[cmake-developers] ninja bug on windows

[Bill Hoffman]

I am seeing that ninja always wants to relink the executables for me 
every time it is run.  The output is this:

$ ninja
[1/9] Linking C static library 
Utilities\cmlibarchive\libarchive\cmlibarchive.lib
[2/9] Linking CXX executable bin\cmake.exe
[3/9] Linking CXX executable bin\cmw9xcom.exe
[4/9] Linking CXX executable bin\cpack.exe
[5/9] Linking CXX executable bin\ctest.exe
[6/9] Linking CXX executable Tests\CMakeLib\CMakeLibTests.exe
[7/9] Generating ../Docs/ctest.txt
[8/9] Generating ../Docs/cpack.txt
[9/9] Generating ../Docs/cmake.txt

Looks like the problem is libarchive getting recreated each time.

-Bill