bitbake.conf: fix distro-less failure expanding FILESPATH

If DISTRO is not set, FILESPATH becomes littered with directories like
files/${DISTRO} etc. It won't bomb until you try to eval it - i.e.
manipulating FILESPATH directly with .= works fine, but calling e.g.
base_set_filespath() throws this:

ERROR: Failure expanding variable FILESPATH, expression was ${@blah} which
triggered exception SyntaxError: EOL while scanning string literal (FILESPATH,
line 1)

(From OE-Core rev: abacd7243a2e4cca216797c4a36ff66ae968ddbd)

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 07982d783d..a9fcf052c3 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -638,7 +638,7 @@ AUTO_LIBNAME_PKGS = "${PACKAGES}"
 # This works for  functions as well, they are really just environment variables.
 # Default OVERRIDES to make compilation fail fast in case of build system misconfiguration.
 OVERRIDES = "${TARGET_OS}:${TRANSLATED_TARGET_ARCH}:build-${BUILD_OS}:pn-${PN}:${MACHINEOVERRIDES}:${DISTROOVERRIDES}:forcevariable"
-DISTROOVERRIDES ?= "${DISTRO}"
+DISTROOVERRIDES ?= "${@d.getVar('DISTRO', True) or ''}"
 MACHINEOVERRIDES ?= "${MACHINE}"
 MACHINEOVERRIDES[vardepsexclude] = "MACHINE"