Backport #661 from trunk:
Improve handling of __cxa_atexit.

/branches/1.1/scripts/build/cc_gcc.sh | 18 15 3 0 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

 # Compute IA-64-specific values

 CT_DoArchValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

 }