- remove CPPFLAG XP_UNIX from CMake, Scons and Irix make, checked our own code and /usr/include, its only used in our netscape plugin.

- CMake on unix default OpenMP to enabled.
- Scons on linux default OpenMP to enabled.
- copying python is slow, for scons only copy if the directory has not been created.

config/linux2-config.py

@@ -165,6 +165,8 @@ BF_EXPAT = '/usr'
 BF_EXPAT_LIB = 'expat'
 BF_EXPAT_LIBPATH = '/usr/lib'
 
+WITH_BF_OPENMP = True
+
 ##
 CC = 'gcc'
 CXX = 'g++'
@@ -173,7 +175,7 @@ CXX = 'g++'
 
 CCFLAGS = ['-pipe','-fPIC','-funsigned-char','-fno-strict-aliasing']
 
-CPPFLAGS = ['-DXP_UNIX']
+CPPFLAGS = []
 CXXFLAGS = ['-pipe','-fPIC','-funsigned-char','-fno-strict-aliasing']
 REL_CFLAGS = ['-O2']
 REL_CCFLAGS = ['-O2']