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-2.7.1/configure.in.orig	2011-11-07 10:05:49.959873160 -0800

     6 +++ Python-2.7.1/configure.in	2011-11-07 10:05:38.932222244 -0800

     7 @@ -1812,11 +1812,11 @@

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

     9  	SunOS/5*) 

    10  		if test "$GCC" = "yes" ; then

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

    12 -			LDCXXSHARED='$(CXX) -shared'

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

    14 +			LDCXXSHARED='$(CXX) -shared -Wl,-Bsymbolic'

    15  		else

    16 -			LDSHARED='$(CC) -G'

    17 -			LDCXXSHARED='$(CXX) -G'

    18 +			LDSHARED='$(CC) -G -Wl,-Bsymbolic'

    19 +			LDCXXSHARED='$(CXX) -G -Wl,-Bsymbolic'

    20  		fi ;;

    21  	hp*|HP*)

    22  		if test "$GCC" = "yes" ; then

    23 @@ -2008,7 +2008,7 @@

    24  		  *gcc*)

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

    26  		    then

    27 -			LINKFORSHARED="-Xlinker --export-dynamic"

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

    29  		    fi;;

    30  		  esac;;

    31  	CYGWIN*)