3 files changed, 24 insertions, 20 deletions
diff --git a/src/plugins/imageformats/jpeg/jpeg.pro b/src/plugins/imageformats/jpeg/jpeg.pro
index 5b45422..0b5d389 100644
--- a/src/plugins/imageformats/jpeg/jpeg.pro
+++ b/src/plugins/imageformats/jpeg/jpeg.pro
@@ -22,10 +22,9 @@ symbian: {
 }
 
 contains(QT_CONFIG, system-jpeg) {
-        unix:LIBS += -ljpeg
-        win32:LIBS += libjpeg.lib
-}
-!contains(QT_CONFIG, system-jpeg) {
+        unix|win32-g++*:LIBS += -ljpeg
+        win32:!win32-g++*:LIBS += libjpeg.lib
+} else {
 	INCLUDEPATH += ../../../3rdparty/libjpeg
 	SOURCES  += \
 	    ../../../3rdparty/libjpeg/jaricom.c \
diff --git a/src/plugins/imageformats/mng/mng.pro b/src/plugins/imageformats/mng/mng.pro
index de7dfa7..c188b47 100644
--- a/src/plugins/imageformats/mng/mng.pro
+++ b/src/plugins/imageformats/mng/mng.pro
@@ -14,10 +14,9 @@ symbian: {
 }
 
 contains(QT_CONFIG, system-mng) {
-        unix:LIBS += -lmng
-        win32:LIBS += libmng.lib
-}
-!contains(QT_CONFIG, system-mng) {
+        unix|win32-g++*:LIBS += -lmng
+        win32:!win32-g++*:LIBS += libmng.lib
+} else {
         DEFINES += MNG_BUILD_SO
         DEFINES += MNG_NO_INCLUDE_JNG
 	INCLUDEPATH += ../../../3rdparty/libmng
@@ -44,10 +43,11 @@ contains(QT_CONFIG, system-mng) {
 }
 
 contains(QT_CONFIG, system-zlib) {
-        LIBS += -lz
-}
-!contains(QT_CONFIG, system-zlib) {
-        INCLUDEPATH +=  ../../../3rdparty/zlib
+    symbian:LIBS_PRIVATE += -llibz
+    else:if(unix|win32-g++*):LIBS_PRIVATE += -lz
+    else:LIBS += zdll.lib
+} else {
+    INCLUDEPATH +=  ../../../3rdparty/zlib
 }
 
 QTDIR_build:DESTDIR = $$QT_BUILD_TREE/plugins/imageformats
diff --git a/src/plugins/imageformats/tiff/tiff.pro b/src/plugins/imageformats/tiff/tiff.pro
index 3cb64ad..90868e8 100644
--- a/src/plugins/imageformats/tiff/tiff.pro
+++ b/src/plugins/imageformats/tiff/tiff.pro
@@ -8,10 +8,14 @@ SOURCES += main.cpp \
            qtiffhandler.cpp
 
 contains(QT_CONFIG, system-tiff) {
-        unix:LIBS += -ltiff
-        win32:LIBS += libtiff.lib
-}
-!contains(QT_CONFIG, system-tiff) {
+        unix|win32-g++*:LIBS += -ltiff
+        win32:!win32-g++*:LIBS += libtiff.lib
+
+        contains(QT_CONFIG, system-jpeg) {
+                unix|win32-g++*:LIBS += -ljpeg
+                win32:!win32-g++*:LIBS += libjpeg.lib
+        }
+} else {
 	INCLUDEPATH += ../../../3rdparty/libtiff/libtiff
 	SOURCES  += \
 	    ../../../3rdparty/libtiff/libtiff/tif_aux.c \
@@ -64,10 +68,11 @@ contains(QT_CONFIG, system-tiff) {
 }
 
 contains(QT_CONFIG, system-zlib) {
-        LIBS += -lz
-}
-!contains(QT_CONFIG, system-zlib) {
-        INCLUDEPATH +=  ../../../3rdparty/zlib
+    symbian:LIBS_PRIVATE += -llibz
+    else:if(unix|win32-g++*):LIBS_PRIVATE += -lz
+    else:LIBS += zdll.lib
+} else {
+    INCLUDEPATH +=  ../../../3rdparty/zlib
 }
 
 QTDIR_build:DESTDIR = $$QT_BUILD_TREE/plugins/imageformats