waf: moved SKETCHBOOK to AP_BUILD_ROOT in ap_version.h

Tools/ardupilotwaf/boards.py

@@ -508,6 +508,7 @@ class Board:
     def build(self, bld):
         bld.ap_version_append_str('GIT_VERSION', bld.git_head_hash(short=True))
         bld.ap_version_append_int('GIT_VERSION_INT', int("0x" + bld.git_head_hash(short=True), base=16))
+        bld.ap_version_append_str('AP_BUILD_ROOT', bld.srcnode.abspath())
         import time
         ltime = time.localtime()
         if bld.env.build_dates:

wscript

@@ -584,12 +584,6 @@ def configure(cfg):
     else:
         cfg.env.ENABLE_HEADER_CHECKS = False
 
-    # TODO: Investigate if code could be changed to not depend on the
-    # source absolute path.
-    cfg.env.prepend_value('DEFINES', [
-        'SKETCHBOOK="' + cfg.srcnode.abspath() + '"',
-    ])
-
     # Always use system extensions
     cfg.define('_GNU_SOURCE', 1)