diff --git a/common/wscript b/common/wscript
index fcf1d495..498b3ac4 100644
--- a/common/wscript
+++ b/common/wscript
@@ -37,8 +37,6 @@ def create_jack_process_obj(bld, target, sources, uselib = None):
     if bld.env['IS_LINUX']:
         process.env.append_value("CPPFLAGS", "-fvisibility=hidden")
     if bld.env['IS_MACOSX']:
-        process.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-        #process.env.append_value("LINKFLAGS", "-arch i386 -arch ppc -arch x86_64")
         process.env.append_value("CPPFLAGS", "-fvisibility=hidden")
     process.install_path = '${ADDON_DIR}/'
     process.use = [uselib.name]
@@ -185,8 +183,6 @@ def build(bld):
 
     if bld.env['IS_MACOSX']:
         clientlib.env.append_value("CPPFLAGS", "-fvisibility=hidden")
-        clientlib.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-        #clientlib.env.append_value("LINKFLAGS", "-framework CoreAudio -framework vecLib -single_module -arch i386 -arch ppc -arch x86_64"
         clientlib.env.append_value("LINKFLAGS", "-framework CoreAudio -framework vecLib -single_module")
         clientlib.env.append_value("LINKFLAGS", "-compatibility_version 1 -current_version 1")
 
@@ -285,8 +281,6 @@ def build(bld):
 
     if bld.env['IS_MACOSX']:
         serverlib.env.append_value("CPPFLAGS", "-fvisibility=hidden")
-        serverlib.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-        #serverlib.env.append_value("LINKFLAGS", "-framework CoreAudio -framework vecLib -single_module -arch i386 -arch ppc -arch x86_64")
         serverlib.env.append_value("LINKFLAGS", "-framework CoreAudio -framework CoreFoundation -framework vecLib -single_module")
         serverlib.env.append_value("LINKFLAGS", "-compatibility_version 1 -current_version 1")
 
diff --git a/example-clients/wscript b/example-clients/wscript
index ba67614e..682368ef 100644
--- a/example-clients/wscript
+++ b/example-clients/wscript
@@ -69,10 +69,6 @@ def build(bld):
         prog.includes = os_incdir + ['../common/jack', '../common']
         prog.source = example_program_source
         prog.use = use
-        if bld.env['IS_MACOSX']:
-            prog.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-            #prog.env.append_value("LINKFLAGS", "-arch i386 -arch ppc -arch x86_64")
-            prog.env.append_value("LINKFLAGS", "")
         if bld.env['IS_LINUX']:
             prog.use += ['RT', 'M']
         if bld.env['IS_SUN']:
@@ -85,10 +81,6 @@ def build(bld):
         prog.includes = os_incdir + ['../common/jack', '../common']
         prog.source = 'transport.c'
         prog.use = ['clientlib']
-        if bld.env['IS_MACOSX']:
-            prog.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-            #prog.env.append_value("LINKFLAGS", "-arch i386 -arch ppc -arch x86_64")
-            prog.env.append_value("LINKFLAGS", "")
         if bld.env['IS_LINUX']:
             prog.use += ['RT', 'READLINE']
         if bld.env['IS_MACOSX']:
@@ -103,9 +95,6 @@ def build(bld):
         prog.source = 'capture_client.c'
         prog.use = ['clientlib']
         if bld.env['IS_MACOSX']:
-            prog.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-            #prog.env.append_value("LINKFLAGS", "-arch i386 -arch ppc -arch x86_64")
-            prog.env.append_value("LINKFLAGS", "")
             prog.use += ['SNDFILE']
         if bld.env['IS_LINUX']:
             prog.use += ['RT', 'SNDFILE']
@@ -146,10 +135,6 @@ def build(bld):
         lib.includes = os_incdir + ['../common/jack', '../common']
         lib.target = example_lib
         lib.source = example_lib_source
-        if bld.env['IS_MACOSX']:
-            lib.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-            #lib.env.append_value("LINKFLAGS", "-arch i386 -arch ppc -arch x86_64")
-            lib.env.append_value("LINKFLAGS", "")
         if bld.env['IS_SUN']:
             lib.env.append_value("LINKFLAGS", "-lm")
         lib.use = 'serverlib'
diff --git a/tests/wscript b/tests/wscript
index 70d48f0f..24d76e72 100644
--- a/tests/wscript
+++ b/tests/wscript
@@ -25,8 +25,5 @@ def build(bld):
         prog.source = test_program_sources
         if bld.env['IS_LINUX']:
             prog.uselib = 'RT'
-        if bld.env['IS_MACOSX']:
-            prog.env.append_value("CPPFLAGS", "-mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64")
-            #prog.env.append_value("LINKFLAGS", "-arch i386 -arch ppc -arch x86_64")
         prog.use = 'clientlib'
         prog.target = test_program