PNBLACKLIST: use weak assignments

* this makes it easier to unblacklist it from local.conf which
  is parsed before the recipes

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/meta-oe/recipes-graphics/clutter/clutter-box2d_git.bb b/meta-oe/recipes-graphics/clutter/clutter-box2d_git.bb
index b19110af23..194d1046fd 100644
--- a/meta-oe/recipes-graphics/clutter/clutter-box2d_git.bb
+++ b/meta-oe/recipes-graphics/clutter/clutter-box2d_git.bb
@@ -5,7 +5,7 @@ LIC_FILES_CHKSUM = "file://box2d/License.txt;md5=e5d39ad91f7dc4692dcdb1d85139ec6
 # 0.12.1+gitAUTOINC+de5452e56b-r1/git/clutter-box2d/clutter-box2d.h:226:47:
 #  fatal error: clutter-box2d/clutter-box2d-child.h: No such file or directory
 # |  #include <clutter-box2d/clutter-box2d-child.h>
-PNBLACKLIST[clutter-box2d] = "BROKEN: doesn't build with B!=S"
+PNBLACKLIST[clutter-box2d] ?= "BROKEN: doesn't build with B!=S"
 
 SRCREV = "de5452e56b537a11fd7f9453d048ff4b4793b5a2"
 PV = "0.12.1+git${SRCPV}"
diff --git a/meta-oe/recipes-graphics/fim/fim_0.4-rc1.bb b/meta-oe/recipes-graphics/fim/fim_0.4-rc1.bb
index 1d4e3317ab..90ac702164 100644
--- a/meta-oe/recipes-graphics/fim/fim_0.4-rc1.bb
+++ b/meta-oe/recipes-graphics/fim/fim_0.4-rc1.bb
@@ -8,7 +8,7 @@ HOMEPAGE = "http://www.autistici.org/dezperado/fim/"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=fa01bff138cc98a62b8840a157951c88"
 
-PNBLACKLIST[fim] = "BROKEN: doesn't build with B!=S (flex: can't open lex.lex)"
+PNBLACKLIST[fim] ?= "BROKEN: doesn't build with B!=S (flex: can't open lex.lex)"
 
 # flex with provide /usr/include/FlexLexer.h
 DEPENDS = "flex-native bison-native flex"
diff --git a/meta-oe/recipes-graphics/xorg-driver/xf86-input-mtev_git.bb b/meta-oe/recipes-graphics/xorg-driver/xf86-input-mtev_git.bb
index a1943be0ae..547ec86c16 100644
--- a/meta-oe/recipes-graphics/xorg-driver/xf86-input-mtev_git.bb
+++ b/meta-oe/recipes-graphics/xorg-driver/xf86-input-mtev_git.bb
@@ -5,7 +5,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=8a71d0475d08eee76d8b6d0c6dbec543"
 
 DEPENDS += "pixman"
 
-PNBLACKLIST[xf86-input-mtev] = "BROKEN: doesn't build with B!=S (Makefile without ${S} in sed call)"
+PNBLACKLIST[xf86-input-mtev] ?= "BROKEN: doesn't build with B!=S (Makefile without ${S} in sed call)"
 
 SRC_URI = "git://gitorious.org/xorg/xf86-input-mtev.git file://fix-it.patch"
 SRCREV = "1eb469166ffc095c5801475f057f911f97a6e641"