--- TagsCheck.py
+++ TagsCheck.py
@@ -507,7 +507,7 @@ class TagsCheck(AbstractCheck.AbstractCheck):
                     printError(pkg, 'explicit-lib-dependency', d[0])
             if d[2] == rpm.RPMSENSE_EQUAL and string.find(d[1], '-') != -1:
                 printWarning(pkg, 'requires-on-release', d[0], d[1])
-            if string.find(d[1], '%') != -1:
+            if string.find(d[1], '%') != -1 or string.find(d[0], '%') != -1:
                 printError(pkg, 'percent-in-dependency', d[0], d[1])
 
         if not name:
@@ -665,29 +665,39 @@ class TagsCheck(AbstractCheck.AbstractCheck):
 
         obs=map(lambda x: x[0], pkg.obsoletes())
         provs=map(lambda x: x[0].split(':/')[0], pkg.provides())
+        reqs=map(lambda x: x[0], pkg.requires() + pkg.prereq())
         if pkg.name in obs:
             printError(pkg, 'obsolete-on-name')
         for o in obs:
             if not o in provs:
                 printWarning(pkg, 'obsolete-not-provided', o)
         for o in pkg.obsoletes():
-            if string.find(o[1], '%') != -1:
+            if string.find(o[1], '%') != -1 or string.find(o[0], '%') != -1:
                 printError(pkg, 'percent-in-obsoletes', o[0], o[1])
 
-        useless_provides=[]
+        useless_provides=set()
         for p in provs:
             if provs.count(p) != 1:
                 if p not in useless_provides:
-                    useless_provides.append(p)
+                    useless_provides.add(p)
         for p in useless_provides:
             printError(pkg, 'useless-explicit-provides',p)
 
+        useless_reqs=set()
+        for r in reqs:
+            if not r in useless_reqs:
+                useless_reqs.add(r)
+            else:
+                if r[0] != '/':
+                    printWarning(pkg, 'useless-explicit-requires', r)
         for p in pkg.provides():
-            if string.find(p[1], '%') != -1:
+            if string.find(p[1], '%') != -1 or string.find(p[0], '%') != -1:
                 printError(pkg, 'percent-in-provides', p[0], p[1])
+            if p[0] == pkg.name and not p[1]:
+                printError(pkg, 'unversioned-explicit-self-provides', p)
 
         for c in pkg.conflicts():
-            if string.find(c[1], '%') != -1:
+            if string.find(c[1], '%') != -1 or string.find(c[0], '%') != -1:
                 printError(pkg, 'percent-in-conflicts', c[0], c[1])
 
         expected='%s-%s-%s.%s.rpm' % (name, version, release, pkg.arch)
@@ -877,6 +887,10 @@ explicit Requires: tags.''',
 '''This package provides 2 times the same capacity. It should only provide it
 once.''',
 
+'unversioned-explicit-self-provides',
+'''This package provides it's own name explicitely, which might break
+upgrade path. self-provides are autogenerated. Remove the provide.''',
+
 'obsolete-on-name',
 '''A package should not obsolete itself, as it can cause weird errors in tools.''',
 
--- TagsCheck.py
+++ TagsCheck.py
@@ -711,6 +711,22 @@ class TagsCheck(AbstractCheck.AbstractCheck):
             if string.find(c[1], '%') != -1 or string.find(c[0], '%') != -1:
                 printError(pkg, 'percent-in-conflicts', c[0], c[1])
 
+        for c in pkg.supplements():
+            if string.find(c[1], '%') != -1 or string.find(c[0], '%') != -1:
+                printError(pkg, 'percent-in-supplements', c[0], c[1])
+
+        for c in pkg.suggests():
+            if string.find(c[1], '%') != -1 or string.find(c[0], '%') != -1:
+                printError(pkg, 'percent-in-suggests', c[0], c[1])
+
+        for c in pkg.enhances():
+            if string.find(c[1], '%') != -1 or string.find(c[0], '%') != -1:
+                printError(pkg, 'percent-in-enhances', c[0], c[1])
+
+        for c in pkg.recommends():
+            if string.find(c[1], '%') != -1 or string.find(c[0], '%') != -1:
+                printError(pkg, 'percent-in-recommends', c[0], c[1])
+
         expected='%s-%s-%s.%s.rpm' % (name, version, release, pkg.arch)
         basename=string.split(pkg.filename, '/')[-1]
         if basename != expected: