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[PATCH] Rationalize --enable-debug and --enable-maintainer-mode

From: Peter Lundblad <plundblad_at_google.com>
Date: 2007-03-22 22:34:24 CET

Hi,

the current situation regarding --enable-debug and
--enable-maintainer-mode is a little confusing.

--enable-debug enables compiler debugging, but not the SVN_DEBUG and
  AP_DEBUG macros. OTOH, --enable-maintainer-mode does the latter,
  but does not enable compiler debugging, although it pretends to do
  so by setting an internal variable, but too late... Uh...
I'm not sure if we need two options here, but it might be good to
  leave --enable-debug to not cause problems for people with automated
  builds. Also, --disable-debug can be used to disable debugging
  information.

Anyway, any objections to this patch that tries to make this a little
less confusing?

Thanks,
//Peter

[[[
When configuring, make --enable-debug disable compiler optimization and make
--enable-maintainer-mode imply --enable-debug.

* configure.in:
  Move check for --enable-maintainer-mode above conditional on
  $enable_debugging and move addition of SVN_DEBUG and AP_DEBUG
  to that conditional.
]]]

Index: configure.in
===================================================================
--- configure.in (revision 24026)
+++ configure.in (working copy)
@@ -440,7 +440,7 @@
 
 AC_ARG_ENABLE(debug,
 AC_HELP_STRING([--enable-debug],
- [Turn on debugging and compile time warnings]),
+ [Turn on debugging]),
 [
     if test "$enableval" = "yes" ; then
       enable_debugging="yes"
@@ -448,11 +448,29 @@
       enable_debugging="no"
     fi
 ])
+
+AC_ARG_ENABLE(maintainer-mode,
+AC_HELP_STRING([--enable-maintainer-mode],
+ [Turn on debugging and very strict compile-time warnings]),
+[
+ if test "$enableval" = "yes" ; then
+ if test "$enable_debugging" = "no" ; then
+ AC_MSG_ERROR(Can't have --disable-debug and --enable-maintainer-mode)
+ fi
+ enable_debugging=yes
+ if test "$GCC" = "yes"; then
+ CFLAGS="$CFLAGS -Wpointer-arith -Wwrite-strings -Wshadow"
+ fi
+ fi
+])
+
 if test "$enable_debugging" = "yes" ; then
   dnl At the moment, we don't want optimization, because we're
   dnl debugging.
- dnl ### actually, debugging should be fine with the default -O2
   CFLAGS=["`echo $CFLAGS' ' | sed -e 's/-O[^ ]* //g'`"]
+ dnl SVN_DEBUG enables specific features for developer builds
+ dnl AP_DEBUG enables specific (Apache) features for developer builds
+ CFLAGS="$CFLAGS -DSVN_DEBUG -DAP_DEBUG"
 else
   if test "$enable_debugging" = "no" ; then
     CFLAGS=["`echo $CFLAGS' ' | sed -e 's/-g[0-9] //g' | sed -e 's/-g//g'`"]
@@ -493,25 +511,7 @@
 AC_SUBST(MOD_ACTIVATION)
 
 
-AC_ARG_ENABLE(maintainer-mode,
-AC_HELP_STRING([--enable-maintainer-mode],
- [Turn on debugging and very strict compile-time warnings]),
-[
- if test "$enableval" = "yes" ; then
- if test "$enable_debugging" = "no" ; then
- AC_MSG_ERROR(Can't have --disable-debug and --enable-maintainer-mode)
- fi
- enable_debugging=yes
- dnl SVN_DEBUG enables specific features for developer builds
- dnl AP_DEBUG enables specific (Apache) features for developer builds
- CFLAGS="$CFLAGS -DSVN_DEBUG -DAP_DEBUG"
- if test "$GCC" = "yes"; then
- CFLAGS="$CFLAGS -Wpointer-arith -Wwrite-strings -Wshadow"
- fi
- fi
-])
 
-
 AC_ARG_ENABLE(gprof,
 AC_HELP_STRING([--enable-gprof],
                [Produce gprof profiling data in 'gmon.out' (GCC only).]),

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Received on Thu Mar 22 22:34:42 2007

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