qmake: don't mess up linking order of frameworks

make it "last one wins", consistently with regular libraries. this
isn't really relevant in qmake, because the order matters only for
static frameworks, which qmake defines out of existence.

note that specifying frameworks by full path does not work, so we
don't need to amend 9d76bee in that regard.

Change-Id: Ib027109339e1b5973c577d69906b6daf83ba9611
Reviewed-by: Joerg Bornemann <[email protected]>

qmake/generators/unix/unixmake.cpp

@@ -506,17 +506,14 @@ UnixMakefileGenerator::findLibraries(bool linkPrl, bool mergeLflags)
                             if (opt.startsWith("-Xarch"))
                                 opt = l.at(++lit); // The user has done the right thing and prefixed each part
                         }
-                        bool found = false;
                         for(int x = 0; x < lflags[arch].size(); ++x) {
                             if (lflags[arch].at(x) == "-framework" && lflags[arch].at(++x) == opt) {
-                                found = true;
+                                lflags[arch].remove(x - 1, 2);
                                 break;
                             }
                         }
-                        if(!found) {
-                            lflags[arch].append("-framework");
-                            lflags[arch].append(opt);
-                        }
+                        lflags[arch].append("-framework");
+                        lflags[arch].append(opt);
                     } else {
                         lflags[arch].append(opt);
                     }