fixed MOC_FLAGS for QT4

ax_check_qt.m4

@@ -90,13 +90,13 @@ AC_DEFUN([AX_CHECK_QT], [
     HAVE_$1=1
     AC_DEFINE([HAVE_$1])
     AM_CPPFLAGS+=" ${[$1]5_CFLAGS}"
-    MOC_FLAGS+=" ${[$1]5_CFLAGS}"
+    MOC_FLAGS+=" -DHAVE_$1=1 ${[$1]5_CFLAGS}"
     AM_CXXFLAGS+=" ${[$1]5_CFLAGS}"
     LIBS+=" ${[$1]5_LIBS}"
     if test -n "${qt_modules_optional}"; then
       PKG_CHECK_MODULES([$1]5_OPTIONAL, [${qt_modules_optional//Qt/Qt5}], [
         AM_CPPFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
-        MOC_FLAGS+=" -DHAVE_$1=1 ${[$1]5_OPTIONAL_CFLAGS}"
+        MOC_FLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
         AM_CXXFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
         LIBS+=" ${[$1]5_OPTIONAL_LIBS}"
       ], [
@@ -108,13 +108,13 @@ AC_DEFUN([AX_CHECK_QT], [
       HAVE_$1=1
       AC_DEFINE([HAVE_$1])
       AM_CPPFLAGS+=" ${$1_CFLAGS}"
-      MOC_FLAGS+=" ${$1_CFLAGS}"
+      MOC_FLAGS+=" -DHAVE_$1=1 ${$1_CFLAGS}"
       AM_CXXFLAGS+=" ${$1_CFLAGS}"
       LIBS+=" ${$1_LIBS}"
       if test -n "$3"; then
         PKG_CHECK_MODULES($1_OPTIONAL, [${qt_modules_optional}], [
           AM_CPPFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
-          MOC_FLAGS+=" -DHAVE_$1=1 ${$1_OPTIONAL_CFLAGS}"
+          MOC_FLAGS+=" ${$1_OPTIONAL_CFLAGS}"
           AM_CXXFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
           LIBS+=" ${$1_OPTIONAL_LIBS}"
         ], [