GCC: 100.000 files is too much

For my bachelor thesis, I do some performance comparisons of compilers. Today I wanted to see what happens if gcc 4.5.3 has to include 100.000 header files with just a simple printf inside. At least in Cygwin under Windows Server 2008 R2, this was too much, as you can see in the picture below. Now I have to find out the maximum number of header files gcc can process and hope that the other testees can also manage the same amount of files.