updates to the OS X build system :

- XCode project
- Scons :
    scons stopped working for Os X in the last month (dont know when) :

     * the '.' and '..' keywords in CCPPATH
          are not recognized anymore for sconscripts compiling files at
          a sub level
     * when doing a scons clean, the 3 subdirs in build dir are removed
      and scons then fail to recreate them (exten, intern, source)

this commit solve the first problem as a temp workaround
for the latter simply recreate the dirs manually

I will investigate that further when on vacations,  which i should already
 be.
 ;(

all 3 build systems are now working on Os X

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/avi/SConscript b/source/blender/avi/SConscript
index 9311999e123..56eaff26f0f 100644
--- a/source/blender/avi/SConscript
+++ b/source/blender/avi/SConscript
@@ -14,6 +14,7 @@ source_files = ['intern/avi.c',
                 'intern/rgb32.c']
 
 avi_env.Append (CPPPATH = ['.',
+                           '../avi',
                            '#/intern/guardedalloc'])
 
 avi_env.Append (CPPPATH=user_options_dict['JPEG_INCLUDE'])