Much appreciate for the reply Mr.Wakely. So '-I." is the same as '-I-' except that the current directory is searched too, isn't it? On Sun, Sep 25, 2011 at 5:19 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 25 September 2011 14:31, ali hagigat wrote: >> gcc -Itmp3/hd1 -Itmp3/hd2 -I-tmp3/hd3 prog9.c -o prog9 >> >> I have used -I- in the above instruction. > > No you haven't, you've used -I-tmp/hd3 which is the same as -I -tmp/hd3 > > i.e. it adds the directory "-tmp/hd3" to the include path > > The -I- option doesn't take a directory, if it did the manual would say -I-dir >
