The options are the same for this purpose. I am just running the test on Mac OS X. But I could use Linux as well. I don't think the results are different. On Fri, Jan 4, 2019 at 9:28 AM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > > On Fri, 4 Jan 2019 at 15:26, Peng Yu <pengyu.ut@xxxxxxxxx> wrote: > > > > On Fri, Jan 4, 2019 at 12:42 AM Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx> wrote: > > > > > > On 2019-01-03 21:18 -0600, Peng Yu wrote: > > > > > A "-c" option would work. > > > > > > > > This still generates the .o file. Is there an option that disable all > > > > the side effect but just print the header info as -H? > > > > > > Maybe "-E -o /dev/null"? Use "-E" instead of "-c" so the compiler and > > > assembler will not run, and "-o /dev/null" to throw the result > > > (preprocessed code). > > > > Thanks. This works. > > > > Is there a way to further strip off systems headers as in -MM? Thanks. > > You're not using GCC, so maybe you should ask on a Clang list. -- Regards, Peng
