From af7b5345ed8431ca21fc4a3bfab2889a342a6844 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 19 Feb 2003 13:52:11 +0000
Subject: [PATCH] use -O0 when optimizing is off -- seems to __slightly__
 reduce the build times with g++ 3.2

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19255 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 configure    | 172 ++++++++++++++++++++++++++-------------------------
 configure.in |   9 ++-
 2 files changed, 96 insertions(+), 85 deletions(-)

diff --git a/configure b/configure
index 91312a30b5..48586c3a89 100755
--- a/configure
+++ b/configure
@@ -19414,12 +19414,16 @@ if test "$GCC" = "yes" ; then
     esac
 fi
 
+OPTIMISE=
 if test "$wxUSE_OPTIMISE" = "no" ; then
-    OPTIMISE=
+    if test "$GCC" = yes ; then
+                        OPTIMISE="-O0"
+    fi
 else
     if test "$GCC" = yes ; then
         OPTIMISE="-O2"
-        case "${host}" in
+
+                case "${host}" in
             i586-*-*|i686-*-* )
             OPTIMISE="${OPTIMISE} "
         ;;
@@ -19702,12 +19706,12 @@ if test "$wxUSE_DATETIME" = "yes"; then
         for ac_func in strptime
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:19706: checking for $ac_func" >&5
+echo "configure:19710: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 19711 "configure"
+#line 19715 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -19730,7 +19734,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:19734: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:19738: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -19756,13 +19760,13 @@ done
 
 
             echo $ac_n "checking for timezone variable in <time.h>""... $ac_c" 1>&6
-echo "configure:19760: checking for timezone variable in <time.h>" >&5
+echo "configure:19764: checking for timezone variable in <time.h>" >&5
 if eval "test \"`echo '$''{'wx_cv_var_timezone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
                         cat > conftest.$ac_ext <<EOF
-#line 19766 "configure"
+#line 19770 "configure"
 #include "confdefs.h"
 
                                 #include <time.h>
@@ -19774,7 +19778,7 @@ int main() {
                             
 ; return 0; }
 EOF
-if { (eval echo configure:19778: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:19782: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
                                 wx_cv_var_timezone=timezone
@@ -19785,7 +19789,7 @@ else
   rm -rf conftest*
   
                                 cat > conftest.$ac_ext <<EOF
-#line 19789 "configure"
+#line 19793 "configure"
 #include "confdefs.h"
 
                                         #include <time.h>
@@ -19797,7 +19801,7 @@ int main() {
                                     
 ; return 0; }
 EOF
-if { (eval echo configure:19801: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:19805: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
                                         wx_cv_var_timezone=_timezone
@@ -19808,7 +19812,7 @@ else
   rm -rf conftest*
   
                                         cat > conftest.$ac_ext <<EOF
-#line 19812 "configure"
+#line 19816 "configure"
 #include "confdefs.h"
 
                                                 #include <time.h>
@@ -19820,7 +19824,7 @@ int main() {
                                             
 ; return 0; }
 EOF
-if { (eval echo configure:19824: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:19828: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
                                                 wx_cv_var_timezone=__timezone
@@ -19861,12 +19865,12 @@ EOF
         for ac_func in localtime
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:19865: checking for $ac_func" >&5
+echo "configure:19869: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 19870 "configure"
+#line 19874 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -19889,7 +19893,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:19893: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:19897: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -19916,13 +19920,13 @@ done
 
     if test "$ac_cv_func_localtime" = "yes"; then
         echo $ac_n "checking for tm_gmtoff in struct tm""... $ac_c" 1>&6
-echo "configure:19920: checking for tm_gmtoff in struct tm" >&5
+echo "configure:19924: checking for tm_gmtoff in struct tm" >&5
 if eval "test \"`echo '$''{'wx_cv_struct_tm_has_gmtoff'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
             cat > conftest.$ac_ext <<EOF
-#line 19926 "configure"
+#line 19930 "configure"
 #include "confdefs.h"
 
                     #include <time.h>
@@ -19934,7 +19938,7 @@ int main() {
                 
 ; return 0; }
 EOF
-if { (eval echo configure:19938: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:19942: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
                     wx_cv_struct_tm_has_gmtoff=yes
@@ -19963,12 +19967,12 @@ EOF
             for ac_func in gettimeofday ftime
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:19967: checking for $ac_func" >&5
+echo "configure:19971: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 19972 "configure"
+#line 19976 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -19991,7 +19995,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:19995: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:19999: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -20018,7 +20022,7 @@ done
 
     if test "$ac_cv_func_gettimeofday" = "yes"; then
         echo $ac_n "checking whether gettimeofday takes two arguments""... $ac_c" 1>&6
-echo "configure:20022: checking whether gettimeofday takes two arguments" >&5
+echo "configure:20026: checking whether gettimeofday takes two arguments" >&5
 if eval "test \"`echo '$''{'wx_cv_func_gettimeofday_has_2_args'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -20033,7 +20037,7 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 
             cat > conftest.$ac_ext <<EOF
-#line 20037 "configure"
+#line 20041 "configure"
 #include "confdefs.h"
 
