On 1/8/23 21:18, Gaius Mulley wrote:
Jeff Law via Gcc-patches <gcc-patches@gcc.gnu.org> writes:
I've been getting sporatic errors like this since the introduction of
the modula-2 front-end:
In file included from ../../..//gcc/gcc/m2/mc-boot/GSFIO.c:29:
../../..//gcc/gcc/system.h:556:20: error: conflicting declaration of C function
'const char* strsignal(int)'
556 | extern const char *strsignal (int);
| ^~~~~~~~~
In file included from /usr/include/c++/12/cstring:42,
from ../../..//gcc/gcc/system.h:241:
/usr/include/string.h:478:14: note: previous declaration 'char* strsignal(int)'
478 | extern char *strsignal (int __sig) __THROW;
| ^~~~~~~~~
In file included from ../../..//gcc/gcc/system.h:707:
../../..//gcc/gcc/../include/libiberty.h:112:14: error: ambiguating new
declaration of 'char* basename(const char*)'
112 | extern char *basename (const char *) ATTRIBUTE_RETURNS_NONNULL
ATTRIBUTE_NONNULL(1);
| ^~~~~~~~
/usr/include/string.h:524:26: note: old declaration 'const char* basename(const
char*)'
524 | extern "C++" const char *basename (const char *__filename)
| ^~~~~~~~
make[1]: *** [../../..//gcc/gcc/m2/Make-lang.in:1364: m2/mc-boot/GSFIO.o] Error
1
They seem to come and go without rhyme or reason. For example build
#1885 on lm32-elf failed, while #1884 passed.
Aside from the fact that I coonfigure with --enable-languages=c,c++
and yet modula-2 stuff still gets built (can that be fixed?) it seems
like we're missing dependencies to ensure that the generated config.h
file is made before building the modula-2 stuff.
In a good build you'll see something like this:
config.status: creating auto-host.h
[ ... ]
Build GSFIO.o:
g++ -g -c -I. -I../../..//gcc/gcc/m2/mc-boot-ch
-I../../..//gcc/gcc/m2/mc-boot -I../../..//gcc/gcc/../include
-I../../..//gcc/gcc -I. -Im2/mc-boot -I../../..//gcc/gcc
-I../../..//gcc/gcc/m2/mc-boot -I../../..//gcc/gcc/../include
-I../../..//gcc/gcc/../libcpp/include -I../../..//gcc/gcc/../libcody
-I../../..//gcc/gcc/../libdecnumber
-I../../..//gcc/gcc/../libdecnumber/dpd -I../libdecnumber
-I../../..//gcc/gcc/../libbacktrace
../../..//gcc/gcc/m2/mc-boot/GSFIO.c -o m2/mc-boot/GSFIO.o
Which naturally works just fine.
In a bad build, auto-host.h is _not_ created before trying to build GSFIO.o.
Can you please take care of this. It's rather annoying to have builds
failing in the continuous testing system like this, particularly when
modula-2 isn't even enabled.
Jeff
Hi Jeff,
many apologies for the breakage - I've now added the Makefile
dependencies. I've also regenerated the m2 configure scripts
I'm still seeing it as of about 2 hours ago:
http://law-sandy.freeddns.org:8080/job/avr-elf/2125/console
A good run (yesterday):
http://law-sandy.freeddns.org:8080/job/avr-elf/2124/console
However, I did find that my scripts were enabling all languages -- sorry
I stated otherwise and blamed it on the M2 front-end. THe only issue we
need to resolve is the dependency problems.
jeff
