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Re: Build failure in gettimeofday
From: |
Eli Zaretskii |
Subject: |
Re: Build failure in gettimeofday |
Date: |
Wed, 16 Sep 2020 17:41:58 +0300 |
> Cc: emacs-devel@gnu.org
> From: martin rudalics <rudalics@gmx.at>
> Date: Wed, 16 Sep 2020 10:21:56 +0200
>
> Thank you. A -O0 -g3 build succeeds now but a -O3 build currently
> fails thusly:
>
> In file included from ../../src/emacs.c:68:0:
> ../../src/bignum.h:25:17: fatal error: gmp.h: No such file or directory
> #include <gmp.h>
> ^
> compilation terminated.
> make[1]: *** [emacs.o] Error 1
??? How did the -O0 build get past this problem? Header file
inclusion doesn't depend on optimizations. Are you sure you have a
clean working tree, devoid of stale object files?
Anyway, it sounds like you don't have GMP installed? In that case,
running configure is supposed to create lib/gmp.h, and the above
inclusion in bignum.h is supposed to find it. It works for me on a
system where there's no libgmp. Do you have lib/gmp.h? If you do,
then perhaps this is a compiler bug: it should be able to find that
file, because the compiler switches include "-I../lib".
If you don't have lib/gmp.h, then your tree is mis-configured somehow.
Or maybe this is another aspect of our less-than-ideal support for
out-of-tree builds.
> but I doubt that these can be relevant. Any clues? A couple of
> warnings from the -O0 build just in case they could hint at anything.
>
> CC menu.o
> ../../src/xdisp.c: In function 'move_it_in_display_line_to':
> ../../src/xdisp.c:9557:10: warning: unknown conversion type character 't' in
> format [-Wformat=]
> IT_CHARPOS (*it));
> ^
> ../../src/xdisp.c:9557:10: warning: too many arguments for format
> [-Wformat-extra-args]
> ../../src/xdisp.c: In function 'move_it_to':
> ../../src/xdisp.c:9925:8: warning: unknown conversion type character 't' in
> format [-Wformat=]
> move_trace ("move_it: from %td\n", IT_CHARPOS (*it));
> ^
> ../../src/xdisp.c:9925:8: warning: too many arguments for format
> [-Wformat-extra-args]
> ../../src/xdisp.c:9928:8: warning: unknown conversion type character 't' in
> format [-Wformat=]
That's because of your ancient version of GCC. You will have to live
with this.
> ../../src/data.c: In function 'bignum_arith_driver':
> ../../src/data.c:2821:9: warning: assignment from incompatible pointer type
> [enabled by default]
> accum = &mpz[0];
> ^
> ../../src/data.c:2843:13: warning: assignment from incompatible pointer type
> [enabled by default]
> accum = &mpz[0];
> ^
That's the usual noise with GCC 4.x when compiling mini-gmp. I
reported this as a bug, but no one wants to fix it, so I guess us
providing mini-gmp is just a lip service, and you are advised to
install libgmp if you are annoyed enough by these warnings.
- Build failure in gettimeofday, martin rudalics, 2020/09/09
- Re: Build failure in gettimeofday, Eli Zaretskii, 2020/09/09
- Re: Build failure in gettimeofday, martin rudalics, 2020/09/14
- Re: Build failure in gettimeofday, Eli Zaretskii, 2020/09/14
- Re: Build failure in gettimeofday, martin rudalics, 2020/09/15
- Re: Build failure in gettimeofday, Eli Zaretskii, 2020/09/15
- Re: Build failure in gettimeofday, martin rudalics, 2020/09/16
- Re: Build failure in gettimeofday,
Eli Zaretskii <=
- Re: Build failure in gettimeofday, martin rudalics, 2020/09/17
- Re: Build failure in gettimeofday, Eli Zaretskii, 2020/09/17
- Re: Build failure in gettimeofday, martin rudalics, 2020/09/18
- Re: Build failure in gettimeofday, Eli Zaretskii, 2020/09/18
- Re: Build failure in gettimeofday, martin rudalics, 2020/09/18
- Re: Build failure in gettimeofday, Eli Zaretskii, 2020/09/18