                     #include <sys/time.h>
@@ -20046,7 +20050,7 @@ int main() {
                 
 ; return 0; }
 EOF
-if { (eval echo configure:20050: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:20054: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   wx_cv_func_gettimeofday_has_2_args=yes
 else
@@ -20054,7 +20058,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 20058 "configure"
+#line 20062 "configure"
 #include "confdefs.h"
 
                         #include <sys/time.h>
@@ -20067,7 +20071,7 @@ int main() {
                     
 ; return 0; }
 EOF
-if { (eval echo configure:20071: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:20075: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   wx_cv_func_gettimeofday_has_2_args=no
 else
@@ -20122,12 +20126,12 @@ fi
 if test "$wxUSE_SOCKETS" = "yes"; then
         if test "$TOOLKIT" != "MSW"; then
                 echo $ac_n "checking for socket""... $ac_c" 1>&6
-echo "configure:20126: checking for socket" >&5
+echo "configure:20130: checking for socket" >&5
 if eval "test \"`echo '$''{'ac_cv_func_socket'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 20131 "configure"
+#line 20135 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char socket(); below.  */
@@ -20150,7 +20154,7 @@ socket();
 
 ; return 0; }
 EOF
-if { (eval echo configure:20154: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20158: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_socket=yes"
 else
@@ -20168,7 +20172,7 @@ if eval "test \"`echo '$ac_cv_func_'socket`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:20172: checking for socket in -lsocket" >&5
+echo "configure:20176: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -20176,7 +20180,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 20180 "configure"
+#line 20184 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -20187,7 +20191,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:20191: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20195: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -20223,7 +20227,7 @@ fi
 if test "$wxUSE_SOCKETS" = "yes" ; then
                 if test "$TOOLKIT" != "MSW"; then
                 echo $ac_n "checking what is the type of the third argument of getsockname""... $ac_c" 1>&6
-echo "configure:20227: checking what is the type of the third argument of getsockname" >&5
+echo "configure:20231: checking what is the type of the third argument of getsockname" >&5
 if eval "test \"`echo '$''{'wx_cv_type_getsockname3'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -20238,7 +20242,7 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 
                 cat > conftest.$ac_ext <<EOF
-#line 20242 "configure"
+#line 20246 "configure"
 #include "confdefs.h"
 
                         #include <sys/types.h>
@@ -20251,7 +20255,7 @@ int main() {
                     
 ; return 0; }
 EOF
-if { (eval echo configure:20255: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:20259: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   wx_cv_type_getsockname3=socklen_t
 else
@@ -20259,7 +20263,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 20263 "configure"
+#line 20267 "configure"
 #include "confdefs.h"
 
                             #include <sys/types.h>
@@ -20272,7 +20276,7 @@ int main() {
                         
 ; return 0; }
 EOF
-if { (eval echo configure:20276: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:20280: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   wx_cv_type_getsockname3=size_t
 else
@@ -20280,7 +20284,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 20284 "configure"
+#line 20288 "configure"
 #include "confdefs.h"
 
                                 #include <sys/types.h>
@@ -20293,7 +20297,7 @@ int main() {
                             
 ; return 0; }
 EOF
-if { (eval echo configure:20297: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:20301: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   wx_cv_type_getsockname3=int
 else
@@ -20365,17 +20369,17 @@ if test "$wxUSE_GUI" = "yes"; then
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:20369: checking for $ac_hdr" >&5
+echo "configure:20373: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 20374 "configure"
+#line 20378 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:20379: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:20383: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -20429,12 +20433,12 @@ if test "$TOOLKIT" != "MSW"; then
                                                 for ac_func in dlopen
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:20433: checking for $ac_func" >&5
+echo "configure:20437: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 20438 "configure"
+#line 20442 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -20457,7 +20461,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:20461: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20465: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -20485,7 +20489,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:20489: checking for dlopen in -ldl" >&5
+echo "configure:20493: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -20493,7 +20497,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 20497 "configure"
+#line 20501 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -20504,7 +20508,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:20508: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20512: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -20533,12 +20537,12 @@ else
                                 for ac_func in shl_load
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:20537: checking for $ac_func" >&5
+echo "configure:20541: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 20542 "configure"
+#line 20546 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -20561,7 +20565,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:20565: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20569: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -20589,7 +20593,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for dld in -lshl_load""... $ac_c" 1>&6
-echo "configure:20593: checking for dld in -lshl_load" >&5
+echo "configure:20597: checking for dld in -lshl_load" >&5
 ac_lib_var=`echo shl_load'_'dld | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -20597,7 +20601,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lshl_load  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 20601 "configure"
+#line 20605 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -20608,7 +20612,7 @@ int main() {
 dld()
 ; return 0; }
 EOF
-if { (eval echo configure:20612: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20616: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -20647,12 +20651,12 @@ done
             for ac_func in dlerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:20651: checking for $ac_func" >&5
+echo "configure:20655: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 20656 "configure"
+#line 20660 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -20675,7 +20679,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:20679: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -20700,7 +20704,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for dlerror in -ldl""... $ac_c" 1>&6
-echo "configure:20704: checking for dlerror in -ldl" >&5
+echo "configure:20708: checking for dlerror in -ldl" >&5
 ac_lib_var=`echo dl'_'dlerror | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -20708,7 +20712,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 20712 "configure"
+#line 20716 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -20719,7 +20723,7 @@ int main() {
 dlerror()
 ; return 0; }
 EOF
-if { (eval echo configure:20723: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20727: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -20794,7 +20798,7 @@ EOF
 
