diff --git a/QQt.pro b/QQt.pro
index 4fac5ef7..8181576a 100644
--- a/QQt.pro
+++ b/QQt.pro
@@ -37,7 +37,9 @@ SUBDIRS += test/svgtest
 SUBDIRS += test/framelesshelperwidget
 SUBDIRS += test/treeviewtest
 SUBDIRS += test/qqtdicttest
-SUBDIRS += test/cmdwidget
+!contains(QKIT_PRIVATE, iOS|iOSSimulator){
+    SUBDIRS += test/cmdwidget
+}
 SUBDIRS += test/coretest
 
 #-----------------------------------------------------------------
diff --git a/examples/qqtframe2/link_qqt_library.pri b/examples/qqtframe2/link_qqt_library.pri
index 60899c4c..72fadea3 100644
--- a/examples/qqtframe2/link_qqt_library.pri
+++ b/examples/qqtframe2/link_qqt_library.pri
@@ -1,6 +1,9 @@
 #here is all your app common defination and configration
 #you can modify this pri to link qqt_library
 
+#this link need Qt Creator set default build directory, replace
+#%{JS: Util.asciify("/your/local/path/to/build/root/%{CurrentProject:Name}/%{Qt:Version}/%{CurrentKit:FileSystemName}/%{CurrentBuild:Name}")}
+
 equals(QMAKE_HOST.os, Darwin) {
     QQT_SOURCE_ROOT = $$PWD/../../
 } else: equals(QMAKE_HOST.os, Linux) {
@@ -9,26 +12,33 @@ equals(QMAKE_HOST.os, Darwin) {
     QQT_SOURCE_ROOT = $$PWD/../../
 }
 
+equals(QMAKE_HOST.os, Darwin) {
+    QQT_BUILD_ROOT = /Users/abel/Develop/c0-buildstation
+} else: equals(QMAKE_HOST.os, Linux) {
+    QQT_BUILD_ROOT = /home/abel/Develop/c0-buildstation
+} else: equals(QMAKE_HOST.os, Windows) {
+    QQT_BUILD_ROOT = C:/Users/Administrator/Develop/c0-build
+}
+
 #qqt qkit
 include($${QQT_SOURCE_ROOT}/src/qqt_kit.pri)
 
 #qqt version
 include($${QQT_SOURCE_ROOT}/src/qqt_version.pri)
 
-#link QQt static library in some occation
+#link QQt static library in some occation on windows
 equals(QKIT_PRIVATE, WIN32) {
     #Qt is static by mingw32 building
     mingw{
         DEFINES += QQT_STATIC_LIBRARY
     }
-}
-
-contains(DEFINES, QQT_STATIC_LIBRARY) {
-    DEFINES += QCUSTOMPLOT_STATIC_LIBRARY
-    DEFINES += QZXING_STATIC_LIBRARY
-    DEFINES += QT_QTSOAP_STATIC_LIBRARY
-    DEFINES += BUILD_QDEVICEWATCHER_STATIC
-    DEFINES += QT_QTMMLWIDGET_STATIC_LIBRARY
+    contains(DEFINES, QQT_STATIC_LIBRARY) {
+        DEFINES += QCUSTOMPLOT_STATIC_LIBRARY
+        DEFINES += QZXING_STATIC_LIBRARY
+        DEFINES += QT_QTSOAP_STATIC_LIBRARY
+        DEFINES += BUILD_QDEVICEWATCHER_STATIC
+        DEFINES += QT_QTMMLWIDGET_STATIC_LIBRARY
+    }
 }
 
 #qqt header
@@ -38,9 +48,11 @@ include($${QQT_SOURCE_ROOT}/src/qqt_header.pri)
 #CONFIG += BUILD_SRC
 contains (CONFIG, BUILD_SRC) {
     #if you want to build src but not link QQt in your project
+    #if you don't want to modify Qt Creator's default build directory, this maybe a choice.
     include($${QQT_SOURCE_ROOT}/src/qqt_source.pri)
 } else {
     #QKIT_PRIVATE from qqt_header.pri
+    #MOD: QQT_BUILD_ROOT
     contains(QKIT_PRIVATE, WIN32|WIN64) {
         CONFIG += link_from_build
     } else:contains(QKIT_PRIVATE, iOS|iOSSimulator) {
@@ -54,16 +66,6 @@ contains (CONFIG, BUILD_SRC) {
         CONFIG += link_from_sdk
     }
 
