration), it defaults
to "using system Expat", then when I do a make, it blows off the first time
it tries to find libexpat.so.0 (because that file is not in /usr/lib).  The
TestCompile routine is possibly finding it in /usr/local/lib, but then the
real build does not find it there so it errors.  If I try to get around the
problem by adding /usr/local/lib to EXTRA_LIBS, the Configure script then
defaults to "using builtin Expat" and at the end displays this error:

======== Error Output for sanity check ========
cd ..; gcc  -DSOLARIS2=251 -DUSE_EXPAT -I./lib/expat-lite -DNO_DL_NEEDED      -o
 helpers/dummy helpers/dummy.c  /usr/local/lib -lsocket -lnsl
ld: elf error: file /usr/local/lib: unknown type, unable to process using elf(3E
) libraries
ld: fatal: File processing errors. No output written to helpers/dummy
make: *** [dummy] Error 1
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:

From: Jim McCullars <jim@info.uah.edu>
To: apbugs@Apache.Org
Cc:  
Subject: build/9792
Date: Tue, 12 Feb 2002 09:52:31 -0600 (CST)

 More info about this problem.  It seems that gcc does not return an error
 if a nonexistant library is included on the command line (e.g., -lexpat)
 unless something in the program actually needs that library.  So when
 Configure does this:
 
 	./helpers/TestCompile lib expat
 
 it doesn't get an error so it thinks expat is installed.
 
 
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