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From Walter Gonzalez <wa...@playstation.sony.com>
Subject build/9729: Better support for debugging , do not use EXTRA_CFLAGS internally
Date Wed, 06 Feb 2002 00:28:24 GMT

>Number:         9729
>Category:       build
>Synopsis:       Better support for debugging , do not use EXTRA_CFLAGS internally
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Tue Feb 05 16:30:00 PST 2002
>Originator:     waldo@playstation.sony.com
Solaris SunOS 5.8
Your debugging guide (http://httpd.apache.org/dev/debugging.html) 
suggests adding the -g flag with EXTRA_CFLAGS . 

However at the toplevel dir (ie: apache_1.3.23) doing the command: 

% make EXTRA_CFLAGS=" -g"

Causes the build under src/main to not use apaci and possibly use the 
wrong HTTPD_ROOT path. This is because src/main/Makefile has the line: 


Hence (properly) adding a debug flag is not quite as simple as the 
debugging doc suggests.


cd apache_1.3.23
./configure --prefix=/usr/foobar
make EXTRA_CFLAGS=" -g" 
./src/httpd -V 

<observe how the prefix didn't make it into the linked server binary> 

The documentation should probably be either updated to say: 

"Add the -g flag to EXTRA_CFLAGS in  apache_1.3.23/src/Configuration *before*
running apache_1.3.23/configure , to ensure all Makefiles are generated properly. " 

And/Or do *not* use EXTRA_CFLAGS internally and instead set apaci in another internal makefile
variable. Reserving the EXTRA_* variable defines for user customization.

I would really suggest doing both, because there will be users like me that
may assume it's safe to redefine the EXTRA_*  variables on the fly. 

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