Re: signbit(), C++, and Solaris 10

[G. Branden Robinson]

[please keep groff@gnu in replies]

Hi Paul,

At 2024-11-21T21:14:35-0800, Paul Eggert wrote:
> You shouldn't need to put "#include <config.h>" at the start of every
> source file. It needs to be included first at the start of every
> compilation unit; that's good enough.

Ah, thanks for the tip.

> I see that some Groff .h files include config.h:
> 
> src/roff/troff/hvunits.h:20:#include <config.h>
> src/preproc/pic/pic.h:22:#include <config.h>
> src/include/lib.h:23:#include <config.h>
> src/include/ptable.h:20:#include <config.h>
> src/include/itable.h:20:#include <config.h>
> src/include/stringclass.h:20:#include <config.h>
> 
> Not sure why Groff does that.

My own too-credulous reading of a bug report, probably.  I'll take them
out.

> The .cpp or .c file should include config.h first, and .h files should
> therefore not need to include config.h.
> 
> This isn't your main problem, though. It's something to do with Gnulib
> and signbit. What C compiler are you using? What commmand do you use
> to configure Groff? (You may need a C++ expert like Bruno to help out
> here....)

config.log:
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by GNU roff configure 1.23.0.2461-5508c, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ ./configure --prefix=/home/gbranden
...
Reading specs from /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/specs
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/opt/csw/libexec/gcc/sparc-sun-solaris2.10/5.5.0/lto-wrapper
Target: sparc-sun-solaris2.10
Configured with: 
/home/dam/mgar/pkg/gcc5/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-5.5.0/configure
 --prefix=/opt/csw --exec_prefix=/opt/csw --bindir=/opt/csw/bin 
--sbindir=/opt/csw/sbin --libexecdir=/opt/csw/libexec --datadir=/opt/csw/share 
--sysconfdir=/etc/opt/csw --sharedstatedir=/opt/csw/share 
--localstatedir=/var/opt/csw --libdir=/opt/csw/lib 
--infodir=/opt/csw/share/info --includedir=/opt/csw/include 
--mandir=/opt/csw/share/man --enable-cloog-backend=isl --enable-java-awt=xlib 
--enable-languages=ada,c,c++,fortran,go,java,objc --enable-libada 
--enable-libssp --enable-nls --enable-objc-gc --enable-threads=posix 
--program-suffix=-5.5 --with-cloog=/opt/csw --with-gmp=/opt/csw 
--with-included-gettext --with-ld=/usr/ccs/bin/ld --without-gnu-ld 
--with-libiconv-prefix=/opt/csw --with-mpfr=/opt/csw --with-ppl=/opt/csw 
--with-system-zlib=/opt/csw --with-as=/usr/ccs/bin/as --without-gnu-as
Thread model: posix
gcc version 5.5.0 (GCC) 

Not the freshest release...

The host is part of the FSF France's compiler farm.

gcc210.fsffrance.org

Regards,
Branden

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