doc: fix the "custom install targets" to handle DESTDIR
-rw-r--r-- 22 .gitignore
-rw-r--r-- 2331 CMakeLists.txt
-rw-r--r-- 12700 ChangeLog
-rw-r--r-- 18092 GPL-2
-rw-r--r-- 720 HACKING.asciidoc
-rw-r--r-- 2915 README.asciidoc
-rw-r--r-- 77 TODO
drwxr-xr-x - cmake_modules
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - examples
drwxr-xr-x - src