diff --git a/src/meshlab/meshlab.pro b/src/meshlab/meshlab.pro
index e5c2442b7..fd36418f3 100644
--- a/src/meshlab/meshlab.pro
+++ b/src/meshlab/meshlab.pro
@@ -82,8 +82,9 @@ CONFIG(debug, debug|release) {
 	win32-g++:release:DEFINES -= NDEBUG
 }
 
-macx{
+mac{
 message( "We are on a mac: build universal binaries" )
-#CONFIG += ppc
+CONFIG += x86 ppc
 }
 
+
diff --git a/src/meshlabplugins/baseio/baseio.pro b/src/meshlabplugins/baseio/baseio.pro
index d0feff337..87cd11bcc 100644
--- a/src/meshlabplugins/baseio/baseio.pro
+++ b/src/meshlabplugins/baseio/baseio.pro
@@ -23,3 +23,5 @@ contains(TEMPLATE,lib) {
       else:TARGET = $$member(TARGET, 0)d
    }
 }
+
+mac:CONFIG += x86 ppc
diff --git a/src/meshlabplugins/cleanfilter/cleanfilter.pro b/src/meshlabplugins/cleanfilter/cleanfilter.pro
index c48d83698..758ef420c 100644
--- a/src/meshlabplugins/cleanfilter/cleanfilter.pro
+++ b/src/meshlabplugins/cleanfilter/cleanfilter.pro
@@ -14,6 +14,7 @@ CONFIG		+= debug_and_release
 # the following line is needed to avoid mismatch between 
 # the awful min/max macros of windows and the limits max
 win32:DEFINES += NOMINMAX
+mac:CONFIG += x86 ppc
 
 
 contains(TEMPLATE,lib) {
diff --git a/src/meshlabplugins/colladaio/colladaio.pro b/src/meshlabplugins/colladaio/colladaio.pro
index 7014dabd8..6a24421bb 100644
--- a/src/meshlabplugins/colladaio/colladaio.pro
+++ b/src/meshlabplugins/colladaio/colladaio.pro
@@ -6,6 +6,7 @@ SOURCES       = colladaio.cpp
 TARGET        = colladaio
 DESTDIR       = ../../meshlab/plugins
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 
 win32-msvc.net:LIBS     -= LIBCMTD.lib
diff --git a/src/meshlabplugins/editpaint/editpaint.pro b/src/meshlabplugins/editpaint/editpaint.pro
index c2cafdbeb..8983e957c 100755
--- a/src/meshlabplugins/editpaint/editpaint.pro
+++ b/src/meshlabplugins/editpaint/editpaint.pro
@@ -13,6 +13,7 @@ DEFINES += GLEW_STATIC
 QT += opengl
 RESOURCES = meshlab.qrc
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 contains(TEMPLATE,lib){
   CONFIG(debug, debug|release){
diff --git a/src/meshlabplugins/epoch_io/epoch_io.pro b/src/meshlabplugins/epoch_io/epoch_io.pro
index 6e1980473..b04cf342e 100644
--- a/src/meshlabplugins/epoch_io/epoch_io.pro
+++ b/src/meshlabplugins/epoch_io/epoch_io.pro
@@ -26,6 +26,7 @@ TARGET        = epoch_io
 DESTDIR       = ../../meshlab/plugins
 QT           += xml
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 win32-msvc.net:LIBS	+= ../../../../code/lib/bzip2-1.0.3/libbz2.lib
 win32-msvc2005:LIBS	+= ../../../../code/lib/bzip2-1.0.3/libbz2.lib
diff --git a/src/meshlabplugins/filtergeom/filtergeom.pro b/src/meshlabplugins/filtergeom/filtergeom.pro
index 5361e26c4..e09170a02 100644
--- a/src/meshlabplugins/filtergeom/filtergeom.pro
+++ b/src/meshlabplugins/filtergeom/filtergeom.pro
@@ -11,6 +11,7 @@ DESTDIR       = ../../meshlab/plugins
 # the following line is needed to avoid mismatch between 
 # the awful min/max macros of windows and the limits max
 win32:DEFINES += NOMINMAX
+mac:CONFIG += x86 ppc
 
