Fix compilation with clang/clang++ - configure: we can't use CFLAGS f…

…or compiling C++ code, especially as CFLAGS would include -std=c99 which makes no sense for C++ - util-osx-cocoa.mm was compiled as a C++ file, not an objective-C++ file, gcc was forgiving about the error, clang++ isn't

mythtv/configure

@@ -738,7 +738,7 @@ check_cxx(){
     log check_cxx "$@"
     cat > $TMPCPP
     log_file $TMPCPP
-    check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
+    check_cmd $cxx $CPPFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 }
 
 check_cpp(){

mythtv/libs/libmythui/libmythui.pro

@@ -95,16 +95,12 @@ using_x11 {
 }
 
 macx {
-    QMAKE_EXT_CPP += .mm
-    QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_CFLAGS
-    HEADERS += screensaver-osx.h   DisplayResOSX.h   util-osx.h   util-osx-cocoa.h
-    SOURCES += screensaver-osx.cpp DisplayResOSX.cpp util-osx.cpp util-osx-cocoa.mm
-
-    QMAKE_CXXFLAGS += -F/System/Library/Frameworks/CoreServices.framework/Frameworks
-    QMAKE_CXXFLAGS += -F/System/Library/Frameworks/ApplicationServices.framework/Frameworks
-    QMAKE_CXXFLAGS += -F/System/Library/Frameworks/Carbon.framework/Frameworks
-    QMAKE_CXXFLAGS += -F/System/Library/Frameworks/Cocoa.framework/Frameworks
-    LIBS           += -framework Carbon -framework Cocoa -framework IOKit
+    HEADERS += screensaver-osx.h   DisplayResOSX.h   util-osx.h
+    SOURCES += screensaver-osx.cpp DisplayResOSX.cpp util-osx.cpp
+    QMAKE_OBJECTIVE_CXXFLAGS += $$QMAKE_CXXFLAGS
+    OBJECTIVE_HEADERS += util-osx-cocoa.h
+    OBJECTIVE_SOURCES += util-osx-cocoa.mm
+    LIBS              += -framework Carbon -framework Cocoa -framework IOKit
 
     using_appleremote {
         HEADERS += AppleRemote.h   AppleRemoteListener.h