Answering the following questions is a big help:

1.distcc 3.2rc1 2. cc (GCC) 4.5.3 CYGWIN_NT-5.1 whitexp 1.7.9(0.237/5/3) 2011-03-29 10:10 i686 Cygwin

3. during run of: pump make -j6 CC=distcc

4.output: __________Using distcc-pump from /usr/local/bin 4 [main] python2.6 3788 G:\cygwin\bin\python2.6.exe: * fatal error - unable to remap \?\G:\cygwin\usr\local\lib\python2.6\site-packages\include_server\distcc_pump_c_extensions.dll to same address as parent: 0x18B80000 != 0x68000000 Stack trace: Frame Function Args 0022B218 6102796B (0022B218, 00000000, 00000000, 00000000) 0022B508 6102796B (6117EC60, 00008000, 00000000, 61180977) 0022C538 61004F1B (611A7FAC, 612452CC, 18B80000, 68000000) End of stack trace 4 [main] python2.6 3160 fork: child 3788 - died waiting for dll loading, errno 11 Traceback (most recent call last): File "/usr/local/lib/python2.6/site-packages/include_server/include_server.py", line 687, in <module> Main() File "/usr/local/lib/python2.6/site-packages/include_server/include_server.py", line 640, in Main pid = os.fork() OSError: [Errno 11] Resource temporarily unavailable __________Expected a socket at '/tmp/distcc-pump.7IzbCk/socket' __________Could not start distcc-pump include server __________Warning: distcc-pump include server failed; running unpumped __________Found 2 available distcc servers

Google search for "unable to remap dll to same address as parent" pulls up

http://www.mylifestartingup.com/2009/04/fatal-error-unable-to-remap-to-same.html

which has a solution. (This problem is a Cygwin issue, not something specific to distcc.)