1 The use of -Bsymbolic here is not required for a profile-guided build, but

     2 provides noticeable performance improvements for Python applications.  This

     3 should be an acceptable change as runtime interposition on the Python

     4 interpreter library is generally undesirable.

     5 --- Python-2.6.4/configure.in.old	Wed Nov  2 15:49:33 2011

     6 +++ Python-2.6.4/configure.in	Wed Nov  2 15:58:07 2011

     7 @@ -1712,8 +1712,8 @@

     8  	IRIX*/6*) LDSHARED="ld ${SGI_ABI} -shared -all";;

     9  	SunOS/5*) 

    10  		if test "$GCC" = "yes"

    11 -		then LDSHARED='$(CC) -shared'

    12 -		else LDSHARED='$(CC) -G';

    13 +		then LDSHARED='$(CC) -shared -Wl,-Bsymbolic'

    14 +		else LDSHARED='$(CC) -G -Wl,-Bsymbolic';

    15  		fi ;;

    16  	hp*|HP*)

    17  		if test "$GCC" = "yes"

    18 @@ -1882,7 +1882,7 @@

    19  		  *gcc*)

    20  		    if $CC -Xlinker --help 2>&1 | grep export-dynamic >/dev/null

    21  		    then

    22 -			LINKFORSHARED="-Xlinker --export-dynamic"

    23 +			LINKFORSHARED="-Xlinker --export-dynamic -Xlinker -Bsymbolic"

    24  		    fi;;

    25  		  esac;;

    26  	CYGWIN*)