On Tue, Jul 23, 2013 at 9:58 AM, Hendrik Greving <hendrik.greving.in...@gmail.com> wrote: > If I set use_gcc_stdint=wrap, does tm.h suppose to include > config/glibc-stdint.h?
> Please reply to the mailing list, not just to me. Thanks. > If you are using glibc, you shoud add glibc-stdint.h to tm_file in > gcc/config.gcc; see many existing examples. If you aren't using > glibc, you may still want to do that, but you should make sure it is > correct for your target. Or you may need to define the same macros > that glibc-stdint.h defines, only with the values appropriate for your > target. I am copy'ing the email I accidently sent to Ian privately, so the answer will get properly archived in the mailing list. May I ask 2 follow-ups: 1. The new compiler doesn't seem to find /usr/include/stdint.h when compiling a sample test-case. The old one (old GCC version that had same target) did. I supposed this is related. Is this expected? 2. It is still a little unclear what use_gcc_stdint is for. I understand that GCC apparently need some stdint definitions. That's why I (can-) include glibc-stdint.h in tm.h by adding it in config.gcc. What role plays use_gcc_stdint then? On Mon, Jul 22, 2013 at 9:39 PM, Ian Lance Taylor <i...@google.com> wrote: > On Mon, Jul 22, 2013 at 8:28 PM, Hendrik Greving > <hendrik.greving.in...@gmail.com> wrote: >> After porting/re-targeting a very old backend (own target) to GCC >> 4.8.1, I am getting this when compiling: >> >> Fixing headers into /path/to/objdir/gcc/include-fixed for >> moon-unknown-none target >> No forbidden identifiers defined by this target >> echo timestamp > stmp-fixinc >> make[2]: *** No rule to make target >> `../../../../src/tools/fsf_4_8_1/gcc/ginclude/stdint.h', needed by >> `stmp-int-hdrs'. Stop. >> make[2]: Leaving directory `/path/to/objdir/gcc' >> make[1]: *** [all-gcc] Error 2 >> make[1]: Leaving directory `/path/to/objdir' >> make: *** [all] Error 2 >> >> Anybody knows what that is? > > Set use_gcc_stdint in gcc/config.gcc. Make sure your tm.h file > defines INT8_TYPE and friends one way or another. Look at > config/glibc-stdint.h. > > Ian
