Ensure PBX_DAHDI_TRANSCODE will evaluate to 0 if not found instead of empty.
tree38c85ec2e079b68f879a67b6eba85d4966c0d1b3
-rw-r--r-- 3 .cleancount
-rw-r--r-- 589 BUGS
-rw-r--r-- 18817 CHANGES
-rw-r--r-- 17986 COPYING
-rw-r--r-- 8633 CREDITS
-rw-r--r-- 3293 LICENSE
-rw-r--r-- 29826 Makefile
-rw-r--r-- 3974 Makefile.moddir_rules
-rw-r--r-- 2517 Makefile.rules
-rw-r--r-- 10371 README
-rw-r--r-- 8904 UPGRADE-1.2.txt
-rw-r--r-- 26089 UPGRADE.txt
-rw-r--r-- 32808 acinclude.m4
drwxr-xr-x - agi
drwxr-xr-x - apps
-rwxr-xr-x 839 bootstrap.sh
drwxr-xr-x - build_tools
drwxr-xr-x - cdr
drwxr-xr-x - channels
drwxr-xr-x - codecs
-rwxr-xr-x 44018 config.guess
-rwxr-xr-x 32429 config.sub
drwxr-xr-x - configs
-rwxr-xr-x 978467 configure
-rw-r--r-- 48360 configure.ac
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - formats
drwxr-xr-x - funcs
drwxr-xr-x - images
drwxr-xr-x - include
-rwxr-xr-x 6406 install-sh
drwxr-xr-x - keys
drwxr-xr-x - main
-rw-r--r-- 3579 makeopts.in
-rwxr-xr-x 6480 missing
-rwxr-xr-x 671 mkinstalldirs
drwxr-xr-x - pbx
drwxr-xr-x - redhat
drwxr-xr-x - res
-rw-r--r-- 2722 sample.call
drwxr-xr-x - sounds
drwxr-xr-x - static-http
drwxr-xr-x - utils