some warnings (from Gentoos build process)

[Hanno Meyer-Thurow <h dot mth at web dot de>]

Hi list,
I get some warnings from Gentoos build process. Could be cool to get
them fixed somewhen. Well, just in case someone is interested in fixing this.

_____
 * QA Notice: The following files contain executable stacks
 *  Files with executable stacks will not work properly (or at all!)
 *  on some architectures/operating systems.  A bug should be filed
 *  at http://bugs.gentoo.org/ to make sure the file is fixed.
 *  For more information, see http://hardened.gentoo.org/gnu-stack.xml
 *  Please include this file in your report:
 *  /mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/temp/scanelf-execstack.log
 * RWX --- --- usr/lib/gcj-4.3.0_alpha20070216/lib64/libffi.so.4.0.1
RWX --- --- usr/lib/gcj-4.3.0_alpha20070216/lib64/libgcj.so.9.0.0

 # cat /mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/temp/scanelf-execstack.log
!WX --- --- work/build/x86_64-unknown-linux-gnu/libffi/src/x86/.libs/sysv.o
!WX --- --- work/build/x86_64-unknown-linux-gnu/libffi/src/x86/.libs/unix64.o

May be it could be fixed like OpenOffice.org's execstack issue:
http://qa.openoffice.org/issues/show_bug.cgi?id=70845

_____
 * QA Notice: Package has poor programming practices which may compile
 *            fine but exhibit random runtime failures.
 * /mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/work/gcc-4.3-20070216/libjava/jvmti.cc:1002: warning: dereferencing type-punned pointer will break strict-aliasing rules
/mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/work/gcc-4.3-20070216/libjava/jvmti.cc:1009: warning: dereferencing type-punned pointer will break strict-aliasing rules
/mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/work/gcc-4.3-20070216/libjava/jvmti.cc:1016: warning: dereferencing type-punned pointer will break strict-aliasing rules
/mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/work/gcc-4.3-20070216/libjava/gnu/classpath/jdwp/natVMVirtualMachine.cc:105: warning: dereferencing type-punned pointer will break strict-aliasing rules

 * QA Notice: Package has poor programming practices which may compile
 *            fine but exhibit random runtime failures.
 * /mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/work/gcc-4.3-20070216/libjava/classpath/native/fdlibm/dtoa.c:913: warning: incompatible implicit declaration of built-in function 'free'
/mnt/data/tmp/portage/dev-java/gcj-4.3.0_alpha20070216/work/gcc-4.3-20070216/libjava/classpath/native/fdlibm/dtoa.c:918: warning: incompatible implicit declaration of built-in function 'free'


Regards,
Hanno