xcompile: slightly refactor variable expansion magic
treedacc1be7699a1d086b60df10016ce9fe56313e42
-rw-r--r-- 1926 .gitignore
-rw-r--r-- 91 .gitmodules
-rw-r--r-- 83 .gitreview
m--------- - 3rdparty
-rw-r--r-- 17987 COPYING
-rw-r--r-- 9379 Makefile
-rw-r--r-- 24445 Makefile.inc
-rw-r--r-- 2998 README
drwxr-xr-x - documentation
drwxr-xr-x - payloads
drwxr-xr-x - src
-rw-r--r-- 3225 toolchain.inc
drwxr-xr-x - util