-    contains(CONFIG, link_from_build) {
-        equals(QMAKE_HOST.os, Darwin) {
-            QQT_BUILD_ROOT = /Users/abel/Develop/c0-buildstation
-        } else: equals(QMAKE_HOST.os, Linux) {
-            QQT_BUILD_ROOT = /home/abel/Develop/c0-buildstation
-        } else: equals(QMAKE_HOST.os, Windows) {
-            QQT_BUILD_ROOT = C:/Users/Administrator/Develop/c0-build
-        }
-    }
-
     #if you want to link QQt library
     include($${QQT_SOURCE_ROOT}/src/qqt_library.pri)
 }
diff --git a/src/exquisite/qrcode/qrdecode/zxing/zxing/ZXing.h b/src/exquisite/qrcode/qrdecode/zxing/zxing/ZXing.h
index 5087f27c..5c2341b8 100644
--- a/src/exquisite/qrcode/qrdecode/zxing/zxing/ZXing.h
+++ b/src/exquisite/qrcode/qrdecode/zxing/zxing/ZXing.h
@@ -63,10 +63,13 @@ inline bool isnan_z ( double v )
 {
     //std::? x
     //:: y
+#ifdef __ANDROIDX86__
     return ( ( sizeof ( v ) == sizeof ( float ) ) ? isnanf ( v )
              : ( sizeof ( v ) == sizeof ( double ) ) ? isnan ( v )
              : __isnanl ( v ) );
-    //return isnan ( v );
+#else
+    return isnan ( v );
+#endif
 }
 
 inline float nan() {return std::numeric_limits<float>::quiet_NaN();}
diff --git a/src/qqt_kit.pri b/src/qqt_kit.pri
index 50207a6d..da2d9d76 100644
--- a/src/qqt_kit.pri
+++ b/src/qqt_kit.pri
@@ -46,13 +46,14 @@ equals(QKIT_PRIVATE, EMBEDDED) {
     DEFINES += __ANDROID__
 } else:equals(QKIT_PRIVATE, ANDROIDX86) {
     DEFINES += __ANDROID__
+    DEFINES += __ANDROIDX86__
 }
 
-#QMAKESPEC_NAME = $${QMAKESPEC}
-#QMAKESPEC_NAME ~= s@^/.*/([^/]+)/?@\1@g
-#QMAKESPECS = $${QMAKESPEC}
-#QMAKESPECS ~= s:/[^/]*$::p
-#message ($$QMAKESPEC_NAME $$QMAKESPECS)
+QMAKESPEC_NAME = $${QMAKESPEC}
+QMAKESPEC_NAME ~= s@^/.*/([^/]+)/?@\1@g
+QMAKESPECS = $${QMAKESPEC}
+QMAKESPECS ~= s:/[^/]*$::p
+message (used spec: $$QMAKESPEC_NAME at here: $$QMAKESPECS )
 #equals(QMAKESPEC_NAME, EMBEDDED) {
 #    #embedded common macro
 #    DEFINES += __EMBEDDED_LINUX__
diff --git a/src/qqt_library.pri b/src/qqt_library.pri
index 14943a2f..3088bc8d 100644
--- a/src/qqt_library.pri
+++ b/src/qqt_library.pri
@@ -14,8 +14,6 @@ message(Link QQt to $${TARGET} $${QKIT_PRIVATE} \
     at $${QT_VERSION} $${SYSNAME} $${BUILD} \
     on $${QMAKE_HOST.os})
 
-#this configration need Qt Creator set default build directory
-#%{CurrentProject:Name}/%{Qt:Version}/%{CurrentKit:FileSystemName}/%{CurrentBuild:Name}")}
 contains(CONFIG, link_from_build) {
     QQT_LIB_PWD = $${QQT_BUILD_ROOT}/$${QQT_STD_DIR}/src/$${DESTDIR}
 } else {