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Re: "rpl_fprintf" not found if compiled with options "-ggdb -Og"

From: Bjarni Ingi Gislason
Subject: Re: "rpl_fprintf" not found if compiled with options "-ggdb -Og"
Date: Sun, 1 Aug 2021 01:33:00 +0000
User-agent: Mutt/1.10.1 (2018-07-13)

On Sat, Jul 31, 2021 at 01:31:55AM -0700, Paul Eggert wrote:
> On 7/30/21 6:43 PM, Bjarni Ingi Gislason wrote:
> >    Actually I am using the current repository of both "groff" and
> > "gnulib".
> I can't reproduce the problem that way, either. I'm using Ubuntu 21.04. I
> clone Savannah's latest groff (7ae6d67b7c310c54bb7176c761b1f9719e64201a),
> run this:
> ./bootstrap --gnulib-srcdir=$HOME/src/gnu/gnulib-savannah
> ./configure
> make CFLAGS='-ggdb -Og'
> and it builds (there are quite a few warnings, which should get fixed, but
> nothing fatal to the build). $HOME/src/gnu/gnulib-savannah contains a copy
> of Savannah's latest Gnulib (commit
> 804ac808a9b17d7ee7cf49f7c713c4a4e4d6423f).
> The symptoms you're reporting are that of a partial build that isn't being
> resumed correctly somehow.
> By the way, I've not had much luck with -Og. I have better luck with -O0
> when debugging. But then, I mostly debug C code, not C++.

  Thanks for testing.

  I compile in the directory "groff/build".

  I have two branches, my own and master.

  The error is in my branch.

  It is caused by having simultaneously




  Changing the value from 2 to 0 or 1, eliminates the error.

  My version of glibc is 2.31-13 (Debian, testing).

  As Debian uses both '-O2' and "-D_FORTIFY_SOURCE=2" for its
a fix seems to be necessary.


  In the master branch I get, with the default output from "configure",

  CC       src/devices/xditview/gxditview-page.o
In file included from /usr/include/X11/Xos.h:89,
                 from ../src/devices/xditview/page.c:7:
./lib/unistd.h:663:3: error: #error "Please include config.h first."
  663 |  #error "Please include config.h first."
      |   ^~~~~
./lib/unistd.h:665:24: error: expected ';' before 'extern'
      |                        ^
      |                        ;
./lib/unistd.h:2815:22: error: expected ';' before 'struct'
      |                      ^
      |                      ;
make[1]: *** [Makefile:7219: src/devices/xditview/gxditview-page.o]
Error 1
make[1]: Leaving directory '/home/bg/git/groff/build'

  In my branch I have added the missing '#include "config.h"' in
and other missing "config.h" lines in other source files.

Bjarni I. Gislason

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