 contains(TEMPLATE,lib) {
    CONFIG(debug, debug|release) {
diff --git a/src/meshlabplugins/meshcolorize/meshcolorize.pro b/src/meshlabplugins/meshcolorize/meshcolorize.pro
index bca87dae1..49c11cb58 100644
--- a/src/meshlabplugins/meshcolorize/meshcolorize.pro
+++ b/src/meshlabplugins/meshcolorize/meshcolorize.pro
@@ -11,6 +11,7 @@ DESTDIR       = ../../meshlab/plugins
 win32:DEFINES += NOMINMAX
 FORMS		  = equalizerDialog.ui
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 
 contains(TEMPLATE,lib) {
diff --git a/src/meshlabplugins/meshdecorate/meshdecorate.pro b/src/meshlabplugins/meshdecorate/meshdecorate.pro
index 5a30ea1f5..13eda242d 100644
--- a/src/meshlabplugins/meshdecorate/meshdecorate.pro
+++ b/src/meshlabplugins/meshdecorate/meshdecorate.pro
@@ -9,6 +9,7 @@ DESTDIR       = ../../meshlab/plugins
 # the awful min/max macros of windows and the limits max
 win32:DEFINES += NOMINMAX
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 
 contains(TEMPLATE,lib) {
diff --git a/src/meshlabplugins/meshedit/meshedit.pro b/src/meshlabplugins/meshedit/meshedit.pro
index 2cca37d33..c5d6802e3 100644
--- a/src/meshlabplugins/meshedit/meshedit.pro
+++ b/src/meshlabplugins/meshedit/meshedit.pro
@@ -13,6 +13,7 @@ RESOURCES     = meshlab.qrc
 # the awful min/max macros of windows and the limits max
 win32:DEFINES += NOMINMAX
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 contains(TEMPLATE,lib) {
    CONFIG(debug, debug|release) {
diff --git a/src/meshlabplugins/meshfilter/meshfilter.pro b/src/meshlabplugins/meshfilter/meshfilter.pro
index e783abd30..f7f8ace05 100644
--- a/src/meshlabplugins/meshfilter/meshfilter.pro
+++ b/src/meshlabplugins/meshfilter/meshfilter.pro
@@ -21,6 +21,7 @@ win32:DEFINES += NOMINMAX
 # all dialog are stored in meshlab/ui directory
 FORMS         = ui/transformDialog.ui ../../meshlab/ui/genericELDialog.ui
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 QT += opengl
 
diff --git a/src/meshlabplugins/meshio/meshio.pro b/src/meshlabplugins/meshio/meshio.pro
index 61b3cb088..85d9fd84b 100644
--- a/src/meshlabplugins/meshio/meshio.pro
+++ b/src/meshlabplugins/meshio/meshio.pro
@@ -23,6 +23,7 @@ mac:INCLUDEPATH  += ../../../../code/lib/lib3ds-1.2.0
 win32-g++:INCLUDEPATH  += ../../../../code/lib/lib3ds-1.2.0
 
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 unix{
 	CONFIG		+= warn_off debug_and_release
diff --git a/src/meshlabplugins/meshrender/meshrender.pro b/src/meshlabplugins/meshrender/meshrender.pro
index e5bc3e275..2324fc8c2 100644
--- a/src/meshlabplugins/meshrender/meshrender.pro
+++ b/src/meshlabplugins/meshrender/meshrender.pro
@@ -14,6 +14,7 @@ win32:DEFINES += NOMINMAX
 FORMS		  = shaderDialog.ui
 DEFINES += GLEW_STATIC
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 
 contains(TEMPLATE,lib) {
diff --git a/src/meshlabplugins/meshselect/meshselect.pro b/src/meshlabplugins/meshselect/meshselect.pro
index dd9c003ad..1c4f33ca0 100644
--- a/src/meshlabplugins/meshselect/meshselect.pro
+++ b/src/meshlabplugins/meshselect/meshselect.pro
@@ -11,6 +11,7 @@ RESOURCES     = meshlab.qrc
 # the awful min/max macros of windows and the limits max
 win32:DEFINES += NOMINMAX
 CONFIG		+= debug_and_release
+mac:CONFIG += x86 ppc
 
 contains(TEMPLATE,lib) {
    CONFIG(debug, debug|release) {
diff --git a/src/meshlabplugins/sampleplugins/samplefilter.pro b/src/meshlabplugins/sampleplugins/samplefilter.pro
index c87ea87f7..9e1ee0fa1 100644
--- a/src/meshlabplugins/sampleplugins/samplefilter.pro
+++ b/src/meshlabplugins/sampleplugins/samplefilter.pro
@@ -10,6 +10,7 @@ DESTDIR       = ../../meshlab/plugins
 # the following line is needed to avoid mismatch between 
 # the awful min/max macros of windows and the limits max
 win32:DEFINES += NOMINMAX
+mac:CONFIG += x86 ppc
 
 contains(TEMPLATE,lib) {
    CONFIG(debug, debug|release) {