diff --git a/JKQtPlotterAppveyorBuild.pro b/JKQtPlotterAppveyorBuild.pro
index 40cef824a6..7076ae739c 100644
--- a/JKQtPlotterAppveyorBuild.pro
+++ b/JKQtPlotterAppveyorBuild.pro
@@ -1,23 +1,9 @@
 TEMPLATE = subdirs
 
-SUBDIRS +=  jkqtplotterlib \
-            jkqtplotterlib_sharedlib \
-            jkqtmathtextlib \
-            jkqtmathtextlib_sharedlib \
-            jkqtpcommonlib \
-            jkqtpcommonlib_sharedlib \
-            jkqtfastplotterlib \
+SUBDIRS +=  jkqtplotterlib_sharedlib \
             jkqtfastplotterlib_sharedlib
 
 
-jkqtplotterlib.file = qmake/staticlib/jkqtplotterlib/jkqtplotterlib.pro
 jkqtplotterlib_sharedlib.file = qmake/sharedlib/jkqtplotterlib/jkqtplotterlib.pro
 
-jkqtmathtextlib.file = qmake/staticlib/jkqtmathtextlib/jkqtmathtextlib.pro
-jkqtmathtextlib_sharedlib.file = qmake/sharedlib/jkqtmathtextlib/jkqtmathtextlib.pro
-
-jkqtpcommonlib.file = qmake/staticlib/jkqtpcommonlib/jkqtpcommonlib.pro
-jkqtpcommonlib_sharedlib.file = qmake/sharedlib/jkqtpcommonlib/jkqtpcommonlib.pro
-
-jkqtfastplotterlib.file = qmake/staticlib/jkqtfastplotterlib/jkqtfastplotterlib.pro
 jkqtfastplotterlib_sharedlib.file = qmake/sharedlib/jkqtfastplotterlib/jkqtfastplotterlib.pro
diff --git a/lib/jkqtplotter_pch.pri b/lib/jkqtplotter_pch.pri
new file mode 100644
index 0000000000..74d91bff5b
--- /dev/null
+++ b/lib/jkqtplotter_pch.pri
@@ -0,0 +1,8 @@
+isEmpty(JKQTP_PLOTTER_PRECOMP_PRI_INCLUDED) {
+    JKQTP_PLOTTER_PRECOMP_PRI_INCLUDED = 1
+
+    INCLUDEPATH += $PWD
+
+
+    PRECOMPILED_HEADER = $$PWD/jkqtplotter/private/jkqtplotter_precomp.h
+}
diff --git a/qmake/sharedlib/jkqtplotterlib/jkqtplotterlib.pro b/qmake/sharedlib/jkqtplotterlib/jkqtplotterlib.pro
index f91a701bac..a16bce8816 100644
--- a/qmake/sharedlib/jkqtplotterlib/jkqtplotterlib.pro
+++ b/qmake/sharedlib/jkqtplotterlib/jkqtplotterlib.pro
@@ -19,4 +19,10 @@ win32-msvc*: DEFINES += NOMINMAX
 include(../../../lib/jkqtplotter.pri)
 include(../../../lib/jkqtpcommon.pri)
 include(../../../lib/jkqtmathtext.pri)
-include(../../../lib/jkqtfastplotter.pri)
\ No newline at end of file
+include(../../../lib/jkqtfastplotter.pri)
+
+
+include(../../../lib/jkqtplotter_pch.pri)
+precompile_header:!isEmpty(PRECOMPILED_HEADER) {
+  DEFINES += USING_PCH
+}
diff --git a/qmake/staticlib/jkqtplotterlib/jkqtplotterlib.pro b/qmake/staticlib/jkqtplotterlib/jkqtplotterlib.pro
index 253c442d84..3bfd2e05ca 100644
--- a/qmake/staticlib/jkqtplotterlib/jkqtplotterlib.pro
+++ b/qmake/staticlib/jkqtplotterlib/jkqtplotterlib.pro
@@ -16,3 +16,10 @@ include(../../../lib/jkqtfastplotter.pri)
 
 win32-msvc*: DEFINES += _USE_MATH_DEFINES
 win32-msvc*: DEFINES += NOMINMAX
+
+
+
+include(../../../lib/jkqtplotter_pch.pri)
+precompile_header:!isEmpty(PRECOMPILED_HEADER) {
+  DEFINES += USING_PCH
+}