Use CT_DoExecLog when building libelf.

/trunk/scripts/build/tools/100-libelf.sh | 7 4 3 0 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

 # Compute x86_64-specific values

 CT_DoArchValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

 }