1 files changed, 17 insertions, 3 deletions

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 7bfb1d1912..45f9435fd8 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -393,7 +393,7 @@ python () {
     # These take the form:
     #
     # PACKAGECONFIG ??= "<default options>"
-    # PACKAGECONFIG[foo] = "--enable-foo,--disable-foo,foo_depends,foo_runtime_depends,foo_runtime_recommends"
+    # PACKAGECONFIG[foo] = "--enable-foo,--disable-foo,foo_depends,foo_runtime_depends,foo_runtime_recommends,foo_conflict_packageconfig"
     pkgconfigflags = d.getVarFlags("PACKAGECONFIG") or {}
     if pkgconfigflags:
         pkgconfig = (d.getVar('PACKAGECONFIG') or "").split()
@@ -440,8 +440,8 @@ python () {
         for flag, flagval in sorted(pkgconfigflags.items()):
             items = flagval.split(",")
             num = len(items)
-            if num > 5:
-                bb.error("%s: PACKAGECONFIG[%s] Only enable,disable,depend,rdepend,rrecommend can be specified!"
+            if num > 6:
+                bb.error("%s: PACKAGECONFIG[%s] Only enable,disable,depend,rdepend,rrecommend,conflict_packageconfig can be specified!"
                     % (d.getVar('PN'), flag))
 
             if flag in pkgconfig:
@@ -455,6 +455,20 @@ python () {
                     extraconf.append(items[0])
             elif num >= 2 and items[1]:
                     extraconf.append(items[1])
+
+            if num >= 6 and items[5]:
+                conflicts = set(items[5].split())
+                invalid = conflicts.difference(set(pkgconfigflags.keys()))
+                if invalid:
+                    bb.error("%s: PACKAGECONFIG[%s] Invalid conflict package config%s '%s' specified."
+                        % (d.getVar('PN'), flag, 's' if len(invalid) > 1 else '', ' '.join(invalid)))
+
+                if flag in pkgconfig:
+                    intersec = conflicts.intersection(set(pkgconfig))
+                    if intersec:
+                        bb.fatal("%s: PACKAGECONFIG[%s] Conflict package config%s '%s' set in PACKAGECONFIG."
+                            % (d.getVar('PN'), flag, 's' if len(intersec) > 1 else '', ' '.join(intersec)))
+
         appendVar('DEPENDS', extradeps)
         appendVar('RDEPENDS_${PN}', extrardeps)
         appendVar('RRECOMMENDS_${PN}', extrarrecs)