Phil Barila, thank you very much!
My project is compiled with a makefile. The c header file exists on many different sub folder on "include" and "lib", and it's included in c file directly without the detail path, when compile it on linux shell with the makefile, it automatically produce these compile option such as " -I./include/library -I ./include/f1 -I./include/f2 ......", so the compiling is no error. But when compile in slickedit, it say "No such file or directory", because the "-I" option for these sub folder isn't produced. For the number of sub folder is large, manually add these sub folder to "include" option on project properties is inconvenient.
Is there some convenient way to add all sub folder of one folder to project "include" option?