creation d'un systeme modulaire de compilation des bibliothèques de composants

+system(pkg-config --exists Coin):HAS_COIN=TRUE
+!isEmpty(HAS_COIN) {
+    message (Coin was found)
+}

+system(pkg-config --exists libavformat && pkg-config --exists libavcodec && pkg-config --exists libavutil &&pkg-config --exists libswscale )
+system(pkg-config --atleast-version=52.25 libavcodec):OK_FFMPEG+=avcodec
+system(pkg-config --atleast-version=52.102 libavformat):OK_FFMPEG+=avformat
+system(pkg-config --atleast-version=0.12 libswscale):OK_FFMPEG+=swscale
+
+!isEmpty(OK_FFMPEG)  {
+        message(Good versions of libraries: $$OK_FFMPEG)
+}
+
+count(OK_FFMPEG,3) {
+     message (ffmpeg was found)
+     HAS_FFMPEG=TRUE
+}    

+system(pkg-config --exists Kenny):HAS_KENNY=TRUE
+
+isEmpty(HAS_KENNY) {
+    message (Oh my God they killed Kenny!)
+}

+system(pkg-config --exists opencv):HAS_OPENCV=TRUE
+!isEmpty(HAS_OPENCV) {
+    message (OpenCV was found)
+}
+

+OSGLIBS=openscenegraph-osg openscenegraph-osgDB openscenegraph-osgShadow \
+    openscenegraph-osgViewer openscenegraph-osgManipulator \
+    openscenegraph-osgText openscenegraph-osgTerrain openscenegraph-osgVolume \
+    openscenegraph-osgAnimation openscenegraph-osgSim openscenegraph-osgFX \
+    openscenegraph-osgGA openscenegraph-osgQt
+
+system(pkg-config --exists $${OSGLIBS}):HAS_OSG=TRUE
+!isEmpty(HAS_OSG) {
+    message (Openscenegraph was found)
+}
+

+!isEmpty(HAS_FFMPEG) {
+  SUBDIRS+=imageprocessing/ffmpeg
+  message(imageprocessing/ffmpeg included)
+}

+!isEmpty(HAS_OPENCV) {
+  SUBDIRS+=imageprocessing/opencv
+  message(imageprocessing/opencv included)
+}

+!isEmpty(HAS_OPENCV) {
+  SUBDIRS+=legacy/input/framegrabber/opencv
+  message(legacy/input/framegrabber/opencv included)
+}

+!isEmpty(HAS_OPENCV) {
+  SUBDIRS+=legacy/opencv
+  message(legacy/opencv included)
+}

+!isEmpty(HAS_OPENCV) {
+  SUBDIRS+=legacy/pattern
+  message(legacy/pattern included)
+}

+!isEmpty(HAS_OPENCV) {
+  SUBDIRS+=legacy/poseestimators
+  message(legacy/poseestimators included)
+}

+!isEmpty(HAS_COIN) {
+  SUBDIRS+=scene/coin
+  message(scene/coin included)
+}
\ No newline at end of file

+!isEmpty(HAS_COIN) {
+  SUBDIRS+=scene/coinutils
+  message(scene/coinutils included)
+}

+!isEmpty(HAS_COIN) {
+	!isEmpty(HAS_OPENCV) {
+	  SUBDIRS+=scene/cv2so
+	  message(scene/cv2so included)
+	}
+}

+!isEmpty(HAS_COIN) {
+  SUBDIRS+=scene/obj2so
+  message(scene/obj2so included)
+}

+!isEmpty(HAS_OSG) {
+  SUBDIRS+=scene/osg
+  message(scene/osg included)
+}