On Dec 5, 2007 1:44 AM, mahmoodn <nt_mahmood@xxxxxxxxx> wrote: > > For example look at this paragraph in that link: > > >To create a precompiled header file, simply compile it as you would any > other file, if necessary using the -x option to make >the driver treat it as > a C or C++ header file. You will probably want to use a tool like make to > keep the precompiled header >up-to-date when the headers it contains change. > > I can not understand it. My little understanding is, I just use normal > "make" for the first time. Then the compiler would create some precompiled > headers. After doing this, I could not find ant gch file for precompiled > header. No, it won't do it automaticalyy. You have to modify your Makefile a little. Say we have foo.cc and its header, foo.h, then something like this in the Makefile should work: CXX = g++ foo.o : foo.cc foo.h.gch <tab>$(CXX) -c $< foo.h.gch: foo.h <tab>$(CXX) -c $< -Tom Tom Browder Niceville, Florida USA
