config.substitutions.append(('%llvmgcc_only', site_exp['llvmgcc']))
for sub in ['llvmgcc', 'llvmgxx', 'emitir', 'compile_cxx', 'compile_c',
'link', 'shlibext', 'ocamlopt', 'llvmdsymutil', 'llvmlibsdir',
config.substitutions.append(('%llvmgcc_only', site_exp['llvmgcc']))
for sub in ['llvmgcc', 'llvmgxx', 'emitir', 'compile_cxx', 'compile_c',
'link', 'shlibext', 'ocamlopt', 'llvmdsymutil', 'llvmlibsdir',