   if test "$wxUSE_MSW" = 1 -a "$wxUSE_UNICODE_MSLU" = "yes"; then
         echo $ac_n "checking for main in -lunicows""... $ac_c" 1>&6
-echo "configure:20798: checking for main in -lunicows" >&5
+echo "configure:20802: checking for main in -lunicows" >&5
 ac_lib_var=`echo unicows'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -20802,14 +20806,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lunicows  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 20806 "configure"
+#line 20810 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:20813: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:20817: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -20991,17 +20995,17 @@ if test "$wxUSE_MSW" = 1 -a \( "$wxUSE_DATAOBJ"       = "yes" \
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:20995: checking for $ac_hdr" >&5
+echo "configure:20999: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 21000 "configure"
+#line 21004 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:21005: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:21009: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -21040,9 +21044,9 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 
             echo $ac_n "checking if g++ requires -fvtable-thunks""... $ac_c" 1>&6
-echo "configure:21044: checking if g++ requires -fvtable-thunks" >&5
+echo "configure:21048: checking if g++ requires -fvtable-thunks" >&5
             cat > conftest.$ac_ext <<EOF
-#line 21046 "configure"
+#line 21050 "configure"
 #include "confdefs.h"
 #include <windows.h>
                             #include <ole2.h>
@@ -21050,7 +21054,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:21054: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:21058: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""no" 1>&6
 else
@@ -21895,12 +21899,12 @@ have_floor=0
 for ac_func in cos
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:21899: checking for $ac_func" >&5
+echo "configure:21903: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 21904 "configure"
+#line 21908 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -21923,7 +21927,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:21927: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:21931: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -21950,12 +21954,12 @@ done
 for ac_func in floor
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:21954: checking for $ac_func" >&5
+echo "configure:21958: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 21959 "configure"
+#line 21963 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -21978,7 +21982,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:21982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:21986: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -22003,7 +22007,7 @@ fi
 done
 
 echo $ac_n "checking if floating point functions link without -lm""... $ac_c" 1>&6
-echo "configure:22007: checking if floating point functions link without -lm" >&5
+echo "configure:22011: checking if floating point functions link without -lm" >&5
 if test "$have_cos" = 1 -a "$have_floor" = 1; then
     echo "$ac_t""yes" 1>&6
 else
@@ -22015,12 +22019,12 @@ else
     for ac_func in sin
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:22019: checking for $ac_func" >&5
+echo "configure:22023: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 22024 "configure"
+#line 22028 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -22043,7 +22047,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:22047: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:22051: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -22070,12 +22074,12 @@ done
     for ac_func in ceil
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:22074: checking for $ac_func" >&5
+echo "configure:22078: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 22079 "configure"
+#line 22083 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -22098,7 +22102,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:22102: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:22106: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -22123,7 +22127,7 @@ fi
 done
 
     echo $ac_n "checking if floating point functions link with -lm""... $ac_c" 1>&6
-echo "configure:22127: checking if floating point functions link with -lm" >&5
+echo "configure:22131: checking if floating point functions link with -lm" >&5
     if test "$have_sin" = 1 -a "$have_ceil" = 1; then
         echo "$ac_t""yes" 1>&6
     else
@@ -22279,7 +22283,7 @@ SAMPLES_SUBDIRS="`echo $SAMPLES_SUBDIRS | tr -s ' ' | tr ' ' '\n' | sort | uniq
 
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:22283: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:22287: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
diff --git a/configure.in b/configure.in
index e10e493c56..a67a7fa24d 100644
--- a/configure.in
+++ b/configure.in
@@ -3934,11 +3934,18 @@ if test "$GCC" = "yes" ; then
     esac
 fi
 
+OPTIMISE=
 if test "$wxUSE_OPTIMISE" = "no" ; then
-    OPTIMISE=
+    if test "$GCC" = yes ; then
+        dnl use -O0 because compiling with it is faster than compiling with no
+        dnl optimization options at all (at least with g++ 3.2)
+        OPTIMISE="-O0"
+    fi
 else
     if test "$GCC" = yes ; then
         OPTIMISE="-O2"
+
+        dnl VZ: does anybody know what does this do??
         case "${host}" in
             i586-*-*|i686-*-* )
             OPTIMISE="${OPTIMISE} "
-- 
2.45.2