build libreoffice 6.3.3.2.0 error on windows 10 with cygwin

[方振华(601661)]

build libreoffice 6.3.3.2.0 error on windows 10 with cygwin 



i modify *.hxx source code and run /opt/lo/bin/make in cygwin, i get some errors like "xxx" is not "xxx" member.



and then i remove the directory "xxx/build/workdir/PrecompileHeader/debug" and run  /opt/lo/bin/make in cygwin, it compile success.



so i want to konow why？，and how to disable precompileheader cache. 
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