diff --git a/mkspecs/features/link_pkgconfig.prf b/mkspecs/features/link_pkgconfig.prf
index a3dbd1ffcc..91683f6392 100644
--- a/mkspecs/features/link_pkgconfig.prf
+++ b/mkspecs/features/link_pkgconfig.prf
@@ -5,8 +5,21 @@ for(PKGCONFIG_LIB, $$list($$unique(PKGCONFIG))) {
     # don't proceed if the .pro asks for a package we don't have!
     !packagesExist($$PKGCONFIG_LIB):error("Package $$PKGCONFIG_LIB not found")
 
-    QMAKE_CXXFLAGS += $$system($$PKG_CONFIG --cflags $$PKGCONFIG_LIB)
-    QMAKE_CFLAGS += $$system($$PKG_CONFIG --cflags $$PKGCONFIG_LIB)
+    PKGCONFIG_CFLAGS = $$system($$PKG_CONFIG --cflags $$PKGCONFIG_LIB)
+
+    PKGCONFIG_INCLUDEPATH = $$find(PKGCONFIG_CFLAGS, ^-I.*)
+    PKGCONFIG_INCLUDEPATH ~= s/^-I(.*)/\\1/g
+
+    PKGCONFIG_DEFINES = $$find(PKGCONFIG_CFLAGS, ^-D.*)
+    PKGCONFIG_DEFINES ~= s/^-D(.*)/\\1/g
+
+    PKGCONFIG_CFLAGS ~= s/^-[ID].*//g
+
+    INCLUDEPATH *= $$PKGCONFIG_INCLUDEPATH
+    DEFINES *= $$PKGCONFIG_DEFINES
+
+    QMAKE_CXXFLAGS += $$PKGCONFIG_CFLAGS
+    QMAKE_CFLAGS += $$PKGCONFIG_CFLAGS
     LIBS += $$system($$PKG_CONFIG --libs $$PKGCONFIG_LIB)
 }