--- engauge.orig.pro	2018-08-18 11:09:30.376816000 +0200
+++ engauge.pro	2018-08-18 11:11:20.963693884 +0200
@@ -848,8 +848,8 @@
 
 jpeg2000 {
     message("JPEG2000 support:   yes")
-    _OPENJPEG_INCLUDE = $$(OPENJPEG_INCLUDE)
-    _OPENJPEG_LIB = $$(OPENJPEG_LIB)
+    _OPENJPEG_INCLUDE = $(OPENJPEG_INCLUDE)
+    _OPENJPEG_LIB = $(OPENJPEG_LIB)
     isEmpty(_OPENJPEG_INCLUDE) {
       error("OPENJPEG_INCLUDE and OPENJPEG_LIB environment variables must be defined")
     } else {
@@ -858,9 +858,9 @@
       }
     }
     DEFINES += "ENGAUGE_JPEG2000"
-    INCLUDEPATH += $$(OPENJPEG_INCLUDE) \
+    INCLUDEPATH += $(OPENJPEG_INCLUDE) \
                    src/Jpeg2000
-    LIBS += -L$$(OPENJPEG_LIB) -lopenjp2
+    LIBS += -L$(OPENJPEG_LIB) -lopenjp2
     HEADERS += src/Jpeg2000/Jpeg2000.h \
                src/Jpeg2000/Jpeg2000Callbacks.h \
                src/Jpeg2000/Jpeg2000Color.h \
@@ -877,8 +877,8 @@
 
 pdf {
     message("PDF support:        yes")
-    _POPPLER_INCLUDE = $$(POPPLER_INCLUDE)
-    _POPPLER_LIB = $$(POPPLER_LIB)
+    _POPPLER_INCLUDE = $(POPPLER_INCLUDE)
+    _POPPLER_LIB = $(POPPLER_LIB)
     isEmpty(_POPPLER_INCLUDE) {
       error("POPPLER_INCLUDE and POPPLER_LIB environment variables must be defined")
     } else {
@@ -887,8 +887,8 @@
       }
     }
     DEFINES += "ENGAUGE_PDF"
-    LIBS += -L$$(POPPLER_LIB) -lpoppler-qt5
-    INCLUDEPATH += $$(POPPLER_INCLUDE)
+    LIBS += -L$(POPPLER_LIB) -lpoppler-qt5
+    INCLUDEPATH += $(POPPLER_INCLUDE)
     HEADERS += src/Dlg/DlgImportCroppingPdf.h \
                src/Import/ImportCroppingUtilPdf.h \
                src/Pdf/Pdf.h \